Solve the problem.How long will it take a sample of radioactive substance to decay to half of its original amount, if it decays according to the function A(t) = 550e-0.065t, where t is the time in years? Round to the nearest hundredth year.
A. 35.75 years
B. 10.66 years
C. 97.08 years
D. 107.74 years
Answer: B
You might also like to view...
Find the remainder by long division.(2x4 + 3x3 + 2x2 + 9x - 6) ÷ (x + 3)
A. 66 B. 258 C. -222 D. 450
Write the numeral as a Babylonian numeral.1803
A.
   ? |   |
B.
  ? |   |
C.
D.
   ? |    |
Provide an appropriate response.If f(x) = 4x3 + 7x2 - 5x - 3, find f'''(x).
Fill in the blank(s) with the appropriate word(s).
Eleni, who is now 50 years old, is employed by a firm that guarantees her a pension of $40,000/year at age 65. What is the present value of her first year's pension if inflation over the next 15 year(s) is at the given rate. Assume that inflation is continuously compounded. Round your answers to the nearest cent. ? 6% ? $__________ ? 7% ? $__________ ? 18% ? $__________
What will be an ideal response?