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Keith_Richards [23]
2 years ago
13

Y2-4y+4/(2-6y) x (2y+4)/(3y2-12)​

Mathematics
1 answer:
Ad libitum [116K]2 years ago
7 0

Answer:

what is the question? please ask a question.

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5 pounds of apples costs $7.45 . what is the dependent and the independent variables
Vlada [557]

$7.45

+

5pounds

13.74065 US$

5 0
3 years ago
Can U solve this?!<br><br> No Improper answers!
amm1812

Answer:

1

Step-by-step explanation:

multiply and divide(left to right)

=9-9+1

Add and subtract(left to right)

=1

6 0
3 years ago
Read 2 more answers
Help please!!!!!!!!!
In-s [12.5K]

ANSWER

24


EXPLANATION

For a matrix A of order n×n, the cofactor C_{ij} of element a_{ij} is defined to be


   C_{ij} = (-1)^{i+j} M_{ij}


M_{ij} is the minor of element a_{ij} equal to the determinant of the matrix we get by taking matrix A and deleting row i and column j.


Here, we have


   C_{11} = (-1)^{1+1} M_{11} = M_{11}


M₁₁ is the determinant of the matrix that is matrix A with row 1 and column 1 removed. The bold entries are the row and the column we delete.


   \begin{aligned} A=\begin{bmatrix} \bf 1 & \bf -6 & \bf -4\\ \bf 7 & 0 & -3 \\ \bf -9 & 8 & -8 \end{bmatrix} \implies M_{11} &= \text{det}\left(\begin{bmatrix} 0&-3 \\ 8&-8 \end{bmatrix} \right)  \end{aligned}


Since the determinant of a 2×2 matrix is


   \det\left(  \begin{bmatrix} a & b \\ c& d  \end{bmatrix} \right) = ad-bc


it follows that


   \begin{aligned} A=\begin{bmatrix} \bf 1 & \bf -6 & \bf -4\\ \bf 7 & 0 & -3 \\ \bf -9 & 8 & -8 \end{bmatrix} \implies M_{11} &= \text{det}\left(\begin{bmatrix} 0&-3 \\ 8&-8 \end{bmatrix} \right) \\ &= (0)(-8) - (-3)(8) \\ &= -(-24) \\ &= 24 \end{aligned}


so C_{11} = M_{11} = 24

4 0
3 years ago
Find x in this proportion.<br> 5/2x=25/4<br> x=__?<br> 2/5<br> 5/2<br> 4/5<br> 8/5
8_murik_8 [283]
Correct answer is A.

\frac{5}{2x} = \frac{25}{4} &#10;\\&#10;\\2x\times 25=5\times 4&#10;\\50x=20&#10;\\&#10;\\x= \frac{20}{50}= \frac{2}{5}
8 0
3 years ago
Read 2 more answers
How many variable terms are in the expression 3x3y + 5x2 − 4y + z + 9? (Input a numeric value only.)
Anarel [89]

Answer:

4

Step-by-step explanation:

A variable term is a mathematical term in which a variable is by itself or is connected to a coefficient(s).

3x3y, 5x2, −4y, z.

7 0
2 years ago
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