Answer:
C
Step-by-step explanation:
The inverse of a matrix is the transpose of the cofactor matrix, divided by the determinant. The determinant is (4)(3) -(1)(-5) = 17, eliminating choice B.
In a 2×2 matrix, the transpose of the cofactor matrix swaps the diagonal elements, and negates the off-diagonal elements. That is, the transpose of the cofactor matrix will look like the matrix of B. When that is divided by 17, you get the matrix of answer choice C.
Answer:
The slope is 1/2
Step-by-step explanation:
I did rise over run
2,200 ÷ 40 = 55
So your answer is..
d.) 55
Good Luck! :)
Answer:
- 11x - 2
Step-by-step explanation:
note that (f + g)(x) = f(x) + g(x)
f(x) + g(x)
= 2x + 1 - 13x - 3 ← collect like terms
= - 11x - 2
Solution for 3x+4=2x-1 equation:
Simplifying
3x + 4 = 2x + -1
Reorder the terms:
4 + 3x = 2x + -1
Reorder the terms:
4 + 3x = -1 + 2x
Solving
4 + 3x = -1 + 2x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-2x' to each side of the equation.
4 + 3x + -2x = -1 + 2x + -2x
Combine like terms: 3x + -2x = 1x
4 + 1x = -1 + 2x + -2x
Combine like terms: 2x + -2x = 0
4 + 1x = -1 + 0
4 + 1x = -1
Add '-4' to each side of the equation.
4 + -4 + 1x = -1 + -4
Combine like terms: 4 + -4 = 0
0 + 1x = -1 + -4
1x = -1 + -4
Combine like terms: -1 + -4 = -5
1x = -5
Divide each side by '1'.
Your Answer is x = -5
Hope it helps!
<em>OFFICIALLYQUEENZ</em>
<em>THANK YOU</em>
Simplifying
x = -5
