Answer:
Kevin completed 3 races
Step-by-step explanation:
So to solve this first you would add up all of the miles Kevin ran.
[tex]3.5+4+1.8=9.3[/tex]
Then you would take the total amount he ran and divide it by 3.1 to see how many races he would have completed
[tex]9.3 / 3.1=3[/tex]
The sides of a river are parallel. Elizabeth is located at point E, and Jacoby is located at point J. They know that they are the same distance from the ends of the bridge B1B2. Kevin is located at point K. Which of the following can be used to prove that the two triangles are congruent and that Kevin is standing at the middle of the bridge? Select all that apply.
Answer: ASA, AAS
Step-by-step explanation:
What is the total price of a $5 book with a 10% sales tax?
solve pls brainliest
I believe the answer is 21/32
help, please see picture, and explain: no decimals please,
[tex] - \sqrt{72} = - \sqrt{2 {}^{3} \times 3 {}^{2} } = - 2 \times 3 \sqrt{2} = - 6 \sqrt{2} [/tex]
[tex] - 4 \sqrt{8} = - 4 \sqrt{2 {}^{3} } = - 4 \times 2 \sqrt{2} = - 8 \sqrt{2} [/tex]
[tex] - \sqrt{72} - 4 \sqrt{8} = - 6 \sqrt{2} - 8 \sqrt{2} = - 14 \sqrt{2} [/tex]
What percent of 72 is 9?
18%
114%
1212%
125%
Answer:
125%
Step-by-step explanation:
i have an answer of that
To rewrite y(t) = 2 * sin (4 pi t) + 5 * cos (4 pi t) in the form Asin(wt+phi), you must first find the amplitude. Use c1=Asin(phi) and c2=Acos(phi) along with the Pythagorean identity to solve for A (amplitude.) previous question: By plugging in for c1 and c2, the equation should shift to be: Asin(wt+phi)=Acos(phi)sin(wt)+Asin(phi)cos(wt) Use the identity sin(x+y)=sin(x)cos(y)+cos(x)sin(y)
Answer:
The equation in standard form is [tex]y(t) = 5.390\cdot \sin (4\pi\cdot t +0.379\pi)[/tex].
Step-by-step explanation:
We use the following trigonometric identity:
[tex]\sin (\alpha + \beta) = \sin \alpha\cdot \cos \beta + \cos \alpha \cdot \sin \beta[/tex], [tex]\forall\,\alpha,\beta\in \mathbb{R}[/tex] (Eq. 1)
If we have formula [tex]y(t) = 2\cdot \sin (4\pi\cdot t)+5\cdot \cos (4\pi\cdot t)[/tex], by direct comparison with (Eq. 1):
[tex]A\cdot \cos \phi = 2[/tex] (Eq. 2)
[tex]A\cdot \sin \phi = 5[/tex] (Eq. 3)
Where:
[tex]A[/tex] - Amplitude, dimensionless.
[tex]\phi[/tex] - Phase angle, measured in radians.
By dividing (Eq. 3) by (Eq. 2), we get that:
[tex]\tan\phi = \frac{5}{2}[/tex]
[tex]\phi = \tan^{-1}\left(\frac{5}{2} \right)[/tex]
[tex]\phi = 0.379\pi\,rad[/tex]
From (Eq. 2) we find the amplitude:
[tex]A = \frac{2}{\cos \phi}[/tex]
[tex]A = \frac{2}{\cos 0.379\pi}[/tex]
[tex]A = 5.390[/tex]
Therefore, we find that equation in standard form is:
[tex]y(t) = A\cdot \sin (\omega\cdot t +\phi)[/tex] (Eq. 4)
Where [tex]\omega[/tex] is the angular frequency, measured in radians per second.
([tex]A = 5.390[/tex], [tex]\omega = 4\pi\,\frac{rad}{s}[/tex], [tex]\phi = 0.379\pi\,rad[/tex])
[tex]y(t) = 5.390\cdot \sin (4\pi\cdot t +0.379\pi)[/tex]
Rational Expressions Multiplying I need to know how to do it
Answer:
(x -3)/4
Step-by-step explanation:
You multiply rational expressions the same way you multiply fractions. The numerator is the product of the numerators; the denominator is the product of the denominators. Same factors in numerator and denominator cancel to reduce the product to lowest terms.
[tex]\dfrac{3(x-3)}{3}\cdot\dfrac{x-7}{4(x-7}=\dfrac{x-3}{1}\cdot\dfrac{1}{4}=\boxed{\dfrac{x-3}{4}}[/tex]
We cancelled the factors of 3 from the first expression, and the factors of (x-7) from the second expression. The final product is the product of the reduced rational expressions.
Find the area of the polygon
pls help
area: 36 units²
area of parallelogram = base * height[tex]\hookrightarrow \sf 9 \ * \ 4[/tex]
[tex]\hookrightarrow \sf 36 \ units^2[/tex]
Area:-
Base×Height9(4)36units^2PLEASE HELP!!! (algebra 2)
The difference of two number is 2 and product of them is 224. Find the Numbers if both of them are negative.
Answer:
The numbers are 14 and 16.
Step-by-step explanation:
Equation:
x (x - 2) = 224
Solution:
x (x - 2) = 224
x² - 2x = 224
x² - 2x - 224 = 0
Now, we ended up with a trinomial. To find the two numbers, we need to factor it.
Factoring Trinomials
Trinomial is a polynomial with three terms which are connected by plus or minus notations. It is expressed as a² + b + c.
To factor, we need to follow these steps:
1. Find the factors of "ac" that when combined it will result to "b".
2. When "c" is positive, the sign in each binomial is the same as "b".
3. When "c" is negative, the sign in each binomial is different.
4. Write as the product of two binomials ( )( ).
Let us continue.
x² - 2x - 224
(x - 16)(x + 14)
Therefore, x = 16 and x = -14.
Since we are looking for a positive value, we are going to use the positive value of x and that is 16.
Larger number is 16.
x - 2 = 16 - 2 = 14
Smaller number is 14.
Final Answer:
The two numbers are 14 and 16.
Checking:
x (x - 2) = 224
16 (16 - 2) = 224
16 (14) = 224
224 = 224 ✔
4. The value of y is directly proportional to the value of x. If y = 45 when x = 180, what is the value of y when x = 80?
Given:
The value of y is directly proportional to the value of x.
y = 45 when x = 180.
To find:
The value of y when x = 80.
Solution:
Since the value of y is directly proportional to the value of x, therefore
[tex]y\propto x[/tex]
[tex]y=kx[/tex] ...(i)
where, k is constant of proportionality.
Putting y=45 and x=180, we get
[tex](45)=k(180)[/tex]
[tex]\dfrac{45}{180}=k[/tex]
[tex]k=\dfrac{1}{4}[/tex]
Substituting [tex]k=\dfrac{1}{4}[/tex] in (i), we get
[tex]y=\dfrac{1}{4}x[/tex]
Put x=80 in this equation.
[tex]y=\dfrac{1}{4}(80)[/tex]
[tex]y=20[/tex]
Therefore, the value of y is 20 when x=80.
Can someone help me on this question? I’ll give brainliest if you answer soon!!!
Answer:
c to a a to f
Step-by-step explanation:
I’m out of school right now and i don’t know what the answer is this is the question. What’s the mean for 17 9 11 and 7?
Answer:
11
Step-by-step explanation:
Given the following question:
[tex]17,9,11,7[/tex]
To find the mean of any given data set we need to add all the values together and then divide that answer by the total amount of values in the data set.
[tex]17,9,11,7[/tex]
[tex]17+9+11+7[/tex]
[tex]9+11=20[/tex]
[tex]20+17=37[/tex]
[tex]37+7=44[/tex]
[tex]=44[/tex]
Now divide the answer by the total amount of values:
[tex]44[/tex]
[tex]a=4[/tex]
[tex]44\div4=11[/tex]
[tex]m=11[/tex]
Which means the mean of this given data set is "11."
Hope this helps.
Answer:
Mean = 11Step-by-step explanation:
The mean is the average number of the data.
Given data: 17, 9, 11, and 7To calculate the mean of the data, divide the sum of the data by the total numbers in the data. The quotient will be the average of the data.
[tex]\dfrac{17 + 9 + 11 + 7}{\text{Total digits in the data}}[/tex]
We can see 4 digits included in the data. Thus, the sum of the data will be divided by 4.
[tex]\dfrac{17 + 9 + 11 + 7}{4}[/tex]
Now, let's solve for the mean.
[tex]\dfrac{17 + 20 + 7}{4}[/tex]
[tex]\dfrac{44}{4} = 11[/tex]
Thus, 11 is the mean.
I need help with this question, it is for geometry
Answer:
x=3...
Step-by-step explanation:
Given:T is the midpoint of SU.....
To find: x
Proof: ST=TU ( T is the midpoint of SU)
8x+11=12x-1
11+1=12x-8x
12=4x
12/4=x
x=3.
Write the equation of the line in fully simplified slope-intercept form.
Answer:
y = mx + b is slope interform but you didn't supply a problem to put into it
ILL GIVE BRAINIEST TO WHOEVER IS CORRECT!! PLEASE HELP ASAP!! WITH WORK PLEASE!!!
Answer:
d= approx 10.2956
Step-by-step explanation:
d=sqrt of (7+2)^2 + (8-3)^2
d=sqrt of [81+25]
d=sqrt of 106
d = approx. 10.2956
PLEASE PLEASE HELP
Given <triangle> ABC is congruent to <triangle> XYZ, and m< A is 50°, m<Z is 40°, what is the m<B
90°
80°
70°
60°
Answer:
A triangle measures 180° , so you do 50°+40° =90° then you do 180°- 90° = 90° , Therefore your answer is A. Hope this helps bye:)
Answer:
90
180-40-50=90
the triangle have 180 angle so 180 minus with 40 and 50 and you will get the m<B angle
For rhis problem you will have to simplify correctly .
Answer:
Step-by-step explanation:
Answer:
The mistake was -9, the answer is 1x -6
Step-by-step explanation:
3 (x - 6) + (4x + 12) - 6x =
3x - 18 + 4x + 12 - 6x = (use distributive property for this step)
3x + 4x - 6x - 18 + 12 = (rearrange so like terms are easy to find)
1x - 6 (use addition and subtraction to get the final answer)
I hope this helps you :)
Write an expression the represents the statement "Add 9 and 3, then multiply by 6"
Asap answer please
Answer:
(9+3)*6
Step-by-step explanation:
Remember the order of operation: (PEMDAS)
Problem: (9+3)*6
Step 1 add 9+3 =12
Step 2 multiply 12*6
Step 3 your answer to solving the problem 72
A banker earns a $75,000 annual salary, a 2.35% commission on any approved loans for the bank's business customers, and a fee of $3.75 for each application processed. If the banker has a total of $2.8 million in approved business loans and processes 2,750 applications this year, what are the banker's earnings rounded to the nearest dollar?
Answer:
$15,1113Step-by-step explanation:
Given that the banker base annual salary $75,000
1. a 2.35% commission on $2.8 million is
=(2.35/100)*2,800,000
=0.0235*2,800,000
=$65800
2. a fee of $3.75 for each 2,750 applications processed
=3.75*2,750
=$10312.5
the banker's earning is $75,000+$65800+$10312.5
=$151112.5
to the nearest dollar
=$15,1113
Please help I need the answer ASAP please i will give brainliest
Answer:
the answer is the first one
Answer:
A
Step-by-step explanation:
In the function f(3) = 9 the input is
Answer:
Your answer is 3
Step-by-step explanation:
3 x 3 = 9
Answer:
The answer is 3 like so take 9÷3=3 or 3x3=9.
PLZ HELP!!!
A bag has 10 marbles-3 red, t blue, and 2 violet. One marble is drawn and then replaced, and this action is repeated 10 times. The results are recorded in the table.
Which of the given statements is true?
A.) The experimental probability of drawing blue is 1/2
B.) The experimental probability of drawing red is 1
C.) The experimental probability of drawing red is 1/10
D.) The experimental probability of drawing violet is 0
The experimental probability of drawing blue is 1/2. Then, option A is correct.
What is probability?Probability is defined as the ratio of the number of favourable outcomes to the total number of outcomes in other words the probability is the number that shows the happening of the event.
Probability = Number of favourable outcomes / Number of sample
It is given that a bag has 10 marbles-3 red, t blue, and 2 violets. The blue marbles will be 5. One marble is drawn and then replaced, and this action is repeated 10 times.
The probability is calculated as:-
P = 5 / 10 = 1 / 2
To know more about probability follow
https://brainly.com/question/24756209
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Which of the following numbers is between 0.62 and 1.05?
01.01
O 0.065
O 1.1
0.6
Answer:
a
Step-by-step explanation:
b is in the thousandths place, c is over 1.05, and d is no were near in between them
Answer:
1.01
Step-by-step explanation:
0.62 is equivalent to 62/100
0.6 is equal to 60/100, so 0.6 is not the answer.
0.065 is equal to 65/1000
0.6 is equal to 60/100, or 600/1000, so 0.065 is not the answer.
1.1 is equal to 1 and 10/100, while 1.05 is equal to 1 and 5/100, so 1.1 is not the answer.
Therefore, using the process of elimination, 1.01 is the answer.
A scientist who studies sleep has developed a new technique to help people sleep each night. He
is conducting a study of 100 people and wants to determine if there is a significant difference in
people's amount of sleep before using the technique compared to after using the technique.
Which of the following describes the scientist's null and alternative hypotheses?
O null hypothesis: Hp = 0; alternative hypothesis: 4p=0
Onull hypothesis: 4y= 0; alternative hypothesis: 4p = 0
O null hypothesis: 44- = 0; alternative hypothesis: 4-430
O null hypothesis: 4-4370; alternative hypothesis: 4-12 = 0
Considering the situation described, the scientist's null and alternative hypothesis are described by:
Null hypothesis [tex]H_0: \mu = 0[/tex]; Alternative hypothesis [tex]H_1: \mu \neq 0[/tex].
What are the hypothesis tested?At the null hypothesis, it is tested if there is no difference, that is, the difference of the means represented by [tex]\mu[/tex] is of 0, hence:
[tex]H_0: \mu = 0[/tex]
At the alternative hypothesis, it is tested if there is a difference, hence:
[tex]H_1: \mu \neq 0[/tex]
More can be learned about an hypothesis test at https://brainly.com/question/26454209
Saira is using the formula for the area of a circle to determine the value of LaTeX: \prod∏. She is using the expression LaTeX: Ar^2A r 2where A=50.265 and r=4. Use a calculator to evaluate Saira's expression to find her approximation of the value of LaTeX: \prod∏to the nearest thousandth.
Answer:
3.164
Step-by-step explanation:
Given the area if the circle used by Sarah expressed as
A = πr²
Given
A = 50.265
r = 4
To get π, we will substitute the given values into the formula as shown
50.625 = π{4)²
50.625 = 16π
π = 50.625/16
π = 3.164
Hence her approximate value to nearest thousandth is 3.164
The area of the regular octagon is 10.15 cm2. a regular octagon has sides with lengths of 1.45 centimeters. what is the measure of the apothem, rounded to the nearest hundredth of a centimeter? 1.27 cm 1.75 cm 2.33 cm 2.54 cm
The length of the apothem of the regular octagon will be equal to 1.75 cm
What is a regular octagon?The regular octagon is the shape made up of the 8 sides or also the combination of the 8 isosceles triangles connected together side by side.
Here it is given:
Area of the Octagon = [tex]10.15\ cm^2[/tex]
The side of the octagon=1.45 cm
As we know that the octagon consists of the 8 isosceles triangles so the area of one triangle will be
[tex]= \dfrac{10.15}{8} =1.27\ cm^2[/tex]
Now the area of the isosceles triangle is given as:
[tex]A=\dfrac{1}{2} \times h\times b[/tex]
[tex]1.27=\dfrac{1}{2} \times h\times 1.45[/tex]
[tex]h=1.75\ cm[/tex]
Thus the length of the apothem of the regular octagon will be equal to 1.75 cm
To know more about octagon follow
https://brainly.com/question/1592456
Answer:
the answer is b
Step-by-step explanation:
Anyone know how to do this?
9514 1404 393
Answer:
∠2 = 45°
Step-by-step explanation:
Angles 1 and 2 are same-side interior angles where the transversal crosses parallel lines. That means they are supplementary angles.
∠1 +∠2 = 180° . . . . . supplementary angles total 180°
135° +∠2 = 180° . . . . substitute the given value
∠2 = 180° -135° . . . . subtract 135°
∠2 = 45°
A rectangular bathroom mirror is 2 feet tall and 10 feet wide. What is its perimeter?
The perimeter is the all the side's lengths added up together
-- so: Perimeter = 2 + 10 + 2 + 10 = 24 feet
Hope that heped!
PLEASE ANSWER! WILL MARK BRAINLIEST!!
A student is running a 10-kilometer race. He runs 1 kilometer every 4 minutes. Select the function that describes his distance from the finish line after x minutes.
Answer:
|(x/4) - 10| or (x/4) - 10
hope this helps!!!
Answer:
Hope this help you!!
Have a good day
Help help help help help help please
Answer:
1. 21z² - 35nz + 56n²
2. 18y + 8
3. 12z³ - 24z² + 28z
4. 56c³ + 14c²g + 21cg²
5. 21p⁵ + 42p⁴- 63p³
6. 35g⁴ + 14g³ + 21g²
7. 54c² - 27cz
8. 24n² + 15n + 18
9. 40k⁴ + 16k³p + 24k²p²
10. 45z⁵ - 36z⁴h - 63z³h²
Plz mark brainliest :)