Solve.9y2 + 27y + 20 = 0

A. - , - 
B.
C. , - 
D. - , - 


Answer: A

Mathematics

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Solve the problem.The altitude h (in m) of a rocket is given by h = -2t3 + 90t2 + 400t + 30, where t is the time (in s) of the flight. When does the rocket hit the ground?

A. 50.107 s B. 49.081 s C. 47.529 s D. 46.327 s

Mathematics

Solve the problem.In a recent survey in Canada, 88.8% of men shave with a razor blade, which is 1.5 times the percentage of men in Canada who shave with an electric razor. What is the percentage of men in Canada who shave with an electric razor?

A. 29.6% B. 44.4% C. 59.2% D. 88.8%

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Find all real solutions. Do not use a calculator.0 = x3 + 6x2 - 3x - 18

A. {-6, ±}
B. {-, -3}
C. {-6, ±3}
D. {-, -}

Mathematics

Graph the linear function.h(x) = -4x

A.

B.

C.

D.

Mathematics