Factor completely, or state that the polynomial is prime.x3 - 216
A. (x + 216)(x2 - 1)
B. (x + 6)(x2 - 6x + 36)
C. (x - 6)(x2 + 36)
D. (x - 6)(x2 + 6x + 36)
Answer: D
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Using a calculator, evaluate the trigonometric functions. Round to four significant digits.tan 537.2°
A. 0.0488 B. -0.9988 C. -20.4465 D. -0.0489
Find all solutions of the equation in the interval [0°, 360°).2 sin2 ? - 3 sin ? - 2 = 0
A. {90°, 150°, 210°} B. {210°, 330°} C. {240°, 300°} D. {90°, 210°, 330°}
Solve the problem.Let T(x, y) = 16x2 - 2xy + 16y2 be the temperature at the point (x, y) on the ellipse 
0 ? t ? 2?. Find the minimum and maximum temperatures, Tmin and Tmax, respectively, on the ellipse.
A. Tmin = 496; Tmax = 528
B. Tmin = 240; Tmax = 272
C. Tmin = 0; Tmax = 32
D. Tmin = 
; Tmax = 
Solve by completing the square to obtain exact solutions.x2 + 4x + 13 = 0
A. -2 ± 
i
B. 2 ± 3i
C. -2 ± 3i
D. 1, -5