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miss Akunina [59]
1 year ago
12

Part A

Mathematics
1 answer:
denis-greek [22]1 year ago
7 0

Answer:

252/193

Step-by-step explanation:

According to the question

volume=36cm^3

Radius=3cm

Now

h= v/πr^2

=36/π*3^2

=36*7/193

=252/193cm

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6x-4y=-14 <br>-3x-3y=12<br><br>with the elimination method
Vanyuwa [196]
6x-4y=-14
2(-3x-3y=12)

6x-4y=-14
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6x-4(-1)=-14
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2 years ago
Which is more 4 inches or 1 foot
ladessa [460]

Answer: 1 foot

Step-by-step explanation:

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3 years ago
A number close to 1,772 that is easily divisible by 90
VashaNatasha [74]
<h2>1,800</h2>

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

Let's try to divide 1,772 and see how much math we need to do...

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Well, clearly we need more than 1,772!

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Now, play around with adding numbers.

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2 years ago
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Please prove the following identity
Sedaia [141]

Let's remember the factorizations

a^3 + b^3 = (a+b)(a^2-ab+b^2)

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Now

\dfrac{\sin ^3 \theta + \cos^3 \theta}{\sin \theta + \cos \theta} + \dfrac{\sin^3 \theta - \cos^3 \theta}{\sin \theta - \cos \theta}

=\dfrac{(\sin \theta + \cos \theta)(\sin ^2 \theta - \sin \theta\cos \theta + \cos^2 \theta)}{\sin \theta + \cos \theta} + \dfrac{(\sin \theta - \cos \theta)(\sin^2 \theta + \sin \theta \cos \theta + \cos^2 \theta)}{\sin \theta - \cos \theta}

=\sin ^2 \theta - \sin \theta\cos \theta + \cos^2 \theta + \sin^2 \theta + \sin \theta \cos \theta + \cos^2 \theta

=\sin ^2 \theta + \cos^2 \theta + \sin^2 \theta+ \cos^2 \theta

=2 \quad\checkmark

4 0
3 years ago
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