Question

PLEASE HELP ASAP! The weight of radioactive material, f(x), is based on the number of days the material has been exposed to the elements, x. An exponential regression equation relative to the weight of the material is f(x) = 80.402 • 0.931x. Based on this equation, approximately what is the weight of the radioactive material after 2 days?

Answer 1

Answer: D. 70

Step-by-step explanation: its correct

Answer 2

D

Explanation:

We can substitute x=2 into f(x).

f(2) = 80.402(0.931²), which is about 70