in a shipment of 20 computers, 3 are defective. three computers are randomly selected and tested. what is the probability that all three are defective if the first and second ones are not replaced after being tested?

Need ! discuss how to convert the standard form of the equation of a circle to the general form. 50 points

Which term best describes the association between variables a and b? no association a negative linear association a positive linear association a nonlinear association a scatterplot with an x axis labeled, variable a from zero to ten in increments of two and the y axis labeled, variable b from zero to one hundred forty in increments of twenty with fifteen points in a positive trend.

Marina baked cookies. she gave 3/4 of the cookies to the scout bake sale. she shared the remaining 6 cookies with her friends. how many cookies did marina bake?