An airplane has to go from pointA to another pointB, 500 km away due 30degree east of north. A wind is blowing due north at a speed of 20meter per second. The air speed of plane is 150meter per second. a) Find the direction in which the pilot should heat the plane to reach point B.
b) Find the time taken by the plane to go from A to B.

question1

1,000 tons

question2

3: 8

question 3

store d

step-by-step explanation:

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.

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