3 years ago

How many 4 digits codes can be formed with odd numbers without repetition? 0 is not allowed.

Mathematics

1 answer:

Sliva [168]3 years ago

3 0

9514 1404 393

Answer:

120

Step-by-step explanation:

The number of permutations of 5 things taken 4 at a time is 120.

There are 5 odd digits. You want to choose 4 of them, then arrange those 4 in all possible ways. There are 5·4·3·2 = 120 ways to do that.

120 4-digit codes can be formed using odd digits with no repetition.

You might be interested in

Find the value of m and b for the equation 0=-9x+5y+25

lukranit [14]

Answer:

X= -5

Y=-2.7

Step-by-step explanation:

YOU DO THIS BY SUBTRACTING 25 ON THE RIGHT SIDE TO THE LEFT ONLY LEAVING YOU WITH VARIABLES.

THEN YOU SUBSTITUTE ZERO INTO Y TO FIND X THEN SUBTITUTE ZERO INTO X TO FIND Y

BTW SUBSTITUTE ONE INTO THE VARIABLE YOU ARE FINDING

8 0

3 years ago

Hii, can someone please help? I'm giving BRAINLIEST

Nookie1986 [14]

Answer:

It would Be C I hoped this helped

5 0

3 years ago

Read 2 more answers

A.You are told that a company's profits this year are 120% of their profits from last year. If their

Elden [556K]

Answer:

29,160,000

Step-by-step explanation:

24,300,000x120%=29,160,000

4 0

4 years ago

Which is the graph of y=3/4 x -3?

Delicious77 [7]

It would be graph A.

6 0

3 years ago

Read 2 more answers

Shania is making a scale diagram of the badminton court at the community center. She uses a scale of 1 centimeter to 0.5 meter t

docker41 [41]

1m = 100cm

1cm → 0.5m

1cm → 0.5 · 100cm = 50cm

The scale: $\dfrac{50}{1}=50$

length = 26.8cm · 50 = 1,340cm = 13.40m

width = 12.2cm · 50 = 610cm = 6.10m

The area of the court:

A = 13.40 · 6.10 = 81.74 m²

8 0

4 years ago