The following matrix is a reduced augmented matrix obtained from a system of equations.The solution to the system is:

A.
B.
C.
D. no solution


Answer: B

Mathematics

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Solve the equation.-2b = 30

A. {-32} B. {1} C. {32} D. {-15}

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Graph the linear inequality.y ? 6

A.

B.

C.

D.

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The figure shows the graphs of the cost and revenue functions for a company that manufactures and sells binoculars. Use the information in the figure to answer the question.Is there a profit when 649 binoculars are produced?

A. Yes B. No

Mathematics

Evaluate the following expression. (? ? ?n, where n is a whole number) ? ?

A. 5 sec 4? B. - 5 csc 4? C. 5 csc 4? D. - 5 sec 4? E. 5 cot 4?

Mathematics