We have been given two expressions 
. We are asked to find the value of each.
To find 9P9, we will use permutations formula.
, where
P = Number of permutations,
n = The total number of objects in the set,
r = Number of objects being chosen from the set.
Using 
To find 9C9, we will use combinations formula.
, where
C = Number of combinations,
n = The total number of objects in the set,
r = Number of objects being chosen from the set.
Using
Cancelling out 
, we will get:
The answers differ because order. With permutations we care about the order of the elements, while with combinations we don't.
Answer:
$14.4
Step-by-step explanation:
I don't quite understand this question, but this is what I think
Answer:
Step-by-step explanation:
Take the pre-sale price.
Divide the original price by 100 and multiply it by 30.
Take this new number away from the original one.
The new number is your discounted value.
Answer:
It is A ( sister helped me if it does not work it is B) \
Have a great day and MERRY CHRISTMAS!!!
Step-by-step explanation:
Answer: 0.648637
Explanation:
e^3x = 3 + 4
e^3x = 7
3x = In (7)
X = 0.648637
