Answer:
m = 9
It means that you are multiplying each of the values inside the parentheses by 2.
Step-by-step explanation:
2(m + 2) = 22
2m + 4 = 22
2m + 4 - 4 = 22 - 4
2m = 18 -Divide both sides by 2
m = 9
Answer:
4ab
Step-by-step explanation:
(a+b)^2-(a-b)^2
=a^2 + 2ab + b^2 -(a^2 - 2ab +b^2)
=a^2 + 2ab + b^2 - a^2 + 2ab - b^2
=2ab + 2ab
=4ab
Answer:
Sylvia=16
brother=8
Step-by-step explanation:
8+7=15
16-1=15
Here you go, hope I helped.
Answer:
<u>There are 380 ways that 1st and 2nd place can be determined in the race</u>
Step-by-step explanation:
There are 20 possibilities for determine the 1st place
There are 19 possibilities for determine the 2nd place
Number of ways that 1st and 2nd place can be determined = 20 * 19
Number of ways that 1st and 2nd place can be determined = 380
