Use the definition of continuity and the properties of limits to show that f(x)=x^2-49/(x^2+6x-7)(x^2+14x+49) is continuous at x=5

Which shows the pre image of triangle xyz

The human resources manager at a company records the length, in hours, of one shift at work, x. he creates the probability distribution below. what is the probability that a worker chosen at random works at least 8 hours? probability distribution px(x) 6 hours 7 hours 8 hours 9 hours 10 hours 0.62 0.78 пол

What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid? explain your reasoning.