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Margarita [4]
3 years ago
14

How many three-digit numbers can be written using digits from the set {2, 3,4, 5, 6} without repeating digits?

Mathematics
1 answer:
zlopas [31]3 years ago
3 0

Answer:

I think you mean ‘repetition’ of digits is not allowed when you say ‘terrain' of digits is not allowed. If it is so, I will proceed further.

Three digit numbers have Hundreds place, Tens place and Units place. There are six digits, 1,2,3,4,5 and 6 are available. The Hundreds place can be filled up by any one of these 6 digits and can therefore be filled up in 6 ways. Since repetition of digits is not allowed we are left with 5 digits to fill up the Tens place. So Tens place can be filled up in 5 ways. Using the same argument we can fill up the Units digit in 4 ways. Hence we can form (6)(5)(4) = 120 numbers of three digits using the digits 1,2,3,4,5,6 without repetition.

Step-by-step explanation:

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When labeling a pre-image and it's image, we use a small tick mark. It's called a(n):
IgorLugansk [536]

Answer:

Prime

Step-by-step explanation:

If we have a point on a pre-image, we can have it labelled as A(x,y)

Now, we can write this as the image

To write this as the image, we simply have to add a mark on the A

This mark is at the upper right

We have it as A’ (x,y)

The part added is called a prime

4 0
3 years ago
Read 2 more answers
Select all ratios that are in their simplest form. a29:26 b4:28 c25:10 d28:5 e12:19
xxTIMURxx [149]

The correct answer is Option A , D , E.

<h3>What is meant by ratio?</h3>

A ratio in mathematics is a comparison of two or more numbers that shows how big one is in comparison to the other.

<h3>What is meant by ratio in simplest form?</h3>

Ratio in it's simplest form means when the ratio can't be simplified anymore  by cancelling out the common factors.

The ratio in Option(A) can't be simplified anymore because 29 is a prime number.

The ratio in Option(B) can be simplified to 1 / 7.

The ratio in Option(C) can be simplified to 5 / 2.

The ratio in Option(D) can't be simplified.

The ratio in Option(E) can't be simplified because 19 is prime number.

Hence, the correct answer is Option A , D , E.

Learn more about ratios on:

brainly.com/question/2328454

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8 0
2 years ago
What is the domain of the function f(x) = -(x - 7 )^2 + 4
Veronika [31]

Answer:

A

Step-by-step explanation:

8 0
4 years ago
How are u supposed to find the area without knowing what x is?
aliina [53]
You might want to look up some webstite that explains how to do it. thats how i learned area. I know the answer but i like to draw it out
5 0
4 years ago
Find the value of x. Explain your answer.
KatRina [158]

Answer:

x = (-9)

Step-by-step explanation:

From the diagram, we see that the triangle is an isosceles triangle. Since it is an isosceles triangle we know that the angles at the base of an isosceles triangle are equal to each other, so the angles that is not marked will be equal to m∠2. Since now we know that, we can make the following equation...

m∠2 + m∠2 + 84 = 180

Now we solve it and get...

2(m∠2) = 180 - 84

2(m∠2) = 96

m∠2 = 48

Now we substitute m∠2 with x + 57, and get...

m∠2 = 48

x + 57 = 48

x = 48 - 57

x = (-9)

5 0
3 years ago
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