Answer:
10) x=90
9) x=20
Step-by-step explanation:
x+2x=180
3x=180
divide 180 by 3x=90
straight lines add up to 180 degrees.
9) x+8x=180
9x=180, thus 20.
Answer:
8. x= y=
-1 -2
0 1
1 4
4 13
10. x= y=
-10 -4
0 2
5 5
Step-by-step explanation:
Answer:-2
Step-by-step explanation:
g=-5(3)+13
=-15+13
=-2
Hope this helps
6. If you take 216 and cube root it and you get six. and just to check you can do 6*6*6. 6*6=36 36*6=216.
Hope this helped!