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%
Mathematics
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