The circle will be dilated by a scale factor of 6. radius is 9 in.
What is the value for n if the expression nt represents the circumference of the circles in inches?

3

Step-by-step explanation:

to dilate is to divide or to make smaller.

when dilating by a factor of 6, take one of the measurements given which is 9 and divide it by 6.

9/6 = 3/2 = 1.5

1.5 is the new radius

the circumference formula is 2*pi*r or pi*d where 'd' is the diameter. without evaluating with pi, this is what you get:

2*pi*r

2*pi*1.5

3*pi

now 'n' equals 3

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.