10x16 = 160 cm
160x 3.14 = 502.4 cm
502.4 ≈ 500 cm
Answer: I think It's D
Step-by-step explanation: Comment if im right or wrong please
Answer:
a=-0.5
Step-by-step explanation:
Distributive property for left side, difference of squares for right side.
8a-9a^2=-40+36-9a^2
-9a^2 cancels out
8a=-4
a=-0.5