Find the reference angle for the given angle.150°
A. 90°
B. 60°
C. 30°
D. 45°
Answer: C
Mathematics
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Factor completely.u2 - 7uv - 18v2
A. prime B. (u - 2v)(u + v) C. (u - 2v)(u + 9v) D. (u + 2v)(u - 9v)
Mathematics
Use the given table for y = ax2 + bx + c to solve ax2 + bx + c < 0 or ax2 + bx + c > 0, as indicated.y = x2 + 16x; ax2 + bx + c < 0
A. -4 < x < 0 B. -16 < x < 0 C. x < -4 or x > 0 D. x < -16 or x > 0
Mathematics
Find the product.(x + 11)(x + 7)
A. x2 + 17x + 77 B. x2 + 18x + 77 C. x2 + 77x + 18 D. x2 + 18x + 18
Mathematics
Determine whether the given value is a solution to the given equation.Is 4 a solution of -8.5x = -34?
A. No B. Yes
Mathematics