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Ivahew [28]
3 years ago
8

10 Pts + Brainliest for the best answer

Mathematics
1 answer:
LenaWriter [7]3 years ago
3 0

m∠PQR = m∠BQR + m∠PQB

We have m∠PQR = 116° and m∠BQR = 75°. Substitute:

116° = 75° + m∠PQB     <em>subtract 75° from both sides</em>

41° = m∠PQB

<h3>Answer: m∠PQB = 41°</h3>
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What is the value of y when x = 6? -3x + 9y = 18
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3 years ago
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ecn 221 The lengths of brook trout caught in a certain Colorado stream are normally distributed with a mean of 14 inches and a s
iren [92.7K]

Answer:

a=14 -0.842*3=11.474

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Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the lengths of a population, and for this case we know the distribution for X is given by:

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Where \mu=14 and \sigma=3

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P(X   (b)

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If we use condition (b) from previous we have this:

P(X  

P(z

But we know which value of z satisfy the previous equation so then we can do this:

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And if we solve for a we got

a=14 -0.842*3=11.474

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3 years ago
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Afina-wow [57]

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Step-by-step explanation:

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