Ship has a circular window with a radius of 10 inches find the area of the window in square inches

The length of the line segment joining the midpoints of sides ab and bc of the parallelogram abcd is 10. find the length of diagnol ac

Sawsan recorded the favorite sport of students at her school. she surveyed 200 students. how many students chose tennis?

In chemistry, n molecules of an ideal gas have pressure, volume, and tempersture that stand inthe following relation, where r is constant. solve the equation for n, the number of molecules. pv=nrt