Solve the equation for solutions in the interval [0°, 360°). Round to the nearest degree.sin 2? = cos ?
A. {105°, 165°, 285°, 345°}
B. {15°, 165°, 195°, 345°}
C. {0°, 120°, 180°, 240°}
D. {30°, 90°, 150°, 270°}
Answer: D
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Simplify the expression. Use positive exponents. Assume variables represent nonnegative numbers.(-5x5)(3x4)
A. -15x9 B. 8x20 C. -15x20 D. 8x9
Write the equation of the line with the given slope, m, and y-intercept, (0, b).m = - 
; b = 
A. y = 
x - 
B. y = 
x + 
C. y = - 
x + 
D. y = - 
x - 
Solve. x + 2y + 3z = 6 2y + 3z = 1 z = -1
A. {(-1, 2, 5)} B. {(5, -1, 2)} C. {(-1, 5, 2)} D. {(5, 2, -1)}
Solve the problem.A brick staircase has a total of 18 steps The bottom step requires 101 bricks. Each successive step requires 4 fewer bricks than the prior one. How many bricks are required to build the staircase?
A. 1206 bricks B. 1170 bricks C. 2412 bricks D. 2430 bricks