sunshinycoast10 sunshinycoast10
  • 21-07-2020
  • Mathematics
contestada

how many 4-digit numbers can be formed using only the digits 9, 8 and 7? :p

Respuesta :

tramserran
tramserran tramserran
  • 21-07-2020

Answer: 81

Step-by-step explanation:

First digit  and    Second digit    and    Third digit    and    Fourth digit

3 choices  x       3 choices          x        3 choices      x       3 choices     = 81

Answer Link

Otras preguntas

The motivation behind the new imperialism was to
Why might a writer use parallelism or emotion diction?
Water difference between glacier and geyser
simplify sqrt 144x^2
Wes rode his bike 30 miles in 3 hours. What was his average rate of speed?
What noise is used to signify someone dying of an alcohol related crash?
Gilbert's employer matches 12% of Gilbert's contributions to his 401(k) plan. If Gilbert's employer contributed $600 to the plan last year, how much did Gilbert
for the equation x/3=15 a student found the value of x to be 5.explain the errorwhat is the correct answer?
which of the following elements has the same valence electron configuration as phosphorus (p)
Have you eaten lunch yet subject and verbs