Use the even-odd properties to find the exact value of the expression. Do not use a calculator.tan (-?)
A. 1
B. 0
C. -1
D. undefined
Answer: B
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Evaluate the surface integral of G over the surface S.S is the cylinder y2 + z2 = 81, z ? 0 and 1 ? x ? 5; G(x, y, z) = z
A. 648 B. 72 C. 972 D. 324
Use an Euler diagram to determine whether the argument is valid or invalid.Some investments are risky.Real estate is an investment.Therefore, Real estate is risky.
A. valid B. invalid
Convert the polar equation to a rectangular equation. Then determine the graph's slope and y-intercept.r sin 
= 8
A. y = -x + 8
; slope: -1; y-intercept: 8
B. y = -x - 8
; slope: -1; y-intercept: - 8
C. y = x + 8
; slope: 1; y-intercept: 8
D. y = x - 8
; slope: 1; y-intercept: - 8
Find the composition.f(x) = -4x - 3; g(x) = 3x2 + 8x - 8Find (f ? g)(-9).
A. 425 B. 355 C. 3523 D. -655