Answer:
1. 12 boys,
5. 15 hours
6. 36
Im not so sure on the others, Gl!
The prime factorization of 16 is 2⋅2⋅2⋅2.
The factors of 16 are all numbers between -16 and 16 that divide 16 evenly.−16,−8,−4,−2,−1,1,2,4,8,16
We use direct proportionality:
360⁰......Pi×R² (full circle)
120⁰.......x
x=120×pi×R²/360=pi×R²/3
x=pi×4²/3=16.76mi²
A=3×pi cm², for an angle of 2×pi/3=120⁰
In a similar way we compute the area of the full circle:
360.........x
120..........3×pi
x=3×pi×360/120=9×pi=3²×pi.
Thus the radius is 3cm.
KE = 1/2mv^2
96 = 1/2m(16)
96 = 8m
m = 12 kg