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
When you say either, you add both A and B
0.3+0.4=0.7
Your answer is 0.70 which means 70%
The second Version of the game is greater for hitting the down button because substituting any number for x, the second equation would always end up having a greater amount.
For this question the answer would be x=-3 and x=-2
