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3 years ago

Find the midpoint of (9,2) and (-7,-9)

Mathematics

1 answer:

11Alexandr11 [23.1K]3 years ago

6 0

Answer:

(1,-7/2)

Step-by-step explanation:

The midpoint of (9,2)(-7,-9) is (1,-7/2)

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A proportion question

gizmo_the_mogwai [7]

Answer:

because x,y,z are in continuous proportion

=> x/y = y/z

<=> xz = y² =>

$\frac{xz}{y} =y\\\\=>\frac{x^{3}z^{3} }{y^{3} }=y^{3}$ (1)

with (1), we have:

$x^{2}y^{2}z^{2}(\frac{1}{x^{3} }+\frac{1}{y^{3} }+\frac{1}{z^{3} })\\\\= (xyz)^{2}(\frac{1}{x^{3} } +\frac{y^{3} }{x^{3}z^{3} }+\frac{1}{z^{3} })\\\\=(xyz)^{2} (\frac{x^{3}+y^{3}+z^{3} }{x^{3}z^{3}} )\\\\=y^{2}.\frac{x^{3}+y^{3}+z^{3} }{xz} \\\\= xz.\frac{x^{3}+y^{3}+z^{3} }{xz} \\\\=x^{3}+y^{3}+z^{3}$

Step-by-step explanation:

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2 years ago

I NEED THIS ASAP!!!!

Andreas93 [3]

If you subtract 2 from both sides

It would be 4=-4x

So the answer is B

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3 years ago

Please help me this is due tomorrow and I just need this. ALSO WHEN YOU ANSWER SHOW ME YOUR STEPS FOR BRAINLEST THANKS!

Gnesinka [82]

Answer:

x=3

Step-by-step explanation:

1/4(12x + 4) - 14= -1/2(8x - 16)

1. Simplify each side my multiplying

3x - 13 = -4x + 8

2. Add 13 on each side

3x = -4x + 21

3. Add 4x on each side

7x = 21

x=3

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3 years ago

What is (2x2) divided by [2x87239]9

s2008m [1.1K]

here's the answer for you

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3 years ago

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steposvetlana [31]

<h2><u>PLEASE MARK BRAINLIEST!</u></h2>

Answer:

All these answers are correct. I triple - checked!

Step-by-step explanation:

In order from questions asked top - to - bottom:

First question:

23 businesses

Second question:

18 businesses

Third question:

14 businesses

Fourth question:

6 businesses

I hope this helps!

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2 years ago