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2 years ago

If Julie needs 3 and 1/4 cups of oatmeal how many 1/4 cups of oatmeal will she use

Mathematics

1 answer:

Effectus [21]2 years ago

3 0

Answer:

She will use 13 quarter cups of oatmeal

Step-by-step explanation:

3 1/4 = 13/4

x/4 = 13/4

4(x/4) = 4(13/4)

x = 13

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-24 + 2(w-9)<br> Show and explain work <br> (Distributive property)

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Answer:

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-24+2(w-9)

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Subtract -24 -18

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

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

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

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$=2 \quad\checkmark$

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2 years ago