De las ganancias de una escuela 2/5 se utlilizan en nomina 1/8 en electricidad 1/12 en mantenimiento 1/4 en limpieza y el resto en seguridad a) que fraccion se utliliza en seguridad

b) oredena todos los rubros de menor o mayor

To complete your spring schedule, you must add calculus and physics. at 9: 30, there are three calculus sections and two physics sections; while at 11: 30, there are two calculus sections and three physics sections. how many ways can you complete your schedule if your only open periods are 9: 30 and 11: 30?

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

In a test for esp (extrasensory perception), a subject is told that cards only the experimenter can see contain either a star, a circle, a wave, or a square. as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. a subject who is just guessing has probability 0.25 of guessing correctly on each card. a. the count of correct guesses in 20 cards has a binomial distribution. what are n and p? b. what is the mean number of correct guesses in 20 cards for subjects who are just guessing? c. what is the probability of exactly 5 correct guesses in 20 cards if a subject is just guessing?