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3 years ago

Marry christmas even tho are parents lied to us and hes not real

Mathematics

2 answers:

Solnce55 [7]3 years ago

7 0

Answer:

oop lol MERRY CHRISTMAS!!!! Also cute picture :)

HAPPY HOLIDAYS!

Send virtural hugs*

zlopas [31]3 years ago

3 0

Answer:

Merry christmas, and he is real

Step-by-step explanation:

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3 years ago

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3 years ago

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Step-by-step explanation:

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3 years ago

Find the distance between (3,5) and (6, 7) A. 10.7 B. 3.6 C. 9.2 D. 12.4

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3 years ago

Prove that if r is any rational number, then 3r2 − 2r + 4 is rational. The following properties may be used in your proof. Prope

ziro4ka [17]

Given:

Expression is

$3r^2-2r+4$

To prove:

If r is any rational number, then $3r^2-2r+4$ is rational.

Step-by-step explanation:

Property 1: Every integer is a rational number. It is Theorem 4.3.1.

Property 2: The sum of any two rational numbers is rational. It is Theorem 4.3.2.

Property 3: The product of any two rational numbers is rational. It is Exercise 15 in Section 4.3.

Let r be any rational number.

We have,

$3r^2-2r+4$

It can be written as

$3(r\times r)-2r+4$

Now,

3, -2 and 4 are rational numbers by property 1.

$r^2=r\times r$ is rational by Property 3.

$3r^2\text{ and }-2r$ are rational by Property 3.

$3r^2+(-2r)+4$ is rational by property 2.

So, $3r^2-2r+4$ is rational.

Hence proved.

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3 years ago