Use trigonometric identities to solve each equation in the interval [0, 2?]4 sin2 x = 4 cos x + 1
A. 
B. 
C. ?
D. 
Answer: A
Mathematics
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Solve the problem. Round your answer, if appropriate.The volume of a rectangular box with a square base remains constant at 1,100 cm3 as the area of the base increases at a rate of 2 
2/sec. Find the rate at which the height of the box is decreasing when each side of the base is 12 cm long. (Do not round your answer.)
A. 
cm/sec
B. 
cm/sec
C. 
cm/sec
D. 
cm/sec
Mathematics
Match the function f with its graph.f(x) = log5 (-x)
A. 
B. 
C. 
D. 
Mathematics
Perform the indicated operation. Assume that all variables represent nonnegative real numbers.17
- 3
A. 14
B. 8
C. 17
- 3
D. 8
Mathematics
Solve the problem.The five sales people at Southwest Appliances earned commissions last year of 
, 
, 
, 
, and 
. Find the mean commission.
A. $27,930 B. $29,260 C. $26,600 D. $25,270
Mathematics