3 years ago

Why is y^2=x+2 not a function?

Mathematics

1 answer:

tia_tia [17]3 years ago

4 0

Cause its not :/ why would it be

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Weekly wages at a certain factory are

Furkat [3]

Answer: 0.1359

Step-by-step explanation:

mean = $400

Standard deviation = $50

Since the wages is normally distributed , the first thing is to find the z - score.

z = $\frac{x-mean}{standard deviation}$

finding the z - value for 300 and 350 , we have

z = $\frac{300-400}{50}$

z = $\frac{-100}{50}$

2 = -2

also

z = $\frac{350-400}{50}$

z = $\frac{-50}{50}$

z = -1

The next thing is to check the calculated value on z - table.

From z - table :

P (z $\leq$ -2 ) = 0.0228

P ( z $\leq -1$ ) = 0.1587

combining the two

P ( -2 $\leq$ z $\leq$ -1 ) = 0.1587 - 0.0228

P ( -2 $\leq$ z $\leq$ -1 ) = 0.1359

Therefore , the the probability that a worker

selected at random makes between

$300 and $350 = 0.1359

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3 years ago

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Amiraneli [1.4K]

Answer:

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2 years ago

Which sentence is true about an equiangular triangle?

atroni [7]

Answer:

Step-by-Step Answer

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3 years ago

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nirvana33 [79]

Answer:

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