The components of vector A⃗ are Ax = +2.7 and Ay = -6.2 , and the components of vector B⃗ are given are Bx = -7.9 and By = -9.1. What is the magnitude of the vector B⃗ - A⃗ ?

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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third one with arrows on top of each other going the same direction