Use the order of operations to simplify the expression. ? 

A.
B.
C.
D.


Answer: D

Mathematics

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Write the augmented matrix for the system of linear equations.

A.
B.
C.
D.

Mathematics

Determine whether the function is periodic. If it is periodic, find the period.f(x) = 4 

A. ?
B.
C. Not periodic
D. 2?

Mathematics

A joint variation is . If , and , find . Round your answer to two decimal places.

A. 48 B. 0.75 C. 1.3 D. 8 E. none of these

Mathematics

Use Lagrange multipliers to maximize the function subject to the following constraint. ? ? ? Assume that x and y are positive. ?

A. ?
B. 5?
C. 69?
D. ?
E. no absolute maximum

Mathematics