3k + 10 = 22
3k = 22-10
3k = 12
k = 12/3
k = 4
Answer:
Step-by-step explanation:
Both equations have -7y. You can eliminate them by subtracting one equation from the other:
Multiply equation 1 by -1, then add it to equation 2:
-2x + 7y = 74
3x - 7y = -83
———————
x = -9
2x - 7y = -74
2(-9) - 7y = -74
-7y = -56
Y = 8
(x,y) = (-9, 8)
What do you need help on, I don’t see the picture ?????
Answer:
Approximate answer: 
Step-by-step explanation:
Denote the projection of point 
onto side 
as 
.
.
Next we should put everything together in area formula for trapizium:
