Mathematics, 19.06.2020 08:57 deb2710
Please help! Correct answer only, please! Consider the matrix shown below: Find the inverse of the matrix A: (i. e Find A^-1).
Answers: 3
![A=\left[\begin{array}{cc}a&b\\c&d\end{array}\right]\qquad \rightarrow \qquad A^{-1}=\dfrac{1}{ad-bc}\left[\begin{array}{cc}d&-b\\-c&a\end{array}\right]](/tpl/images/0689/8339/2c3c9.png)
![A=\left[\begin{array}{cc}2&5\\3&8\end{array}\right] \qquad \rightarrow \qquad A^{-1}=\dfrac{1}{2(8)-5(3)}\left[\begin{array}{cc}8&-5\\-3&2\end{array}\right]\\\\\\\\.\qquad \qquad \qquad \qquad \qquad \qquad \quad =\dfrac{1}{1}\left[\begin{array}{cc}8&-5\\-3&2\end{array}\right]\\\\\\\\.\qquad \qquad \qquad \qquad \qquad \qquad \quad =\left[\begin{array}{cc}8&-5\\-3&2\end{array}\right]](/tpl/images/0689/8339/cf1ec.png)
Another question on Mathematics
Mathematics, 21.06.2019 17:20
Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?
Answers: 2
Mathematics, 21.06.2019 19:30
Solve the following simultaneous equation by using an algebraic method (either substitution or elimination) 2x + 3y=-4 4x-y=11
Answers: 1
Mathematics, 21.06.2019 23:50
Mariah is randomly choosing three books to read from the following: 5 mysteries, 7 biographies, and 8 science fiction novels. which of these statements are true? check all that apply. there are 20c3 possible ways to choose three books to read. there are 5c3 possible ways to choose three mysteries to read. there are 15c3 possible ways to choose three books that are not all mysteries. the probability that mariah will choose 3 mysteries can be expressed as . the probability that mariah will not choose all mysteries can be expressed as 1 −
Answers: 1
Mathematics, 22.06.2019 00:30
Which of these side lengths could form a triangle a) 2 cm , 2 cm , 4 cm b) 3 cm , 5 cm , 10 cm c) 3 cm , 4 cm , 5 cm d) 4 cm , 8 cm , 15 cm
Answers: 3
You know the right answer?
Please help! Correct answer only, please! Consider the matrix shown below: Find the inverse of the m...
Questions
Mathematics, 25.02.2022 01:00
Geography, 25.02.2022 01:00
Mathematics, 25.02.2022 01:00
Computers and Technology, 25.02.2022 01:00
Mathematics, 25.02.2022 01:00
Mathematics, 25.02.2022 01:00
Social Studies, 25.02.2022 01:00
Physics, 25.02.2022 01:00
Engineering, 25.02.2022 01:00
Mathematics, 25.02.2022 01:00
Mathematics, 25.02.2022 01:00
