Solve the problem.There are 12 people in a club. A committee of 3 persons is to be chosen to represent the club at a conference. In how many ways can the committee be chosen?

A. 646
B. 1320
C. 220
D. 440

Answer: C

Mathematics

Evaluate the line integral of f(x,y) along the curve C.f(x,y) = 3y2, C: y = e-x, 0 ? x ? 5

A. 1
B. 1[2 - (e^{- 10} + 1)^3/2]
C. 1
D. [2 - (e^{- 10} + 1)^3/2]

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Mathematics

Simplify the radical. Assume that all variables represent positive real numbers.-

A. -
B. Not a real number
C.
D.

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Mathematics

Use the numeric integration feature on your calculator to find the integral.

A. 0.88623 B. 0.05048 C. 0.00248 D. 0.00415

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Mathematics

Multiply.(-x)(x - 5y)(x - 3y)

A. -x3 + 8x2y - 15xy2 B. -x2 + 8xy - 15y2 C. -x3 - 8x2y + 15xy2 D. -x3 - 8xy + 15y2

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Mathematics