Find the amplitude.y = 5 cos
A. 
B. 20
C. 5
D. 4
Answer: C
Mathematics
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Determine ? in decimal degrees, 0° ? ? ? 90°. Round results to an appropriate number of significant digits.cot ? = 1.237
A. 38.950° B. 34.830° C. 38.95° D. 34.83°
Mathematics
Give the name of the surface.
A. Octagonal cone B. Octagonal pyramid C. Oblique cylinder D. Right octagonal prism
Mathematics
Solve the equation.t + 8
= 20
A. t = 
B. t = 
C. t = 
D. t = 
Mathematics
Add and simplify. 
+ 
A. 1
B. 
C. 
D. 
Mathematics