Answer:
The inverse of a square matrix A, denoted by A-1, is the matrix so that the product of A and A-1 is the Identity matrix.
Step-by-step explanation:
Ahh thank you so much !! <3
Answer:
-2,-3
Step-by-step explanation:
multiply the x coordinate and the y coordinate by -1 and interchange the x and y-coordinates
3 days = 72 hours + 12 hours = 84 hours
12600 watt hours / 84 hours
= 150 watt hours / 1 hour
It’s asking how many watt hours consumed per day. We know 150 watt hours per hour so multiply that by 24 because 24 hours in a day
= 3600 watt hours per day
Answer:
x=-17/19, y=131/19. (-17/19, 131/19).
Step-by-step explanation:
-19x=26-9
-19x=17
x=-17/19
9(-17/19)=54-9y
-153/19=54-9y
9y=54-(-153/19)
9y=54+153/19
9y=1026/19+153/19
9y=1179/19
y=(1179/19)/9
y=(1179/19)(1/9)
y=1179/171
y=131/19
