The first thing you must remember is that the product of matrices is done by multiplying rows by columns.
For this case, the AB matrix is
AB = [1 0 0; 0 1 0; (x + 1) 0 y]
Equalizing the identity matrix we have
AB = I
[1 0 0; 0 1 0; (x + 1) 0 y] = [1 0 0; 0 1 0; 0 0 1]
Therefore we have
x + 1 = 0
y = 1
The values of x and y are
x = -1
y = 1
the answer is
X=-1
Y=1
Answer:
I would pick a, the estimated total to the nearest dollar is 38
Step-by-step explanation:
13.95 rounded is 14
23.50 rounded is 24
24+14=38
Answer:
Down here VVVVVVVV
Step-by-step explanation:
The formula for slope is rise/run there a whole lot of variations of it tho see
(Srry abt my hand writing XD)
rise is basically how far away are the 2 y values from each other
(It will always be positive btw mate.
In this case the rise would be 5
because you need to move up 5 spaces to reach 3 from -2
Now the run which is how far away the 2 x values are from each other.
In this case it would be 4
because you need to move 4 spaces from 3 to reach 7
so it would the slope would be 5/4 :)
This may not be right but you can get the just of how to do it hopefully
Im learning this right now too XD
Answer:
45°
Step-by-step explanation:
All angles in a triangle add up to 180°
180 - (90 + 45)
= 180 - 135
= 45
Therefore the missing angle is 45°