Simplify the expression. Write the answer with positive exponents. Assume that all variables represent positive numbers.
2
A. 
B. 
C. 
D. 
Answer: D
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Use the order of operations to find the value of the expression.4 ? 5 + (-6) ? 5
A. 14 B. -4 C. -10 D. -26
Use the rational zero test to find all the rational zeros of f(x).f(x) = 4x4 + 28x3 - 33x2 - 7x + 8
A. Zeros: -1, 8, -1/2, 1/2 B. Zeros: 1, -8, 1/2, -1/2 C. Zeros: -1, -8, 1/2, -1/2 D. Zeros: 1, -8, 2, -2
Multiply.(8 + 4x)(-3 + 4x)
A. 4x2 + 20x + 20 B. 16x2 + 20x - 24 C. 16x2 - 24x + 20 D. 16x2 + 19x - 24
Solve the problem.The function h described by 
gives the height of a ball thrown upward with a speed of 33.1 feet per second from a 124.26 ft high window t seconds after it is thrown until it hits the ground. Find the height of the ball 0.9 seconds after it is thrown.
A. 107.43 ft B. 167.01 ft C. 141.09 ft D. 81.51 ft