Solve the problem.The number of periods needed to double an investment when a lump sum is invested at 2%, compounded semiannually, is given by n = 
. Find the number of years before the investment doubles in value, to the nearest tenth of a year.
A. 17.4 yr
B. 139.3 yr
C. 34.8 yr
D. 69.7 yr
Answer: C
Mathematics
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Write the number in scientific notation. ? One micron (millionth of a meter): 0.00001937 inch. ?
A. 1.937 × 102 in B. 0.00001937 × 104 in C. 1.937 × 10-5 in D. 1.937 × 103 in E. 1.937 × 10-4 in
Mathematics
Solve the problem.Find an upper bound for 
in estimating 
with n = 6 steps.
A. 
B. 
C. 
D. 
Mathematics
For the given functions f and g, find the indicated composition.f(x) = 4x2 + 5x + 4, g(x) = 5x - 6(g?f)(x)
A. 4x2 + 5x - 2 B. 20x2 + 25x + 14 C. 20x2 + 25x + 26 D. 4x2 + 25x + 14
Mathematics
Solve the inequality.For the function h(x) = x3 - 8x2, solve h(x) ? 0.
A. (0, 8] B. (-?, 8] C. (-?, 0] ? [8, ?) D. [8, ?)
Mathematics