Identify the graph of f(x)=x^2-8x with its vertex, axis of symmetry and x-intercepts labeled.

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0

Acircle has a circumference of 7.850 units. what is its radius?

Suppose that in 2008 , 840,800 citizens died of a certain disease assuming the population of teh country is 399 miliion, what is the mortality rate in units of deaths per 100,000 people?