X+y=6 --> Equation 1
x-y=8 --> Equation 2
Equation 1 - Equation 2 =
2y =-2
y = -1
x+y = 6 --> Plug y value into equation
x + (-1) = 6
x-1 = 6
x = 7
y = -1, x = 7
Answer:
Step-by-step explanation:
it is an adjacent/linear pair
Parallel are two equations that have the same slope but different y intercepts.
If the y intercepts are also the same, it is just the same line.
Answer:
cosA/cosB = 1
Step-by-step explanation:
We know that cos = Adjacent Side/hypothenuse.
Then Cos(A)= AC/AB = 3/4.24 = 0.707
Cos(B) = BC/AB = 3/4.24 = 0.707
Then cosA/cosB = 0.707/0.707 = 1
Answer:
9
Step-by-step explanation:
45/5 = 9