Answer:
I can only answer one of them
Step-by-step explanation:
“1. If the top ten nations were randomly selected to march, one after another, into the stadium at the closing ceremonies, in how many ways could the nations have marched in?”
they can March in 4 ways
1. Straight
2. Left
3. Right
4. Round
Answer:
The other answer I saw is the same way that I used to explain in my class as well. But, there's an alternative way to reach the answer as well
First thing that we should know is that if there are 'n' units kept in a row, then there are 'n+1' gaps generated by them. So, what we should understand is that when there is no item there is 1 gap, when there is one item there are 2 gaps, and so on.
Let us use that concept here, with a small variation: the 5 shelves are 5 initial gaps. The first book has 5 choices (5 initial gaps) to go to. Once we have placed this book, there are now 6 gaps on which the 2nd book can be placed. After the 2nd book is placed, there are 7 gaps in which 3rd book can be placed, and so on.
So, the total arrangements will be = 5*6*7*...24 [as there are 20 books] = 24P20
earns 2 points for each correct answer
loses 0.5 points for each incorrect answer
13 correct answers
2 incorrect answers
13 (2)-2(0.5) = 26-1 = 25
Score = 25 points
Answer is 6 if you do 35+1 that gives you 36, the square root of 36 is 6 .6•6=36 so that’s your answer 6
Answer:
Step-by-step explanation:
distance traveled in 1 day = 7/8 mile
so distance traveled in 5 days = 7/8 × 5 = 35/8 = 4.375 miles
hope this helps
plz mark it as brainliest!!!!!!!
