Use a graphing calculator to estimate the solution set of the equation. Round to the nearest hundredth.4(3x - 1) = 18
A. {1.03}
B. {0.36}
C. {0.71}
D. {1.83}
Answer: A
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First use front-end rounding to write an estimate of the answer, and then add the decimals to obtain an exact answer.EstimateProblem
? 
A. Estimate: 59, exact: 55.67 B. Estimate: 59, exact: 65.67 C. Estimate: 60, exact: 66.67 D. Estimate: 59, exact: 64.67
Solve the problem.A rectangular Persian carpet has a perimeter of 228 inches. The length of the carpet is 30 inches more than the width. What are the dimensions of the carpet?
A. 102 in. long by 72 in. wide B. 72 in. long by 42 in. wide C. 129 in. long by 99 in. wide D. 114 in. long by 84 in. wide
Factor completely, if possible.r2- 4r + 4
A. (r - 4)(r + 4) B. (r + 2)2 C. (r - 2)2 D. (r - 2)(r + 2)
Use the change-of-base formula and a calculator to evaluate each logarithm.log2.2 79
A. 5.5418 B. 35.9091 C. 0.1804 D. 1.8976