Purchase Solution

Geometric sequences, Gauss-Jordan, and fraction perations

Not what you're looking for?

Ask Custom Question

1. Find the sum of the first five terms of the geometric sequence.
A=3, r=2
2
a. 93 b. 5 c. 1 d. 93
2 2

2. Use the Gauss-Jordan method to solve the system of equations.

x - y + 3z = 16
3x + z = 4
x + 2y + z = -4

a. No solution b. (4, 0, -4) c. (0, -4, 4) d. (4, -4, 0)

3. Perform the indicated operation. Give the answer in lowest terms.

8p - 8 / 10p - 10
P 6p^2

a. 5 b. 80p^2 + 160p +80 c. 24p d. 48p^3 - 48p^2
24p 6p^3 5 10p^2 - 10p

Purchase this Solution

Solution Summary

This shows how to find the sum of the first terms of a given geometric sequence, use Gauss-Jordan to solve an equation, and perform operations on polynomial fractions.

Solution Preview

Please see the attached file.

1. Find the sum of the first five terms of the geometric sequence.
A=3, r=2
2
a. 93 b. 5 c. 1 d. 93
2 2
The general term of the geometric sequence is
, where n = 1, 2, 3, ...
Or
So the first five terms are:

Therefore, the sum of ...

Purchase this Solution


Free BrainMass Quizzes
Multiplying Complex Numbers

This is a short quiz to check your understanding of multiplication of complex numbers in rectangular form.

Probability Quiz

Some questions on probability

Geometry - Real Life Application Problems

Understanding of how geometry applies to in real-world contexts

Exponential Expressions

In this quiz, you will have a chance to practice basic terminology of exponential expressions and how to evaluate them.

Solving quadratic inequalities

This quiz test you on how well you are familiar with solving quadratic inequalities.