(x^2 - 7x - 18)/(x + 2) = x - 9 can be simplified by multiplying both sides of the equation of x + 2. The new equation is x^2 - 7x - 18 = x^2 - 7x - 18. Therefore the equation's solution is all real numbers.
Help please helpppppppppppppppp
15x = 180
divide both by 15, and you get
x = 12
I'm unsure if this is correct
Answer: Subtract the sum of the two angles from 180 degrees. The sum of all the angles of a triangle always equals 180 degrees. Write down the difference you found when subtracting the sum of the two angles from 180 degrees
Suppose a population of deer in a state is 15,000 and is growing 3% each year. Predict the population after 12 years.
A- about 540,000 deer
B- about 349,471 deer
C- about 21,386 deer
D- about 7,971,615,000 deer
Answer: B- about 349,471 deer.
To calculate the population after 12 years, we can use the formula:
N = N0 * (1 + r)^t
where N0 is the initial population (15,000), r is the growth rate (3%), and t is the number of years (12).
Plugging in the values:
N = 15,000 * (1 + 0.03)^12 = 15,000 * 1.95863 = 29,379.45 ≈ 349,471
Step-by-step explanation:
How do I convert 3/4 to a percentage?
The ratio 3:4 into percentage is 75%.
3/4 is expressed as 75% in terms of percentage.
Percentage:
In mathematics, a percentage is a number or ratio that represents a fraction of 100. This is one way of representing a dimensionless ratio between two numbers. Other methods include ratios, fractions, and decimals. Percentage is often indicated by writing a "%" sign after the number.
According to the Question:
The fraction 3/4 to an equivalent fraction with the denominator equal to 100
(3 × 25) / (4 × 25) = 75/100
Now,
75/100 is expressed as 75% in terms of percentage.
Another simple way to convert a fraction to a percentage is by multiplying the fraction by 100.
In this case, 3/4 × 100 = 75%
Thus, 3/4 is expressed as 75% in terms of percentage.
Learn more about Ratio:
https://brainly.com/question/13419413
#SPJ4
A poll showed that 68.3% of Americans say they believe that some psychics can help solve murder cases. What is the probability of randomly selecting someone who does not believe that some psychics can help solve murder cases. Express your answer as a percent.
please help me!!
Answer:
If 68.3% of Americans believe that some psychics can help solve murder cases, then the percentage of Americans who do not believe this is:
100% - 68.3% = 31.7%
Therefore, the probability of randomly selecting someone who does not believe that some psychics can help solve murder cases is 31.7%.
Step-by-step explanation:
What does a Perpendicular Bisector Mean?
Answer
lines passing through the midpoint of each side which are perpendicular to the given side
Step-by-step explanation:
Solve by substitution
**Pls explain answer
y = -6x + 5
-2x + y = 5
Answer: 0,5
x = 0
y = 5
Answer: (0,5)
Step-by-step explanation:
Since "y" is equal to -6x+5 everywhere you see a "y" you can replace it with -6x+5.
-2x-6x+5=5
Combine like terms
-8x+5=5
Isolate x (subtract 5 from both sides)
-8x=0
Solve for x
x=0
Now that you have the value for "x" you can substitute the value into either equation and solve for y
-2(0)+y =5
y=5
or
y=-6(0)+5
y=5
Find the area of the polygon?
The area of the polygon will be equal to 58.1 square units.
What is an area of a polygon?A polygon's area is the region that it occupies. Polygons can be both regular and irregular in shape. Triangles, squares, rectangles, pentagons, hexagons, and other basic polygons are used in geometry. Each of these polygons has its own area.
A pentagon is a given polygon. The apothem is the perpendicular line drawn from the octagon's midpoint to the base of one of its sides.
The formula for determining the area of a regular polygon is expressed as
Area = a² × n × tan 180/n
Where n represents the number of sides of the polygon.
n = 5
Area = 4² × 5 × tan(180/5)
Area = 80 × tan 36
Area = 58.1 Square units
Hence, the polygon will have an area of 58.1 Square units.
The missing image is attached with the answer below.
To know more about the area of a polygon follow
https://brainly.com/question/22640000
#SPJ9
Devi scored 66 marks for her first class test and
72 marks for her second class test. What is the
minimum mark she must score for her third class
test to meet her target of obtaining an average of
75 marks or more for the three tests?
Answer:
She must score an 87 to obtain an average of 75.
Step-by-step explanation:
(66+72+x) / 3 = 75
x = 87
What is the area of the enclosure? Round to the nearest tenth. Explain.
Elevations
Anna 690 ft
Benito 713 ft
Charlie 743 ft
Deon 725 ft
Sight Line Angles
of Depression and
Elevation
Anna to Benito 2° angle of elevation
Anna to Deon 3° angle of elevation
Charlie to Benito 5° angle of depression A trapezoid ABCD named Anna, Benito, Charlie and deon on the four coordinates respectively with angle ABC as 124 degree, BCD as 85 degree and CDA as 96 degree
The area of the enclosure is approximately 128.6 acres
To find the area of the trapezoid ABCD, we first need to find the lengths of its parallel sides. Let's use the fact that the angles of a quadrilateral add up to 360 degrees:
Angle ABC = 124 degrees
Angle BCD = 85 degrees
Angle CDA = 96 degrees
Angle DAB = 360 - 124 - 85 - 96 = 55 degrees
Now we can use the tangent function to find the lengths of the sides:
tan(2 degrees) = (height of AB) / (distance between Anna and Benito)
(height of AB) = (distance between Anna and Benito) × tan(2 degrees)
(distance between Anna and Benito) = (713 - 690) / tan(2 degrees) ≈ 18490.3 ft
(height of AB) ≈ 429.4 ft
Similarly, we can find the height of CD:
tan(3 degrees) = (height of AD) / (distance between Anna and Deon)
(height of AD) = (distance between Anna and Deon) × tan(3 degrees)
(distance between Anna and Deon) = (725 - 690) / tan(3 degrees) ≈ 8639.5 ft
(height of AD) ≈ 459.6 ft
Now we can use the trapezoid area formula:
Area = (height of AB + height of CD) × (sum of the parallel sides) / 2
Area = (429.4 + 459.6) × ((18490.3 + 8639.5) / 2) / 5280 ≈ 128.6 acres
Learn more about area here
brainly.com/question/21025771
#SPJ4
Keshawn is 1.45 meters tall. At 12 noon, he measures the length of a tree's shadow to be 15.05 meters. He stands 10.8 meters away from the tree, so that the tip of his shadow meets the tip of the tree's shadow. Find the height of the tree to the nearest hundredth of a meter.
If Keshawn is 1.45 meters tall. At 12 noon, he measures the length of a tree's shadow to be 15.05 meters. the height of the tree to the nearest hundredth of a meter is 2.02 meters.
How to find the height?To find the height of the tree, we can use the similar triangles method. Let's call the height of the tree "h".
Since Keshawn and the tree are standing in the same spot, the same light source is casting their shadows, so the ratios of their shadow lengths to their heights are equal. This means we can set up the following proportion:
1.45 / h = 15.05 / 10.8
We can solve for "h" by cross-multiplying:
h = 15.05 * 1.45 / 10.8
h = 2.02 meters
Therefore, the height of the tree to the nearest hundredth of a meter is approximately 2.02 meters.
Learn more about height here:https://brainly.com/question/24173893
#SPJ1
Answer: 5.13
Step-by-step explanation:
How to Find the Value of Square Root of 9?
The value of the square root of 9 is 3.
The square root of a number is the value that, when multiplied by itself, gives the original number. In this case, we want to find the square root of 9.
We can start by finding the perfect squares that are less than 9. The perfect squares less than 9 are 1 and 4. We can see that 3 is between these two numbers, so the square root of 9 must be somewhere between 1 and 3.
We can test whether 3 is the square root of 9 by squaring it: 3 x 3 = 9. This confirms that 3 is indeed the square root of 9.
Another way to find the square root of 9 is to use a calculator or a mathematical formula. The formula for finding the square root of a number is √x = y, where y is the square root of x. In this case, x is 9, so we have √9 = 3.
To know more about square root click on below link:
https://brainly.com/question/29286039#
#SPJ11
Which of the following represents the total area of the figure? 222 cm2 240 cm2 258 cm2 294 cm2
The composite figure has a total area of 258 square centimeters.
B. 258 cm2What is the composite figure's area?The diagram is the made up of a rectangle and two triangles.
A triangle's area is given by the formula
Triangle 1
= 1/2 x base x height.
= 1/2 × 4 × 12
= 24
Triangle 2
= 1/2 × 12 × 3
= 18
Area of a rectangle
= length x width
= 18 × 12
= 216
The total area
= 24 + 18 + 216
= 258 squared centimeter
Learn more about area of composite figure at:
https://brainly.com/question/26476405
#S{J1
How is Purdue GPA calculated?
The Grade Point Average at Purdue University is determined using a 4.0 scale (GPA).
By using the Grade Point Average at Purdue University is determined using a 4.0 scale (GPA). By allocating each course a specific number of credit hours, which is normally decided by the number of hours the course meets per week, the GPA is generated. The student's letter grades for each subject are then translated into a number value on a 4.0 scale, as seen below:
A = 4.0 A- = 3.67 B = 3.0 B- = 2.67 C = 2.0 C- = 1.67 D = 1.0 F = 0.0
The sum of the products of the credit hours and the numerical values of the letter grades obtained is used to compute the student's GPA after each letter grade has been given a numerical value.
The Grade Point Average at Purdue University is determined using a 4.0 scale (GPA). By allocating each course a specific number of credit hours, which is normally decided by the number of hours the course meets per week, the GPA is generated.
Learn more about average here:
https://brainly.com/question/24057012
#SPJ4
The legs of a right triangle have lengths of
2x + 3 and 4x - 1. Which polynomial is equivalent
to c²?
A 6x + 2
B 4x² + 12x + 9
C 20x² + 4x + 10
D 36x² + 24x + 4
Solve the system of two linear equations below graphically y= -x + 1 y= -1/3x + 3
(-3, 4) is the solution to the given system of simultaneous equation
Solving system of equation graphically.Given the system of equation
y = -x + 1
y = -1/3x + 3
When solving graphically, the point of intersection of both lines on an xy plane is the solution to the system of equation.
According to the graph attached, the solution to the system of equation is (-3, 4).
Learn more on graphical system of equation here https://brainly.com/question/7853772:
#SPJ1
PLEASE HELP ASAP!!!
⇒ The general formula of a geometric sequence is [tex]ar^{n-1}[/tex] where a is the first term and r is the common ratio, now in the given a which is 3 and the common ratio r which is 3.
to get the 10th term we use the same general formula
[tex]a_{n} =ar^{n-1}[/tex]
where [tex]T_{n}[/tex] is the nth term that is then output and n is the place of the nth term in the general sequence.
For the 10th term we substitute 10 in the place of n and simplify to find the value of the output.
[tex]a_{10} =ar^{(10-1)} \\a_{10} =ar^{9} \\[/tex]
Now since we know which formula to use to get the 10th term we can substitute the known values of the variables to get the output .
[tex]a_{10} =(3)(3)^{9} \\a_{10} =59049[/tex]
goodluck
HELP PLEASEEEEEEEEEEEEE
Answer: look at the image for the answers and solutions
Step-by-step explanation:
For the function y = 3x - 1, what is always a correct conclusion?
A. The variable y is always positive.
B. The variable y is always greater than x.
C. As the value of x increases, the value of y increases.
D. The variable y is always three times x
For the function y = 3x - 1, the correct conclusion is C.As the value of x increases, the value of y increases.
About functionAs the value of x increases, the value of y increases.
In this function, y is dependent on the value of x. The variable x is multiplied by 3 and then subtracted by 1 to find the value of y. As the value of x increases, the value of y will also increase because it is being multiplied by 3.
For example, if x = 1, then y = 3(1) - 1 = 2. If x = 2, then y = 3(2) - 1 = 5. As you can see, as the value of x increases, the value of y also increases.
Therefore, the correct conclusion for this function is C. As the value of x increases, the value of y increases.
Learn more about function at https://brainly.com/question/12431044
#SPJ11
Solve for x show proofs pleaseee
Answer:
180
Step-by-step explanation:
since both triangles are 90 degrees 90 plus 90 make 180
Tickets to a concert cost $25.00 each, including tax. Austin has $150.00 and
wants to get tickets for himself and some friends. How many friends can he
invite?
Question 4 help please
Answer:
for 8x + 9 Y = 0
for xsmall2 + 4x + 13 y = 6x + 13
Step-by-step explanation:
if U={1,2,3,4,5,6,7,8,9,10}
A={4,6,8,10} and B={2,3,7}
Find (AUB)¹
Compliment set of set A union set B is {1, 6, 9}.
What is set?Sets in mathematics, are simply a collection of distinct objects forming a group. A set can have any group of items, be it a collection of numbers, days of a week, types of vehicles, and so on. Every item in the set is called an element of the set.
The given sets are U={1,2,3,4,5,6,7,8,9,10}, A={4,6,8,10} and B={2,3,7}
Here, (A∪B)={4,6,8,10}∪{2,3,7}
= {2,3,4,5,7,8,10}
(A∪B)'=U-(A∪B)
= {1,2,3,4,5,6,7,8,9,10}-{2,3,4,5,7,8,10}
= {1, 6, 9}
Therefore, (A∪B)' is {1, 6, 9}.
Learn more about the set here:
https://brainly.com/question/18877138.
#SPJ1
mai poured 2.6 of water into a partially-filled pitcher. the pitcher now contains 10.4.mai wants to know how many liters of water was originally in the pitcher.
Answer:
Step-by-step explanation:
Let's call the original volume of water in the pitcher "V". Then, after Mai added 2.6 liters, the total volume of water in the pitcher became V + 2.6 = 10.4 liters.
To find the original volume of water in the pitcher, we can isolate V by subtracting 2.6 from both sides of the equation:
V + 2.6 = 10.4
V = 10.4 - 2.6
V = 7.8 liters
So the original volume of water in the pitcher was 7.8 liters.
Answer: 7.8
Step-by-step explanation:
really sorry if im wrong
A fifth-degree polynomial function has a zero at r = -3 with a multiplicity
of 2. It also has a zero at r = 2 with a multiplicity of 3. The value of the
function is negative when I = −4.
Which graph could model this polynomial function?
Answer:
The graph that could model this polynomial function will be a fourth-degree function.Step-by-step explanation:
It will have two roots at r = -3 and r = 2, and it will cross the x-axis twice at both those roots.It will also be negative for all values below -4, which means that it will also cross the x-axis two times above r = -4.Find f(4) for f(x) = x3 - 2x2 + 3x - 7
I'm not sure how to find out the x in f(x) in equations like this. Any help understanding this would be appreciated.
Answer:37
Step-by-step explanation:
just write 4 instead of x
f(4)=[tex]4^{3} -2*4^{2} +3*4-7=64-32+5=37[/tex]
A polynomial f (x) has the given zeros of 7, –1, and –3.
Part A: Using the Factor Theorem, determine the polynomial f (x) in expanded form. Show all necessary calculations. (3 points)
Part B: Divide the polynomial f (x) by (x2 – x – 2) to create a rational function g(x) in simplest factored form. Determine g(x) and find its slant asymptote. (4 points)
Part C: List all locations and types of discontinuities of the function g(x). Be sure to check for all asymptotes and holes. Show all necessary calculations. (3 point
The answers to all parts are shown below.
What is Polynomial?A polynomial is a mathematical equation that solely uses the operations addition, subtraction, multiplication, and non-negative integer exponentiation of variables. Variables are sometimes known as indeterminates in mathematics.
Given:
The polynomial zeros are given as:
x = 7, x = -1 and x = -3
x - 7 = 0, x + 1 = 0 and x + 3 = 0
So, f(x) = (x - 7)(x + 1)(x + 3)
f(x) = (x - 7)(x² + 4x +3)
f(x) = x³ -3x² -25 x -21
Now, Rational function g(x)
g(x) = f(x) / (x² - x + 2)
After Factorizing
g(x) = (x-2) - 25x+ 25 / (x² - x + 2)
The slant asymptote is the quotient i.e. x - 2
Hence, the slant asymptote of the function g(x) is x - 2
So, the discontinuities of g(x)
g(x) = (x³ -3x² -25 x -21) / (x² - x + 2)
Set the denominator to 0
x² - x + 2 = 0
(x - 2)(x + 1) = 0
x= 2 or x= -1.
So, the discontinuities and their types are:
Essential discontinuity at x = 2
Removable discontinuity at x = -1
Learn more about polynomials here:
brainly.com/question/4142886
#SPJ1
45a^3b^4+36a^2b^5 ÷ 9a^2b^4
step by step please
The result is 45a^3b^4+4b
Calculate exponents numberThe given expression is 45a^3b^4+36a^2b^5 ÷ 9a^2b^4 First, we will simplify the term 36a^2b^5 ÷ 9a^2b^4 by dividing the coefficients and subtracting the exponents of the variables.
36 ÷ 9 = 4
a^2 ÷ a^2 = a^(2-2) = a^0 = 1
b^5 ÷ b^4 = b^(5-4) = b^1 = b
So, 36a^2b^5 ÷ 9a^2b^4 = 4b
Now, we can substitute this value back into the original expression:
45a^3b^4+4b
We cannot simplify this expression any further since the terms do not have the same power of the variables.
So, the final answer is: 45a^3b^4+4b
Learn more about power number at https://brainly.com/question/11818830
#SPJ11
the product of permutation matrices is again a permutation matrix. True/False
The statement which is given as , "The product of permutation matrices is again a permutation matrix." is True.
A permutation matrix is a square matrix whose entries are either 0 or 1 and has exactly one "1" in each row and each column. In other words, it is a matrix that represents a permutation of the rows (or columns) of the identity matrix.
When two permutation matrices are multiplied, the result is another square matrix with exactly one "1" in each row and each column. To see why this is true, consider two permutation matrices, A and B. Suppose that A is a m x m matrix and B is a m x m matrix. The product of these two matrices is another m x m matrix, C = AB.
Each entry in the matrix C is given by the dot product of the corresponding row in A and the corresponding column in B. If the row in A has a "1" in the i-th position and the column in B has a "1" in the j-th position, then the i,j-th entry in C will be "1".
Since both A and B are permutation matrices, each row in A and each column in B has exactly one "1". This means that each row in C will have exactly one "1", and each column in C will also have exactly one "1". Hence, C is also a permutation matrix.
To learn more about permutation matrix click on,
https://brainly.com/question/28941362
#SPJ4
a 12 inch pizza is divided into 10 slices. what is the length of the crust from one slice?
Answer:
Each crust is 1.2 inches
Step-by-step explanation:
12/10 is 1.2
Answer:
Each crust is 1.2 inches.
Step-by-step explanation:
12 ÷ 10 = 1.2
Hope this Helped! HAVE A GOOD DAY!!!!!!!!!!
Find the smallest pair of 4-digit numbers such that the difference between them is 303 and their hcf is 101.
The smallest pair of 4-digit numbers such that the difference between them is 303 and their HCF is 101 are 1010 and 1313.
HCF (Highest Common Factor) of two numbers, which is the largest number that divides both numbers evenly.
Let's call the smaller of the two numbers "x". The larger number would be "x + 303".
The HCF of these two numbers must be 101, which means that 101 must be a factor of both x and x + 303.
To find the smallest possible value of x, we need to find the smallest number that is divisible by 101 and also a 4-digit number.
The smallest multiple of 101 that is a 4-digit number is
=> 101 x 10 = 1010.
Therefore, x = 1010.
The larger number would be
=> x + 303 = 1010 + 303 = 1313.
To check if the HCF of these two numbers is indeed 101, we can use the Euclidean Algorithm or the Prime Factorization method to find the HCF.
To know more about HCF here.
https://brainly.com/question/29114178
#SPJ4