For a, x is equal to the sum of the measures of the inside angle because the total degrees of a triangle is 180 and the total degrees of a line is 180. Since both the line and the triangle are missing the same amount, x would equal the interior degrees that are listed. I don’t know what m<x means for b, but if it’s asking for the value of x it’s 62+78= 140° which makes the missing interior angle 40°. Hope this helps!
Answer:
- 10x - 11
Step-by-step explanation:
- 3x - 2 - 7x - 9
- 3x - 7x - 2 - 9
= - 10x - 11
hope it helps!
No, Alex is wrong. The correct expanded form would be 100+60+5+.03+.008
