Solve the equation.Solve sec ? = 
for ?, where 0° ? ? ? 90°
A. 45°
B. 90°
C. 60°
D. 30°
Answer: A
Mathematics
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Evaluate the improper integral.
A. 
(1 - ln 2)
B. 
(1 - ln 2)
C. 
(1 - ln 2)
D. 
(1 - ln 2)
Mathematics
What is the degree of the expression?(9 + 7x + 5x4)5
A. 20 B. 10 C. 15 D. 25
Mathematics
A 1.5-mm layer of paint is applied to one side of the following surfaces. Find the volume of paint needed. Assume that x and y are measured in meters.The spherical zone generated when the curve y = 
on the interval [2, 8] is revolved about the x-axis.
A. 
? m3
B. 
m3
C. 
? m3
D. 48? m3
Mathematics
Evaluate the integral.
d?
A. 2 ln (1 + e2?) + C
B. ln (1 + e2?) + C
C. 
+ C
D. 
+ C
Mathematics