Answer:
A. The permutations rule takes order into account, whereas the combinations rule does not.
Step-by-step explanation:
Permutation is an orderly form of combination. They both deal with numbers an element can be arranged in different ways.
The main difference is that permutation takes into account the order in which the arrangement takes place while combination doesn’t take that into account.
Combination formula: nCr = n! / r! * (n - r)!
Permutation formula: P(n,r)=n! (n−r)!
Answer:
1260
Step-by-step explanation:
polygon having sides is 9
so sum will be 1260
Let us assume that 4 - 5h = 0
we need to the value of h.
4 - 5h = 0
-5h = -4
-5h/-5 = -4/-5
h = 4/5
To check: substitute h by its value.
4 - 5h = 0
4 - 5(4/5) = 0
4 - 20/5 = 0
4 - 4 = 0
0 = 0
Answer:
No real solutions.
Step-by-step explanation:
729s^-5 = 729/s^5
729/s^5 = 3^2(1-s) = 9(1-s)
729=9(1-s)(s^5)
(1-s)(s^5)=81
s^5-s^6=81
Because 81 > 0 this means s^6 must be less than s^5. This is never possible as 6 is even so is always positive and is always greater in magnitude than s^5. The only time this isnt the case is when s is a decimal less than 1, but then the difference would be also less than 1 and not 81.
2y = -6x + 42.....in y = mx + b form, the m stands for the slope
y = -6/2x + 42/2....reduce
y = -3x + 21.....so the slope is -3
