How many combinations of 5 students can a teacher choose from 30 students?

Question

shelby1290 · Answer

the teacher can choose 6 combinations of 5 students

shelby1290 · Answer

30 divided by 5 = 6

shelby1290 · Answer

@Venomous^^^ 
 and to double check do 6x5 and you'll get 30 
so 6 combinations of 5 students is correct!

anonymous · Answer

it is a permutation question, and i think it is also a combination question.

anonymous · Answer

How many combinations of 5 students can a teacher choose from 30 students?
(Points : 4)
       150

       142,506

       810,000

       17,100,720

anonymous · Answer

What is the value of 7P3 ?
(Points : 4)
       35

       56

       210

       840

anonymous · Answer

and i need these answers fast so please help me!!! thank you

shelby1290 · Answer

for your first question the answer is  142,506

shelby1290 · Answer

attachment

shelby1290 · Answer

and for your second question it's 210 because...
7P3= 7!/(7-3)!
= 7!/4!
= 7*6*5
= 210

shelby1290 · Answer

@Venomous there^

anonymous · Answer

WOW! Thank you @shelby1290 , you really saved me!!! thanks again!!! :)

anonymous · Answer

Felipe can choose 1 snack from a box containing 3 different granola bars, 4 different kinds of fruit, and 2 different kinds of chips. How many ways can Felipe choose a snack?
(Points : 4)
       5

       9

       14

       24
 
Can you help me with this one to real quick? thanks

shelby1290 · Answer

i think its 24

anonymous · Answer

okay thank you!