Ask
your own question, for FREE!

Mathematics

OpenStudy (anonymous):

What is the 7th term of the geometric sequence where a1 = –4 and a5 = –1,024

Still Need Help?

Join the QuestionCove community and study together with friends!

OpenStudy (anonymous):

The process: A geometric sequence means that the general term is given by the following expression for some constant \(C\). \[\Huge a_n=a_1 \cdot C^{n-1}\] Use this information to reason out the value of \(C\), and plug in \(n=7\).

OpenStudy (anonymous):

that doesnt make sense to me, can you explain

OpenStudy (anonymous):

Here, you are given \(a_1=-4\), so the terms are as follows, using the formula.\[a_1,a_2,a_3,a_4,\ldots=a_1,Ca_1,C^2a_1,C3a_1,\cdots=^-4,-4C,-4C^2,-4C^3,\ldots\]See how we multiply on the factor \(C\) each time? We can figure out that value, and find out \(a_7=C^6a_1\). (Note: click on any equation to make it bigger).

OpenStudy (anonymous):

Correction: \(C^3a_1\).

OpenStudy (anonymous):

|dw:1338153169254:dw| |dw:1338153321482:dw|

Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!

Join our real-time social learning platform and learn together with your friends!

Latest Questions

Camachojenny12:
small company has 20 employees. Six of these employees will be selected randomly to be interviewed as part of an employee satisfaction program.

3 hours ago
0 Replies
0 Medals

answerplsplsplspls:
Lily is a botanist who works for a garden that many tourists visit. The function f(s) = 2s + 30 represents the number of flowers that bloomed, where s is th

4 hours ago
0 Replies
0 Medals

Annamarie:
Identity Shaped by Conflict Summarize the conflict Marcus is facing.

4 hours ago
0 Replies
0 Medals

myiaxo:
List at least two technology tools that can help with calculating future value of an investment.

6 hours ago
0 Replies
0 Medals

myiaxo:
Evan opens a savings account with $5,000. He deposits $75 every month into the account that compounds annually and has a 0.

6 hours ago
0 Replies
0 Medals

56789123:
During a treasure hunt Cody walks 55.0 m south and 7.50 m to the west. What singl

6 hours ago
0 Replies
0 Medals

Jasmine2123:
A scientist calculated the energy required to break bonds in two unknown compounds, A and B.

6 hours ago
0 Replies
0 Medals

Glupo:
What is the mass (in grams) of 5.00 L of propane vapor (Cu2083Hu2088) at STP

7 hours ago
0 Replies
0 Medals