An aircraft is vertically above a point which is 10 km west and 15 km north from a control tower. if the aircraft is 4000 m above the ground, how far is it

(hurry! ) which expression is equivalent to the following complex fraction?

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?

Which is the length of the hypotenuse of the triangle a. 94ft b. 214 ft c. 33ft d. 37 ft