
Answer:
t(5,000,000,000) = 7.5 sec
Explanation:
A computer take 0.0000000015 sec to do a calculation.
Given a function t(n) = 0.0000000015n
where n represent the number of calculation.
We need to find the total time computer to do 5 billion calculations.
We plug n = 5 billion = 5,000,000,000
Total taken time t(n) =0.0000000015n
t(5,000,000,000) = (0.0000000015)*(5,000,000,000)
t(5,000,000,000) = 1.5*5
t(5,000,000,000) = 7.5 sec
That's the final answer.
I hope it will help you.