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 inverse of the following matrix.
[(3,9),(3,2)]
[(-2/21,3/7),(1/7,-1/7)]
Solve the following system of equations.
-20x+8y=24
-10x+2y=16
(-2,-2)
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 5D - A
D = [(1,0),(0,1)] A=[(1,-1),(3,-2)]
[(4,1),(-3,7)]
Find the inverse of the following matrix:
[(1,2,-2),(0,3,2),(1,-1,3)]
[(11/21,-4/21,10/21),(2/21,5/21,-2/21),(-1/7,1/7,1/7)]
Solve the following system of equations.
2x+16y=-18
-3x-8y=11
(-1,-1)
Solve the following equation:
X-[(3,4),(4,2),(1,9)]=[(5,7),(9,12),(3,2)]
[(8,11),(13,14),(4,11)]
Find the product. If not possible, label it undefined.
[(2,-1),(5,3)][(0,4),(-3,1)]
[(3,7),(-9,23)]
Find the inverse of the following matrix.
[(0,2,3),(4,1,-2),(-2,3,1)]
[(1/6,1/6,-1/6),(0,1/7,2/7),(1/3,-2/21,-4/21)]
Solve the following system of equations.
-8x+y=-1
4x+5y=-5
(0, -1)
Solve the following equation:
[(-2,-3),(2,2)]=X-[(1,-1),(-2,2)]
[(-1,-4),(0,4)]
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
Solve the following system of equations.
x-18y=-21
-6x+9y=27
(-3, 1)
Find the value of each variable:
5[(8,6),(4,0)]-2[(3,2),(53,3)]
[(34,26),(-86,-6)]
Find the product if possible. If it not possible, label it undefined. Find QS
Q = [(5), (9)] S = [(0,-1),(4,6)]
Undefined
Find the inverse of the following matrix, if possible.
[(4,3),(3,2)]
[(-2,3),(3,-4)]
Stephanie and Jose are selling cookie dough for a school fundraiser. Stephanie sold 7 packages of white chocolate chip cookie dough and 14 packages of double chocolate cookie dough for a total of $336. Jose sold 14 packages of white chocolate chip cookie dough and 7 packages of double chocolate cookie dough for a total of $273. Find the cost of one package of white chocolate chip cookie dough and one package of double chocolate cookie dough.
package of white chocolate chip cookie dough: $10
package of double chocolate cookie dough: $19
SOLVE WITH MATRICES:
Shanice's school is selling tickets to the annual talent show. On the first day of ticket sales the school sold 12 senior citizen tickets and 10 child tickets for a total of $124. The school took in $160 on the second day by selling 16 senior citizen tickets and 12 child tickets. What is the price each of one senior citizen ticket and one child ticket?
senior citizen ticket: $7
child ticket: $4