How many cubic feet of gas will a rectangular gas tank hold if it measures 15 ft x 4 ft x 6 ft?

If square root x = -7, then x= -49 true or false

Television sizes are based on the length of the diagonal of the television's rectangular screen. so, for example, a 70-inch television is a television having a diagonal screen length of 70 inches. if a 70 inch television's diagonal forms a 29°angle with the base of the screen, what is the vertical height (1) of the screen to the nearest inch? 70 inhin

Which statement justifies why angle ebc measures 90?