If the coefficient of determination for a data set containing 9 points is 1, how
many of the data points must lie on the regression line for the data set?
O A. 9
OB. 8
O C. 6
O D. 7

Answers

Answer 1

Answer: A

Step-by-step explanation:

The coefficient of determination is a number between 0 and 1 used to measure the level of precision with which the regression model created fits the data. A measure of means that the model explains the entire variation between the two variables without error.

Therefore, in this case, if  means that the 9 points are on the line

Answer 2

Answer:

Therefore, in this case, it means that the 9 points are on the line

Step-by-step explanation:


Related Questions

Use the law of sines to find side b.

Answers

Answer:

83.3

Step-by-step explanation:

Can someone please help, ty!!
(Will mark brainliest)

Answers

Answer:

Arcadia

Step-by-step explanation:

the line in the box is the median and Arcadia is bigger than Millersburg

Find the value of y in the given square. Only write the number value of y. *
1 point

Answers

Answer: y would =4 because the other answers if you plug in 9 with the X you will get 13 and when you plug 4 where the Y is you get 13

Step-by-step explanation:

Ariel bought a 6-cup bag of dough for $6.34. She used 1.45 cups to make rolls and 3.45 cups to make bread. How much dough is left? PLEASE HEELP

Answers

Answer:

1.1 cups. Hope this helps.

Step-by-step explanation:

Help me with this question pleaseee

Answers

Answer:

< 1 = 26 degrees

< 2 = 154 degrees

< 3 = 26 degrees

< 4 = 26 degrees

< 5 = 154 degrees

< 6 = 154 degrees

< 7 = 26 degrees

Step-by-step explanation:

Because of angles opposed by the vertex, <2 = 154 degrees

Because of corresponding angles between parallel lines, <5 = <6 = <2 = 154 degrees.

Because of supplementary angles,

< 1 = < 3 = < 4 = < 7 = 180 - 154 = 26 degrees

Rachel runs 3.2 miles each weekday and 1.5 miles each day of the weekend. How many miles will she have run in 6 weeks?

Answers

There’s 5 weekdays in a week so 3.2 x 5 = 16 so 16 is how many miles she runs for every weekday for one week since it’s asking 6 weeks multiply 6 x 16 = 96 so 96 is how many miles she ran in 6 weeks for every weekday now you need the weekends there’s 2 days on the weekend so 1.5 x 2 = 3 so 3 is how many miles she runs on the weekend for one week now multiply 3 x 6 = 18 so 18 is how many miles she runs every weekend for 6 weeks now you add it all together so 96 + 18 = 114 so Rachel runs 114 miles in a span of six weeks

helppp please I will give brainliest

write an equation ​

Answers

Answer:

Step-by-step explanation:

c=100g+50

then plug in g to get c values

You are most likely to encounter an irrational number when you are

Answers

Answer:

dealing with circles (using pi for circumference, area, arc angle, etc)

Answer:

Well, you can finding the area of a circle  

Step-by-step explanation:

HURRY AND ANSWER ILL GIVE 50 POINTS AND BRAINLIST! HOW YOU WORKED OUT THE PROBLEM MUST BE INCLUDED
ALL FOUR NEED TO BE DONE!

Answers

Answer:

Question #12: a. ⅛ b. ³/₂₀

Question #4: 9 ÷ 3 = 3

Question #5: a. 80½ yards² b. $1288.00

Question #9: 1½ inches

Question #8: 16/20

Step-by-step explanation:

I hope this helped!

Cost of Freon Automobiles built before 1993 use Freon in their air
conditioners. The federal government now prohibits the manufacture of
Freon. Because the supply of Freon is decreasing, the price per pound is
increasing exponentially. Current estimates put the formula for the price per
pound of Freon at p(t) = 17.6(1.25)', where t is the number of years since
2000. Find the price of Freon in 2000 and 2010. How much will Freon cost in
the
year 2025?

Answers

9514 1404 393

Answer:

2000: 17.60 per pound2010: 163.91 per pound2025: 4,658.68 per pound

Step-by-step explanation:

We assume your formula is intended to be ...

  p(t) = 17.6(1.25^t)

__

For t=0, ...

  p(0) = 17.6

For t=10, ...

  p(10) = 17.6·1.25^10 ≈ 163.91

For t=25, ...

  p(25) = 17.6·1.25^25 ≈ 4,658.68

!PLEASE HELP!
Find the value of x when the perimeter of a rectangle is 24 meters , the length = x + 3 meters and the width = 2x meters.?

Answers

the answer is x=3; i did the work below

A paper company needs to ship paper to a large printing business. The paper will be
shipped in small boxes and large boxes. Each small box of paper weighs 45 pounds
and each large box of paper weighs 75 pounds. A total of 24 boxes of paper were
shipped weighing 1410 pounds altogether. Write a system of equations that could be
used to determine the number of small boxes shipped and the number of large boxes
shipped. Define the variables that you use to write the system.

Answers

45x+75y=1410 i hope this helps bc i’m pretty sure i’m learning the same thing but i hope this helps

(2(3^2+1)^2÷(5^2×4÷2))^3÷2^4​

Answers

Answer:

Step-by-step explanation:

Use PEDMAS

P - Parenthesis

Exponents

D - DIvision

M - Multiplication

A -  Addition

S -  Subtraction

[2 (3² + 1)² ÷ (5²*4÷2)]³÷ 2⁴ = [2 (9 + 1)² ÷ (25*4÷2)]³÷ 2⁴

                                           = [2 (10)² ÷ (25*2) ]³÷ 2⁴

                                           = [2*100 ÷ 50]³÷ 2⁴

                                            = [2*2]³÷ 2⁴

                                            = 4³÷ 2⁴

                                            = 64  ÷ 16

                                            = 4  

Select the correct answer. If 20% of a number is 35, what is 50% of that number?

Answers

87.5 is the answer.

cloud is a vegetable grower, has 8 4/15 plots of pechay, 5 1/3 plots of eggplants and 5 2/5 of okra . how many plots of vetable do cloud has?

Answers

Answer:

The total plots of vegetable cloud will be: 19

Step-by-step explanation:

From the question statement, it is clear that the cloud has [tex]8\frac{4}{15}[/tex] plots of pechay, [tex]5\frac{1}{3}[/tex] plots of eggplants and [tex]5\frac{2}{5}[/tex] plots of okra.

so, Just add all the plots to get the total plots of the vegetable cloud.

i.e.

[tex]8\frac{4}{15}+5\frac{1}{3}+5\frac{2}{5}=\frac{124}{15}+\frac{16}{3}+\frac{27}{5}[/tex]

                       [tex]=\frac{124}{15}+\frac{80}{15}+\frac{81}{15}[/tex]

                       [tex]=\frac{124+80+81}{15}[/tex]

                       [tex]=19[/tex]

Therefore, the total plots of vegetable cloud will be: 19

               

Which of the following lists does not include all the factors of the number?
4: 1, 2,4
10: 1, 2, 5, 10
5: 1,5
21: 1, 21

Answers

The Answer is 21 because 7 and 3 can go in it as well

what is |13| 16 is it = > < ?

Answers

Answer:

<

General Formulas and Concepts:

Math

Reading a number line

Algebra I

|Absolute Value| makes all numbers positive

Step-by-step explanation:

Step 1: Define

|13| = 13

16

Step 2: Compare

16 is greater than 13.

Therefore, |13| < 16.

Answer:

<

Step-by-step explanation:

because the absolute value of |13| is 13 so 13 is less than 16

Express in slope form

Answers

Y= -x+5 is the answer and

A bird flies south. Its distance from its nest, as a function of time, is modeled by y=20x+1.


What statement best describes the function?

A. The function is linear at some points and nonlinear at others.

B. Not enough info to decide.

C. Linear

D. Nonlinear

Answers

Answer:

might be c

Step-by-step explanation:

intuition

Answer: c

Step-by-step explanation: the function is linear

Which table contains a set of non-linear ordered pairs?

Answers

Answer:

The second option is your answer

Step-by-step explanation:

The functions are not aligned here.

They are not even ordered in a function.

Your answer is the second option.

Answer: The bottom right graph

Step-by-step explanation: The increase in Y values is not consistent so the non-linear ordered pairs are in the bottom right graph.

Hope this helps!

Is this problem correct?

Answers

Answer:

Yes that is correct. B is correct.

Step-by-step explanation:

When you plug 0 in for x, the result is 3.

When you plug 1 in for x, the result becomes 1.

The equation matches up correctly.

f(x) = -2x + 3

#teamtrees #WAP (Water And Plant)

You got it right. Try to substitute x values in there to check your answer.

Here's an example

f(x) = -2x + 3

f(1) = -2(1) + 3 = -2+3 = 1

.

.

.

f(4) = -2 (4) + 3 = - 8 + 3= - 5

Keep up the good work!!

Solve for c. a (c – b) = d. d + ab OC= a OC = d - ab 6 d - ab O c = a ab - d о с — a​

Answers

Answer:

Solving the equation [tex]a (c -b) = d[/tex] for c we get [tex]\mathbf{c=\frac{d+ba}{a} }[/tex]

Step-by-step explanation:

We need to solve the equation [tex]a (c -b) = d[/tex] for c

Solving the given equation:

[tex]a (c -b) = d[/tex]

Divide both sides by a

[tex]\frac{a(c-b)}{a}=\frac{d}{a}\\c-b=\frac{d}{a}[/tex]

Adding b on both sides

[tex]c-b+b=\frac{d}{a}+b\\c=\frac{d}{a}+b\\c=\frac{d+ba}{a}[/tex]

So, solving the equation [tex]a (c -b) = d[/tex] for c we get [tex]\mathbf{c=\frac{d+ba}{a} }[/tex]

A new company is hiring employees rapidly. Everyday the number of employees doubles in size. If it takes 48 days for the company to be at full capacity, how many days would it take for the company to be at half capacity?

Answers

Answer:

It would take the company 47 days to be at half capacity.

Step-by-step explanation:

From the question, it is stated that the number of employees doubles in size everyday. This implies that the current day capacity is equal to the previous day capacity. This can be written in a mathematical form as follows:

Current day capacity = Previous day capacity * 2 ......................... (1)

We can assume that the current day capacity which is 48th day in this question is equal to 100 employees. That is;

Current day capacity = 48th day capacity = 100

Substituting this into equation (1) above and solve for the previous day capacity, we have:

100 = Previous day capacity * 2

Previous day capacity = 100 / 2 = 50

Since 50 is half of 100 and the previous day is 47th day, it therefore implies that It would take the company 47 days to be at half capacity.

I dont get this
find the value of x

Answers

We have 89 and 36 inside of the triangle because 36 is a vertical angle and vertical angles are congruent)

And triangles are equal to 180.
So we add 89 with 36 and get 125 and we subtract 180 with 125 to get the missing angle 55

X and 55 are a linear pair so they are equal to 180.

180-55= 125

I think this is the correct answer X=125

Hope this helps :D

2(2x + 3) = -4 + 2(2x + 5)

Answers

Answer:

All real numbers are solutions for this problem.

Step-by-step explanation:

Find the diameter of a circle which has an area of 2.7 cm?

Answers

Answer:

1.85

Step-by-step explanation:

please mark me brainliest

Answer:

5.94cm²

Step-by-step explanation:

d = 2.75

r = d/2 = 2.75/2 = 1.375

A= πr² = π(1.375)² = 5.94cm²

please mark brainliest

Need help ASAP !!!!!!!!!!!!! Which statements describe the graph of f(x) = -1/4x as a transformation of the graph of g(x) = 1/x? Check all that apply.
A- the graph includes a vertical stretch.
B- the graph includes a compression.
C-the graph remains on the same side of the x-axis. D- the graph reflected across the x-axis ?

Answers

Answer:

It's B - The graph includes a compression

and D - The graph is reflected across the x-axis

Step-by-step explanation:

I got those right

B is right because f(ax) if a is greater than 1, then it includes a horizonal compression and 1/4x = f(4x)

D is right because -f(x) reflects across the x-axis. -f(x)= -1/x.

So -f(4x) = -1/4x

Answer:

b and d on edge

Step-by-step explanation:

just took the test

Complete parts (a) and (b) below.

The number of dogs per household in a small town

Dogs

0

1

2.

3

Probability 0.650 0.216 0.087

0.026

4

5

0.014

0.009

(a) Find the mean, variance, and standard deviation of the probability distribution

Find the mean of the probability distribution

(Round to one decimal place as needed.)

Answers

Answer:

a) The mean of the probability distribution = 0.6

b) The variance of the probability distribution = 0.3

c) The standard deviation of the probability distribution = 0.5

Step-by-step explanation:

a) Data and Calculations:

number of dogs per household in a small town

Dogs   Probability  Expected  Mean Diff    Mean Diff.

                               Value                            Squared

0          0.650           0               -0.569         0.32376

1           0.216            0.216        -0.353          0.12461

2         0.087            0.174         -0.395          0.15603

3          0.026            0.078       -0.491            0.24108

4          0.014             0.056       -0.513           0.26317

5          0.009          0.045       -0.524           0.27458

The mean =           0.569 (Sum of expected value)                          

Variance = mean of squared differences = 0.27665 (1.38323/5)

Standard deviation = square root of variance = 0.526 = 0.5

The mean, variance and standard deviation of the considered probability distribution are evaluated to be:

Mean of the distribution = 0.569Variance of the distribution = 0.923 approxStandard deviation of the distribution = 0.96 approx

How to find the mean (expectation) and variance of a random variable?

Supposing that the considered random variable is discrete, we get:

[tex]Mean = E(X) = \sum_{\forall x_i} f(x_i)x_i\\\\Variance = Var(X) = (\sum_{\forall x_i} f(x_i)x^2_i) - (E(X))^2\\[/tex]

As standard deviation is positive root of variance, thus,

[tex]\sigma = \sqrt {Var(X)}[/tex]

where [tex]x_i; \: \: i = 1,2, ... ,n[/tex] is its n data values

and  [tex]f(x_i)[/tex] is the probability of  [tex]X = x_i[/tex]

For this case, let we suppose that:

X = number of dogs per household in the considered town.

Then we have the probability distribution for values of X as:

Number of dogs     Probability

              0                  0.650

              1                   0.216

              2                  0.087

              3                  0.026

              4                  0.014

              5                  0.009

Thus, we get:

Mean of X : E(X) = [tex]0 \times 0.650 + 1 \times 0.216 + 2 \times 0087 + 3 \times 0.026 + 4 \times 0.014 + 5 \times 0.009 = 0.569[/tex]

Variance of X:

Var(X) =

[tex](0^2 \times 0.650 + 1^2 \times 0.216 + 2^2 \times 0.087 + 3^2 \times 0.026 + 4^2 \times (0.014)\\ + 5^2 \times (0.009)) - (0.569)^2 \approx 0.923[/tex]

Standard deviation of X = [tex]\sigma = \sqrt {Var(X)} \approx \sqrt{0.923} \approx 0.96[/tex]

Thus, the mean, variance and standard deviation of the considered probability distribution are evaluated to be:

Mean of the distribution = 0.569Variance of the distribution = 0.923 approxStandard deviation of the distribution = 0.96 approx

Learn more about expectation of a random variable here:

https://brainly.com/question/4515179

if a/3 = b/2 then what is the following ratio


a+b/5a

Answers

Answer:

1/3

Step-by-step explanation:

a=6

b=4

a+b=6+4=10

5.6=30

10/30=

1/3

I hope that it was helpful

~best wishes

how many real solutions does x²+8x+20=0 have?​

Answers

Answer:

No real solutions

Step-by-step explanation:

Use the discriminant formula, D = b² - 4ac

D = b² - 4ac

Plug in b, a, and c:

D = b² - 4ac

D = (8)² - 4(1)(20)

D = 64 - 80

D = -16

Since the discriminant is negative, there are no real solutions

Since the solution is a complex value, hence the equation has no real solutions

Givne the quadratic expression x²+8x+20 = 0

Factorizing the function

x²+8x+20 = 0

x = -8±√8²-4(20)/2

x = -8±√64-80/2

x = -8±√-16/2

x = -8±4i/2

x = -4±2i

Since the solution is a complex value, hence the equation has no real solutions

Learn more on quadratic equations here:https://brainly.com/question/1214333

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