Writing the system of equations as a matrix equation solve the system of equations by using the inverse of the coefficient matrix.


Mathematics

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Find the functions , , , and 

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What will be an ideal response?

Mathematics

Clear fractions then solve by substitution. +  = 4 - 2y = 21

A.
B. ?
C. {(-6, 8)}
D. {(6, -8)}

Mathematics

Divide.(2r3 - 8r2 - 8r - 10) ÷ (r - 5)

A. r2 + 2r + 2
B. 2r2 - 2r - 2
C. 2r2 + 2r + 2
D. 2r2 + 2r +  

Mathematics

Find the slope of the line.x = 2

A. m = 0 B. undefined slope C. m = -2 D. m = 2

Mathematics