What is the correlation coefficient r for the data set?



Enter your answer to the nearest hundredth in the box.

r=



x y
25 240
26 242
27 230
28 229
28 220
28 219
29 200
30 202
31 184
32 180

I think its -0.95 but im not sure. please explain

Answers

Answer 1

Answer:

c

Step-by-step explanation:


Related Questions

I need help please help me guys with the correct answer

Answers

Answer:the answer is D

Step-by-step explanation:

it is

126×(−55)+126×5 STEP explanation ​

Answers

Your answer is: -6300

Hope this helps and happy holidays!!

On the grid, draw the image of a shape R after the transformation represented by the matrix (0 -1
(1 0)

Answers

............ What!?!?!??

Find the percent increase from the first number to the second in the following pairs.
A. 100, 140
B. 80, 125
C. 60, 80
D. 9,1

Answers

A. 40%
B. 56.25%
C. 33.3333%
D. -88.8888%

Find the unit rate and slope of the graph (ignore what I put down)

Answers

Answer:

slope: 5/7

0.714 mile per hour

Step-by-step explanation:

slope: find the point where the line is right on the line graph, put y/x which is 10/14 make the fraction smaller which is 10/14 = 5/7(I divide the denominator and nominator by 2)

Mile per hour: 5/7 cross multiply with x/1, make into an equation:

7x=5 x 1

7x = 5

x = 0.714

The length of a rectangular dog run is 2 feet more than twice the width, w, and the perimeter of the dog run is 32 feet. Solve the equation
2w + 2(2w + 2) = 32 to find the width, w, of the dog run. Then find the length, 2w+2, of the dog run.

Answers

Answer:

The width is:

width = 4.7 feet

The length is:

length = 11.3 feet

Step-by-step explanation:

Given the equation

[tex]2w\:+\:2\left(2w\:+\:2\right)\:=\:32[/tex]

[tex]2w+4w+4=32[/tex]          ∵ [tex]a\left(b+c\right)=ab+ac[/tex]

Add similar elements: 2w+4w=6w

[tex]6w+4=32[/tex]

subtract 4 from both sides

[tex]6w+4-4=32-4[/tex]

[tex]6w=28[/tex]

Divide both sides by 6

[tex]\frac{6w}{6}=\frac{28}{6}[/tex]

[tex]w=\frac{14}{3}[/tex]

Hence, the width is:

[tex]w=\frac{14}{3}[/tex]

w = 4.7 feet

Therefore, the width is: 4.7 feet

As the length is:

2w+2 = 2(14/3)+2

          = 28/3 + 2

           = 34/3

            = 11.3 feet

Therefore, the length is: 11.3 feet

SUMMARY:

The width is:

width = 4.7 feet

The length is:

length = 11.3 feet

Round 14,456 to nearest ten

Answers

Answer:

14,460.

Step-by-step explanation:

14,456 up by 4. anything 6 or above goes up. the tenth place is the second to last number.

A sheet of metal 12 inches by 10 inches is to be used to make a open box. Squares of equal sides x are cut out of each corner then the sides are folded to make the box. Find the value of x that makes the volume maximum.


*Round to 2 decimal places and write out "inches"

Answers

Answer:

1.81 inches

Step-by-step explanation:

We are told that the sheet of metal to be used measures 12 inches by 10 inches.

Squares of equal sides x are cut out of each corner. Thus, it means total of 2x is cut of the 12 inches side and 10 inches side.

Thus;

Length; L = 12 - 2x

Width; W = 10 - 2x

Height; H = x

Volume of the box is;

V = LWH

V = (12 - 2x)(10 - 2x)x

Factorizing out, we have;

V = 4x[(6 - x)(5 - x)]

Equating V to zero, we can find the domain of the function;

At V = 0,

4x = 0; 6 - x = 0 ; 5 - x = 0

x = 0, x = 6, x = 5

The dimensions have to be positive. Thus;

0 ≤ x ≤ 5

Expanding the volume equation;

V = 4x[30 - 5x - 6x + x²]

V = 4x[30 - 11x + x²]

V = 4x³ - 44x² + 120x

dV/dx = 12x² - 88x + 120

Equating to zero to find the value of x that makes volume maximum;

12x² - 88x + 120 = 0

Using quadratic formula gives;

x = 1.81 or 5.52

From our domain, we have 0 ≤ x ≤ 5.

1.81 falls within the domain and therefore we will pick it as the height that makes the volume maximum.

Answer:1.81

Step-by-step explanation:

x=1.81

An object has an acceleration of 12.0 m/s/s. If the mass of this object were tripled (with no change in its net force), then its new acceleration would be m/s/s.?​

Answers

Answer:

ummm

Step-by-step explanation:

I believe it's A2=8m/s^-2

APQR is an equilateral triangle. One side measures 5x - 7 and another side 3x + 11. Find the length of each
side.

Answers

Step-by-step explanation:

x=9

therefore,

each sides length is 9

5x-7=3x+11

=5x-3x=7+11

=2x=18

=x=9

See the attachment plsss

Which expression is equivalent to sqrt(80)?

Answers

Answer:

b on edg

Step-by-step explanation:

second part

a=4

b=5

Solve the following exponential equation 23x+1 = 52x-3. Give an exact answer and an
approximation to 4 decimal places if needed. Show all work.

Answers

Answer:

x = 0.1379

Step-by-step explanation:

23x + 1 = 52x - 3

-23x       -23x

-----------------------

1 = 29x - 3

+3          +3

------------------

4 = 29x

÷29     ÷29

-------------------

x = 0.1379

9. Which of the following equations has NO solution?

A. a + 2 = a + 2
B. a = -a + 2
C. a + 2 = a - 2
D. a + a = 2​

Answers

Answer:

C. a +2 = a - 2

Step-by-step explanation:

a + 2 = a - 2

a + 4 = a

4 = 0

Simplify the expression. 55−4x5+12

Answers

Answer:

First we add four point five plus twelve and we get sixteen point five, and so now we subtract fifty-five minus sixteen point five and we get our answer.

Answer: 62.5

Step-by-step explanation:

Hope this helps!

:)

At the end of a snow storm, Mia saw there was a lot of snow on her front lawn. The temperature increased and the snow began to melt at a steady rate. Let SS represent the depth of snow on Mia's lawn, in inches, tt hours after the snow stopped falling. The table below has select values showing the linear relationship between tt and S.S. Determine the rate at which the snow is melting per hour.

Answers

Answer:

the snow per hour is

Step-by-step explanation:

um wait what chart theres no info to awnser this sorry you may delete this awnser :( but im letting ya know

Answer:

1.5 is the answer.

Step-by-step explanation:

Can you guys help me pls

Answers

The slope would be y/x = 3/1 = 3
Answer: 3

Explanation: When answering a question like this check to see if the line is a negative slope : or a positive slope:

use the steps: RISE-over-RUN

FOR EXAMPLE- this would be rise 3 run 1

3/1 or 3 :)

Am I correct because I’m confused

Answers

Answer:

you could be correct but I think it's B

1. Let f(1) = 722 – 5x + 3 and g(1) = 22² + 45 – 6.7x2-5x+3
Part A: Find f (x) + g(x)|
Part B: Find f (a) - g()
Part C: Find g(a) - f(x)
GICI

Answers

Answer:

The correct answer is B

what's the sum of 6+y

Answers

Answer:

6y?

It's probably wrong but off the top of my head, 6y

Solve and graph.
3<4-2x<6

Answers

Answer:

X ( - 1, 1/2)

Step-by-step explanation:

4 - 2x > 3

4 - 2x < 6

Then solve the inquality for x

X< 1/2

X > - 1

Then u get the answer x ( - 1, 1/2)

Note: [ 1/2 is 1 over 2]

Step-by-step explanation:

3<4-2x 4-2x<6

-1<-2x -2x<2

1/2>x x>-1

x<1/2

the graph shown in pic

If the r-value, or correlation coefficient, of a data set is 0.841, what is the
coefficient of determination to three decimal places?

Answers

Answer: 0.707

Step-by-step explanation:

Answer: 0.707 is the correct answer!!

Step-by-step explanation:

Please help i need it done asap
Thank you have a great day

Answers

I did this and I got the last answer
Hope this helps I know for sure it’s right so let me know if you got it right

PLZ HURRY IT'S URGENT!!!
What is the linear inequality shown in the graph?



options:

y≥2x−4

y 2x−4

Answers

Answer:

option 1

Step-by-step explanation:

hope that helps you :)

Answer:

y>/ 2x -4

Step-by-step explanation:

This >/ means the line underneath

In the diagram find m angle BAC

Answers

Answer:

I'm thinking b not 100 percent sure

Answer:

The answer is B) 122 degrees

13 is 26%of what number

120 is 30% of what number

Answers

50 and 400 do you need me to explain

Answer:

1. 50%

2. 400

What is the slope of the line?

-2

1/2

1

2

Answers

Going to be number two becaus

Based on the position vs. time graph, which velocity vs. time graph would correspond to the data? A graph with horizontal axis time (seconds) and vertical axis position (meters). A line runs straight upward from 0 seconds 0 minutes.

Answers

Answer:

C or the graph with continuous acceleration (straight line)

Step-by-step explanation:

It's the right answer on edguinity

Answer:

c

Step-by-step explanation:

what is the measure of the larger angle in this degree?​

Answers

Answer:

A straight line is equivalent to 180 degrees with that in mind,

(2.4x)+(9.6x)=180
2.4x+9.6x=180
12x=180
12x/12=180/12
x=15

Now to find the measurement of the larger angle,

9.6*15=144
Just in case you need it
180-144=36
Which is your smaller measurement.

5x−4 = 3x +8
i need the steps on how to find x
plz, i got a 0 the first time i did it

Answers

Answer:

5x − 4 = 3x + 8

5x - 4 + 4 = 3x + 8 + 4

5x = 3x + 12

5x - 3x = 3x + 12 - 3x

2x = 12

2x / 2 = 12 / 2

x = 6

Answer:

x=6

Step-by-step explanation:

Let's solve your equation step-by-step.

5x−4=3x+8

Step 1: Subtract 3x from both sides.

5x−4−3x=3x+8−3x

2x−4=8

Step 2: Add 4 to both sides.

2x−4+4=8+4

2x=12

Step 3: Divide both sides by 2.

2x/2=12/2

x=6

Answer:

x=6

It takes Amy 18 minutes to read 4 pages of a book. The Hunger Games has 374 pages, Catching Fire has 391 pages, Mockingjay has 517 pages and the newest book, The Ballad of Songbirds and Snakes, has 390 pages. If she has already read The Hunger Games, how long will it take her to read the rest of the book series?

Answers

The answer is 5841 minutes.

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