A student decided to set up an experiment to see if cats preferred skim milk over the usual 2% milk. She gave each of the five cats 1 cup of 2% milk and recorded the time it took for them to finish. She repeated this procedure for 1 week. She then gave the same five cats 1 cup of skim milk and recorded the time it took for them to finish. She repeated this procedure for 1 week as well. Using the same 5 cats would be . a control

control group

experimental group

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.