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3 years ago

CAN SOMEONE PLEASE HELP ME??

Mathematics

2 answers:

AVprozaik [17]3 years ago

6 0

Answer:

Step-by-step explanation:

We are given the area of the circle and the formula as well. My phone doesn't have thr pi logo, so I'm gonna just type pi.

Just work backwards and solve for the radius, r.

658 sq ft is the area of the circle. We need to solve for r and we have to divide by pi first on both sides just to have r left as the only variable.

658 = pi × r × r

658/pi = r × r

Once we get the r by itself, we have to take the square root since the r is squared in the formula.

Hope this helps!

Luba_88 [7]3 years ago

4 0

Answer:

Step-by-step explanation:

the answer is 14

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Step-by-step explanation:

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3 years ago

PLEASE HELP

Papessa [141]

Answer:

A)3.74

B)17.04

C)61.92

Step-by-step explanation:

The equation of the line of best fit:

$y=3.74x+17.04$

Where x is time in hours

y = midterm score

a)For an increase of one hour in the time spent studying, what is the predicted increase in the midterm score?

General equation y = mx+c

where m is the slope .

On comparing m = 3.74

Slope is the rate of increase per hour

So, For an increase of one hour in the time spent studying, the predicted increase in the midterm score is 3.74

b)What is the predicted midterm score for a student who doesn't spend any time studying?

Substitute x = 0

y=3.74x+17.04

y=3.74(0)+17.04

y=17.04

c)What is the predicted midterm score for a student who studies for 12 hours?

Substitute x = 12

So,y=3.74x+17.04

y=3.74(12)+17.04

y=61.92

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