Answer:
A triangle is a total of 180 degrees
So to find what x equals we are going to add up all the degree measurements and make them equal to 180
3x+2x+20+4x-20=180 (combine any like terms on the left)
3x+2x+4x+20-20=180 (3x+2x+4x=9x, 20-20=0)
9x=180 (divide both sides by 9)
x=20
Hope this helps ;)
Step-by-step explanation:
In point-slope form, the equation of the line is
.. y -k = m(x -h) . . . . . . for slope m and point (h, k)
You have m = -7/2 and (h, k) = (8, -28), so the point-slope equation is
.. y -(-28) = (-7/2)*(x -8)
.. y +28 = (-7/2)x +28 . . . . simplify
.. y = (-7/2)x . . . . . . . . . . . . subtract 28
To put this into standard form, we can multiply by 2, then add 7x.
.. 2y = -7x
.. 7x +2y = 0 . . . . . . . . . . . the standard form equation you want
I am not good with this math either so my guess would be to choose C for all numbers shown are positive
Answer:
-2
Step-by-step explanation:
Every point would flip over the y axis the same distance it is from the y axis now, but just on the other side of the y axis.
In the original equation, when y = 0, x is 2, so when we flip it over the y axis, it is now at -2 when y = 0.
14m because 3*4 = 12 and 1*1 = 1 and 1 + 1 + 12 is 14