Answer:
There are 14 boys
Step-by-step explanation:
Ok so let me explain, so there 14 boys and 8 girls. So there is a 79.2% chance that the boys will get picked and there is a 20.8% chance the girls will get picked and the boys chance are greater so that how.
4x^2+10x-2=0
So the total area of mirror: 2*3 = 6 ft sq
8-6 = 2 ft sq is the area of the frame
x is the thickness of the frame
so we have (2*x)*2+(3*x)*2+x*x*4= 2
4x+6x+4x^2=2
-> 4x^2+10x-2=0
