The population of a country A was 40 million in the year 2000 and has grown continually in the years following the population P in millions of the country t years after 2000 can be modeled by the function P(t)=40e^0.027t which expression represents how many years It takes for the population to reach 50 million

Asquare parking lot has 6,400 square meters what is the length in meters

The final cost of a sale is determined by multiplying the price on the tag by 75%. which best describes the function that represents the situation?

Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.