Solve the problem.A certain radioactive isotope has a half-life of 462 years. Determine the annual decay rate, k.
A. 0.135%
B. 0.195%
C. 0.265%
D. 0.15%
Answer: D
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Decide whether the given set of numbers is a group under the given operation.Integers; addition
A. Yes B. No
Use a graphing calculator to find the zeros of the function. Round to three decimal places.f(x) = 4x2 - 3x - 9
A. -1.921, 1.171 B. -1.045, 1.795 C. -1.171, 1.921 D. -1.795, 1.045
Write a formula for the general term (the nth term) of the arithmetic sequence. Then use the formula for an to find a20, the 20th term of the sequence.14, 8 , 2, -4, . . .
A. an = 6n - 20; a20 = 100 B. an = -6n + 14; a20 = -106 C. an = 6n - 14; a20 = 106 D. an = -6n + 20; a20 = -100
Solve the problem.A machine can fill 1552 cartons of milk in 0.2 hour. How many cartons of milk can it fill per hour?
A. 310 cartons/hour B. 1552 cartons/hour C. 5173 cartons/hour D. 7760 cartons/hour