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Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10

True or false: dilations map angles of the same degrees

The roof of a farm silo is the shape of a hemisphere and is made of sheet tin. if the diameter of the silo is 126.5 feet, how much sheet tin is needed to make the roof? (use π = 3.1416.)