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13x – 14y - 15z = 25
-12x + 13y + 15z = -22
11x – 7y - 14z = 15
Inverse matrix

Determine the quotient and remainder when (6a3)+11a2-4a-9) is divided by (3a-2) express your answer in the form q(a) + r(a)/d(a)

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !

Complete each statement from the information given and the triangle criterion you used. if the triangles cannot be shown to be congruent, leave the box for the second triangle blank and choose for reason “cannot be determined.” carbon - regular hexagon. ∆can ≅ ∆ by