Asquare playground has a white line drawn through its diagonal. this creates two triangles whose angle measures are 45°, 45°, and 90°. if the sides of the playground are 55 feet, use trigonometric functions to find the approximate length, x, of the diagonal. round answer to tenths.

The following frequency table relates the weekly sales of bicycles at a given store over a 42-week period. value01234567frequency367108521(a) in how many weeks were at least 2 bikes sold? (b) in how many weeks were at least 5 bikes sold? (c) in how many weeks were an even number of bikes sold?

An airplane travels at an unknown elevation before it descends 3 miles to an elevation of 15 miles. find the elevation of the plane before its descen.

Atown has a population of 12000 and grows at 3.5% every year. what will be the population after 7 years, to the nearest whole number?