You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately 56.8 . You would like to be 95% confident that your estimate is within 4 of the true population mean. How large of a sample size is required

Mexico city, mexico, is the world's second largest metropolis and is also one of its fastest-growing cities with a projected growth rate of 3.2% per year. its population in 1991 was 20,899,000 people. use the formula p = 20.899e0.032t to predict its population p in millions with t equal to the number of years after 1991. what is the predicted population to the nearest thousand of mexico city for the year 2010?

Find the equation using the point (4,8)

What is the frequency of the sinusoidal graph?