What are the benefits and disadvantages of using three forms of a quadratic equation Standard Form, Intercept Form, and Vertex Form.

The diagram shows a 7cm by 6cm rectangle based pyramid. all the diagonal sides - ta, tb, tc and td are length 10cm. m is midpoint of rectangular base. work out height mt to 1 decimal place

If x=-3 is the only x-intercept of the graph of a quadratic equation, which statement best discribes the discriminant of the equation?

The longer leg of a 30° 60° 90° triangle is 16 times square root of three how long is a shorter leg