3 years ago

Which ratio shown below is NOT equivalent to − 15 23

Mathematics

1 answer:

Talja [164]3 years ago

4 0

Answer:

what is the answer below

Step-by-step explanation:

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1. Match the polynomial identity to the correct answer.

Katen [24]

Answer:

$a: (a-b)(a+b);b: (a-b)(a^{2}+ab+b^{2}); c: (a^{2} +2ab+b^{2}); d: (a+b)(a^{2}- ab+b^{2})$

Step-by-step explanation:

Given the expressions all that is required is to expand them (using the distributive property) to see which answers they match up to:

For a: $(a-b)(a+b)=a^{2} +ab-ab-b^{2} =a^{2}-b^2$

For b: $(a-b)(a^2+ab+b^2)=a^3+a^2b+ab^2-a^2b-ab^2-b^3=a^3-b^3$

For c calculate the square of a sum: $(a+b)^2=a^2+ab+ab+b^2$

(add like terms) c: $a^2+2ab+b^2$

For d: $(a+b)(a^2-ab+b^2)=a^3-a^2b+ab^2+a^2b-ab^2+b^3$ $=a^3+b^3$

5 0

3 years ago

Shelly has a roll of fabric and decides to make some scarves for her friends. The roll contains 623

swat32

Total length of the fabric is $6\frac{2}{3} =\frac{20}{3}$

We need to find the number of scarves can she make if she needs 5/6 of a yard for each scarf.

Let she needs x scarves. So, ATQ

Hence, she can make 8 scarves.

5 0

2 years ago

How many groups of 3 can go in to 57

Bad White [126]

Answer:

Step-by-step explanation:

If you divide 57 by 3, the answer you will get is 19. Hope this helped!

4 0

3 years ago

PLS HELP with #2 its only that one question 31 brainlys

Mamont248 [21]

Answer:

the answer is 1

$56 in savings and $4 per week

4w + 56

Step-by-step explanation:

5 0

3 years ago

What is the answer to 5x5

poizon [28]

Answer:

Step-by-step explanation:

5x5

5+5+5+5+5

10+10+5

20+5

7 0

3 years ago

Read 2 more answers