Im not really good at this circle stuff

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

If the discriminant if a quadratic equation is 4 which statement describes the roots?

6cm10 cma conical paper cup has dimensions as shown in the diagram. how much water can the cup hold when full?