Factor completely.4x2 + 18x - 10

A. (4x - 2)(x + 5)
B. (2x - 1)(2x + 10)
C. 2(2x - 1)(x + 5)
D. 2(2x + 1)(x - 5)


Answer: C

Mathematics

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Write the subtraction as an addition.(-3) - (-39)

A. None of these B. (-3) + (39) C. (-3) - (39) D. (-3) + (-39)

Mathematics

Solve.Let f(x) = x2 + 12x + 36. Find x so that f(x) = 44.

A. -6 + 2
B. 1930
C. -6 + 2 , -6 - 2
D. -50, 38

Mathematics

Solve the inequality and graph the solution.v2 + 8v + 12 ? 0

A. (-?, -6]


-6

B. [-2, ?)


-2

C. [-6, -2]


-6?-2

D. (-?, -6] or [-2, ?)


-6?-2

Mathematics

Solve the problem.As part of a physics experiment, Ming drops a baseball from the top of a 315-foot building. To the nearest tenth of a second, for how many seconds will the baseball fall? (Hint: Use the formula h = 16t2, which gives the distance h, in feet, that a free-falling object travels in t seconds.)

A. 4.4 sec B. 19.7 sec C. 78.8 sec D. 1.1 sec

Mathematics