Solve the problem.Strontium 90 decays at a constant rate of 2.44% per year. Therefore, the equation for the amount P of strontium 90 after t years is P = P0 e-0.0244t. How long will it take for 15 grams of strontium to decay to 5 grams? Round answer to 2 decimal places.
A. 450.25 years
B. 40.50 years
C. 4.50 years
D. 45.03 years.
Answer: D
Mathematics
You might also like to view...
Find the indicated angle or side. Give an exact answer.Find the exact length of side a.
A. 7
B. 
C. 
D. 9
Mathematics
Determine whether the equation is a function.x2 + 4y2 = 1
A. function B. not a function
Mathematics
For the pair of functions, find the indicated domain.f(x) = 2x - 5, g(x) = 
Find the domain of f ? g.
A. [3, ?) B. [0, ?) C. (-3, 3) D. [-3, ?)
Mathematics
Graph the function by starting with the graph of the basic function and then using the techniques of shifting, compressing, stretching, and/or reflecting.f(x) = 
A. 
B. 
C. 
D. 
Mathematics