Provide an appropriate response.
Elbows are used to form bends in rigid pipe and are measured in degrees. What is the angle of bend of the elbow in the installation shown to the nearest whole degree? 
A. 41°
B. 53°
C. 49°
D. 37°
Answer: B
Mathematics
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Set up an integral for the length of the curve.y = 4 cos x, 0 ? x ? ?
A. 
B. 
C. 
D. 
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Determine the area of each figure:
a.
b.
c.
d.
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Sketch the graph of the function.
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
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The polar coordinates of a point are given. Find the rectangular coordinates of the point.(4, 70°) Round the rectangular coordinates to two decimal places.
A. (3.76, 1.37) B. (1.59, 4.01) C. (4.01, 1.59) D. (1.37, 3.76)
Mathematics