Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.sin ? = 
, 0 < ? < 
Find cos(2?).
A. 
B. 
C. - 
D. 
Answer: D
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Solve the problem.Find the volume generated by revolving about the y-axis the area bounded by the curves:x2 - 4y2 = 4, x = 5
A. 
?
B. 7?
C. 14?
D. 2?
Add or subtract as indicated. Simplify, if necessary.
- 
A. 1 B. m C. 0 D. -m
Solve.In 1985, the number of female athletes participating in Summer Olympic-Type Games was 500. In 1996, about 3550 participated in the Summer Olympics in Atlanta. Assuming that 
and that the exponential model applies, find the value of k rounded to the hundredths place, and write the function.
A. k = 0.2; P(t) = 500e0.2t B. k = 0.18; P(t) = 500e0.18t C. k = 0.18; P(t) = 500e0.28t D. k = 0.16; P(t) = 500e0.16t
The research and development department of an automobile manufacturer has determined that when a driver is required to stop quickly to avoid an accident, the distance (in feet) the car travels during the driver's reaction time is given by src="https://sciemce.com/media/3/ppg__cognero__Section_1.8_Combinations_of_Functions_Composite_Functions__media__3741095f-1f8f-40bc-8bd6-4597a08a9b99.PNG" class="wirisformula" align="middle" style="vertical-align: middle;" data-wiris-created="true" varid="variable_id_field" variablename="impvar_b8e9bc8abebf4a5cbace6e076" />. Find the function that represents the total stopping distance T.
, where x is the speed of the car in miles per hour. The distance (in feet) traveled while the driver is braking is given by
?
A. 
B. 
C. 
D. 
E. 