1800cm3 of fresh water of density 100kgm3 is mixed with 2200kgm3 of sea water of density 1025kgm3.calculate the density of mixture.

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.

im srry but ur wrong the answer is d a smooth rock, some red dirt, and an empty bird's nest.

54 degrees incident angle = reflected angle

angle is from normal turned to line of ray