The answer of
is √ 2
<u>Step-by-step explanation:</u>
The value of
= √2/ 2
The value of
= √2/ 2
= √2/ 2 + √2/ 2
= √2 + √2 / 2
= 2 √2 / 2
Dividing √2 by 1
= √2
To find the mean or the avg you add up all the numbers you have and then divide by how many numbers you added together in this case 5
![6+ 17+22+28+37=110](https://tex.z-dn.net/?f=6%2B%2017%2B22%2B28%2B37%3D110)
![\frac{110}{5} =22](https://tex.z-dn.net/?f=%20%5Cfrac%7B110%7D%7B5%7D%20%3D22)
so the mean is 22, hope this helped you!
Hello!
6.
Since the area is that of a square, you know that all side lengths are the same.
Area is base times height (A = bh), but since base and height are the same for a square, you get the formula A = a².
![A = a^{2}](https://tex.z-dn.net/?f=A%20%3D%20a%5E%7B2%7D%20)
![144 = a^{2}](https://tex.z-dn.net/?f=144%20%3D%20a%5E%7B2%7D%20)
![\sqrt{144} = a](https://tex.z-dn.net/?f=%20%5Csqrt%7B144%7D%20%3D%20a)
![12 = a](https://tex.z-dn.net/?f=12%20%3D%20a)
The length of the side of a square with an area of 144 in² is
12 in.
7.
Rational number.
8.
This is a right triangle; use the Pythagorean Theorem to find missing lengths of right triangles. Pythagorean Theorem: a² + b² = c², where c is the hypotenuse of the triangle.
Plug in your leg lengths:
a² + b² = c²
8² + x² = 21²
64 + x² = 441
x² = 377
x = 19.4