Find the requested expression for the function.If x represents the size of the order to replenish an inventory of computers, then the annual inventory cost is given by the function  Simplify the expression for c(x) by performing the indicated addition.

A. c(x) = 
B. c(x) = 
C. c(x) = 
D. c(x) = 


Answer: C

Mathematics

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Find the derivative of y with respect to x, t, or ?, as appropriate.y =  

A.
B.
C.
D.

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Find the tangential and normal components of the acceleration.r(t) = (t - 7)i + (ln(sec t) - 8)j + 8k, -?/2 < t < ?/2

A. a = (cos t)T + (cos t)N B. a = (csc t)T + (sec t)N C. a = (sec2 t)T + (cos t)N D. a = (sec t tan t)T + (sec t)N

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Divide. Express the quotient as a mixed number in lowest terms. 2 ÷ 1

A. 2 
B. 1 
C. 1 
D. 1

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Find the length s. Round the answer to three decimal places.

A. 11.519 yd B. 10.367 yd C. 12.671 yd D. 9.215 yd

Mathematics