A simple random sample of 31 observations was taken from a large population. The sample mean equals 5. Five is a .

What is the product of the radical expression. (7-2square root) (8+2 square root)

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x