Q2 The function R(t) = 50e -0.013t
models the number
of grams in a sample of radium after t years. On which
interval is the sample's average rate of decay the
slowest?
[0, 5]
[10, 20]
[25, 30]
[25,35]

The interval [25, 35] has the slowest average rate of decay.

Step-by-step explanation:

The number of grams in a sample of radium is represented by the function , which is a monotonous decreasing function. Hence, the greater the values of , the slowest the average rate of decay, represented by a secant line. The interval [25, 35] has the slowest average rate of decay.