Find the limit.If  = 4, find .

A. 8
B. 2
C. 16
D. 4


Answer: A

Mathematics

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Convert as indicated.68.40 m to millimeters

A. 68,400 mm B. 6840 mm C. 0.684 mm D. 0.0684 mm

Mathematics

Perform the operation indicated. Simplify. + 

A.
B.
C.
D.

Mathematics

Find the second-order partial derivative.Find fxx, where f(x, y) = x4y5 + x5y.

A. 20y3 B. 12x2y5 + 20x3y C. 4x3y5 + 5x4y D. 12x2y5 + 20x3

Mathematics

The monthly sales S for a product is given by, where x is the number of months that have passed since the end of a promotional campaign. How many months after the end of the campaign will sales drop below 6,000, if no new campaign is initiated? Round to two decimal places. ?

A. 2.65 months B. 4.01 months C. 4.97 months D. 6.17 months E. 7.38 months

Mathematics