In a parallel circuit, the current in each branch of the circuit is determined by

resistances in parallel combination of resistance.

1/Rp = 1/R1 + 1/R2 + 1/R3

The potential difference will be V.

By applying  Ohm's law,

V = IR

you have to draw the persons position over there

answer: at 24 february, 2014 the population gets twice of its initial population.

explanation:

since we have given that

the population for alpha city, t years after january 1, 2004 is given as

first we find out the initial population, i.e. t=0,

so, our quadratic equation becomes,

according to question, we have said that if the population has twice its initial population, then it becomes

so, time taken to reach this above mentioned population is given by

now, we know that time can't be negative so, we take t=9.149 years.

hence, at 24 february, 2014 the population gets twice of its initial population.