Given vectors 
and 
determine the quantity indicated below.
A. 18
B. -20
C. -22
D. 0
E. -6
Answer: C
Mathematics
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Find the length of the indicated portion of the curve.r(t) = (etcos t)i + (etsin t)j + 7etk, -ln 2 ? t ? 0
A. 
B. 
C. 
D. 
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List the intercepts of the graph. 
A. (-9, 0), (0, -9), (0, 0), (0, 9), (9, 0) B. (-9, 0), (0, -9), (0, 9), (9, 0) C. (-9, 0), (0, 9) D. (0, 9), (9, 0)
Mathematics
Factor by grouping.x3 + 5x2 + 6x + 30
A. (x3 + 6)(x + 5) B. (x2 + 6)(x + 5x) C. (x2 + 6)(x - 5) D. (x2 + 6)(x + 5)
Mathematics
Express as a sum, difference, and product of logarithms, without using exponents.log16 
A. log16 (13
) + log16 y
B. log16 y - log16 13 - 
log16 x
C. log16 13 ? 
log16 x ÷ log16 y
D. log16 13 + 
log16 x - log16 y
Mathematics