Answer:
50 boys
Step-by-step explanation:
2/4 = 1/2
25*2=50
Answer:
1.25 x 10^-8
Step-by-step explanation:
we are given

now, we can find x , y and z components

Arc length calculation:
we can use formula


now, we can plug these values

now, we can simplify it




now, we can solve integral


now, we can plug bounds
and we get

so,
..............Answer