Answer:
7 girls can go in the first place, 6 in the second, etc.
7! ways is the number of ways to arrange the girls.
likewise the boys can be arranged in 7! ways
The total number of ways becomes 7! * 7!
7! * 7! = 25,401 600 ways
Answer:
<u>The Answer in Exact Form:</u>
-3/22
<u>In Decimal Form:</u>
-0.136
Step-by-step explanation:
-
÷5
=-3/22
Answer:
21 cm²
Step-by-step explanation:
A = (b + B)×h/2
= (5 + 9)×3/2
= 14×3/2
= 7×3
= 21 cm²
So 1 hour= 60 minutes
60+25= 85 minutes
Now we should subtract the 42
85-42=43