Find the exact value of the following expression without using a calculator.cot (60°)
A. 
B. 1
C. 
D. 
Answer: D
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Find the volume of the solid generated by revolving the shaded region about the given axis.About the x-axis
A. 8?2 - 16? B. 8?2 - 4? C. 8?2 D. 8?2 + 16?
Find the volume of the described solid.The solid lies between planes perpendicular to the x-axis at 
and 
. The cross sections perpendicular to the x-axis between these planes are squares whose bases run from the semicircle 
to the semicircle 
.
A. 
B. 
C. 
D. 
Solve the right triangle. If two sides are given, give angles in degrees and minutes.
a = 69.74 ft, c = 242 ftRound the missing side length to two decimal places.
A. A = 14° 45', B = 75° 15', b = 243.32 ft B. A = 16° 45'; B = 73° 15'; b = 231.73 ft C. A = 17° 45', B = 72° 15', b = 231.73 ft D. A = 16° 45', B = 73° 15', b =215.51 ft
Provide an appropriate response.What is the amplitude of the function y = 
cos 
?
A. 3
B. 3x
C. 
D. 180°