Answer:
B. 91 degrees
Step-by-step explanation:
supplementary angles = 180 degrees, so 180-89 = 91
Answer:-12
Step-by-step explanation:
Answer:
c.
Step-by-step explanation:
From the last row in the matrix z = 1.
From the second row:
y + 5z = -4
y = -4 -5(1) = -9.
From the first row:
x + -1 = -3
x = - 3 + 1
x = -2.
-48 plugging in everything and using PEMDAS it should be -48
Answer:
D
Step-by-step explanation:
x = 2 and y = -7
Plug those values into the equation:
2(2) - (-7) = 11