What two numbers multiply to -45 and add up to 12?

Write the system of equations represented by the matrix. 0 1 2 4 -2 3 6 9 1 0 1 3

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?

Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9