Simplify.-20 - 0 - (-18) - 10 + 4
A. -24
B. -32
C. 12
D. -8
Answer: D
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Factor completely. If the polynomial cannot be factored, say it is prime.24x2 + 68x + 48
A. (2x + 1)(3x + 12) B. 4(12x + 3)(x + 4) C. 4(2x + 3)(3x + 4) D. 4(2x + 1)(3x + 12)
Solve the problem.John (whose line of sight is 6 ft above horizontal) is trying to estimate the height of a tall oak tree. He first measures the angle of elevation from where he is standing as 35°. He walks 30 feet closer to the tree and finds that the angle of elevation has increased by 12°. Estimate the height of the tree rounded to the nearest whole number.
A. 90 ft B. 86 ft C. 61 ft D. 67 ft
Solve the inequality.
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What will be an ideal response?
Simplify the expression by removing as many factors as possible from under the radical. Assume that all variables represent positive real numbers.
? 
A. 64 B. 128 C. 16 D. 8