Solve the problem.A long-distance runner runs 2 miles south and then 4 miles east. How far is the runner from the starting point? Round to nearest tenth. 
A. 1.1 mi
B. 1.5 mi
C. 2.5 mi
D. 4.5 mi
Answer: D
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Express the integrand as a sum of partial fractions and evaluate the integral.
A. 1.76 B. 0.88 C. 1.43 D. 3.52
Find the distance between the pair of points. Give an exact answer, and where appropriate, an approximation to three decimal places.(0.4, -0.8) and (2.3, 2.6)
A. 3.895 B. 3.257 C. 7.324 D. 3.245
Work the problem. Give the answer in scientific notation, rounded to two decimal places, unless otherwise indicated.A light-year is the distance that light travels in one year. Find the number of miles in a light-year if light travels 1.86 × 105 miles/second. Assume that there are 365 days in a year.
A. 5.87 × 107 miles B. 5.87 × 1012 miles C. 5.87 × 1014 miles D. 5.87 × 105 miles
Round to the indicated place value.Round to the nearest thousandth: 0.102312
A. 0.102 B. 0.10 C. 0.11 D. 0.1023