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4 years ago

Someone help me with this please?

Mathematics

2 answers:

MariettaO [177]4 years ago

7 0

The question's cut off. repost & ill see if i can help (:

WINSTONCH [101]4 years ago

6 0

I am sorry, but I think that the question is cut off. Perhaps you can re-post it for us to see it completely? I would be happy to help! :)

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Which of the following are steps to use when formulating an equation? Check all that apply.

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Answer:

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Step-by-step explanation:

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Which of the following is an example of the difference of two squares

True [87]

Complete Question: Which of the following is an example of the difference of two squares?

A x² − 9

B x³ − 9

C (x + 9)²

D (x − 9)²

Answer:

A. $x^2 - 9$ .

Step-by-step explanation:

An easy way to spot an expression that is a difference of two squares is to note that the first term and the second term in the expression are both perfect squares. Both terms usually have the negative sign between them.

Thus, difference of two squares takes the following form: $a^2 - b^2 = (a + b)(a - b)$ .

a² and b² are perfect squares. Expanding $(a + b)(a - b)$ will give us $a^2 - b^2$ .

Therefore, an example of the difference of two squares, from the given options, is $x^2 - 9$ .

$x^2 - 9$ can be factorised as $x^2 - 3^2 = (x + 3)(x - 3)$ .

8 0

3 years ago

Ok this is stressin me out anyone know this

Levart [38]

X=7.
9x-7y=63
9x-7 x 0=63
9x - 0=63
9x=63
X=7.

Y=-9
9 x 0 -7y=63

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3 years ago

Graph the circle (x-1)2+(y-8)2=4

Ludmilka [50]

Answer:

Use desmos graphing calculator

Step-by-step explanation:

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3 years ago