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mezya [45]
4 years ago
4

Debi walks laps around the mall for exercise during the winter months. The table represents the number of steps recorded on her

pedometer as she walks laps around the mall one day.
A table showing Debi's Walk around the Mall with two columns and six rows. The first column, Laps, has the entries, 0, 1, 2, 3, 4. The second column, Steps, has the entries, 1,875; 4,300; 6,725; 9,150; 11,575.
Which statement is true about the graph of the line representing Debi’s data?

Debi walks 1,875 steps per lap around the mall.
One lap around the mall is equal to 2,425 steps.
One lap around the mall is equal to 4,300 steps.
Debi walks 6,175 steps per lap around the mall.
Mathematics
1 answer:
alexdok [17]4 years ago
3 0

Answer:

1 lap around the mall is 4,300 steps.

Step-by-step explanation:

0 laps= 1, 875 steps

1 laps= 4,300 steps

2 laps= 6,725 steps

3 laps= 9,150 steps

4 laps= 11,575 steps

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The answer is number 2
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3 years ago
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The table show the relationship of how many pounds of cherries are needed to make a certain number of pies: pies 6 12 18 cherrie
Nataly_w [17]
M=dc/dp=4/6=4/6=2/3

c(p)=2p/3 +b  using (6,4)

4=2(6)/3+b

4=4+b, b=0 so

c(p)=2p/3  

(the number of cherries needed as a function of the number of pies)
3 0
3 years ago
What is the correlation coefficient between the variables? Round to three decimal places. Enter your answer in the box. r≈ Age S
Free_Kalibri [48]

There are two data sets x and y.

X includes = 14 25 19 35 20 12 5

Y includes = 360 293 315 212 315 331 404

 to solve for the correlation coefficient, we need to get the following values step by step

Step 1: Find the mean of each set.

The mean of X = 18.571

The mean of Y = 318.571

 

Step 2: Subtract the mean of X from every value X value (denote this with letter a). Do the same for y (denote this with letter b).

The mean of X subtracted from every X value (a):

14 - 18.571 = -4.571

25 - 18.571 = 6.429

19 - 18.571 = 0.429

35 - 18.571 = 16.429

20 - 18.571 = 1.429

12 - 18.571 = -6.571

5 - 18.571 = -13.571

The mean of Y subtracted from every value of Y (b):

360 - 318.571 = 41.429

293 - 318.571 = -25.571

315 - 318.571 = -3.571

212 = 318.571 = -106.571

315 - 318.571 = -3.571

331 - 318.571 = 12.429

404 - 318.571 = 85.429

 

Step 3: Calculate: a *  b, a^2 and b^2 of every value.

For a*b

-189.388

-164.388

-1.531

-1750.816

-5.102

-81.673

-1159.388

Sum: -3352.286


For a²

20.898

41.327

0.184

269.898

2.041

43.184

184.184

Sum: 561.714


For b²

1716.327

653.898

12.755

11357.469

12.755

154.469

7298.041

Sum: 21205.714


Step 4: Solve using this formula

r = ∑a * b / √((a²)(b²))

r = -3352.286 / √((561.714)(21205.714))

 = -0.9713


The correlation coefficient is -0.971

8 0
3 years ago
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USPshnik [31]

Answer:

y ≈ 16.33  

Step-by-step explanation:

∆SPQ is a 30-60-90 right triangle  

PS:QS:PQ = 1:2:√3

    QS/PQ = 2/√3

    QS/PQ = QS/10

     QS/10 = 2/√3     Multiply each side by 10

         QS = 20/√3

∆RSQ is a 45-45-90 right triangle.

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                                = 20√(2/3)

                                = (20√6)/3

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6 0
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(04.02 MC)
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Answer:

y = 2x - 4

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Rearrange the given equation to slope-intercept form.

x + 2y = 2

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y = -1/2x + 1

The slope of the given line is -1/2.  The slope of a perpendicular line will be the negative inverse, meaning that the slope will be 2.

-1/2 = 2

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y - 6 = 2x - 10

y = 2x - 4

The equation will be y = 2x - 4.

7 0
4 years ago
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