m∡A = 70º
1) Considering that the Sum of the interior angles within a triangle is always 180º
2) We can write the following, and solve for x
x+80 + x +80 +40 = 180
2x +160 +40 = 180
2x + 200 = 180
2x =180-200
2x= -20
x=-10
3) So since angle A = x +80, we can plug it into that the value of x
m∡A = x +80º
m∡A=-10+80
Answer:
Step-by-step explanation:
Start with y = mx + b. Subst. -34 for m and 5 for b: y = -34x + 5
2 hours, 9 minutes (and 19 seconds if u wanna be exact)
