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3 years ago

I don't understand this problem, please help?!?!?!

Mathematics

1 answer:

PilotLPTM [1.2K]3 years ago

8 0

It will take Steven 8 weeks to pay for his bike. What type of table is the homework referring too?

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3 years ago

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 $x^2 - 3^2 = (x + 3)(x - 3)$ .

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3 years ago

Which answer shows 0. 00897 written in scientific notation? 0. 897 times 10 Superscript negative 2 8. 97 times 10 Superscript ne

eduard

Answer:

c i think

Step-by-step explanation

not 100% tho

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2 years ago