The picture is a bit blurry but the perimeter of a shape is the lengths added.
(4a - 2b) + (7a + 3) + (9a - 4) = perimeter, I added the sides together
Combine like terms to get:
4a + 7a + 9a = 20a
-2b is left along becuase there are no other like terms
3 - 4 = -1
The perimeter is 20a - 2b - 1
Answer:
2
Step-by-step explanation:
Answer:
58
Step-by-step explanation:
Complementary angles add up to 90
Za + Zb = 90
32 + Zb = 90
By simple algebra:
Zb = 58
Answer:
-2/3
Step-by-step explanation:
The slope is -2/3 because the slope formula, y2-y1/x2-x1
