Answer:
2x+1
Step-by-step explanation:
3x-4-x+5 = 3x-x+5-4 = 2x+1
Answer: 192
Step-by-step explanation: 24 • 8
Inequalities are number sentences that compare two numbers. sometimes we use variables when writing inequality’s.
Answer:
The answer is A
Step-by-step explanation:
(I'm not 100% sure though, hope this helps.)
Answer:
10626 different arrangements
Step-by-step explanation:
As we have a total of 23 students and we want to form groups of 3, where the order of the 3 students matters, we can solve this problem using a permutation of 23 choose 3.
The formula for a permutation of n choose p is:
P(n,p) = n! / (n-p)!
So, using n = 23 and p = 3, we have:
P(23,3) = 23! / (23-3)! = 23! / 20! = 23 * 22 * 21 = 10626
So we have a total of 10626 different arrangements of first, second and third place.