Two people are looking up at a skyscraper. The people are 5 miles apart and the skyscraper is between them. The angle of elevation to the top of the skyscraper is 10 degrees for one person and 4 degrees for the other. What is the approximate height of the skyscraper?

How do i find the missing angle measure in a polygon

The temperature of a chemical solution is originally 21 ? c . a chemist heats the solution at a constant rate, and the temperature of the solution 75 ? c after 1212 12 minutes of heating. the temperature, tt t , of the solution in ? c is a function of x , the heating time in minutes. write the function's formula.

The weekly amount spent by a company for travel has an approximately normal distribution with mean = $550 and standard deviation = $40. a) what is the probability that the actual weekly expense will exceed $570 for more than 20 weeks during the next year? (note: one year = 52 weeks) b) what is the probability that actual weekly expenses exceed $580 for 10 or more, but 16 or fewer weeks during the next year?