Answer:
67.5
Step-by-step explanation:
If all triangles equal 180 degrees, and one angle is 45 degrees, you get the equation 180 = 45 + x + x which is the same as 180 = 45 + 2x, and instead of that equation, you can use 180 - 45 = 2x. That gives you 135 = 2x, and now divide both sides by 2 and you get 67.5 = x
Answer: B is the correct answer.
x = 0
y = 2
Step-by-step explanation:
4x - y = -2
2x + y = 2
-------------- add the equations
6x = 0
x = 0
substitute x in equation 1
0 - y = -2
y = 2
H(-4)= (-4)^2-1
(-4)^2=16
16-1=15
h(-4)=15
Answer:
(3,-9)
Step-by-step explanation:
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