I'll go out on a limb and suppose you're given the matrix

and you're asked to find the determinant of

, where

and given that

.
There are two properties of the determinant that come into play here:
(1) Whenever a single row/column is scaled by a constant

, then the determinant of the matrix is scaled by that same constant;
(2) Adding/subtracting rows does not change the value of the determinant.
Taken together, we have that
First plug in the numbers 5 x 8 = 40
40-4y+6x8=48
40-4y+48
Answer:
The average weight of a newborn otter is 1.775 kg.
Step-by-step explanation:
We are given the following in the question:
Weight of newborn otter =

Let x lg be the average weight of a newborn otter.
Thus, we are given the relation:

Thus, the average weight of a newborn otter is 1.775 kg.
Answer:
Segment AD is 4 units long, while segment BC is 5 units long. If this figure was a parallelogram, these two segments would be equal to each other.
Step-by-step explanation: