if a car is driven 4 miles east and then 3 miles nort what is the distance and displacement of the trip​

Explanation:

Distance is scalar, displacement is vectoral

Distance 3 + 4 = 7 miles

Displacement √(3² + 4²) = 5 miles

explanation:

as the height from which the ruler was dropped increased, the speed of the ruler at ryan's hand increased.

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.