AdenaBulfer AdenaBulfer

03-09-2014
Mathematics

contestada

A teacher is choosing 4 students from a class of 30 to represent the class at a science fair. In how many ways can the teacher choose the students?

Respuesta :

konrad509 konrad509

03-09-2014

[tex]{30 \choose 4}=\frac{30!}{4!26!}=\frac{27\cdot28\cdot29\cdot30}{2\cdot 3\cdot4}=27\cdot7\cdot29\cdot5=27405[/tex]

Answer Link

Otras preguntas

What's the area please help?

ILL MARK YOU THE BRAINLIST

Evaluate 8d, when d=12 Evaluate 75/d (75 divide by d), when d = 5 Evaluate 6p^2 + 8(6 times p to the second power plus 8), when p = 4

The RANGE of the graphed function is A) [-2,5] B) {-2, 2,5) ) {1,3,4,5) D) {(1,5), (3,5). (4,2), (6,-2)}

This table gives a few (x,y) pairs of a line in the coordinate plane. x y -56 −66 -42 58 -28 50 What is the y-intercept of the line?

Which statement BEST explains how prices in a communist economy, when compared to a capitalist economy, are decided? A) The government sets the prices, not sup

if the perimeter is 36m ,find the area of a rectangle

Can you please help me!! I will give you brainlest!!!!

Must, Mustn’t, have to, Don’t have to

What is the total surface area of the rectangular pyramid whose net is shown?