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3 years ago

Make X the subject :))

Mathematics

1 answer:

Rom4ik [11]3 years ago

3 0

Answer:

$x = \frac{3 + 8y}{y - 1}$

Step-by-step explanation:

$y = \frac{x + 3 }{x - 8}$

Cross multiply,

y(x - 8) = x +3

yx - 8y = x + 3

yx - 8y -x = 3

yx - x = 3 + 8y

(y - 1)x = 3 +8y

$x = \frac{3 + 8y}{y - 1}$

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The answer would be choice c.

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3 years ago

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In the equation 3s +135= 4.5 (s +10) what is s

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2 years ago

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3 years ago

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4 years ago

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borishaifa [10]

Answer:

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And then the statistic would be given by:

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And the best option would be:

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Step-by-step explanation:

For this problem we have the following observed values:

Yes 40 No 60 No Opinion 50

And we want to test the following hypothesis:

Null hypothesis: All the opinions are uniformly distributed

Alternative hypothesis: Not All the opinions are uniformly distributed

And for this case the statistic would be given by:

$\chi^2 = \sum_{i=1}^n \frac{(O_i -E_i)^2}{E_i}$

The expected values for all the categories is :

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And then the statistic would be given by:

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And the best option would be:

b. 4

7 0

4 years ago