Graph the system of inequalities.9x + y ? 99x + y ? 0 

A.

B. No solution

C.

D.


Answer: A

Mathematics

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Use a spherical coordinate integral to find the volume of the given solid.the solid between the sphere  and the cardioid of revolution 

A. 990? B. 495? C. 396? D. 792?

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Government economists of a developing country determined that the purchase of imported perfume is related to a proposed "luxury tax" by the formula , , where N(x) measures the percentage of normal consumption of perfume when a "luxury tax" of x% is imposed on it. Find the rate of change of N(x)

for a tax of 70%.
?

A. ?
B. ?
C. ?
D.

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Divide.

A. 20.3 B. 2.03 C. 10.3 D. 1.03

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Find the area under the given curve over the indicated interval.y = x2 + 3; [0, 2]

A.
B.
C.
D.

Mathematics