Simplify the fraction.
A. 
B. 
C. 
D. 
Answer: B
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Solve the problem.The cost for labor associated with fixing a washing machine is computed as follows: There is a fixed charge of $25 for the repairman to come to the house, to which a charge of $20 per hour is added. Find an equation that can be used to determine the labor cost, C(x), of a repair that takes x hours.
A. C(x) = 25 - 20x B. C(x) = ( 25 + 20) x C. C(x) = 25 + 20x D. C(x) = 20 + 25x
Use identities to find the indicated value for each angle measure.sin ? = 
, tan ? < 0
Find sin(2?).
A. 
B. 
C. - 
D. 
Find the reference angle for the given angle.
A. 
B. 
C. 
D. 
Solve.A person at the top of a 600 foot tall building drops a yellow ball. The height of the yellow ball is given by the equation src="https://sciemce.com/media/4/ppg__2720710191238__f1q22g4.jpg" alt="" style="vertical-align: -4.0px;" /> where h is measured in feet and t is the number of seconds since the yellow ball was dropped. Find the time that the balls are the same distance above the ground and find this distance.
A. 3.5 sec; 404 ft
B. 4 sec; 344 ft
C. 4.5 sec; 276 ft
D. 3 sec; 456 ft
where h is measured in feet and t is the number of seconds since the yellow ball was dropped. A second person, in the same building but on a lower floor that is 
from the ground, drops a white ball 
after the yellow ball was dropped. The height of the white ball is given by the equation