3 years ago

Check Up 2 (continued)

Mathematics

1 answer:

o-na [289]3 years ago

6 0

the answer is c.148 you welcome

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Rewrite the following differences of squares as a product of two integers. (a). 81 − 1 (b). 400 − 121

Hatshy [7]

Answer:

(a) 10×8

(b) 31×9

Step-by-step explanation:

We have given that

(a) 81 - 1

We have to write this in form of product of two integers

We know the algebraic equation $a^2-b^2=(a+b)(a-b)$

As 81 -1 can be written as $9^2-1^2$

So $9^2-1^2=(9+1)(9-1)=10\times 8$

(b) We have given 400 - 121

We have to write this in form of product of two integers

We know the algebraic equation $a^2-b^2=(a+b)(a-b)$

As 81 -1 can be written as ${20}^2-{11}^2$

So ${20}^2-{11}^1=(20+11)(20-11)=31\times 9$

4 0

3 years ago

PLEASE HELP DUE IN 1 HOUR IT WILL GIVE YOU 36 POINTS

DochEvi [55]

I got this, I hope it solves your question

6 0

3 years ago

Read 2 more answers

Can someone help please?

Ilya [14]

Answer:

Step-by-step explanation:

half of 36 is 18

so you would have an improper fraction and then turn it into 2

7 0

3 years ago

12 + 9/3 exponent 2<br><br> What is the answer?

ira [324]

9/3 = 3
3 exponent 3 = 27.

27 + 12 = 39

3 0

4 years ago

Read 2 more answers

David is packing bundles of 3 inch by 5 inch cards,face up,into a square box. He places the cards side by side so that there is

Elena-2011 [213]

Answer: 15 inches

Step-by-step explanation:

Since the box must be square, we find the Lowest common multiple of 3 and 5, which is 15

8 0

3 years ago