En una clase universitaria de ciencias hay 30 alumnos, de los cuales 5 estudian física, 15 matemáticas y 10 biología. De estos mismos, 22 son mujeres y el resto hombres. ¿cuál sería la probabilidad de que al escoger un estudiante al azar para pasar al pizarrón éste fuese hombre y estudiante de matemáticas?

The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?

1. are the corresponding angles congruent 2. find the ratios of the corresponding sides 3. is triangle jkl congruent to triangle rst? if so what is the scale factor

Of the 304 people who attended a school play, 5/8 were students. how many of the people who attended were students.