Evaluate the indicated function with the given information.Find tan 2x if cos x = - 
(in second quadrant).
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Solve the problem.A cylindrical water tank has height 7 m and radius 2 m (see figure). If the tank is full of water, how much work is required to pump the water to the level of the top of the tank and out of the tank? Express the answer in terms of ?. 
A. 240,100 J B. 6,722,800? J C. 960,400? J D. 392,000? J
Mathematics
Perform the addition and simplify.
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
Mathematics
Find the sum of the given infinite geometric series.14 + 2.8 + 0.56 + . . .
A. 
B. 17.36
C. 
D. 
Mathematics
Determine whether f and g are inverses by determining whether 
and 
f(x) = 
, g(x) = - 
A. Yes B. No
Mathematics