What is 863.141 in expanded form

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

Select the number of ways in which a line and a circle can intersect

The distance of a chord from the centre of a circle is 12cm and the lenght of the chord is 10cm. find the radius of the circle