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3 years ago

FIND PR.PLS HELP BRAINLIEST...

Mathematics

1 answer:

slega [8]3 years ago

6 0

Answer:

6.2 units.

Step-by-step explanation:

We are given two angles and an opposite corresponding side. To solve for an unknown side, we can use the law of sines.

$\frac{8}{sin(90)}=\frac{x}{sin(180-39-90)}=\frac{x}{sin(51)}$

Cross multiplying and solving will get you this:

$x=\frac{8(sin(51))}{sin(90}$

Which can simplify to:

$x=8(sin(51))$

Which putting into a calculator gets you:

$x=6.2$

So the line PR is 6.2 units long.

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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

From the question we are told that

The sample size is n = 26

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The standard deviation is $s = 3$

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$\alpha = (100 - 95 ) \%$

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Generally from the normal distribution table the critical value of $\frac{\alpha }{2}$ is

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Generally the margin of error is mathematically represented as

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