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velikii [3]
2 years ago
7

Find the value of x. 8. x+9 2x

Mathematics
1 answer:
just olya [345]2 years ago
3 0

2x = \frac{x+2}{2} => 4x = x + 2 => 3x = 2 => x = 2/3

ok done. Thank to me :>

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8 0
3 years ago
What is the solution set of {x | x > -3} {x | x < 3}?
givi [52]

x > -3

x < 3

<em><u>-3 < x < 3</u></em>

question didn't mention about "x is real number, or positive, or negative etc".. so we can't say anything more

for example: x can be -2,-1,0,1,2

but if only positive, x can be = 1,2

" " negative, x can be = -1, -2

Hope this helps ^-^

7 0
3 years ago
A right triangle has a hypotenuse length of 12, and one side length of 9. find the missing side length. do the side lengths form
Rina8888 [55]

Use the Pythagorean theorem:

a^2+b^2=c^2

c - a hypotenuse

a, b - legs

We have: a = 9 and c = 12. Substitute:

9^2+b^2=12^2

81+b^2=144               <em>subtract 81 from both sides</em>

b^2=63\to b=\sqrt{63}\\\\b=\sqrt{9\cdot7}\\\\b=\sqrt9\cdot\sqrt7\\\\ \boxed{b=3\sqrt{7}}

A Pythagorean triple consists of three positive integers a, b and c, such that

a^2+b^2=c^2.

b=3\sqrt{7} is not positive integer.

<h3>The sides of the triangle do not form a pythagorean triple.</h3>
5 0
3 years ago
Slimpfy 48 show all steps
chubhunter [2.5K]

Divide the number that islf can divide by like 2 or 3 or 4 for exaples

4 0
3 years ago
Evaluate the expression when a=-15 and b=-5 .<br><br> b+14 <br> ----------<br> 3
brilliants [131]
The answer is 3 because since b=-5 you get -5 and add it to 14 giving you 9 and then you divide 9/3 which gives you 3. Hope this helps :)
8 0
3 years ago
Read 2 more answers
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