AB = -2
CD = -1
BC = -3/-2
AD = -2/-3
Answer:
95>=X <=100. More or equal to 95 or equal or less than 100.
Step-by-step explanation:
The Total of the first score is needed first
81+87+ 94+93=355
The total of this score
Let X be the 5TH score we are looking for
(355+ X)/5= 90
355+X= 450
X= 450-355
X= 95 the person needs to sore between 95 and 100 ( which is the highest possible score).
Using a Laplace expansion along the first column, we have

The determinant of a 2x2 matrix is trivial,

So we have

Answer:
38 is greater
Step-by-step explanation:
6.343443444 is a decimal between 6 and 7 :3