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2 years ago

Which expression is equivalent to the following complex fraction?

Mathematics

2 answers:

Virty [35]2 years ago

7 0

Answer:

$\dfrac{-4x+7}{2(x-2)}$

Step-by-step explanation:

Write the terms of numerator and denominator using a common denominator.

$\dfrac{\dfrac{3}{x-1}-4}{2-\dfrac{2}{x-1}}=\dfrac{\left(\dfrac{3-4(x-1)}{x-1}\right)}{\left(\dfrac{2(x-1)-2}{x-1}\right)}}=\boxed{\dfrac{-4x+7}{2(x-2)}}$

Arte-miy333 [17]2 years ago

3 0

Answer:

C is correct answer

Step-by-step explanation:

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Katyanochek1 [597]

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2 years ago

Find dy/dx. if y = 8u - 6 and u = 3x - 8.

Dmitriy789 [7]

Use the chain rule:

$\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{\mathrm dy}{\mathrm du}\dfrac{\mathrm du}{\mathrm dx}$

We have

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so we get

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Alternatively, you can substitute u in the definition of y and differentiate with respect to x :

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2 years ago

Help me please and thank you

aleksklad [387]

Answer:

b/-4+8=5
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Move the constant to the right
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Change the signs
b=12

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2 years ago

Please help need how to explain this theory. Thanks

frozen [14]

Hi there!

A recipe for cake needs 3/4 of a cup of milk.
We are making 1/2 of the recipe, which means we also need half of the milk needed for the total recipe. Therefore, we can multiply 1/2 (half of the recipe) by 3/4 (the total amount of cups of milk needed for the total recipe).

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2 years ago

I went to a toy shop and bought a toy car which costs $16.80, but there was a 20% discount. how much did I pay?

dangina [55]

Step-by-step explanation:

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you paid 13.44$

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8 months ago

Read 2 more answers