Answer:
A. 48r² - 10r + 3
Step-by-step explanation:
Solve (6r - 1) × (-8r - 3)
1. <u>Distribute 6r and -1</u> (into -8r - 3):
-48r² - 18r + 8r + 3
2. <u>Combine like terms</u> (-18r and 8r):
-48r² - 10r + 3
So, your answer is -48r² - 10r + 3
14 mm
Just as the little side is 1/4 of the larger side , so is the perimeter
1/4 * 56 = 14 mm
measure of supplementary angle 180-69.3=110.7
