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Marat540 [252]
3 years ago
9

Suppose two adjacent endpoint of a rotated square are located at (-4, -6) and (5, -1) on the coordinates axes. What is the lengt

h of the side of the square?

Mathematics
1 answer:
Rufina [12.5K]3 years ago
8 0
To find the length of the side of the square, we just need to find the distance between the two endpoints. This problem can quickly be solved by using the distance formula, but for those who are not familiar with it, we can simply solve it by analyzing a triangle.

Take a look at the diagram below. We are interested in x. To find this we have created a right triangle. The horizontal component is just the distance between the x coordinates of the two points while the vertical component is the distance between the y coordinates.

The horizontal component is 9 and the vertical component is 5. We can now get x by using the pythagorean theorem:

x^{2}= 9^{2} + 5^{2} =81+25=106
x= \sqrt{106} which is approximately equal to 10.30 units.

ANSWER: 
The length of the side of the square measures 10.30 units.

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You scored an 85 on a test. This corresponds to a z-score of 1.80. What percentage of the scores are better than yours?
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At a z-score of 1.80, the percentage of the scores that are better than yours is equal to 3.59%.

<h3>What is a z-score?</h3>

In Mathematics, a z-score is sometimes referred to as a z-value or standard score and it can be defined as a measure of the distance between a raw score and the mean, when standard deviation units are used.

<h3>How to determine the percentage?</h3>

Mathematically, the z-score of a given sample score in a normal distribution can be calculated by using this formula:

Z-score = (x - μ)/σ

Where:

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Since a score of 85 on a test corresponds to a z-score of 1.80, the percentage of the scores that are better than yours is given by:

P(x > 85) = P(z > 1.80)

P(z > 1.80) = 0.0359

P(z > 1.80) = 3.59%.

Read more on z-scores here: brainly.com/question/26714379

#SPJ1

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Take a bear and have a nice day.

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