Adding/Subtracting Matrices
Find the sum or difference:
[(3,2), (8,-1)]+[(-2,2), (4,5)]
[(1,4), (12,4)]
Find BD if possible. If it is not possible, label it undefined.
B=[(0,2),(-2,1),(-1,0)] D=[(1,0),(0,1)]
[(0,2),(-2,1),(-1,0)]
Find the determinant of the following matrix.
[(3,9),(3,2)]
-21
3x2
Where did Mrs. Presnell attend college?
University of Georgia
Find the sum or difference:
[(3, -4), (1, 2), (-7,1)]-[(0,5), (-3,2), (-2,4)]
[(3, -9), (4, 0), (-5, -3)]
Find the matrix representing 5D - A
D = [(1,0),(0,1)] A=[(1,-1),(3,-2)]
[(4,1),(-3,7)]
Find the determinant of the following matrix:
[(1,2),(0,3)]
If Matrix A is 3x5 and Matrix B is 5x2, what are the dimensions of the resulting product AB?
3x2
What is Mrs. Presnell's son's name?
Elliott
Solve for x:
[(8,11),(13,14),(4,X)]-[(3,4),(4,2),(1,9)]=[(5,7),(9,12),(3,2)]
x=11
Find the product. If not possible, label it undefined.
[(2,-1),(5,3)][(0,4),(-3,1)]
[(3,7),(-9,23)]
Find the determinant and the inverse of the following matrix, if possible.
[(0,2),(4,1)]
det = -8
inverse: -1/8 1/4
1/2 0
What is the formula for finding the determinant of a 2x2 matrix?
What is Mrs. Presnell's husband's name?
Riley
Solve the following equation:
[(x,-4),(0,4)]-[(1,-1),(-2,2)]=[(-2,-3),(2,2)]
x=-1
Find the product if possible. If it is not possible, label it undefined.
[(2, -1, 6)][(2),(-1),(6)]
[41]
Find the inverse of the following matrix, if possible.
[(3,4),(3,4)]
No inverse
0
Where did Mrs. Presnell go to high school?
South Paulding
Find the value of each variable:
[(8,6),(-2,0)]+[(11,-2),(3,x)]=[(19,y),(z,6)]
x=6, y=4, z=1
Find the product if possible. If it not possible, label it undefined.
[(5), (9)][(0,-1),(4,6)]
Undefined
Find the value of x that makes the determinant 12.
[(4,x),(2,5)]
x=4
What is the equation for finding the inverse of a 2x2 matrix?
1/det)[(d,-b),(-c,a)]
What year did Mrs. Presnell graduate high school?
2014