4y = -23 + 39
4y = 16
y = 4
Sub y = 4 into equation 2
7x + 6(4) = -39
7x + 24 = -39
7x = -39-24
7x = -63
x = -9
x = -9
y = 4
Hey there!
A quadrilateral has 360 degrees. So add all the degrees together to 360. 9x+1+5x-12+8x+61+90=360. 90 degrees is in the bottom left corner. Combine like terms. 22x+140=360. Subtract 140 from each side. 22x=220. Divide 22 on each side to get x=10. Plug in 10 for x in angle D. 5(10)-12=38. The measure of angle D is 38 degrees.
I hope this helps!
14 hundreds, 10 tens, and 2 ones.
Answer:
1) C. (3, 5)
2) B. Counterclockwise turn 90 degrees about the origin
3) A. C' (0, -2)
Step-by-step explanation:
i got u bro
Answer:
no, the numbers do not add up, nor does the triangle have any right angles
