Find the sum.20 + [(-2) + (-19)]
A. 3
B. 37
C. -1
D. 41
Answer: C
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Divide.
A. x2 - 5 + 
B. 3x2 - 4x - 5 + 
C. 3x2 - 4x - 5 + 
D. 3x2 - 4x - 5
Translate into an equation, then solve.Thirty-six more than the product of two and x yields forty-eight.
A. 36x + 48 = 2, x = 42 B. 2x + 48 = 36, x = -6 C. 2x + 36 = 48, x = 6 D. 2x + 48 = 36, x = 6
Find any relative extrema.f(x, y) = x3 + y3 - 9xy
A. f(1, 1) = -7, relative minimum B. f(2, 2) = -20, relative minimum C. No relative extrema D. f(3, 3) = -27, relative minimum
Use a proportion to solve the problem.On Anne's bicycle, the ratio of pedal turns to rear-wheel turns in second gear is 4 to 7. If her rear wheel turns 560 times per mile, how many times does she turn the pedal in one mile?
A. 320 times B. 567 times C. 564 times D. 980 times