Arailroad tunnel is shaped like a semi ellipse, as shown below. the height of the tunnel at the center is 27 ft, and the vertical clearance must be 9 ft at a point 24 ft from the center. find an equation for the ellipse.

What is the perimeter of square abcd? units units 28 units 37 units

Suppose that an airline uses a seat width of 16.516.5 in. assume men have hip breadths that are normally distributed with a mean of 14.414.4 in. and a standard deviation of 0.90.9 in. complete parts (a) through (c) below. (a) find the probability that if an individual man is randomly selected, his hip breadth will be greater than 16.516.5 in. the probability is nothing. (round to four decimal places as needed.)

Pat listed all the numbers that have 15 as a multiple write the numbers in pats list