Answer:
a) 122,523,030
b) 72,930,375
c) 223,149,655
d) 100,626,625
Step-by-step explanation:
Consider that there are 5 vowels and 21 consonants in the English alphabet
a) exactly one vowel?
There a 6 possible positions for that vowel (6)
There are 5 ways to choose 1 vowel. (5)
There are 5 other positions to place one of the 21 consonants. (21^5)
b) exactly two vowels?
There are C(6,2) possible positions for both vowels (C(6,2))
There are 2 positions to choose a vowel out of 5 vowels. (5^2)
There are 4 other positions to place one of the 21 consonants. (21^4)

c) at least one vowel?
The number of possibilities that the string contains at least one vowel is the number of total possible outcomes minus the number of outcomes with only consonants:

d) at least two vowels?
The number of possibilities that the string contains at least two vowels is the number of possibilities that the string contains at least one vowel minus the number of possibilities that the string contains exactly one vowel:

Answer:
-2
Step-by-step explanation:
Opening brackets,
-3+1=-2
Answer:
top right
Step-by-step explanation:
If you imagine yourself building with that model you can see its that one
The court is the shape of a rectangle, so that means 2 sides are 50 feet and 2 sides are 84 feet
if a player ran around the edge he ran 50 + 50 + 84 + 84 = 268 feet total