2 years ago

Look at screenshot for more info

Mathematics

1 answer:

podryga [215]2 years ago

8 0

C because I just did that

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Keith buys an item for $629. He gives the cashier a $50 bill. How much money should Keith get back?

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None

Step-by-step explanation:

This doesn't really make sense, If the item is 629$ and Keith only gives 50$ Keith is the one who should pay.

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Use the distributive property to simplify each expression (2b - 10) 3.2

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Use the identity (x2+y2)2=(x2−y2)2+(2xy)2 to determine the sum of the squares of two numbers if the difference of the squares of

fomenos

Answer:

The sum of the squares of two numbers whose difference of the squares of the numbers is 5 and the product of the numbers is 6 is 169

Step-by-step explanation:

Given : the difference of the squares of the numbers is 5 and the product of the numbers is 6.

We have to find the sum of the squares of two numbers whose difference and product is given using given identity,

$(x^2+y^2)^2=(x^2-y^2)^2+(2xy)^2$

Since, given the difference of the squares of the numbers is 5 that is $(x^2-y^2)^2=5$

And the product of the numbers is 6 that is $xy=6$

Using identity, we have,

$(x^2+y^2)^2=(x^2-y^2)^2+(2xy)^2$

Substitute, we have,

$(x^2+y^2)^2=(5)^2+(2(6))^2$

Simplify, we have,

$(x^2+y^2)^2=25+144$

$(x^2+y^2)^2=169$

Thus, the sum of the squares of two numbers whose difference of the squares of the numbers is 5 and the product of the numbers is 6 is 169

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It is 4pi/7, or b. Just want to help ;)

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Answers: A. 2 B. 2/3 C. 1/2 D. 1/4

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A. 2

Step-by-step explanation:

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