What do you mean about first 10

Airline passengers arrive randomly and independently at the passenger-screening facility at a major international airport. the mean arrival rate is 10 passengers per minutes. compute the following probabilities. p(x = 4) p(x > 11)

Prove that (x-2)is factor of p (x)=2x³-3x²-17x+30

Use the distance formula to find the distance between (-3,5) and (3,1)