Simplify.80 - (21 - 12)
A. 9
B. 59
C. 71
D. 47
Answer: C
Mathematics
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A. 2x(9x3 - 2x2 + 5x) B. 2x2(9x2 - 2x + 5) C. 2(9x4 - 2x3 + 5x2) D. x2(18x2 - 4x + 10)
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Solve the problem.What is the minimum force required to prevent a ball weighing 29.8 lb from rolling down a ramp inclined 32.6° with the horizontal?
A. 8.1 lb B. 16.1 lb C. 25.1 lb D. 12.6 lb
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Use the quotient rule to simplify the expression.
A. 
B. 9
C. -9
D. 
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Use the figure to solve the inequality.
g(x) ? f(x)
A. {x|x ? -1 or x ? 2}; (-?, -1] or [2, ?) B. {x|-1 ? x ? 2}; [-1, 2] C. {x|x < -1 or x > 2}; (-?, -1) or (2, ?) D. {x|-1 < x < 2}; (-1, 2)
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