Answer:
see below
Step-by-step explanation:
The formula for the sum of an infinite geometric series with first term a1 and common ratio r (where |r| < 1) is ...
sum = a1/(1 -r)
Applying this to the given series, we get ...
a. sum = 5/(1 -3/4) = 5/(1/4) = 20
b. sum = d/(1 -1/t) = d/((t-1)/t) = dt/(t-1)
_____
The derivation of the above formula is in most texts on sequences and series. In general, you write an expression for the difference of the sum (S) and the product r·S. You find all terms of the series cancel except the first and last, and the last goes to zero in the limit, because r^∞ → 0 for |r| < 1. Hence you get ...
S -rS = a1
S = a1/(1 -r)
Answer:
A
Step-by-step explanation:
To sovle this we must combine the numbers togther and the variables togther.
We have:
8c+6-3c-2
Lets take out the c's and combine them:
8c -3c
=
5c
Now lets take out the numbers:
6-2
=
4
Now lets put these back together and we get the expression:
5c+4
This looks like A.
Hope this helps! :D
━━━━━━━☆☆━━━━━━━
▹ Answer
<em>$1.30</em>
<em></em>
▹ Step-by-Step Explanation
To find the price per pound, you have to divide the total amount of money by the amount of pounds:
$7.80/6 lbs = $1.30
Hope this helps!
CloutAnswers ❁
━━━━━━━☆☆━━━━━━━
Answer:
y=3/4x+2
Step-by-step explanation:
I found this by using desmos graphing calculator
5000-x is the number of dollars in the mutual fund
