Answer:
4.02%
Step-by-step explanation:
Answer:
The product is the difference of squares is 
Step-by-step explanation:
Explanation
- The given expression is (m-7)(m+7).
- We have to multiply the given expression.
- Square the first term m. Square the last term 7 .

Answer:
0.08 or 8%
Step-by-step explanation:
to find probability, number of left handed/total
this would be (9+3)/(90+60), which simplifies to 12/150 = 0.08.
Answer:
2:12 or 1:6
Step-by-step explanation:
there are 12 students. you and your friend are 2 of the 12. so it would be a 2:12 chance that you or your friend would get picked. unless if you simplify which then it would be a 1:6 chance that either of you would get picked.
What we are going to do with this problem is combine all the like terms.
so to begin, we notice that there are two numbers with a^2 involved, and two numbers with an a.
thus:
8

+(-3

is going to equal
5
because adding a negative is just like subtracting.
then we move on to (6a)-(2a) giving us 4a
5 is the only term that stays the same because there are no other similar terms.
last but not least, put the equation together!
answer: 5
+4a+5