Step-by-step explanation:
Answer: 4 - 12(-5) = 64.
Well, the triangle could have a few possibilities to get the angles. They are:
30-30-120
30-60-90
30-90-60
30-120-30
60-30-90
60-60-60
60-90-30
90-30-60
90-60-30
Thus, there are 9 possible cases. Out of them 3 are good, so the probability is 1/3, or 33%.
Answer
7,0
Step-by-step explanation:
Substitute -6y+7 into problem one where the x is
distribute the 2 and subtract the 9 y and you will get
-21y+14=14
subtract 14 from both sides and it will be -21y=0 so y will be 0
substitute the 0 into equation 2 and find x=7
1. {x}^{2} - 25x = 0
2. {y}^{2} - 64
3. {x}^{2} + 2x - 48
I hope that's what you are looking for. Let me know if you were looking for something else.