Answer:
3 is the missing answer.
Step-by-step explanation:
7 * 3 = ( _ * 3) + ( 4 * 3)
21 = ( _ * 3) + 12 -Multiply 4 * 3 and 7 * 3
9 = _ * 3 -Divide both sides by 3
3 = missing number
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
It would be D, (-2, -3), which is in the 3rd quadrant.
We divide the pennies 100 to convert pennies to dollar
1 pennies= 1/100 dollar
Then we will convert 6.02×10∧23 p to dollar
=1 dollar/100 pennie ×6.02×10∧23
= 6.02×10∧21
The total men and women and children in 250 m
=25×108
6.02×10∧21/2.5×10∧8
= 2.408×10∧13
