The center of the Pentagon in Arlington, Virginia, is a courtyard in the shape of a regular pentagon The pentagon could be inscribed in a circle with a radius of 300 feet. Find the area of the courtyard Round to the nearest tenth

Solve 13 + w/7= -18 (w/7 is a fraction)

An incoming airplane is x miles due north from the control tower at an airport. a second incoming airplane is y miles due east of the same control tower. the shortest distance between the two airplanes is z miles. which of the following functions would best model the situation above?

The perimeter of ? cde is 55 cm. a rhombus dmfn is inscribed in this triangle so that vertices m, f, and n lie on the sides cd , ce , and de respectively. find cd and de if cf=8 cm and ef=12 cm. the answer is not cd=20 and de=15. i have tried that one, it does not work.