Atabletop in the shape of a trapezoid has area an of 6,550 square centimeters. its longer base measures 115 centimeters, and the shorter base is 85 centimeters. what is the height?

What number must you add to complete the square x^2+12x=16

The width of a rectangle is 20 units. can the perimeter p of the rectangle be 64 units when its length x is 11 units? no, because p = 2x + 2(20) no, because p ≠ 2x + 2(20) yes, because p ≠ 2x + 2(20) yes, because p = 2x + 2(20)

Ahiker stands at an unknown elevation before he ascends 2 miles up a mountain to an elevation of 9 miles. find the elevation of the hiker before his ascent.