Solve the system using the inverse of the coefficient matrix of the equivalent matrix equation. 3x + 5y = -102x + 4y =  -6

A. {(5, -1)}
B. {(-1, 5)}
C. {(1, -5)}
D. {(-5, 1)}


Answer: D

Mathematics

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A.  in.
B.  in.
C.  in.
D.  in.

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Solve by the method of elimination by substitution. x - 5y = 302x - 5y = 25

A. x = -4, y = -8 B. x = -5, y = -7 C. x = -4, y = -5 D. Inconsistent

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Multiply and express the product in lowest terms.-  ? 

A.
B.
C.
D.

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Determine algebraically whether the function is even, odd, or neither even nor odd.f(x) = 

A. Even B. Odd C. Neither

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