racheltorres1221 racheltorres1221

16-06-2018
Mathematics

contestada

Use formula for permutations to calculate in how many ways you can select 2 people out of 10,

Respuesta :

sqdancefan sqdancefan

16-06-2018

The formula for permutations is
P(n, k) = n!/(n-k)!

For n=10 and k=2 the formula tells you
P(10, 2) = 10!/8! = 10*9 = 90
there are 90 ways to select 2 people from 10 when order matters.

Answer Link

Otras preguntas

In the context of the text, what are the effects of prejudice? How does Martin Luther King, Jr. Describe the prejudice that African Americans face? Cite evidenc

A baker made 7 pounds of dough. He used 2/9 of the dough to make sandwich rolls. How much of the dough is left over? The amount of dough left over is pounds.

durable goods such as appliances generally reach their target markets through ; goods such as automobile tires generally reach their target markets through . a.

9. Solve each system of equations using elimination. You must show your work for credit. (From Unit 2, Lesson2 14-16.) a. 2 x+5 y=12 4 x-y=2 b. 2 x-5 y=11 3

a cache may be organized such that: in one case, there are more data elements per block and fewer blocks in another case, there are fewer elements per block but

a tetherball is attached to a pole with a 2.0-m rope. it is circling at 0.20 rev/s. as the rope wraps around the pole, it shortens. how long is the rope when th

A tore owner ell a mix that i 45% cahew nut. How many pound of cahew hould he add to 36lb of thi mix to get a mix that i 60% cahew?

> In the figure, m1=(x+14)° and m2 = (3x)°.

Fill in the blank on mars, which has 0. 38 the gravity of Earth, the acceleration of a dropped ball will be _____.

If you have a professional e-mail address, it should always be included on your résumé. (T/F).