Arock was dropped from the top of a building. the function that describes the height after it was dropped is f(x)=64-16x^2. what are the zeros of the function and what do they mean?

Step-by-step explanation:

f(x) = height = 64 - 16x^2 = 0.

16x^2 = 64

x^2 = 4

x = 2, -2.

The zero x = 2 means that the height after time 2 is 0. This corresponds to the time of the rock hitting the ground.

The -2 can be ignored.

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.