Solve the equation 2.8x = -9.24
a. 13.3
b. -12.04
c. 12.04
d. -0.3030

Identify a1 and r for the geometric sequence an= -256(-1/4) n-1

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

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)