3 The net of a triangular prism is shown
below
8.5 cm
10 cm
10 cm
10 cm
What is the total surface area of the prism?
A 470 cm? C 390.5 cm?
B 385 cm?
D 342.5 cm?
The random variable x represents the number of phone calls an author receives in a day, and it has a poisson distribution with a mean of 8.7 calls. what are the possible values of x
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