Fill in the Blank Question In a controlled experiment, thevariable is the factor whose outcome depends on the
Variable.

dependent, independent

Explanation:

In a controlled experiment, the dependent variable is the factor whose outcome depends on the independent variable.

For example, if you push a box harder, it will go further. Here distance moved by the box is dependent on the amount of force you push it with. So, in this case, distance is dependent variable, and force is independent variable

0.19 m/s and 0.45 m/s

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.