A. a square's perimeter is 4 times the length of its side

Z4=289 there should be 4 answers total 2 whole numbers and either 2square root or imaginary number answers

Let the mean of the population be 38 instances of from 6" - 9" hatchings per nest, and let the standard deviation of the mean be 3. what sample mean would have a confidence level of 95% or a 2.5% margin of error?

Pls if a cow has a mass of 9×10^2 kilograms, and a blue whale has a mass of 1.8×10^5 kilograms, which of these statements is true?