Solve.By switching service providers, a family's telephone bill decreased from about $50 a month to about $43. What was the percent of decrease?
A. 14%
B.
| 7% |
C. 15%
D. 16.3%
Answer: A
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Solve the equation.3(6 + 3x) =
A.
B.
C.
D.
Solve.You deposited $4,000 in an account that pays 12% annual interest compounded continuously. Write the equation to determine the amount, A, you will have in t years. How much will you have in 5 years?
A. A = 4,000e0.12t; $7,288.48 B. A = 4,000et; $593,652.61 C. A = 4,000e0.12; $4,509.99 D. A = 4,000(1.01)12t; $7,266.79
Solve. -7t = 56
A) –392 B) 8 C) 49 D) –8 E) 63
Use a graphing utility to graph the function and approximate (to two decimal places) any relative minimum or relative maximum values.
A. relative maximum: (2.58, 0.39)relative minimum: (7.27, -1.72) B. relative maximum: (0.39, 2.58)relative minimum: (-1.72, 7.27) C. relative maximum: (-1.72, 7.27)relative minimum: (0.39, 2.58) D. relative maximum: (7.27, -1.72)relative minimum: (2.58, 0.39) E. relative maximum: (2.58, 28.33)relative minimum: (7.27, 478.41)