√(3*15)=√45=√[5*3^(2)]=3√5
The answer would be A, since the occurance is based purely on chance
Distribute the first +a to the +a and multiply, then multiply the same +a and the +b and then multiply the -b and the +a and then the -b and the +b.
Hope this helped, if you have any more questions about this, just ask.
(0.65+0.4+0.35)-0.10 is equal to 1.3
combining like terms is how you solve this problem
Please tell me if you dont understand. ill break it down for you