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vovikov84 [41]
2 years ago
5

Pls help me out lol. I’m desperate

Mathematics
1 answer:
tensa zangetsu [6.8K]2 years ago
6 0

Answer:

x=3

Step-by-step explanation:

\frac{x}{9} =\frac{8}{21+x}

x²+21x-72=0

(x-3)(x+24)=0

x=3 or x=-24(rejected)

∴x=3

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<h3>What is a Triangle?</h3>

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<h3>Answer:   0.5</h3>

This is equivalent to the fraction 1/2

==============================================================

Explanation:

The distance from A to B is 3 units. We can count out the spaces, or subtract the x coordinates of the two points and apply absolute value.

|A-B| = |-5-(-8)| = |-5+8| = |3| = 3

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|B-A| = |-8-(-5)| = |-8+5| = |-3| = 3

We can say that segment AB is 3 units long.

--------------------------

The distance from A' to B' is 1.5 units because...

|A'-B'| = |-2.5-(-4)| = |-2.5+4| = |1.5| = 1.5

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We can say A'B' = 1.5

---------------------------

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