Solve the problem.The time T in seconds required for a pendulum of length L feet to make one swing is given by T = 2? 
.How long is a pendulum if it makes one swing in 3.00 sec? Round your answer to the nearest tenth of a foot.
A. 8.0 ft
B. 7.3 ft
C. 15.3 ft
D. 14.6 ft
Answer: B
Mathematics
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Evaluate the requested trigonometric function using the information given. sin ? = - 
; ? < ? < 3?/2Find cos ?.
A. - 
B. - 
C. - 
D. 
Mathematics
Solve the problem.The manufacturer of a CD player has found that the revenue R (in dollars) is 
when the unit price is p dollars. If the manufacturer sets the price p to maximize revenue, what is the maximum revenue to the nearest whole dollar?
A. $71,556 B. $572,450 C. $143,113 D. $286,225
Mathematics
Convert as indicated.580 L to kiloliters
A. 58,000 kl B. 5.8 kl C. 0.58 kl D. 580,000 kl
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Convert the given polar coordinates of the point to rectangular coordinates.(9, 210°)
A. 
B. 
C. 
D. 
Mathematics