The correct answer for the required values is 1825.5, 1,812.5, 165.2, 1,690, 1,935, and 245 respectively.
To find the mean, median, standard deviation, first quartile, third quartile, and interquartile range (IQR) of the full-time equivalent number of students (FTES) at Lake Tahoe Community College for the given years, we can solve it using the following formulas for various aspects:
Mean: μ = (Σx)/n
Median: Middle value of the data set
Standard deviation: σ = sqrt[Σ(x-μ)²/n]
First quartile (Q1): Median of the lower half of the data set
Third quartile (Q3): Median of the upper half of the data set
IQR: Q3 - Q1
Year FTES
2005-06 1,585
2006-07 1,690
2007-08 1,735
2008-09 1,935
2009-10 2,021
2010-11 1,890
1. μ = (Σx)/n = (1,585 + 1,690 + 1,735 + 1,935 + 2,021 + 1,890)/6 = 1,825.2
Therefore the mean is 1,825.2
2. To find the median, arrange the data in ascending order:
1,585, 1,690, 1,735, 1,890, 1,935, 2,021
Since there are an even number of values, the median is the average of the two middle values, which are 1,812.5 and 1,812.5. So, the median is:
Median = (1,812.5 + 1,812.5)/2 = 1,812.5
3. σ = sqrt[Σ(x-μ)²/n]
= sqrt[((1,585-1,825.2)² + (1,690-1,825.2)² + (1,735-1,825.2)² + (1,935-1,825.2)² + (2,021-1,825.2)² + (1,890-1,825.2)²)/6]
= 165.2
4. To find the first quartile (Q1), find the median of the lower half of the data set, which consists of the values 1,585, 1,690, and 1,735.
Since there are an odd number of values, the median is the middle value, which is 1,690. Therefore, Q1 = 1,690.
5. To find the third quartile (Q3), we need to find the median of the upper half of the data set, which consists of the values 1,890, 1,935, and 2,021.
Since there are an odd number of values, the median is the middle value, which is 1,935. Therefore, Q3 = 1,935
6. IQR = Q3 - Q1
Substituting the calculated values in the equation
IQR = 1935 - 1690
= 245
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Find two different linear mappings that map the square with vertices 0, 1, 1 + i, and i, onto the square with vertices −1, 0, i, −1 + i.
The linear Mapping of the square with vertices
1: x = -1 + (2/2)(x + iy), y = -1 + (2/2)(x - iy)
2: x = -1 + (2/2)(x + y), y = -1 + (2/2)(-x + y)
The first linear mapping can be found by using the following matrix:
M = [a b]
[c d]
where, a = 2/2, b = -1, c = -2/2, d = 1.
By multiplying the matrix M with the vector [x, y]T, the linear mapping can be obtained.
For example, for the point (0, 1):
M * [0, 1]T = [-1, 1]
Similarly, for the point (1 + i, i):
M * [1 + i, i]T = [-1 + i, -1 + i]
Therefore, we get the linear mapping:
x = -1 + (2/2)(x + iy), y = -1 + (2/2)(x - iy)
The second linear mapping can be found by using the following matrix:
N = [e f]
[g h]
where, e = 2/2, f = -1, g = 2/2, h = 1.
By multiplying the matrix N with the vector
[x, y]T, the linear mapping can be obtained.
For example, for the point (0, 1):
N * [0, 1]T = [-1, 1]
Similarly, for the point (1 + i, i):
N * [1 + i, i]T = [i, -1 + i]
Therefore, we get the linear mapping:
x = -1 + (2/2)(x + y), y = -1 + (2/2)(-x + y)
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Find the volumes of the solids generated by revolving the regions bounded by the graphs of the equations about the given lines. y = x y = 0 x = 6 (a) the x-axis (b) the y-axis (c) the line x = 6 (d) the line x = 9
The volume of the solid is 72π. of the x-axis, the volume of the solid is 72π of y axis, the volume of the solid is 192π of the line x=6 and the volume of the solid is 99π of the line x=9.
(a) Spinning the locale about the x-hub will make a strong with a round and hollow shape. The volume of the strong can be tracked down utilizing the equation:
[tex]V = ∫[a,b] πy^2 dx[/tex]
where an and b are the x-directions of the marks of convergence of the bends y=x and y=0.
The convergence focuses are (0,0) and (6,6). In this way, the restrictions of coordination are 0 and 6.
V = [tex]V = ∫[a,b] πy^2 dx[/tex]
=[tex]π(6^3)/3[/tex]
= 72π
The volume of the strong is 72π.
(b) Spinning the locale about the y-hub will make a strong with a round and hollow shape. The volume of the strong can be tracked down utilizing the equation:
V = [tex]∫[a,b] πx^2 dy[/tex]
where an and b are the y-directions of the marks of convergence of the bends y=x and y=0.
The convergence focuses are (0,0) and (6,6). In this way, the restrictions of coordination are 0 and 6.
V = [tex]∫[0,6] πy^2 dy[/tex]
= [tex]π(6^3)/3[/tex]
= 72π
The volume of the strong is 72π.
(c) Rotating the district about the line x=6 will make a strong with a washer shape. The volume of the strong can be tracked down utilizing the recipe:
V = [tex]∫[a,b] π(R^2 - r^2) dx[/tex]
where an and b are the x-directions of the marks of convergence of the bends y=x and y=0, R is the separation from the line of upheaval to the external edge of the strong (y=x), and r is the separation from the line of transformation to the internal edge of the strong (y=0).
The convergence focuses are (0,0) and (6,6). R=6 and r=0, since the strong stretches out from the line of insurgency to the bend y=x.
V =[tex]∫[0,6] π(6^2 - x^2) dx[/tex]
= [tex]π(6^3 - 2(6^3)/3)[/tex]
= 32π(6)
The volume of the strong is 192π.
(d) Rotating the locale about the line x=9 will make a strong with a washer shape. The volume of the strong can be tracked down utilizing the recipe:
V =[tex]∫[a,b] π(R^2 - r^2) dx[/tex]
where an and b are the x-directions of the marks of convergence of the bends y=x and y=0, R is the separation from the line of upheaval to the external edge of the strong (y=x), and r is the separation from the line of transformation to the internal edge of the strong (y=0).
The convergence focuses are (0,0) and (6,6). R=3, since the separation from the line x=9 to the bend y=x is 3 units. r=0, since the strong reaches out from the line of transformation to the bend y=x.
V = [tex]∫[0,6] π(3^2 - x^2) dx[/tex]
= [tex]π(3^3 - 2(6^2)(3) + 6^3/3)[/tex]
= 18π(6) - 27π
= 99π
The volume of the strong is 99π.
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Find the domain and the range of the following function.
f(x) =
x+3, for x≤-5
-1,
1
3x,
for -5
for x ≥ 6
The domain and the range for the function in this problem are given as follows:
Domain: All real values.Range: (∞, -2] U {-1} U [2, ∞).How to find the domain and the range of a function?The domain of a function is the set that contains all the values assumed by the values of x of the function.The range of a function is the set that contains all the values assumed by the values of y of the function.For this problem, the piecewise function is defined for all values of x, hence the domain is all real values.
The range is obtained as follows:
Up to x = -5: values of x from negative infinity to -5 + 3 = -2.Between x = -5 and x = 6: constant value of 1.x = 6 and greater: Minimum value of 6/3 = 2.Hence the composition of these three intervals is given as follows:
(∞, -2] U {-1} U [2, ∞).
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Estimate the mean of the number of eagles spotted during a tour group hike given in the following grouped frequency table. • Round the final answer to one decimal place. Value Interval Frequency 3-6 13 7-10 21 11-14 6 Provide your answer below:
The mean of the number of eagles spotted is 7.8
In our daily life, we encounter a lot of information in the form of numbers, tables, graphics, etc. This information can refer to goals, temperatures in different cities, most popular articles in student classes, etc. Data is collected information
Order refers to the frequency with which an event or value occurs. A frequency table is a table that lists items and indicates how often they occur.
Then, find the sum of all frequencies and multiply each class frequency by the midpoint for that class. Then find the mean of the frequency distribution using the formula where the mean of the clustered frequency distribution is given as ¯x=∑fixi∑fi.
here for rage 3-6 first find mean = (3+6)/2= 4.5 frequency =13
here for rage 7-10 first find mean =(7+10)/2=8.5 frequency =21
here for rage 11-14 first find mean =(11+14)/2=12.5 frequency 6
mean = (4.5*13+8.5*21+12.5*6)/(13+21+6)
=7.8
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Help me simplify it pls
The simplest term is [tex]\frac{(2x-5)}{(x-3)(x-2)}[/tex].
what is factorization?Factorization of a number or an algebraic expression means writing the given number or given expression as a product of its factors. For algebraic expressions these factors can be numbers, variables, or an algebraic expression
Given,[tex]\frac{x-1}{x^{2} -3x+2} +\frac{x-2}{x^{2} -5x+6}[/tex]
By factorizing the denominator we get,
[tex]\frac{x-1}{(x-2)(x-1)} +\frac{x-2}{(x-2)(x-3)}[/tex]
By cancelling the common terms we get,
[tex]\frac{1}{(x-2)} +\frac{1}{(x-3)}[/tex]
Taking LCM we get,
[tex]\frac{(x-2)+(x-3)}{(x-3)(x-2)}[/tex]
By simplifying, we get,
[tex]\frac{(2x-5)}{(x-3)(x-2)}[/tex]
Hence, the simplest term is [tex]\frac{(2x-5)}{(x-3)(x-2)}[/tex]
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Lola has 4
1
2
cups of rice. She uses
3
4
of the rice to make sushi rolls for dinner. She uses the rest of the rice to make rice pudding for dessert. How much rice does Lola use for the rice pudding?
Lola used 15/4 cups of rice to make rice pudding.
What are algebraic expressions?In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.Given is that Lola has 4[tex]\frac{1}{2}[/tex] cups of rice. She uses 3/4 of the rice to make sushi rolls for dinner. She uses the rest of the rice to make rice pudding for dessert.
Amount used by Lola for the rice pudding -
{x} = 4[tex]\frac{1}{2}[/tex] - 3/4
{x} = 9/2 - 3/4
{x} = 18/4 - 3/4
{x} = 15/4
Therefore, Lola used 15/4 cups of rice to make rice pudding.
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{Complete question -
Lola has 4[tex]\frac{1}{2}[/tex] cups of rice. She uses 3/4 of the rice to make sushi rolls for dinner. She uses the rest of the rice to make rice pudding for dessert. How much rice does Lola use for the rice pudding?}
equivalent linear expressions
The expression which is equivalent to -5(b - 6) as required to be determined in the task content is; -5b + 30.
What is Expression?A mathematical operation such as subtraction, addition, multiplication, or division is used to combine terms into an expression. In a mathematical expression, the following terms are used:
An absolute numerical number is referred to as a constant.Variable: A symbol without a set value is referred to as a variable.Term: A term can be made up of a single constant, a single variable, or a mix of variables and constants multiplied or divided.Coefficient: In an expression, a coefficient is a number that is multiplied by a variable.Since the expression given is; -5(b- 6).
By using the distributive property of numbers
= (-5 × b) + (-5 × -6)
= -5b + 30
Thus, the linear expression which is equivalent to -5(b - 6) as required is; -5b + 30.
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The Question attached seems to be incomplete/ inappropriate. the complete Question is:
Which expression is equivalent to -5(b - 6).
Do the ratios 8-16 and 3/6 form a proportion
Yes, The ratios 8/16 and 3/6 form a proportion.
What is Proportional?Any relationship that is always in the same ratio and quantity which vary directly with each other is called the proportional.
Given that;
The ratios are,
⇒ 8/16 and 3/6
Now, We know that;
Two ratio are equivalent to each other then, it is form a proportional relation.
Hence, We can check as;
⇒ 8 / 16 = 1/2
⇒ 3/6 = 1/2
Thus, The ratios 8/16 and 3/6 form a proportion.
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which of these existential quantifications are true, where the domain of x is the positive integers?
Two out of the three given existential quantifications are true, while one is false.
In mathematics, quantifiers are used to describe the properties of a set or a domain. One such quantifier is the existential quantifier, which is used to indicate the existence of at least one element in a set that satisfies a given property. In this case, we are interested in finding out which of the given existential quantifications are true, where the domain of x is restricted to positive integers. Let's explore this in more detail.
The domain of x is the set of positive integers, which means that x can only take on values such as 1, 2, 3, 4, and so on. The given existential quantifications are as follows:
∃x(x²=9)
∃x(x+3=5)
∃x(x²=2)
Let's examine each of these in turn.
∃x(x²=9)
This existential quantification is true. To see why, we need to find an integer value of x such that x² equals 9. We can easily see that x=3 satisfies this property, since 3² = 9. As 3 is an integer and satisfies the condition, the statement is true.
∃x(x+3=5)
This existential quantification is also true. We need to find an integer value of x such that x+3 equals 5. This can be easily done by subtracting 3 from both sides of the equation to get x=2. As 2 is an integer and satisfies the condition, the statement is true.
∃x(x²=2)
This existential quantification is false. We need to find an integer value of x such that x² equals 2. However, there is no such integer value of x. This can be proven using the fact that the square of any integer is always a non-negative integer. Therefore, the statement is false.
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Complete Question:
Which of these existential quantifications are true, where the domain of x is the positive integers?
∃x(x²=9)
∃x(x+3=5)
∃x(x²=2)
Use the commutative property of addition to collect like terms
Answer: The commutative property of addition states that changing the order of the terms being added does not change the sum. Therefore, we can rearrange the terms in an expression in any order we choose without changing the result.
For example, if we have the expression:
3x + 2y + 4x + 5y
We can use the commutative property of addition to rearrange the terms as:
3x + 4x + 2y + 5y
Then, we can collect the like terms (terms with the same variable and exponent) by combining the coefficients:
7x + 7y
So the simplified expression is 7x + 7y.
Step-by-step explanation:
please help asap I need this lesson passed.
The area of the triangle will be 1 square foot.
What is the Pythagorean theorem?Pythagorean theorem states that in the right angle triangle, the hypotenuse square is equal to the square of the sum of the other two sides. According to this statement, the areas of the squares on the other two sides add up to the size of the square whose side is the hypotenuse.
Calculate the value of x of the small right-angle triangle.
4² = ( 3 + x )² + (2 / 3 )²
16 + 9 + 6x + x² + 4 / 9
7 = x² + 6x + 4 / 9
9x² + 54x - 59 = 0
x = 0.9 ft
The area of the triangle will be calculated as:-
Area = ( 1/2 ) x 3.9 x ( 2 / 3 ) - (1/2 ) x 0.9 x ( 2 / 3 )
Area = ( 1 / 2 x 2 / 3 ) ( 3.9 - 0.9 )
Area = ( 1 / 3 ) x 3
Area = 1 square ft
Therefore, the triangle's area will be one square foot.
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Let X have probability mass function
x 1 2 3 4 5
px(x) 1/7 1/14 3/14 2/7 2/7a. Calculate P(X≤3).
b. Calculate P(X<3).
c. Calculate P(X<4.12|X>1.638).
d. Find the cumulative distribution function of X.
The formula for X's cumulative distribution function (CDF) is
a. Probability P(X≤3) = P(X=1) + P(X=2) + P(X=3) = 1/7 + 1/14 + 3/14 = 5/14
b. P(X<3) = P(X=1) + P(X=2) = 1/7 + 1/14 = 3/14
c. P(X<4.12|X>1.638) = P(2<X<4.12)/P(X>1.638) = [P(X=3)+P(X=4)]/[1-P(X=1)] = (3/14)/(11/14) = 3/11
d. The cumulative distribution function of X, for x = 5, F(5) = 1
a. Probability P(X≤3) = P(X=1) + P(X=2) + P(X=3) = 1/7 + 1/14 + 3/14 = 5/14
b. P(X<3) = P(X=1) + P(X=2) = 1/7 + 1/14 = 3/14
c. P(X<4.12|X>1.638) = P(2<X<4.12)/P(X>1.638) = [P(X=3)+P(X=4)]/[1-P(X=1)] = (3/14)/(11/14) = 3/11
d. The formula for X's cumulative distribution function (CDF) is
F(x) = P(X < x)
For x = 1, F(1) = 1/7
For x = 2, F(2) = 1/7 + 1/14 = 3/14
For x = 3, F(3) = 1/7 + 1/14 + 3/14 = 5/14
For x = 4, F(4) = 1/7 + 1/14 + 3/14 + 2/7 = 11/14
For x = 5, F(5) = 1
As a result, X's CDF is:
F(x) = {1/7, x < 1
3/14, 1 ≤ x < 2
5/14, 2 ≤ x < 3
11/14, 3 ≤ x < 4
1, x ≥ 4}
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prime factorization of 107
The probability for event A is 0.3, the probability for event B is 0.5, and the probability of events A and
the events independent?
because
The required probability that events A and B both occur is 0.15.
What is probability?Probability can be defined as the ratio of favorable outcomes to the total number of events.
The probability that events A and B both occur is given by the product of their individual probabilities if they are independent. Independence means that the occurrence of one event does not affect the probability of the other event.
In this case, the probability that events A and B both occur is given by:
0.3 × 0.5 = 0.15
So, the probability that events A and B both occur is 0.15.
It's important to note that without further information, we cannot determine if events A and B are independent. The probabilities of 0.3 and 0.5 are the individual probabilities of each event, but we would need to know if their occurrence affects each other to determine if they are independent.
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Because library books are read many times, glue is often applied to the spine of a book to keep the pages tight. A glue is considered successful if a book lasts at least 6 months before needing to be reglued. Two brands of glue, G and K, were tested to determine whether there was a difference in the proportion of books lasting at least 6 months. Let pG represent the proportion of books lasting at least 6 months when glued with G, and let pK represent the proportion of books lasting at least 6 months when glued with K. The following hypothesis test was conducted at the significance level of α=0.01
.
H0:pG=pKHa:pG≠pK
All conditions for inference were met, and the resulting p p-value was 0.006. Which of the following is the correct decision for the test?
The p-value is less than α, and the null hypothesis is rejected. There is not convincing evidence to support the claim that the proportion of books lasting at least 6 months when glued with G is different from the proportion of books lasting at least 6 months when glued with K.
A. The p-value is less than α, and the null hypothesis is rejected. There is convincing evidence to support the claim that the proportion of books lasting at least 6 months when glued with G is different from the proportion of books lasting at least 6 months when glued with K.
B. The p-value is less than α, and the null hypothesis is not rejected. There is not convincing evidence to support the claim that the proportion of books lasting at least 6 months when glued with G is different from the proportion of books lasting at least 6 months when glued with K.
C. The p-value is greater than α, and the null hypothesis is rejected. There is convincing evidence to support the claim that the proportion of books lasting at least 6 months when glued with G is different from the proportion of books lasting at least 6 months when glued with K.
D. The p-value is greater than α, and the null hypothesis is not rejected. There is not convincing evidence to support the claim that the proportion of books lasting at least 6 months when glued with G is different from the proportion of books lasting at least 6 months when glued with K.
The correct decision for the test is B.
What is value?Value is a concept that has been debated for centuries and is often defined as the worth or importance attributed to an object, person, or idea. It can be quantified, such as by a price, or it can be something intangible, such as respect, trust, or loyalty. Value can also be subjective and differ from one person to the next, depending on their individual needs and desires. Ultimately, the true value of something lies within the eye of the beholder.
The p-value is less than α, and the null hypothesis is rejected. There is not convincing evidence to support the claim that the proportion of books lasting at least 6 months when glued with G is different from the proportion of books lasting at least 6 months when glued with K.
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anew home is being furnished with a
couch that costs $687.50. How much will
the couch cost after a 6% sales tax is
applied?
8
$76
The cost of the couch when tax has been deducted would be = $646.25
How to calculate to the cost of couch?The total cost of the couch used to furnish a new home before tax deduction= $687.50
The percentage of tax deduction = 6% of $687.50
That is,
= 6/100 × 687.50
= 4125/100
= $41.25
Therefore, the cost of the couch after tax deductions would be = 687.50- 41.25
=$646.25
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Data indicate that the number of traffic accidents in Berkeley on a rainy day is a Poisson random variable with mean 9, whereas on a dry day it is a Poisson random variable with mean 3. Let X denote the number of traffic accidents tomorrow. If it will rain tomorrow with probability 0.6, find
a)E[X]
b) P(X=0)
c) Var (X)
E(x) for the given data is 6.6 and p(x=0) =0.22 and variance is = 15.26
The Poisson distribution is a discrete probability function that means the variable can only take specific values in a given list of numbers, probably infinite. A Poisson distribution measures how many times an event is likely to occur within an “x” period of time. In other words, we can define it as the probability distribution that results from the Poisson experiment. A Poisson experiment is a statistical experiment that classifies the experiment into two categories, such as success or failure. Poisson distribution is a limiting process of the binomial distribution.
mean = 9 on a rainy day
mean=3 on a dry day.
Let X denote the number of traffic accidents tomorrow. If it will rain tomorrow with a probability of 0.6,
a)
E[x]= E[X|R]+E[X|D}
E[X]=0.6*9-0.4*3
=5.4-12=6.6
B)
X is equal to zero. Why is it called a small way?
P(Y)=e^(-9*0.6+3*0.4).
P(X=0)=0.22
part C.
He had variance affected also missing. So I will calculate that,
V(x)=x2-E(x) =15.26.
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Javier has been saving to purchase a beach home for 20 years. Monthly deposits of $500 are made into an annuity that earns 3.5% annual interest, compounded monthly. According to account documents, after these 20 years, there is a balance of $173,434.63 in the account. How much of this balance did Javier contribute?
Javier contribute $12,000 of his balance in the bank account.
What is Compound interest?Compound interest is the interest which is calculated on both the initial principal and the accumulated interest from previous periods. It can be easily understood as interest on interest.
[tex]A= P(1+\frac{r}{n})} ^{nt}[/tex]
Javier has been saving to purchase a beach home for 20 years.
Monthly deposits of $500 are made into an annuity that earns 3.5% annual interest, compounded monthly.
Javier contribute= monthly deposit* number of months* time period
Javier contribute = 500*12*20
= $12000
Hence, Javier contribute $12,000.
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Answer:
Step-by-step explanation:
Javier contributes $500 each month, for 20 years. To find the amount that was contributed, we multiply those pieces together (12 months in each year).
500⋅12⋅20=$120,000
Using the last of my points please help as fast as possible 6th grade math!!! HELP ASAPPPPP!!!!!! PLEASEEE
A student has a rectangular bedroom. If listed as ordered pairs, the corners of the bedroom are (21, 18), (21, −7), (−12, 18), and (−12, −7). What is the perimeter in feet?
116 feet
58 feet
33 feet
25 feet
The perimeter of the rectangular bedroom is: A. 116 feet.
What is the Perimeter of a Rectangle?Perimeter of a rectangle = 2(length + width)
To find the perimeter of the rectangular bedroom, we need to calculate the sum of the lengths of its four sides.
Let's start by finding the length of the horizontal sides of the rectangle. The two horizontal sides are defined by the points (21, 18) and (21, −7), which are 25 feet apart in the vertical direction (18 − (−7) = 25). Therefore, the length of each horizontal side is 25 feet.
Next, let's find the length of the vertical sides of the rectangle. The two vertical sides are defined by the points (21, 18) and (−12, 18), which are 33 feet apart in the horizontal direction (21 − (−12) = 33). Therefore, the length of each vertical side is 33 feet.
Now we can add up the four side lengths to get the perimeter:
Perimeter = 2(Length of horizontal sides) + 2(Length of vertical sides)
= 2(25 feet) + 2(33 feet)
= 50 feet + 66 feet
Perimeter = 116 feet
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Adjust the number into correct standard form. 59 × 10^-7
Answer:
Given: Find the standard for of 59 × 10^-7 ( 0.0000059 ).
= 5.9 × 10-6.
12.
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Which of the following pairings is INCORRECT?
(ة)
فه
First Amendment-freedom of speech
Second Amendment-right to bear arms
First Amendment-freedom of the press
Fourth Amendment-freedom
of religion
con
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The pairing that is incorrect is D. Fourth Amendment-freedom of religion.
What does the Fourth Amendment do ?The Fourth Amendment to the United States Constitution protects citizens from unreasonable searches and seizures and requires that search warrants be issued only with probable cause and based on specific information. It does not address freedom of religion.
The First Amendment protects a number of individual rights, including freedom of speech, freedom of the press, freedom of religion, and the right to assemble and petition the government.
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select all that apply standard deviations can be compared multiple select question. for data sets with different measurement units. for data sets with the same measurement units but greatly different magnitudes. only for data sets with the same measurement units and similar magnitude. only for data sets with the same measurement units.
The statement of option a "for data sets with different measurement units" and the statement of option b "for data sets with the same measurement units but greatly different magnitudes." is true about comparing standard deviations. So the option a and b is correct.
When comparing standard deviations, it is important to consider the context in which the data was collected. For example, if two datasets have similar means but different standard deviations, the one with the larger standard deviation may indicate more variability or a wider range of values.
On the other hand, if two datasets have different means but similar standard deviations, the one with the larger mean may be more representative of the population as a whole. In either case, it is important to look at the context of the data to make a more informed comparison.
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The complete question is:
Which of the following is true about comparing standard deviations? (Select all that apply)
a. For data sets with different measurement units
b. For data sets with the same measurement units but greatly different magnitudes
c. For data sets with the same measurement units and similar magnitude
d. For data sets with the same measurement units
Nate knew that most mobile phones also included music players. In 2012, the number of mobile phones in Italy was 147.4% of the population. If the number of mobile phones was 88,6000,000 in Italy in 2012, what was the approximate population?
The approximate population in Italy in 2012 was about 60,045,678.74.
What do we mean by approximate?We mean close in value or amount but not precise. an approximate solution. a rough date.
We can begin by establishing a ratio between the number of mobile phones and the population:
code:
147.4% = 1.474 (because 147.4% is the decimal equivalent of 1.474)
1.474 = number of mobile phones / population
We can solve for the population by substituting the given values:
code:
88,600,000 / population = 1.474
88,600,000 / 1.474 = population
The population is 60,045,678.74 people.
As a result, the approximate population of Italy in 2012 was 60,045,678.74.
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The conservation club coordinator is recruiting volunteers to help build a shed for recycling. She knows that finishing the shed will take 120 work hours. She figures out that if she can find one more person to help, the project will take a half hour less per volunteer. How many volunteers have already signed up?
I GIVE BRAINLIEST.In the graph above, determine a system of only three transformations that will map ∆XYZ to the other three triangles.
Step-by-step explanation:
Rotation, reflection, translation
Hope this helps :)
n²-n-56 factoring trinomials
Answer:
(n - 8)(n + 7)
--------------------
Given trinomial:
n² - n - 56Apply Viet's theorem.
The sum of the roots is 1 and the product of the roots is - 56.
This is achieved when the roots are 8 and - 7.
n² - n - 56 = (n - 8)(n - (-7)) = (n - 8)(n + 7)how many
times would you expect to draw an
ace out of 200 draws?
We would expect an ace to be drawn about 32 times out of 200 draws based on Eli's experiment.
What is probability?Probability is a number that expresses the likelihood or chance that a specific event will take place. Both proportions ranging from 0 to 1 and percentages ranging from 0% to 100% can be used to describe probabilities.
Given, A small deck of cards has 4 kings, 3 queens, 2 jacks, and 1 ace.
To determine the expected number of times an ace would be drawn out of 200 draws, we need to use the probability of drawing an ace and multiply it by the total number of draws.
The probability of drawing an ace is the number of aces divided by the total number of cards:
Probability of drawing an ace = (12) / (75)
= 4/25
Therefore, the expected number of times an ace would be drawn out of 200 draws is:
Expected number of aces = Probability of drawing an ace x Total number of draws
= (4/25) x 200 = 32
So we would expect an ace to be drawn about 32 times out of 200 draws based on Eli's experiment.
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This pattern repeats every 5 terms. The pattern is rectangle, pentagon, square, hexagon, pentagon. What is the 19th term of this pattern?
Answers Square
Pentagon
Hexagon
Rectangle
Suppose a certain baseball diamond is a square 80 feet on a side. The pitching Fubber is located 55.5 feet from home plate on a line joining home plate and second base. a) How far is it from the pitching rubber to first base? b) How far is it from the pitching rubber to second base? c) If a pitcher faces home plate, through what angle does he need to turn to face
The distance from the pitching rubber to first base is 98.7ft, B - the distance from the pitching rubber to first base is 96.6ft and C - A pitcher must pivot to face in a 45-degree angle if he is facing home plate.
(a) To find the distance from the pitching rubber to first base, we can use the Pythagorean theorem, since the distance forms the hypotenuse of a right triangle with legs of length 80ft (the length of a side of the square) and 55.5ft (the distance from the pitching rubber to home plate along a diagonal line). Thus, we have:
distance to first base = [tex]\sqrt{ 80^{2} + 55.5^{2}[/tex] = 98.7ft
(b) To find the distance from the pitching rubber to second base, we can use the fact that second base is located at a distance of 80ft from home plate along a line perpendicular to the line connecting the pitching rubber and home plate. Using the Pythagorean theorem, we have:
distance to second base = [tex]\sqrt{55.5^{2} + 80^{2} }[/tex] = 96.6ft
(c) If a pitcher faces home plate, he needs to turn through an angle of 45 degrees to face second base. This is because second base is located at one corner of the square, and the angle formed by the lines connecting the pitching rubber to home plate and second base is a right angle (since the sides of the square are perpendicular).
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The Grand Vizier of the Kingdom of Um is being blackmailed by numerous individuals and having a very difficult time keeping his blackmailers from going public. He has been keeping them at bay with two kinds of payoff: gold bars from the Royal Treasury and Political Favor Through bitter experience, he has learned that each payoff in gold gives him peace for average of about 1 month, while each political favor seems to earn him about a month and half of reprieve To maintain his flawless reputation in the Court, he feels he cannot afford any revelations about his tainted past to come to light within the next year. Thus it is imperative that his blackmailers be kept at bay for 12 months. Furthermore, he would like to keep the number of gold payoffs at no more than one-quarter of the combined number of payoffs because the outward flow of gold bars might arouse suspicion on the part of the Royal Treasurer. The Grand Vizier feels that he can do no more than seven political favors per your without arousing undue suspicion in the Court. The gold payoffs tend to deplete his trave budget. (The treasury has been subsidizing his numerous trips to the Himalayas.) He estimates that each gold bar removed from the treasury will cost him four trips. On the other hand because the administering of political favors tends to cost him valuable travel time, he suspec that each political favor will cost him about two trips. Now, he would obviously like to keep his blackmailers silenced and lose as few trips as possible. What is he to do? How many trips wil he lose in the next year?
To keep his blackmailers at bay for 12 months, the Grand Vizier needs to balance the number of gold payoffs and political favors he gives to them. Let's represent the number of gold payoffs by G and the number of political favors by P.
From the given information, we have:
Each gold payoff gives him an average of 1 month of reprieve.
Each political favor gives him an average of 1.5 months of reprieve.
He cannot afford any revelations about his past to come to light within the next year, which means he needs to keep his blackmailers at bay for 12 months.
He wants to keep the number of gold payoffs at no more than one-quarter of the combined number of payoffs.
He can do no more than seven political favors per year.
Each gold bar removed from the treasury will cost him four trips.
Each political favor will cost him about two trips.
Let's first calculate the maximum number of political favors he can give in a year:
7 political favors per year
Next, let's find the maximum number of payoffs he can give in a year:
G + P = total number of payoffs
G ≤ 0.25(G+P) (to keep the number of gold payoffs at no more than one-quarter of the combined number of payoffs)
Simplifying the second equation, we get:
G ≤ 0.25G + 0.25P
0.75G ≤ 0.25P
3G ≤ P (multiplying both sides by 3)
So the maximum number of payoffs he can give in a year is 7 + G, where G ≤ 3.
Next, we need to find the combination of payoffs that will give him the most reprieve while losing the fewest trips. We can use a table to calculate the reprieve and trip costs for different combinations of payoffs: look at the table
From the table, we see that the best combination is G=3 and P=4, which will give him a total reprieve of 12 months (the required time) while costing him 26 trips (the minimum possible). Therefore, the Grand Vizier will lose 26 trips in the next year.