7. The formula for the area of a circle is A = nr2 . Which equation shows the formula in terms of r?

r = √A/n

Step-by-step explanation:

the formular given as the area of circle

A= nr²

now inorder to express the formula in terms of r is the same as saying that we should make r the subject of the formulae.

A= nr²

divide both sides by n

we have

A/n = nr²/n

A/n = r²

Since we are aske to express the formula interms of  r and not r²,

we are going to square both sides

A/n = r²

√A/n =( r²)²

√A/n = r

therefore

r = √A/n

answer: since the question is talking about growth you have to use the growth formula which is inital amount (1 + growth)^time

step-by-step explanation:

the intial amount is 1200, the growth is 4.8, and the time is 7. plug those numbers into the equation, also i think you have to change 4.8 into a percent. but, i have forgotton how to do that. if this is a online class go on to the lesson.

,xzgv

step-by-step explanation:

; oqirjg'