Step-by-step explanation:
1. Right
2. Right
3. Right
4. Right
5. Right
6. Right
7. Its not properly visible sorry for this.
8. Its wrong
![(\frac{1}{3} ) {}^{2} = \frac{1}{9}](https://tex.z-dn.net/?f=%20%28%5Cfrac%7B1%7D%7B3%7D%20%29%20%7B%7D%5E%7B2%7D%20%20%3D%20%20%5Cfrac%7B1%7D%7B9%7D%20)
9. Right
10. Its wrong
![0.5 {}^{3} = 0.125](https://tex.z-dn.net/?f=0.5%20%7B%7D%5E%7B3%7D%20%20%3D%200.125)
11. Right
12. Its wrong.... Bcz square of minus is plus
![- 9 {}^{2} = 81](https://tex.z-dn.net/?f=%20-%209%20%7B%7D%5E%7B2%7D%20%20%3D%2081)
13. Right
14. According to the BODMAS rule..
![15 - 7 \times 2 + {2}^{3}](https://tex.z-dn.net/?f=15%20-%207%20%5Ctimes%202%20%2B%20%20%7B2%7D%5E%7B3%7D%20)
![15 - 14 + 8](https://tex.z-dn.net/?f=15%20-%2014%20%2B%208)
![1 + 8 = 9](https://tex.z-dn.net/?f=1%20%2B%208%20%3D%209)
15.
![(11 - 8) {}^{2} - 2 \times 6](https://tex.z-dn.net/?f=%2811%20-%208%29%20%7B%7D%5E%7B2%7D%20%20-%202%20%5Ctimes%206)
![3 {}^{2} - 12](https://tex.z-dn.net/?f=3%20%7B%7D%5E%7B2%7D%20%20-%2012)
![9 - 12 = - 3](https://tex.z-dn.net/?f=9%20-%2012%20%3D%20%20-%203)
16.
![12 + \frac{ {9}^{2} }{3}](https://tex.z-dn.net/?f=12%20%2B%20%20%5Cfrac%7B%20%7B9%7D%5E%7B2%7D%20%7D%7B3%7D%20)
![12 + \frac{81}{3}](https://tex.z-dn.net/?f=12%20%2B%20%20%5Cfrac%7B81%7D%7B3%7D%20)
![12 + 27 = 39](https://tex.z-dn.net/?f=12%20%2B%2027%20%3D%2039)
<h3>Hope this helps u </h3>
... ✌️❤️
Answer:
147 degrees
Step-by-step explanation:
all the angles of a triangle add up to 180 degrees. so, you must perform the operation 180-(83+64) which equals 33. this is the angle supplementary to angle 1. to find angle 1, you must subtract 180 and 33 since supplementary angles add up to 180 degrees. this is equal to 147 degrees.
Step-by-step explanation: The easiest way to do this and the way I commonly use is to subtract 17 from 89then make it negative as you are making the negative number smaller by adding a smaller number therefore your answer is -72