Aregular octagon rotates 360° about its center. how many times does the image of the octagon coincide with the preimage during the rotation? 1. 2 2. 4 3. 6 4. 8

If eh = hg and hg=16, find the diameter of k

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable