Mathematics, 10.12.2021 03:00, nanagardiner08
A bag contains n counters. one of the counters is blue and the rest is red. two counters are taken at random.
a) express in terms of n the probability that a counter of each counter is chosen.
b) the probability that a counter of each colour is 0.125. work out the number of red counters
Answers: 1
Mathematics, 21.06.2019 19:30, kelseybell2707
If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).
Answers: 1
Mathematics, 22.06.2019 00:30, mitchellmarquite
Ahovercraft takes off from a platform. its height (in meters), xx seconds after takeoff, is modeled by: h(x)=-2x^2+20x+48h(x)=−2x 2 +20x+48 what is the maximum height that the hovercraft will reach?
Answers: 3
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