Solve.The perimeter of a rectangle is  inches and its length is  inches. Find its width.

A. (2x2 + 3x + 9) inches
B. (3x2 + 4x + 14) inches
C. (x2 + x + 5) inches
D. (3x + ) inches

Answer: C

Mathematics

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Find at least three nonzero terms [including a0, at least two cosine terms (if they are not all zero) and at least two sine terms (if they are not all zero)] of the Fourier series for the given function.f(x) = 

A. f(x) =  - 
B. f(x) = 3 - 
C. f(x) =  - 
D. f(x) =  - 

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Find the missing factor or exponent(s).(x?y?)6 = x18y54

A. 3, 9 B. 3, 6 C. 6, 9 D. 12, 48

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Solve the problem.An arithmetic sequence contains the terms a6 = -12 and a10 = -28. Find the first term and the general nth term.

A. a1 = 4; an = -4n + 8 for all n ? 1 B. a1 = 8; an = 4n + 12 for all n ? 1 C. a1 = 8; an = -4n + 12 for all n ? 1 D. a1 = 8; an = -4n + 8 for all n ? 1

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Add.-65 + (-76)

A. -11 B. 141 C. 11 D. -141

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Mathematics