Calculate the area of the surface S.S is the lower portion of the sphere x2 + y2 + z2 = 81 cut by the cone z = 

A. 18?
B. 162?
C. 81
D. 81?

Answer: B

Mathematics

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Make a sketch of the population function (as a function of time) that results from the given growth rate function. Assume the population at time t = 0 begins at some positive value.

A.

B.

C.
 
D.

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Multiply and express the product as a mixed number or an integer.2 ? 5

A. 10
B. 10
C. 11
D. 10

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Find the indicated composite for the pair of functions.f(x) = ; g(x) = 5x2Find (g?f)(2).

A. 20
B.  
C. 75
D. 752

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Find the first term and the common ratio of the geometric sequence.-4, -16, -64, -256, -1024, . . .

A. a1 = -4, r = 4
B. a1 = 4, r = -16
C. a1 = 4, r = -4
D. a1 = -4, r = 

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