Answer:
1. 5040
2. 20
Step-by-step explanation:
1. using the formula for permutation
nPr=n!/(n-r)!
10P4 = 10!/(10-4)!
=10*9*8*7*6!/6!
then we are left with
=10*9*8*7
=5040
2.using the formula for combination
nCr=n!/(n-r)!r!
6C3=6!/(6-3)!3!
=6*5*4*3!/3!3!
=6*5*4/3*2*1
=20
Its adding 9 every time.
-3, 6, 15, 24, 33, 42, 51, 60
-1\4
Step-by-step explanation:
find the gradient of the line
Answer:
from now on don't ask same qn two times or more it would be waste of your points
got it??