Answer:
10c^3 -30c^2 + 10c -30
Step-by-step explanation:
2c(5c^2+5) - 6(5c^2+5)
= 10c^3 + 10c - 30c^2 - 30
= 10c^3 -30c^2 + 10c -30
Answer:
2
Step-by-step explanation:
Answer:
Direct.
Step-by-step explanation:
A varies directly as the square of r.
It's both. Look at the gradients between one point then the one after it. It stays constant from one to the next. (Gradient is 2 by the way: (5-3)/(2-1))
