How many 4-digit numbers can be formed using only the digits 9, 8 and 7? :p
1 answer:
Answer: 81
<u>Step-by-step explanation:</u>
First digit and Second digit and Third digit and Fourth digit
3 choices x 3 choices x 3 choices x 3 choices = 81
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Answer:
2094.4yds cubed
Step-by-step explanation:
V=pi*r^2*h/3
V=pi*100*20/3
V≈2094.4
Ok so
24=30%
find 100%
24=30%
diivde by 3
8=10%
multiply 10
80=100%
answe ris 80 coins
So basically 5x+5/(x)(x)-2. the integers involving vertical movement I think would be 5 and -2
