22. A husband and a wife apprear in an interview for two vacancies for the same post. The probability of husband's selection is 3÷5 and that of wife's selection is 1÷5. Find the probability that: (i) both are selected
2) exactly one is selected
3) none is selected​

Sorry guys but as you have a small brain

The average number of vehicles waiting in line to enter a parking lot can be modeled by the function f left parenthesis x right x squared over 2 left parenthesis 1 minus x right parenthesis endfraction , where x is a number between 0 and 1 known as the traffic intensity. find the rate of change of the number of vehicles waiting with respect to the traffic intensity for the intensities (a) xequals0.3 and (b) xequals0.6.

To solve the system of equations below, pedro isolated the variable y in the first equation and then substituted it into the second equation. what was the resulting equation? { 5y=10x {x^2+y^2=36