Question

Juan analyzes the amount of radioactive material remaining in a medical waste container over time. He writes the function f(x) = 10(0.98)x to represent the amount of radioactive material that will remain after x hours in the container. Rounded to the nearest tenth, how much radioactive material will remain after 10 hours?

Answer 1

The correct answer is 8.2 !!! I just took the test 100%

Answer 2

since x is the number of hours and they give you 10 hours replace 10 for x

so it becomes 10 x (0.98) x 10 = 98