9514 1404 393
Answer:
see below
Step-by-step explanation:
The augmented matrix is the 3×4 matrix of the coefficients in the standard-form equations.
![\left[\begin{array}{ccc|c}5&-4&-6&-3\\1&-3&1&-1\\-3&-6&7&1\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7Cc%7D5%26-4%26-6%26-3%5C%5C1%26-3%261%26-1%5C%5C-3%26-6%267%261%5Cend%7Barray%7D%5Cright%5D)
Slope intercept: y = mx + b
Y = 5x + b
10 = -20 + b, b = 30
Equation: y = 5x + 30
Answer:
13.8
Step-by-step explanation:
8+4+5=17
26×2=52
17+52=69
69×.20=13.8
Answer:
x = 104
Step-by-step explanation:
The exterior angle is equal to the sum of the opposite interior angles
24+x = 128
Subtract 24 from each side
24+x-24 =128 -24
x =104