For number 3 you would add all the inside angles (7x-11)+(2x-3)+(5x-2) and set it equal to 180. I got x = 196
C.Is a right triangle because a2+b2=c2
If you do 33^2+56^2=65^2
33^2=1089 56^2=3136. Add that together equals 4225 and if you do 65^2 it equals 4225 which would mean it is a right triangle
10*[(6+4) / 2]
= 10*[10/2]
= 10 * 5
= 50
Applying the given probabilities, it is found that there is a 0.42 = 42% probability of watching a movie today.
These following <em>probabilities </em>involve a movie being watched today:
- 0.5 of 0.6(if it rains today).
- 0.3 of 1 - 0.6 = 0.4(if it does not rain today).
Hence, adding them:

0.42 = 42% probability of watching a movie today.
A similar problem is given at brainly.com/question/14398287