Evaluate the line integral along the curve C.
ds, C is the curve r(t) = (-7 - t)i - j + (-7 - t) k, 0 ? t ? 1
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Write the first five terms of the sequence {an}.a1 = 1, a2 = 5, an + 2 = an + 1 + an
A. 1, 5, 6, 12, 18 B. 1, 5, 6, 7, 8 C. 1, 5, 6, 11, 17 D. 1, 1, 2, 3, 5
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Solve.A $320 lamp is on sale at 45% off. What is the discount?
A. $176.00 B. $144.00 C. $14.40 D. $305.60
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Use the distributive property to rewrite the expression. Simplify if possible.9(6x) + 9(-3y)
A. 9x(6 - 3) = 27x B. 54x - 27y C. 18(6x - 3y) D. 9(6x - 3y)
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Factor the four-term polynomial by grouping.x3 + 9x2 + x + 9
A. (9x2 + 9)(x + 1) B. (x2 + 1)(9x + 9) C. (x2 + 1)(x + 9) D. (x2 + 9)(x + 1)
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