Problem Set A 1. Given the following matrix: 13 0 t2 - 1] F = 6 -8 7 t 2 -7 Determine answers to the following: a. State the dimensions of the matrix. b. If cofactor 13 (C13) is equal to 36, calculate the value of the element13 (a13). C. Using your answers from part b. above, calculate the matrix that will be derived from the expression -2F + ½ D, where D = F * 413. d. After completing Part c. above, state the name of the resultant matrix. 2. Matrix A below is a singular matrix, calculate the value(s) of q. q A = 3 2 3. Three hundred and sixty-eight (368) students of The UWI Global Campus are registered to do ECON1003. The ethnicity of the registered students is Black, East Indian and Latino. If there are four times many East Indian students as there are twice as many Black students plus Latino students and thrice as many East Indian students as there are four hundred and ninety- one students minus twice as many Latino students. a. State three variables to represent the events presented in the above information. b. Write three linear equations to represent the above information. c. Using your answer from part b. above, write the linear equations in matrix form. d. Using your answer from part c. above, use a suitable method of your choice to determine the ethnic group with the highest number of students registered to do ECON1003.
Problem Set A 1. Given the following matrix: 13 0 t2 - 1] F = 6 -8 7 t 2 -7 Determine answers to the following: a. State the dimensions of the matrix. b. If cofactor 13 (C13) is equal to 36, calculate the value of the element13 (a13). C. Using your answers from part b. above, calculate the matrix that will be derived from the expression -2F + ½ D, where D = F * 413. d. After completing Part c. above, state the name of the resultant matrix. 2. Matrix A below is a singular matrix, calculate the value(s) of q. q A = 3 2 3. Three hundred and sixty-eight (368) students of The UWI Global Campus are registered to do ECON1003. The ethnicity of the registered students is Black, East Indian and Latino. If there are four times many East Indian students as there are twice as many Black students plus Latino students and thrice as many East Indian students as there are four hundred and ninety- one students minus twice as many Latino students. a. State three variables to represent the events presented in the above information. b. Write three linear equations to represent the above information. c. Using your answer from part b. above, write the linear equations in matrix form. d. Using your answer from part c. above, use a suitable method of your choice to determine the ethnic group with the highest number of students registered to do ECON1003.
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter2: Systems Of Linear Equations
Section2.2: Direct Methods For Solving Linear Systems
Problem 22EQ: Consider the matrix A=[2314]. Show that any of the three types of elementary row operations can be...
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answer question 3 (D) accurately, and also show clear working out please
![Problem Set A
1. Given the following matrix:
13
0
t2 - 1]
F =
6
-8
7
t
2
-7
Determine answers to the following:
a.
State the dimensions of the matrix.
b. If cofactor 13 (C13) is equal to 36, calculate the value of the element13 (a13).
C.
Using your answers from part b. above, calculate the matrix that will be derived
from the expression -2F + ½ D, where D = F * 413.
d. After completing Part c. above, state the name of the resultant matrix.
2. Matrix A below is a singular matrix, calculate the value(s) of q.
q
A =
3 2
3. Three hundred and sixty-eight (368) students of The UWI Global Campus are registered to do
ECON1003. The ethnicity of the registered students is Black, East Indian and Latino. If there
are four times
many East Indian students as there are twice as many Black students plus
Latino students and thrice as many East Indian students as there are four hundred and ninety-
one students minus twice as many Latino students.
a. State three variables to represent the events presented in the above information.
b. Write three linear equations to represent the above information.
c. Using your answer from part b. above, write the linear equations in matrix form.
d. Using your answer from part c. above, use a suitable method of your choice to
determine the ethnic group with the highest number of students registered to do
ECON1003.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd0a7b82f-3028-496c-bf9d-a12e9e6efae0%2Fcff88768-0d66-4b0e-8f62-f6d86fbd2c61%2Fofid0f_processed.png&w=3840&q=75)
Transcribed Image Text:Problem Set A
1. Given the following matrix:
13
0
t2 - 1]
F =
6
-8
7
t
2
-7
Determine answers to the following:
a.
State the dimensions of the matrix.
b. If cofactor 13 (C13) is equal to 36, calculate the value of the element13 (a13).
C.
Using your answers from part b. above, calculate the matrix that will be derived
from the expression -2F + ½ D, where D = F * 413.
d. After completing Part c. above, state the name of the resultant matrix.
2. Matrix A below is a singular matrix, calculate the value(s) of q.
q
A =
3 2
3. Three hundred and sixty-eight (368) students of The UWI Global Campus are registered to do
ECON1003. The ethnicity of the registered students is Black, East Indian and Latino. If there
are four times
many East Indian students as there are twice as many Black students plus
Latino students and thrice as many East Indian students as there are four hundred and ninety-
one students minus twice as many Latino students.
a. State three variables to represent the events presented in the above information.
b. Write three linear equations to represent the above information.
c. Using your answer from part b. above, write the linear equations in matrix form.
d. Using your answer from part c. above, use a suitable method of your choice to
determine the ethnic group with the highest number of students registered to do
ECON1003.
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