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4 years ago

PLEASE HELP!!! 50 POINTS AWARDED!!

Mathematics

2 answers:

qaws [65]4 years ago

6 0

Answer:

Below.

Step-by-step explanation:

1. No because there is a one-to-many relation in the diagram ( 8 maps to 3 and also to 4.

2. Yes. It is a one-to-one mapping.

3. Yes. It consists of on-to-one and many to one mapping.

4. No. Because it fails the vertical line test.

5. No. As number 4.

6. Yes . this passes the vertical line test.

7. Yes.

8. No. Input 1 maps to output 4 and output 7.

9. Yes.

10. No. Because of the (3, 7) and the (3, 6).

11. No , because 1 maps to 8, 2 and 7.

12. Yes.

sladkih [1.3K]4 years ago

5 0

Answer:

answers below

Step-by-step explanation:

1. no

2. yes

3. no

4. yes

5. no

6. yes

7. no

8. no

9. no

10. no

11. no

12. yes

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Find equivalent expressions

jeka57 [31]

Answer:

How to Multiply Fractions With Common Denominators

Updated April 24, 2017

By Pharaba Witt

Algebra strikes fear in the hearts of many both grown and still in school. Finding equivalent expressions is not as complicated or as daunting as you might think. It comes down to taking the distributive property and working with it to find another way to say the same thing, mathematically.

Using Distributive Property

Start with an algebraic expression. Using the example 2x(3y + 2) will make it easier to walk through the process.

Distribute the multiple 2x throughout the rest of the equation. This means multiplying 2x by 3y and by 2. Multiply 2x and 3y and you get 6xy. Multiply 2x by 2 and you get 4x.

Complete the equation by putting it back together. This means taking the two new numbers and keeping the function in the middle the same: 6xy + 4x. This is your equivalent expression. You can write the two expressions to show equality: 2x(3y + 2) = 6xy + 4x.

Using Factoring

Identify the common factors in the parts of the equation. Breaking down the equation might be necessary to find an equivalent expression. If you were given the expression 6xy + 4x, you would need to work it the other direction by taking out the common numbers. In this case both numbers are divisible by 2.

Take out the first common number: 2(3xy + 2x). Now you see there is still another common factor, x.

Take out additional common factors: 2x(3y + 2). This gives you the equivalent expression. Again you end with 6xy + 4x = 2x(3y + 2).

Step-by-step explanation:

3 0

3 years ago

If A and B are sets and AUB=A∩B ,then which of the following true for A and B

stich3 [128]

Answer:

A=B

Step-by-step explanation:

If AUB=A∩B then both A and B contain the values both have hence they're equal

6 0

3 years ago

A recipe calls for 2 1/2 cups of flour to make 24 cookies how many cups of flour would be required to bake 15 dozen cookies

Citrus2011 [14]

15 dozen = 180 cookies

180 ÷ 24 = 7.5

7.5 x 2.5 = 18 3/4 cups of flour

7 0

4 years ago

Read 2 more answers

I need help In this please

Shalnov [3]

The answer is x < 12

1) Minus 6 from both sides of the inequality

2) Multiply both sizes by 4

3) Divide both sides by -3

4) Swap the direction of the inequality (You always do this when you multiply/divide both sizes of an inequality)

5) You should have x < 12

3 0

4 years ago

The number of goals scored by a hockey team in each of its first 10 games is 2, 4, 0, 3,4, 1, 3, 1, 1, and 5. Find the mean numb

Artemon [7]

The mean is the average number from the group of numbers.
In this case, the average of the numbers 2, 4, 0, 3, 4, 1, 3, 1, 1, 5 is 2.4.
This is discovered by adding all the numbers together (which in this case is 24) and dividing that number by the amount of numbers in the group (in this case it's 10).
24 ÷ 10 = 2.4
Therefore the mean is 2.4.

6 0

4 years ago