Simplify the expression. Assume all variables represent positive real numbers.
A. 4x
B. 4x
C. x
D. 4x
Answer: A
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Solve the problem.A ski run follows the curve of y = 0.01x2 - 0.5x + 6 from x = 0 m to x = 30 m. What is the angle between the ski run and the horizontal when 
A. 0.31° B. 0.29° C. 15.64° D. 0.24°
Factor completely. If the polynomial cannot be factored, say it is prime.5x2 - 5x - 30
A. 5(x + 2)(x - 3) B. (5x + 10)(x - 3) C. prime D. 5(x - 2)(x + 3)
Use the square root property to find all real or imaginary solutions to the equation.(2s + 6)2 = 25
A. 
B. 
C. 
D. 
Write an equation for a function whose graph fits the given description.The graph of f(x) = x2 is shifted 4 units to the left. This graph is then vertically shrunk by a factor of 
and reflected across the x-axis. Finally, the graph is shifted 8 units downward.
A. y = - 
(x - 4)2 + 8
B. y = - 
(x + 4)2 - 8
C. y = - 
(x - 4)2 - 8
D. y = 
(x - 4)2 - 8