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Nuetrik [128]
3 years ago
15

I WILL AWARD BRAINLIEST!! PLEASE HELP ME!!

Mathematics
1 answer:
a_sh-v [17]3 years ago
8 0

Answer:

A: <MKB, because of the isosceles triangle theorem. If two sides of a triangle are congruent, it is isosceles, so the angles opposite them are also congruent.

Step-by-step explanation:

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In AFGH, the measure of ZH=90°, the measure of ZG=7°, and FG = 5.1 feet. Find
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Renee scores an average of 153 points in a game of bowling, and her points in a game of bowling are normally distributed. Suppos
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Answer:

\sigma=\frac{175-153}{2}=11

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".  

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

X \sim N(153,unknown)  

Where \mu=153 and \sigma=?

We know that the value for Renee is X=175 and the z score obteined was Z=2.

Solution to the problem

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{X-\mu}{\sigma}

We are interested on the value of \sigma and we can solv for it:

z \sigma = X-\mu

\sigma=\frac{X-\mu}{z}

And replacing the values we have:

\sigma=\frac{175-153}{2}=11

 

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3 years ago
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Please help ME for brainliest.
Kryger [21]

Answer:

Equation: -1.2y-4.2y=-3.78

Solved: y=0.7

Step-by-step explanation:

-1.2y-4.2y=-3.78

-5.4y=-3.78

y=0.7

I will take you up on your brainliest offer

3 0
3 years ago
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