Find a unit normal vector to the surface  at the point .
?

A.
B. ?
C. ?
D. ?
E. ?

Answer: C

Mathematics

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Factor, if possible.15y2 + 22y + 8

A. (3y + 2)(y + 4) B. Prime polynomial C. (3y - 2)(5y - 4) D. (3y + 2)(5y + 4)

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Mathematics

Solve the problem.The cost of producing t units is C = 3t2 + 7t, and the revenue generated from sales is R = 4t2 + t. Determine the number of units to be sold in order to generate a profit.

A. t > 7 B. t > 8 C. t > 6 D. t > 0

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Mathematics

Round as indicated.3.4056 to two decimal places

A. 3.406 B. 3.40 C. 3.41 D. 3.4

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Mathematics

Perform the row operations on the matrix and write the resulting matrix.Replace R2 by R1 + R2 

A.

B.

C.

D.

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Mathematics