Find the commission earned or the rate of commission. Round money answers to the nearest cent if necessary.Sales: $142 Commission rate: 3%
A. $5.68
B. $42.60
C. $2.84
D. $4.26
Answer: D
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Perform the indicated operation.
A. 14a8 B. 12a5 + 2a3 C. 14a16 D. 12a10 + 2a6
Determine whether the Fourier series of the given function will include only sine terms, only cosine terms, or both sine terms and cosine terms.f(x) = 7 - 8x + x2 -8 ? x < 8
A. both sine and cosine terms B. only cosine terms C. only sine terms
Solve the problem.Use a graphical method to determine the approximate interval for which the second order Taylor polynomial for 
at 
approximates 
with an absolute error of no more than 0.04.
A. -0.4310 ? x ? 0.5525 B. -0.5525 ? x ? 0.5525 C. -0.1928 ? x ? 0.7063 D. -0.5525 ? x ? 0.2640
Factor by grouping.x2 + 8x + xy + 8y
A. (x - 8)(x - y) B. (x + 8)(x + y) C. (x + 8)(x - y) D. (x - 8)(x + y)