![subject](/tpl/images/cats/mat.png)
Mathematics, 25.06.2020 03:01 marioshadowman12
Determine whether each statement is true or false. If a statement is true, give a reason or cite an appropriate statement from the text. If a statement is false, provide an example that shows the statement is not true in all cases or cite an appropriate statement from the text.
1. Adding a multiple of one column of a square matrix to another column changes only the sign of the determinant.
a. False, adding a multiple of one column to another does not change the value of the determinant.
b. False, adding a multiple of one column to another changes the sign of the determinant.
c. True, adding a multiple of one column to another changes only the sign of the determinant.
d. False, adding a multiple of one column to another changes the value of the determinant by the multiple of the minor.
2. Two matrices are column-equivalent when one matrix can be obtained by performing elementary column operations on the other.
a. False, row-equivalent matrices are matrices that can be obtained from each other by performing elementary column operations on the other.
b. True, column-equivalent matrices are matrices that can be obtained from each other by performing elementary row operations on the other.
c. False, row-equivalent matrices are matrices that can be obtained from each other by performing elementary row operations on the other.
d. True, column-equivalent matrices are matrices that can be obtained from each other by performing elementary column operations on the other.
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 13:10
What graph correctly matches the equation y equals two negative x
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 17:30
To which sets of numbers does -12 belong? choose all answers that are correct. a) natural numbers b) integers c) real numbers d) irrational numbers
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 19:00
Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?
Answers: 3
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 21:00
The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years
Answers: 1
You know the right answer?
Determine whether each statement is true or false. If a statement is true, give a reason or cite an...
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 22.01.2021 18:40
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 22.01.2021 18:40
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 22.01.2021 18:40
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 22.01.2021 18:40
![question](/tpl/images/cats/ap.png)
Advanced Placement (AP), 22.01.2021 18:40
![question](/tpl/images/cats/mat.png)
Mathematics, 22.01.2021 18:40
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 22.01.2021 18:40
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 22.01.2021 18:40
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 22.01.2021 18:40