Purchase Solution

Subtract Matrices and Products

Not what you're looking for?

Ask Custom Question

2. Subtract the matrices:
[-1 7] [-6 -9]
[11 6] [-3 4]

3. Find the product:
(-6) (-1) (7) (-11)

4. What is the correct way to read "-x" aloud?

5. Solve for b:
D=abc

6. Solve for r:
20q+2r=4

7. 5-4(x-5) =9

9. Solve:
4(x-5) =4x-20

Solve for p:
5.5pr=3x-7pr=11q2+10pr

In 1992, the population of Seoul, South Korea was 17,334,000. In 1995, the population of Seoul was 19,065,000. Find the average of change of the population in people per year.

In 1990, the number of motor registered in the United States was 4.3 million. In 1996, the number of registered motorcycles was 3.8 million. Find the average rate of change of the number of registered motorcycles in motorcycles per year.

Use the given values to write an equation that relates x and y.

x=3, y=15

x=6, y=3

x= -4, y= -4

x=10, y= -2

x=3.5, y=7

x=-12, y=4

Purchase this Solution

Solution Summary

The expert subtracts the matrices and finds the products.

Solution Preview

The answers are attached.

9. Solve:
4(x-5) =4x-20
Left hand side = ...

Purchase this Solution


Free BrainMass Quizzes
Solving quadratic inequalities

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

Graphs and Functions

This quiz helps you easily identify a function and test your understanding of ranges, domains , function inverses and transformations.

Exponential Expressions

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

Probability Quiz

Some questions on probability

Multiplying Complex Numbers

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