Solve the problem.Find the volume of the solid bounded by the elliptical cone  +  =  and the planes  and  (The area of an ellipse with semiaxes a and b is ?ab.)

A. ? units3
B. ? units3
C. ? units3
D.  units3


Answer: C

Mathematics

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Solve the problem.During the first five months of the year, Len earned commissions of $3810, $2330, $3380, $2310, and $3420. If Len must have average monthly earnings of at least $3130 in order to qualify for retirement benefits, what must he earn in the sixth month in order to qualify for benefits?

A. at least $3530 B. at least $3050 C. at least $3063 D. at least $3130

Mathematics

Write the decimal in words.56.6

A. Fifty-six and six millionths B. Fifty-six and six hundredths C. Fifty-six and six thousandths D. Fifty-six and six tenths

Mathematics

Write in exponential form.loge 3 = 1.099

A. e3 = 1.099 B. e1.099 = 3 C. 3e = 1.099 D. 31.099 = e

Mathematics

Solve the problem.The rate at which an assembly line worker's efficiency E (expressed as a percent) changes with respect to time t is given by  where t is the number of hours since the worker's shift began. Assuming that  find E(t).

A. E(t) = 50t - 4t2 + 40 B. E(t) = 50t - 2t2 + 88 C. E(t) = 50t - 2t2 + 136 D. E(t) = 50t - 2t2 + 40

Mathematics