Awater tank is formed by revolving the curve y = 6x4 about the y-axis. find the volume of water in the tank as a function of the water depth, y.

unable to answer the rest since your question is incomplete

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.

spare some change and give it to the poor

explanation:

plz : ((