Question

Question 8 (1 point)
Explain what you did to arrive at that answer. If
you used an equation, be sure to explain why you
used each number in your math equation


Question eight goes with question seven

Answer 1

Using an exponential equation, it is found that 4 mg of the substance would still be left after 32 days.

What is an exponential function?

The equation for the amount of the substance y after x half-lifes is given by:

$y = a(0.5)^x$

In this problem, the initial mass is of a = 64 mg.

Considering a half-life of 8 days, 32 days is equivalent to x = 32/8 = 4 half-lifes, hence:

$y = 64(0.5)^4 = 4$

4 mg of the substance would still be left after 32 days.

More can be learned about exponential equations at https://brainly.com/question/25537936