Answer:
Remember, a homogeneous system always is consistent. Then we can reason with the rank of the matrix.
If the system Ax=0 has only the trivial solution that's mean that the echelon form of A hasn't free variables, therefore each column of the matrix has a pivot.
Since each column has a pivot then we can form the reduced echelon form of the A, and leave each pivot as 1 and the others components of the column will be zero. This means that the reduced echelon form of A is the identity matrix and so on A is row equivalent to identity matrix.
Answer:
In order of the paragraph:
3, isosceles, greater, 3 in
Step-by-step explanation:
The first drop box has to be 3 because if you add up two sides of a triangle, the sum has to be greater than the third side. If two sides are equal, the triangle is isosceles. The third side cannot be 1 since 1+1 is not greater than 3. So the third side must measure 3in.
Answer:
B
Step-by-step explanation:
3x+33+6x=9x-33
9x+33=9x-33
33=-33
no solution
Here is your answer, you just count to 10... Simple as that.
H the equation has x = 4 and x = -4 as it’s only solutions is true
