Twenty percent of the shoes manufactured by a company are black. One shoe is chosen and replaced. Then a second shoe is chosen. What is the probability that neither shoe is black?

In an experiment you are to flip a two sided coin 100 times and record 55 heads up and 45 tails up determine the theoretical and experimental probability of getting a heads up in the experiment.

What is the slope of the line that contains the points (4,8) and (9,8)? what type of line is it?

The radius of the circle is 4 cm and the measure of the central angle is 90° the area of the sector with a central angle measuring 90° and radius of length 4 cm is vt cm the triangle in the sector is 4 cm the area of the triangle is v/cm² the area of the segment of the circle is (471 - ) cm?