Simplify. Assume that all variables represent positive numbers.
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Evaluate the line integral along the curve C.
ds , C is the curve r(t) = (2t5 cos t)i + (2t5 sin t)j + 2t5k , 0 ? t ? 5
A. 
(4 + 
)
B. 
(4 - 
)
C. 
(4 - 
)
D. 0
Mathematics
Completely factor the polynomial or state that the polynomial is prime.x3 - 729
A. (x - 9)(x2 + 81) B. (x + 9)(x2 - 9x + 81) C. (x + 729)(x2 - 1) D. (x - 9)(x2 + 9x + 81)
Mathematics
Apply the distributive property.5x(9 - x)
A. -5x2 - 45x B. -5x2 + 45x C. 5x2 + 45x D. 5x2 - 45x
Mathematics
Simplify the expression by combining like terms, if possible.7x - 5x
A. 12x B. -35x C. 2 + x D. 2x
Mathematics