Translate to an equation and solve. What percent of 50 is 15?
A. 30%
B. 44%
C. 88%
D. 15%
Answer: A
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Solve the problem.Nikki is fishing from a bank 10 feet above water level. In this location, the fish tend to feed at 25 feet below the surface. How long must Nikki's fish line be to reach the fish?
A. -15 feet B. 15 feet C. 35 feet D. -10 feet
Solve the problem.A tightrope walker located at a certain point deflects the rope as indicated in the figure. If the weight of the tightrope walker is 100 pounds, how much tension is in each part of the rope? Round your answers to the nearest tenth. 
A. tension in the left part: -140.9 lb; tension in the right part: -105.2 lb B. tension in the left part: -318.7 lb; tension in the right part: 296.8 lb C. tension in the left part: -236.7 lb; tension in the right part: 220.4 lb D. tension in the left part: -160.6 lb; tension in the right part: -120.0 lb
Solve the problem.On a Touch-Tone phone, each button produces a unique sound. The sound produced is the sum of two tones, given by y = sin (2?lt) and y = sin (2?ht)where l and h are the low and high frequencies (cycles per second) shown on the illustration.
The sound produced is thus given by y = sin (2?lt) + sin (2?ht)Write the sound emitted by touching the 4 key as a product of sines and cosines.
A. y = 2 sin (439?t) cos (1,979?t) B. y = 2 sin (2,106?t) cos (566?t) C. y = 2 sin (566?t) cos (2,106?t) D. y = 2 sin (1,979?t) cos (439?t)
Add or subtract. Write the answer in lowest terms.
+ 
A. 
B. 
C. 
D. 