For certain workers, the mean wage is $7.00/hr. with a standard deviation of $0.50. if a worker is chosen at random, what is the probability that the worker's wage is between $6.00-$8.00/hour? Assume a normal distribution of wages. ​

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.

according to jean piaget, in what stage of cognitive development are children able to understand conservation task?

b. preoperational

just took it