Question

please help how do u do this!!
Evaluate each expression and match with the correct value.
P(7,5)
P(8,2)
C(5,2)
C(12,7)
C(12,4) * C(8,3)
Choose... 2720 27,720 10 792 2520 56

Answer 1

are you working out of the Glencoe Algebra II book

Answer 2

no

Answer 3

I was just wondering because these questions are in my book too

Answer 4

this one I am not to good at

Answer 5

can u try i have no idea

Answer 6

are you using a book or is it just worksheets

Answer 7

worksheets

Answer 8

does it give you and idea of what section it might be from

Answer 9

nooo

Answer 10

okay is this different questions or all one

Answer 11

all one

Answer 12

so choose at the problem is the answers

Answer 13

because if that is the case then this would be what you do
nPr(8,2) 56 = 8!/(8-2)! = 8*7*6*5*4*3*2*1/6*5*4*3*2*1
nPr(7,5) 2520 = 7!/(7-5)! = 7*6*5*4*3*2*1/2*1
nCr(5,2) 10 = 5!/(5-2)!*2! = 5*4*3*2*1/(3*2*1)(2*1)
nCr(12,7) 792
nCr(12,4)*nCr(8,3) 27720

Answer 14

im lost

Answer 15

okay I will redo P(8,2)
P(8,2) 8!/(8-2)! =
8*7*6*5*4*3*2*1/6*5*4*3*2*1

Answer 16

which equals 56