Perform the indicated operation.9 - (-12)
A. 21
B. -21
C. 3
D. -3
Answer: A
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Sketch the indicated curve. Find the intercepts. Find any asymptotes. Find any relative extrema and determine the intervals on which the curve is increasing and the intervals on which it is decreasing. Find any inflection points. Determine the intervals on which the curve is concave up and the intervals on which it is concave down.y = 
What will be an ideal response?
Identify the number as prime or composite.181
A. Prime B. Composite
Solve the problem.Two angles are complementary. The sum of the first angle plus twice the second angle is 153°. Find the measures of the angles.
A. 117°, 63° B. 27°, 63° C. 1°, 76° D. 22°, 68°
Find the domain of the rational function.f(x) = 
A. {x|x ? 0, x ? 4} B. {x|x ? -2, x ? 2, x ? -8} C. {x|x ? -2, x ? 2} D. all real numbers