Por el revelador y la impresion de cada rollo de 24 fotos cobran $55,00 (cincuenta y cinco dolares),si este mes se hace un descuento del 30%, ¿ cuantos pagara Martha por la impresion de dos rollos? Con la respuesta y procedimientos x favor

Successful implementation of a new system is based on three independent modules. module 1 works properly with probability 0.96. for modules 2 and 3, these probabilities equal 0.95 and 0.90. compute the probability that at least one of these three modules fails to work properly.

Landon wrote that 3−2.6=4. which statement about his answer is true?

Assume that there is a 11% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on four independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?