A curve has the equation y = x2 – 14x + 20 The turning point of the curve is at (a, -29)
a) By completing the square, or otherwise, work out the value of a.
Your final line must say, a=..
I​

Choose the correct slope of the line that passes through the points (1, -3) and (3, -5)

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?

Aword processing program requires a 7- digit registration code made up of the digits 1,2,4,5,6,7 and 9 each number has to be used and no number can be used mor than once how many codes are possible