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a) Expand and simplify (x + 4)(x - 7)​

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)

Find the condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in a.p.

3.4a=57.8 what is the the value of a