Convert the angle into degree, minute, second form. Round the answer to the nearest second.302.76°
A. 302°45'36''
B. 302°45'76''
C. 302°46'35''
D. 302°35'76''
Answer: A
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Solve the system by the best method. Use set notation to express the solution set.
A. {(-1, -6)} B. no solution; ? C. {(-1, -7)} D. {(-2, -6)}
Solve.Suppose that an estimated 8750 gigatons of mass of a certain ice sheet has been lost since the beginning of the 20th century. Given that a gigaton is 1012 metric tons, and a metric ton is 1000 kilograms, convert this loss to U.S. customary tons. Express your answer in scientific notation to three decimal places.
A. 8.750 × 1015 tons B. 8.750 × 1012 tons C. 9.645 × 1012 tons D. 9.645 × 1015 tons
Use a calculator to approximate the root. Round to three decimal places. Check that the answer is reasonable.
A. 24.009 B. 23.996 C. 2.888 D. 2.884
Solve using the quadratic formula. Use a calculator to approximate the solutions to the nearest thousandth.5x2 - 20x + 11 = 0
A. 1.158, 3.842 B. 0.658, 3.342 C. -5.175, -2.492 D. -3.675, -0.992