2 years ago

HELP ASAP PLS!!!

Mathematics

1 answer:

nirvana33 [79]2 years ago

4 0

Answer:

176 seconds

Step-by-step explanation:

By using regression line calculator,

Equation of the line of best fit will be,

T = -12.55x + 276.52

Here , T = time taken to cover one lap

x = Age

If the age of Marsha's son is 8 years then expected time taken by her son to cover one lap will be,

T = -12.55(8) + 276.52

T = -100.4 + 276.52

T = 176.12 seconds

Therefore, approximate time taken by Marta's son will be 176 seconds.

You might be interested in

A rectangle width is one fourth it’s length, outs are is 9 square units. The equation I(1/4I)=9 can be used to find I, the lengt

OlgaM077 [116]

Answer:

The length of rectangle is 6 units and the width is 1.5 units

Step-by-step explanation:

Let

L -----> the length of rectangle

W ----> the width of rectangle

we know that

The area of rectangle is equal to

$A=LW$

we have

$A=9\ units^{2}$

$9=LW$ -----> equation A

A rectangle width is one fourth it’s length

$W=\frac{1}{4}L$ ----> equation B

substitute equation B in equation A and solve for L

$9=L(\frac{1}{4}L)$

$L^{2}=9*4$

$L^{2}=36$

take square root both sides

$L=6\ units$

Find the value of W

$W=\frac{1}{4}(6)$

$W=1.5\ units$

5 0

3 years ago

E=300-10 (30)<br> How to solve it step by step

Zepler [3.9K]

Answer:

Step-by-step explanation:

e = 300-10(30)

e = 300 - 300

e = 0

6 0

3 years ago

2x - 4 = -2 + 4x <br>what is ×

Marat540 [252]

Answer:

x = -1

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

Karen and Anthony are setting up rows for the piano recital. They set up 24 rows with 6 chairs in each row. How many total peopl

AysviL [449]

You take 24x6.
6 People per row
24 rows
the answer is
144 people.

3 0

2 years ago

2 and 3 please and show the work too answer quick cuz it’s due tomorrow pls

Svetradugi [14.3K]

722 bricks and 8 workers.

8 0

3 years ago