7-12 is like a negative number so it will be -5. And 13-18 would be -5 also.
Finding the slope using the two points:
The formula for slope is
In this case...
^^^Plug these numbers into the formula for slope...
^^^This is your slope
Hope this helped!
~Just a girl in love with Shawn Mendes
Answer:
x =12
Step-by-step explanation:
The two angles add to 90 degrees
4x+4 + 5x-22 = 90
Combine like terms
9x - 18 = 90
Add 18 to each side
9x -18+18 = 90+18
9x = 108
Divide each side by 9
9x/9 = 108/9
x =12
The number is 20. Work in picture if you want it or want justification of steps:)