Find the length of the indicated portion of the curve.r(t) = (1 + 5t)i + (1 + 7t)j + (3 - 3t)k, -1 ? t ? 0
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Use the change of base formula and a calculator to evaluate the logarithm. Round your answer to two decimal places.log7.2 6.3
A. 1.07 B. 0.80 C. 0.88 D. 0.93
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Expand the binomial.(x-3 + 2)5
A. 32x-15 B. x-15 + 32 C. x-15 + 5x-12 + 10x-9 + 10x-6 + 5x-3 + 1 D. x-15 + 10x-12 + 40x-9 + 80x-6 + 80x-3 + 32
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Let p represent a true statement, and let q and r represent false statements. Find the truth value of the given compound statement.(~p ? ~q) ? ~q
A. True B. False
Mathematics