The school security committee has complained that there are intruder who hide behind the gate and break in the school in the evening. as a physics student you have been tasked to design which the gate keeper will use the intruder who hide behind the gate

its c its is a mixture of gases

d.7.5cm is your answer

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.

answera compound;