Select the sequences that are geometric.
Which statements describe characteristics of a geometric sequence? Check all that apply.
A wrestling tournament begins with 128 competitors. In the first round, each competitor has 1 match against another wrestler. The winner of each match moves on to the next round until there is a winner. Write a sequence in which the terms represent the number of players still in the tournament at the end of each round. Describe the sequence? How many rounds are in the tournament?
the correct sequence with a1 = 64 a description of the common ratio, r = 0.5 the correct number of rounds, 7
The first four terms of a geometric sequence are 108, 36, 12, 4, …What is the common ratio?

The fish population in a lake decreases by 2% each year.What is the common ratio?
A sequence is defined by the following:What is the 4th term?

What is a8?
mc001-1.jpg




Question text not available
First I substituted 121.5 for an, 4 for n, and 3 for r in the general form. Then I solved to find a1 = 4.5. Finally, I substituted 4.5 for a1 and 3 for r in the general form to get an = 4.5 ⋅ 3n−1.
Did your response include the following?
Did your response include the following?
Did you find these answers helpful?