Express in terms of i.
A. ±6
B. i
C. 6i
D. -6i
Answer: C
Mathematics
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Find the mass of the wire that lies along the curve r and has density ?.r(t) = 10i + (7 - 4t)j + 3tk, 0 ? t ? 2? ; ? = 8(1 + sin 4t)
A. 16? units B. 80? units C. 20 + 80? units D. 40 + 80? units
Mathematics
Determine whether the function is linear, constant, or neithery = 
A. Linear B. Constant C. Neither
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Approximate the coordinates of each turning point by graphing f(x) in the standard viewing rectangle. Round to the nearest hundredth, if necessary.f(x) = -x3 + 
x2 + 6x - 3
A. (-2, -1) and (-1, -6.5) B. (-1, -6.5) and (2, 7) C. (-2, -1) and (1, 3.5) D. (-1, -6.5) and (1, 3.5)
Mathematics
Divide to find the exact answer. Express the answer as a whole or mixed number when possible and simplify.3
÷ 3
A. 1
B. 1
C. 2
D. 1
Mathematics