Let <em>f(x)</em> be the sum of the geometric series,

for |<em>x</em>| < 1. Then taking the derivative gives the desired sum,

Answer:
352.05
Step-by-step explanation:
I don't know how to interpret the equation you wrote and so I just used annuities
I have attached my work below
Okay! Let's write out all the numbers:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Now, let's bold (or you can circle them... or do really anything to them as long as they are standing out to you) the even numbers (remember all even numbers are divisible by 2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Now let's list all the ones we highlighted:
2
4
6
8
10
12
14
Count up how many numbers that is.
You should get 7.
So, our answer is 7 out of 15 numbers.
Or as a fraction:
7/15 is our answer.
Note: A probability is the number of chances something has to happen out of the total number of chances. So in this case the number of even numbers out of the total number of numbers. You can apply this to any probability problem. Hope this helps!
Read more on Brainly.com - brainly.com/question/2150566#readmore
Answer:
9 because 3 x 4 = to 9
Step-by-step explanation:
Answer:
60.75
Step-by-step explanation:
First, you need to see how much one rose costs.
33.75/15 is 2.25
Next, you need to find out how many 27 roses costs.
2.25*27 is 60.75
Now you have your answer.
Hope this helps and is right!