Answer:
3y
Step-by-step explanation:
First find the factors of the terms. You need to then figure out how many factors match.
-9y² = -1 · 3 · 3 · y · y
6y = 2 · 3 · y
3y is the greatest common factor.
I feel it should be 30 because x represents the number of lessons, and 30 is multiplied by that.
No because solids can't transmit heat by convection, and convection only works because of hotter and quicker moving molecules have a lower density so they rise to the surface. But in a solid, the molecules can't move relative to each other. They only vibrate :)
Answer:
A
Step-by-step explanation:
You can subtract normally when the square roots are the same( like in your problem) but the squares stay they same and the numbers on the outside change.
