Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.cos ? = 
, 
? ? ? 2?Find cos 
.
A. 
B. - 
C. 
D. - 
Answer: B
Mathematics
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Use a calculator to approximate the area of the surface generated when the given curve is revolved about the x-axis. Round to two decimal places when necessary.y = x4 on [0, 1]
A. 0.55 B. 3.44 C. 1.47 D. 0.23
Mathematics
Multiply by using the rule for the square of a binomial.(x3 + 16)2
A. 256x6 + 32x3 + 256 B. x6 + 32x3 + 256 C. x3 + 256 D. x6 + 256
Mathematics
Match the given equation with one of the graphs.x2 = 3y
A. 
B. 
C. 
D. 
Mathematics
Simplify the expression by using the order of operations.5 ? 10 ÷ 
- 2 ÷ 2 + (14 - 8)
A. 15 B. 18 C. 17 D. 10
Mathematics