Solve the problem.One maid can clean the house three times faster than another. Working together they can clean the entire house in 3 hours. How long would it take the faster maid cleaning alone?
A. 
hr
B. 4 hr
C. 5 hr
D. 3 hr
Answer: B
Mathematics
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Find the area or volume.Find the area of the region bounded by the curve y = 4x-2, the x-axis, and on the left by x = 1.
A. 16 B. 2 C. 4 D. 8
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Find the exact value under the given conditions.sin ? = 
, 
< ? < ?; cos ? = 
, 0 < ? < 
Find sin (? - ?).
A. - 
B. 
C. 
D. 
Mathematics
Solve the formula for the specified variable.F = 
C + 32 for C
A. C = 
B. C = 
C. C = 
(F - 32)
D. C = 
(F - 32)
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Evaluate the composition of functions.Let f(x) = x2 + 3 and g(x) = 4x + 7. Find (f ? g)(6).
A. 46 B. 163 C. 149 D. 964
Mathematics