1.
6 - 2х² = 6 - 2(-8)² = 6 - 2(64) = 6 - 128 = -122
2.

3.

4.

5.

Answer:
6x + 48
Step-by-step explanation:
multiply each term inside the () by 6
6x + 6*8
Answer:
147
Step-by-step explanation:
The other two options would be more closed and since this angle is open, it is the larger one.
Answer:
-6
Step-by-step explanation:
substitute for x and y in the given equation
x=0
y=-6
let the unknown number be 'b'
y = -4x + b
-6 = 4*0 + b
b = -6
Answer:
91°
Step-by-step explanation:
x and 89 are linear equations
180 - 89 = 91
x = 91