The cofactors of each entry in the first row of the matrix exist
We have to estimate the cofactors of each entry in the first row of the matrix.
<h3>What is the matrix?</h3>
A set of numbers exists arranged in rows and columns to create a rectangular array. The numbers exist named the elements, or entries, of the matrix.
Thus the cofactors of each entry in the first row of the matrix exist
To learn more about the matrix refer to:
brainly.com/question/1821869
#SPJ4
Step-by-step explanation:
if <1 is congruent with < 3 in. you know congruent means if the two triangles have the same shape and size so <1 and < 3 are the same size means < 3 is 110°
if < 2 is 70° and < 3 is 110° that are supplementary the total is 180°
ANSWER
a. A variable is an unknown number or value represented by a letter
EXPLANATION
In mathematics, we use letters to represent an unknown quantity or number.
For instance, we can use the letter , t, to represent time taken to cover a given distance.
We can use the letter , s, to represent displacement or distance covered by an object.
The letters that we use to represent the unknown values or numbers are called variables.
The correct answer is A.
Answer:
( 3x + 1 ) ( x - 1)
Step-by-step explanation:
The given fraction is three 'x' to the power of two that is minus from 'x' minus from four. Simplifying that into three 'x' to the power of two. After this three minus 'x' plus four 'x' minus four. By taking common values which is three 'x' multipled by 'x' and minus one adding the entire by the value four which is further multipled by 'x' and minus one. Finally we obtain our answer that is three 'x' plus one multipled the entire by 'x' and minus one.
3x^2-x-4
3x^2
-3x+4x -4
Take common
3x ( x - 1 ) + 4 ( x - 1 )
( 3x + 1 ) ( x - 1)