Solve the problem. Round your answer to the nearest tenth, if necessary.Sue rowed her boat across and back Lake Bend in 3 hr. If her rate rowing back was 2 mph less than the rate rowing across, and if the distance each way was 7 mi, find her rate rowing across.
A. 5.5 mph
B. 3.7 mph
C. 1.5 mph
D. 5.9 mph
Answer: D
Mathematics
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Solve the problem.A circular swimming pool, 20 feet in diameter, is enclosed by a circular deck that is 6 feet wide. What is the area of the deck? Use ? = 3.1416.
A. 1206.4 ft2 B. 772.8 ft2 C. 314.2 ft2 D. 490.1 ft2
Mathematics
Divide and then check by multiplying.9 ÷ 1
A. 0 B. 1 C. 9 D. Undefined
Mathematics
Use the leading coefficient test to determine whether y?? or y?-? as
y = -x5 - 3x3 - 3x + 5
A. -? B. ?
Mathematics
Multiply and simplify.
? 
A. - 
B. 
C. 
D. -12
Mathematics