An urn contains 5 white ball and 8 black balls. 4 balls are randomly selected. a. with replacement, what is the probability that the first 3 are black and the 4 the is white?

Can't gugys answer the ratio question. this is urgent the plans of a building is drawn toward scale of 1: 1000. kfc the foyer on the plans measures 62mm by 54mm, how large is the foyer in real life?

1. are the corresponding angles congruent 2. find the ratios of the corresponding sides 3. is triangle jkl congruent to triangle rst? if so what is the scale factor

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.