Answer:
2/3
Step-by-step explanation:
2(y+1) =4(5)y + 1-15
2y+2=20y+1-15-2
18y=12
divide both sides by 18
y=2/3
Answer:

Step-by-step explanation:
The inverse of a function, is the function or rule formed by reflecting the line over y=x. This means essentially that all (x,y) values from the original function switch to (y,x).
(x,y)--->(y,x) in the new function.
If the function has points (-3,4) and (5,-2) then the inverse has points (4,-3) and (-2, 5).
We can find the equation of the inverse by switching x and y in the equation and solving for y.
This means that
becomes
. We now solve for y through inverse operations.


Answer:
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Step-by-step explanation:
Step-by-step explanation:
Given
(-7) + ( -8)
= -7 - 8
= -15
Hope it helps :)
Yes it is 30° because they are vertical angles