Solve by the most appropriate method.2x2 - 7x - 9 = 0
A. 
, 1
B. 
, 0
C. 
, -1
D. 
, -1
Answer: D
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Subtract.14 - (-21)
A. -35 B. 35 C. 7 D. -7
Find the x- and y-intercepts. If no x-intercepts exist, state so. Round to two decimal places if necessary.f(x) = -x2 + 36
A. x-intercepts (6, 0) and (-6, 0); y-intercept (0, 36) B. No x-intercept; y-intercept (0, 6) C. x-intercepts (0, 6) and (0, -6); y-intercept (0, 0) D. x-intercept (6, 0); y-intercept (0, 36)
Solve the triangle. Round lengths to the nearest tenth and angle measures to the nearest degree.a = 8, b = 8, c = 5
A. A = 36°, B = 72°, C = 72° B. A = 72°, B = 72°, C = 36° C. A = 72°, B = 36°, C = 72° D. A = 73°, B = 73°, C = 34°
Factor out the GCF from the polynomial.60x9y9 + 48x5y7 + 120x3y2
A. 12x3(5x6y9 + 4x2y7 + 10y2) B. 12x3y2(5x6y7 + 4x2y5 + 10) C. cannot be factored D. 12(5x9y9 + 4x5y7 + 10x3y2)