The temperature went from 83 at noon to 72 at midnight. what is the percent of decrease in the temperature from noon to midnight

Acircular hot tub located near the middle of a rectangular patio has a diameter of 48 inches. the patio measures 11 feet by 6 feet. what is the area of the patio that is not covered by the hot tub?

When the ball has traveled a distance of

Me, the vertices of quadrilateral coat are c(2,0), o(7,0), a(7,2) and t(2,2). prove that coat is a rectangle.