Given the following lengths, find the length of side CD to the nearest tenth. AD = 15

AB = 19

BC = 17

This is different from the first one can someone me

How many glue sticks are in a basket containing 96 scissors, if the ratio of glue sticks to scissors is 19 to 57.

What is the value of the discriminant, b2 ? 4ac, for the quadratic equation 0 = x2 ? 4x + 5, and what does it mean about the number of real solutions the equation has?