Un mecanismo de transmisión consta de dos ruedas de fricción. La
rueda conductora tiene un radio de 40 mm, y gira a una velocidad de 100
rpm. Se desea conseguir un a velocidad de giro en el eje conducido de 25
rpm. ¿Cuál ha de ser el diámetro de la rueda conducida? ayuda por favor no lo entiendo

Triangle xyz has vertices x(1,3), y(0,0)

Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126 a. the attendance was never the same at both plays. b. the attendance was the same on day 5. the attendance was 231 at both plays on that day. c. the attendance was the same on day 13. the attendance was 295 at both plays on that day. d. the attendance was the same on days 5 and 13. the attendance at both plays on those days was 231 and 295 respectively.

Reduce fractions expressing probability to lowest terms. in 3,000 repetitions of an experiment, a random event occurred in 500 cases. the expected probability of this event is?