Answer:
a) 3
b) 364
Step-by-step explanation:
A geometric sequence in explicit form is where is the first term and is the common ratio.
We are given:
.
What is a) r?
What is b) the sum of the first 6 terms?
So I'm going to use my first equation and use my explicit form to find those terms in terms of r:
Divide both sides by :
.
So part a is 3.
Now for part b).
We want to find .
So far we have:
.
We also haven't used:
.
I'm going to find these terms in terms of r (r=3).
You have like terms to add:
Divide both sides by 972:
The first term is 1 and the common ratio is 3.
The terms we wrote can be simplify using a substitution for the first term as 1:
.
Now we just need to find the sum of those six terms:
1+3+9+27+81+243=364.
5 pounds - 1.89
3 pounds - 1.99
1 pound - 2.05
In this case, the 5 pounds of chicken is the cheapest by exactly one dime.
use the distributive property
5x(3x+4)
15x^2 +20x
Answer:B is 9 times C
Step-by-step explanation:
Answer:
1)A
2)B
3)A
4)C
5)D
Step-by-step explanation: