Solve the problem.Book sales on the Internet (in billions of dollars) in year x are approximated by f(x) = 1.84 + 2.1 ? ln x, where x = 0 corresponds to 2000. How much will be spent on Internet book sales in 2008? Round to the nearest tenth.
A. 6.2 billion
B. 8.0 billion
C. 6.0 billion
D. 3.9 billion
Answer: A
Mathematics
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Simplify.2(5x + 7)
A. 5x + 14 B. 10x + 14 C. 24x D. 10x + 7
Mathematics
Rewrite the quadratic equation in the form ax2 + bx + c = 0, then identify a, b, and c. (5x + 1)(9x - 4) = -8
A. a = 45, b = 11, c = 12 B. a = 45, b = 11, c = -4 C. a = 45, b = -11, c = 4 D. a = 45, b = -11, c = -4
Mathematics
Calculate the time necessary to achieve the investment goal. Give your answer to the nearest day. Use a 365-day year. ? $1,000 at 6% simple interest; deposit $800 ?
A. 4 year 62 days B. 4 year 304 days C. 4 year 76 days D. 4 year 69 days E. 4 year 61 days
Mathematics
Write as a decimal number rounded as indicated.-3.3
; round to the nearest tenth.
A. -3.4 B. -3.3 C. -3.31 D. -3.2
Mathematics