The decay of 942 mg of an isotope is described by the function a(t)= 942e-0.012t, where t is time in years. find the amount left after 71 years. round your answer to the nearest mg.

Applying the exponential function, it is found that the amount after 71 years is of 402 mg.

The exponential equation for the amount after t years is given by:

For the amount after 71 years, we find A(71), thus:

The amount after 71 years is of 402 mg.

A similar problem is given at link

4/6 = 2/3

so it should take 3/3 hours per man. so 9 hours is the answer 3*3 =9

step-by-step explanation:

probably the last option

step-by-step explanation: