Solve the problem.A motorcycle and a car leave an intersection at the same time. The motorcycle heads north at an average speed of 20 miles per hour, while the car heads east at an average speed of 48 miles per hour. Find an expression for their distance apart in miles at the end of t hours.
A. 2t
miles
B. 52
miles
C. 52t miles
D. t
miles
Answer: C
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Solve the problem.
Find an expression for the volume of the shaded solid by subtracting the volume of the smaller cylinder from the volume of the larger cylinder. Write your answer in factored form. The diameter of the larger cylinder is 2R and the diameter of the smaller cylinder is 6. Both cylinders have a height of h. The formula for the volume of a cylinder is V = ?r2h.
A. ?h(R - 3)2 B. ?h(R + 6)(R - 6) C. ?h(R + 3)(R - 3) D. h(R + 3?)(R - 3?)
Order the decimals from smallest to largest.2.954, 2.549, 2.594, 2.459
A. 2.459, 2.594, 2.549, 2.954 B. 2.954, 2.549, 2.594, 2.459 C. 2.459, 2.549, 2.594, 2.954 D. 2.954, 2.594, 2.549, 2.459
Solve the problem.Convert 88°F to Celsius. Use the formula C = 
(F - 32). Round to the nearest tenth if necessary.
A. 190.4°C B. 126.4°C C. 31.1°C D. 16.9°C
Write the following as the product of a real number and i.
A. i
B. -8i
C. 8i
D. ± 8