What is 5/11 as a decimal

Find the vertex of the function given below y=x^2-6x+1

Use set buikder notation to represent the following set: {, -2, -1, 0}

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm