If using the method of completing the square to solve the quadratic equation x^2-6x-34=0 witch number would have to be added to complete the square

It takes a total of 6 hours to fill up an inground backyard pool using a standard house. a function can represent this situation to represent the amount of water in the pool until it is full a function of time the hose is running. determine the domain for the function

Complete the standard form of the equation that represents the quadratic relationship displayed above, where a, b, and c are rational numbers.

At the beginning of 1974/75,2 years a man invested #2000 in a bank at 12.5% compound interest, if it degree #650 at the end of each two years to pay his son's school fees, after payment of interest to pay his son's school fees, how much did he have left at the beginning of the 1978/79 school year?