You have 9 gymnasts and want to make a team of 4. Say one out of the nine is chosen; eight are left. Take one, then seven, and two more can be chosen. Keep doing this and your team is full. So, it's 9*8*7*6 which equals 3,024, since order doesn't matter.
Answer:
I would try to help but there is no picture
The answer u r looking for 18 empty squares in a row
Answer:
Step-by-step explanation:
Multiply 3.5 and 2 together, obtaining 7.
Then add the exponents -6 and -4, obtaining -10.
The product is thus 7·10^(-10), or, after simplification,
7·10^(-9), or
7
----------
10^9
