In order for the inverse to exist, the matrix cannot be singular, so we need to first examine the conditions for existence of the inverse.
Compute the determinant. The easiest way might be a cofactor expansion along either the first row or third column; I'll do the first.
The matrix is then singular whenever
.
With this in mind, compute the inverse.
Answer:
Vertex: (-2, 2)
Step-by-step explanation:
The x-coordinate of the vertex would be as follows;
x = -b/2a = 8/2(-2) = -8/4 = -2
respectively the y-coordinate of the vertex would be y(-2) = -2(-2)^2 - 8(-2) - 6 = -2(4) + 16 - 6 = - 8 + 10 = 2
Your vertex would be a maximum of (-2, 2)
* I say maximum as the coefficient of x^2 is -2, and it is less than zero so the parabola opens downward
Answer:
1) , 6th Degree, leading coefficient is 5, 2) Trinomial.
Step-by-step explanation:
1) The polynomial in standard form is:
The degree is: 6.
The leading coefficient is: 5
2) The polynomial is a trinomial.
Answer:
78
Step-by-step explanation:
im not sure but i think is 78
60+18=78
sorry
Answer:3/4
Step-by-step explanation:In order to simplify 6/8 you divide the top and the bottom by 2 because it is the only number that can evenly be divided into both numbers.
6/2=3
8/2=4
Therefore your correct number is 3/4/