Answer:
Friction is a force that opposes motion between any surfaces that are touching. Friction occurs because no surface is perfectly smooth. Rougher surfaces have more friction between them. ... Friction produces heat because it causes the molecules on rubbing surfaces to move faster and have more energy
Answer: isolate the variable
Step-by-step explanation:
Put y=0
-7/5x-0=7
x=7*-5/7=-5
x intercept=-5
put x=0
-0-4y=7
y=-7/4
y intercept =-7/4
5x - 5 = x + 11
5x = x + 16
4x = 16
x = 4
Answer:
C)17
Step-by-step explanation:
5+y+8
let y=4
5+4+8
9+8
17
