Answer: z = ![\sqrt{10}](https://tex.z-dn.net/?f=%5Csqrt%7B10%7D)
Step-by-step explanation:
To find <em>z</em>, you must set up a proportion to solve.
To find the altitude of a special right triangle, the formula is:
![\frac{a}{x} =\frac{x}{b}](https://tex.z-dn.net/?f=%5Cfrac%7Ba%7D%7Bx%7D%20%3D%5Cfrac%7Bx%7D%7Bb%7D)
You can use <em>5</em> as <em>a</em> and <em>2</em> as <em>b</em> to complete the proportion:
![\frac{5}{z} =\frac{z}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B5%7D%7Bz%7D%20%3D%5Cfrac%7Bz%7D%7B2%7D)
Next, to solve:
<u>Step 1</u>: Cross-multiply.
![\frac{5}{z} =\frac{z}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B5%7D%7Bz%7D%20%3D%5Cfrac%7Bz%7D%7B2%7D)
(5)*(2) = z*z
10 = z²
<u>Step 2</u>: Take square root.
10 = z²
√10 = z
I hope this helps!
Can be expressed as y=0.55n
Answer:
12x9= 124
Step-by-step explanation:
if you multply it right
12j + 12 + 3j or 15j + 12. This is because if you use Distributive Property to distribute the 3, then you multiply 3 by all the number inside the parentheses. I have two expressions because once you get get the answer after you use the property, then you can combine like terms, such as 12j and 3j which is 15j. Hope this helps!