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3 years ago

14

I don't understand how to do this

1 answer:

just olya [345]3 years ago

5 0

You cross multiple to get the same denominator so you can properly divide the fraction

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Y decreased by 9is 8

olga55 [171]

Answer:

It's easy to figure it out. The equation we have is 8 = y - 9. We need to isolate y. Simply add 9 to each side of the equation to get this: 17 = y.

ANSWER: 17 = y

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3 years ago

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4 years ago

Lim (9-x)/(3-√x), x ->9. Correct answer is 6

umka2103 [35]

$\lim_{x\to 9}\dfrac{9-x}{3-\sqrt x}=\\
\lim_{x\to 9}\dfrac{(9-x)'}{(3-\sqrt x)'}=\\
\lim_{x\to 9}\dfrac{-1}{-\dfrac{1}{2\sqrt x}}=\\
\lim_{x\to 9}2\sqrt x=\\
2\sqrt9=\\
2\cdot3=\\
6$

8 0

4 years ago