Answer:
2
Step-by-step explanation:
You add 2 subtract 3
Calculating the z-score provides additional information regarding how each subject did overall as the z-score takes dispersion into account.
<h3>What is a z score?</h3>
Z-score indicates how much a given value differs from the standard deviation. For example, the mean of a test could be a 73 and if a student scored an 85, that's great.
However, if the data is not spread out, that 85 could be the highest in the class by 10 points. That's much more information than just 15 points above the mean. This way you can tell when someone not only did well but did exceptionally well in comparison to his or her peers.
Learn more about z score on:
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A triangle has 180 degrees. You can find the total sum of the ratio by adding its parts together 1+3+5 = 9 Now to find out what each part of the ratio is worth we divide the whole value (180) by the sum of the ratio parts (9)
180/9 = 20
Now we multiply each part of the ratio by 20
1 * 20 = 20
3 * 20 = 60
5 * 20 = 100
Since we have an angle greater than 90 degrees this is an obtuse triangle.
Answer:
Step-by-step explanation:
![(\sqrt[4]{9})^{\frac{1}{2}x}=(9^{\frac{1}{4}})^{\frac{1}{2}x}\\\\=9^{\frac{1}{4}*\frac{1}{2}x}\\\\=9^{\frac{1}{8}x}](https://tex.z-dn.net/?f=%28%5Csqrt%5B4%5D%7B9%7D%29%5E%7B%5Cfrac%7B1%7D%7B2%7Dx%7D%3D%289%5E%7B%5Cfrac%7B1%7D%7B4%7D%7D%29%5E%7B%5Cfrac%7B1%7D%7B2%7Dx%7D%5C%5C%5C%5C%3D9%5E%7B%5Cfrac%7B1%7D%7B4%7D%2A%5Cfrac%7B1%7D%7B2%7Dx%7D%5C%5C%5C%5C%3D9%5E%7B%5Cfrac%7B1%7D%7B8%7Dx%7D)
Answer:
x=1/5
Step-by-step explanation:
-5x-(-7-4x)=-2(3x-4)
-5x+7+4x=-6x+8
-5x+4x+7=-6x+8
-x+7=-6x+8
-x-(-6x)+7=8
-x+6x+7=8
5x+7=8
5x=8-7
5x=1
x=1/5
