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3 years ago

What is 18/4 writing in a mixed number

2 answers:

8 0

As a mixed number, that would be 4 2/4, or 4 1/2 simplified.

I hope this answer helped you! Feel free to ask me any more questions if you need help! :)

Archy [21]3 years ago

6 0

The answer is 4 2/4 or 4 1/2 because 18 divided by 4 is 4.5 or 4 1/4= 4 1/2

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Triangle ABC has AB=5, BC=7, and AC=9. D is on AC with BD=5. Find the length of DC

e-lub [12.9K]

Answer:

$DC=\frac{8}{3}\ units$

Step-by-step explanation:

The picture of the question in the attached figure

we know that

The triangle ABD is an isosceles triangle

because

AB=BD

The segment BM is a perpendicular bisector segment AD

In the right triangle ABM

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we have

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substitute

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$BM^2=25-x^2$ -----> equation A

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Applying the Pythagorean Theorem

$BM^2=BC^2-MC^2$

we have

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substitute

$BM^2=7^2-(9-x)^2$

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equate equation A and equation B

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Simplify

$x=\frac{19}{6}$

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$DC=AC-2x$

substitute the given values

$DC=9-2(\frac{19}{6})$

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