So u can find out what job you would like to have or what job is best for you.
No product results in -1, hence δlmn is NOT a right triangle showing that lydia's assertion is incorrect
<h3>Perpendicular lines</h3>
In order to determine whether triangle lmn is right-angled, we need to determine the slope of lm, ln, and mn first as shown:
For the slope of lm:
![m_{lm} = \frac{2-0}{2-0}\\ m_{lm} =2/2\\m_{lm} =1](https://tex.z-dn.net/?f=m_%7Blm%7D%20%3D%20%5Cfrac%7B2-0%7D%7B2-0%7D%5C%5C%20m_%7Blm%7D%20%3D2%2F2%5C%5Cm_%7Blm%7D%20%3D1)
For the slope of ln:
![m_{ln} = \frac{-1-0}{2-0}\\m_{ln} =-1/2\\](https://tex.z-dn.net/?f=m_%7Bln%7D%20%3D%20%5Cfrac%7B-1-0%7D%7B2-0%7D%5C%5Cm_%7Bln%7D%20%3D-1%2F2%5C%5C)
For the slope of mn:
![m_{mn} = \frac{-1-2}{2-2}\\m_{ln} =-3/0 = \infty\\](https://tex.z-dn.net/?f=m_%7Bmn%7D%20%3D%20%5Cfrac%7B-1-2%7D%7B2-2%7D%5C%5Cm_%7Bln%7D%20%3D-3%2F0%20%3D%20%5Cinfty%5C%5C)
- If any of the two lines is perpendicular, hence the triangle lmn is right-angled.
- To check, we will take the product of the slopes and see if it is equivalent to -1.
Product of slope lm and ln
![m_{lm}\times m_{ln} = 1 \times -1/2\\m_{lm}\times m_{ln} = -1/2](https://tex.z-dn.net/?f=m_%7Blm%7D%5Ctimes%20m_%7Bln%7D%20%3D%201%20%5Ctimes%20-1%2F2%5C%5Cm_%7Blm%7D%5Ctimes%20m_%7Bln%7D%20%3D%20-1%2F2)
Since no product results in -1, hence δlmn is NOT a right triangle showing that Lydia's assertion is incorrect
Learn more on slopes here: brainly.com/question/3493733
For me the best way to remember is to take your time and say the words out load, and have someone question you on it so you know what you need to study more.
Answer:
80%
Explanation:
Assuming each question was worth 1 point then your answer would be <u>16</u><u>/</u><u>20</u> or <u>80</u><u>%</u>
if not then add all the points of the test and subtract by the number of points you miss, and that'll be your answer