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

Helppppppppppppppppppppppppppppppppppppppppppppp

frutty [35]

Answer:

Step-by-step explanation:

10 cubic feets volume is equivalent to 25.85 inches.

5 0

3 years ago

Read 2 more answers

What is the quotient property of exponents?

STALIN [3.7K]

Answer:

when you divide powers with the same base, you can just subtract the exponents

6 0

4 years ago

Read 2 more answers

Find all the missing elements:

Evgesh-ka [11]

Answer:

a=10.8; c=4.3

Step-by-step explanation:

The sum of all the angles in a triangle is 180 degrees.

Two of the angles are given as 40 deg and 120 deg.

Subtract the measures of both from the sum to get the last angle:

180-40-120=20; ∠C=20°

Using Law of Sines: $\frac{a}{sinA}=\frac{b}{sinB}=\frac{c}{sinC}$

$\frac{a}{sin120}=\frac{8}{sin40}; a=\frac{8*sin120}{sin40}; a=10.77837084$

$\frac{c}{sin20}=\frac{8}{sin40}; a=\frac{8*sin20}{sin40}; c=4.25671109$

8 0

3 years ago

The screen on Brianna's new cellphone is 2.85 cm long. What mixed number represents this length?

mel-nik [20]

Answer:

2 17/20

Step-by-step explanation:

4 0

4 years ago

Read 2 more answers

A process is operating at 0.15 fraction nonconforming. We desire to catch a shift to 0.19 fraction nonconforming on the fraction

Lena [83]

Answer:

Sample size>= 743

Step-by-step explanation:

7 0

3 years ago