Determine the exact value of  when  and

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A.
B.
C.
D.
E.

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Answer: A

Mathematics

Use a calculator to evaluate the radical expression, rounding to the nearest thousandth.

A. -2.770 B. 2.646 C. -2.646 D. 2.770

The polar equation of the graph is either r = a + b cos ? or r = a + b sin ?, a > 0, b > 0. Match the graph to one of the equations. 

A. r = 2 + 3 sin ? B. r = 2 + 3 cos ? C. r = 3 + 2 cos ? D. r = 3 + 2 sin ?

Identify the conic section as a circle, parabola, ellipse, or hyperbola.

A. Parabola B. Ellipse C. Hyperbola D. Circle

Use the graph of a quadratic function to find the solution set of the equation or inequality. For a solution set that involves an interval, use interval notation.-x2 - 5x - 11 = 0

A. x = 11 B. (-?, 11) ? (11, ?) C. (-?, ?) D. ?