Kim has 8 coins in a bag. There are three £1 coins and five 50 pence coins. Kim takes at random, 3 coins from the bag. Work out the probability that she takes exactly £2.50

Charlie tosses five coins.what is the probability that all five coins will land tails up.

Which equation represents h for right triangle abc

Find the volume v of the solid obtained by rotating the region bounded by the given curves about the specified line. y = x â’ 1 , y = 0, x = 5; about the x-axis v = sketch the region. sketch the solid, and a typical disk or washer.