Answer:
this is already the answer
Step-by-step explanation:
Answer:
150
Step-by-step explanation:
The exterior angle is equal to the sum of the opposite interior angles
<1 + <2 = <3
3x+11 + 3x+19 = 7x+10
Combine like terms
6x+30 = 7x+10
Subtract 6x from each side
6x -6x+30 = 7x-6x+10
30 = x+10
Subtract 10 from each side
30-10 = x+10-10
20 =x
We need to find angle 3
<3 = 7x+10
= 7(20)+10
= 140+10
= 150
Answer:
Here you go :)
Step-by-step explanation:
X^2 + 8x + 7= 0
(X+7)(X+1)
X=-1,-7
Darn it i was looking for the same thing
