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BARSIC [14]
3 years ago
9

I have no idea how to solve this

Mathematics
1 answer:
zhuklara [117]3 years ago
5 0

Answer: 8


Step-by-step explanation:

it's a rectangle, both the longer sides are the same and both the shorter sides are the same. so the opposite side has to equal 6, to get there we need to solve the equation, I did a few and ended up finding the correct answer to be 8. Since:

2*8-10=6

Therefore, both sides are now equal.

Ps- If you wouldn't mind, could you please help me out by marking Brainliest? I hate to ask but I only need one more before I rank up, and I'm so close!!

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A principal believes 50% of her music students reported their practice hours accurately. Based on that assumption, she ran 200 s
Alex17521 [72]

Answer:

C. unlikely

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

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

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

A probability is said to be extremely likely if it is 95% or higher, and extremely unlikely if it is 5% or lower. A probabilty higher than 50% and lower than 95% is said to be likely, and higher than 5% and lower than 50% is said to be unlikely.

In this problem, we have that:

\mu = 0.48, \sigma = 0.18

How likely is it that a single survey would return a mean of 30%?

We have to find the pvalue of Z when X = 0.30.

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

Z = \frac{0.30 - 0.48}{0.18}

Z = -1

Z = -1 has a pvalue of 0.1587.

So the correct answer is:

C. unlikely

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In Evan's math class, there are 7 boys and 10 girls. Which of the following is the ratio of boys to girls in Evan's math class?​
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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:

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  This is the other ray that will make up the angle ∠AYZ and will complete the construction.

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