Give the coefficient matrix of the follwoing system 9×2 +2 × y - 6 x 2 x z= 9
9×2 - 9 × y + 3 x 2 x z = 9

Adriveway is 60-feet long by 6-feet wide. the length and width of the driveway will each be increased by the same number of feet. the following expression represents the perimeter of the larger driveway: (x + 60) + (x + 6) + (x + 60) + (x + 6) which expression is equivalent to the expression for the perimeter of the larger driveway? a) 2(x + 66) b) 4x + 33 c) 4(x + 33) d) 4(x + 132)

Complete the equation of the line through (−10,3) and (−8,−8). use exact numbers.

If chord ab is congruent to chord cd, then what must be true about ef and eg?