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3 years ago

Write a even number between 3 and 12. Draw a picture and then write a sentence to explain why it is an even number

Mathematics

2 answers:

zloy xaker [14]3 years ago

7 0

Even numbers are 2 4

rewona [7]3 years ago

3 0

6, 6 is an even number because it can be divided by two and has always two same numbers such as 3 that combine to make that even number such as 3+3

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Answer:

$6-3\sqrt{3}$

If you compare this to $a+b\sqrt{3}$ , then $a=6$ and $b=-3$ .

Step-by-step explanation:

We are given $x=\sqrt{3}-1$ and we are asked to find the value of $x^2-x+1$ .

So we will need to find $x^2$ .

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Square both sides:

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Expand using identity: $(x-a)^2=x^2-2ax+a^2$ .

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$4-2\sqrt{3}-\sqrt{3}+1+1$

$6-3\sqrt{3}$

If you compare this to $a+b\sqrt{3}$ , then $a=6$ and $b=-3$ .

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3 years ago

What is -6x+3(4x-5)=21

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-15 i think if not u just got to use the quadratic formula.

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