Simplify the expression. Assume all variables represent positive real numbers.(
+ 3)(
+ 5)
A. 
+ 5
+ 3
+ 15
B. 
+ 8
+ 15
C. 9
+ 15
D. 
+ 15
Answer: A
Mathematics
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Calculate the arc length of the indicated portion of the curve r(t).r(t) = (3t sin t + 3 cos t)i + (3 t cos t - 3 sin t)j ; -3 ? t ? 6
A. 67.5 B. 40.5 C. 135 D. 81
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The simple interest note was discounted at 15%. Find the discount period in days and the proceeds.Loan made: Jan 2Face value: $9,000Length of loan: 120 daysRate: 11%Date of discount: Mar 2
A. 61 days, $8,762.86 B. 61 days, $8,828.95 C. 60 days, $9,158.95 D. 61 days, $9,092.86
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Factor.u2 - 4uv - 45v2
A. (u + 5v)(u - 9v) B. (u - 5v)(u + v) C. (u - v)(u + 9v) D. (u - 5v)(u + 9v)
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Write the equation of the line
(a) with slope of 2/3 and containing (6, 5). (b) that is vertical and passes through (-4, 6). (c) horizontal through (7,-2).
Mathematics