Which expression is not equivalent to the other three? a) 2x − 2.5 + 3x − 3 b) 5(x − 1.1) c) 5(x − 5.5) d) 5x − 5.5

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)

Solve the equation using the given values: x= -2.5; y= -7.51. 2xy + 2x²

Using the quadratic formula find the zeros of the given polynomial -5x^2+3x-11