This is the Internet. It's really easy to look up.
Order doesn't mater so use combinations:
6C3 = 6!/ (3! (6-3)! ) = 6! /(3!*3!) = 6*5*4*3! / (3! 3!) = 6*5*4/3*2*1) = 20
There appears to be a typing error in the second equation.
Still the answer is (7,10) because it is the only ordered pair that works for the first equation.
A) Angle 1 + Angle 2 = 180
B) Angle 1 - Angle 2 = 16
Adding both equations:
2 * Angle 1 = 196
Angle 1 = 98
Angle 2 = 82
Answer:
57.8 or 57 and four fifths
Step-by-step explanation:
5+14=19
19*3=57
57+0.8= 57.8
