If the determinant of this matrix is -19, what is the value of a?
A. 3
B. 4
C. 5
...
![subject](/tpl/images/cats/mat.png)
Mathematics, 19.03.2021 18:50 anthonycortez4993
If the determinant of this matrix is -19, what is the value of a?
A. 3
B. 4
C. 5
D. 6
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 17:00
Which simplifys to a+ b? a-(1-b)+1 -(1-a)-b+1 (a--1) -1)+1
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 17:30
Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 21:30
In a test for esp (extrasensory perception), a subject is told that cards only the experimenter can see contain either a star, a circle, a wave, or a square. as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. a subject who is just guessing has probability 0.25 of guessing correctly on each card. a. the count of correct guesses in 20 cards has a binomial distribution. what are n and p? b. what is the mean number of correct guesses in 20 cards for subjects who are just guessing? c. what is the probability of exactly 5 correct guesses in 20 cards if a subject is just guessing?
Answers: 1
You know the right answer?
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 02.09.2020 02:01
![question](/tpl/images/cats/mkx.png)
Arts, 02.09.2020 02:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 02.09.2020 02:01
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/en.png)
English, 02.09.2020 02:01
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 02.09.2020 02:01
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 02.09.2020 02:01
![question](/tpl/images/cats/en.png)
English, 02.09.2020 02:01
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/fizika.png)
Physics, 02.09.2020 02:01
![question](/tpl/images/cats/mat.png)
Mathematics, 02.09.2020 02:01
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/health.png)
Health, 02.09.2020 02:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 02.09.2020 02:01