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3 years ago

Answer asap please and thank you

Mathematics

2 answers:

nadya68 [22]3 years ago

4 0

Answer:

you need to multiply the numbers

Step-by-step explanation:

1/5 ×2/5= 2/25

exis [7]3 years ago

4 0

Answer:

use X

Step-by-step explanation:

I'm kind of skeptical because none of them seem right to me, but X would be the one that makes more sense.

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Help please!!!!!!!!!

In-s [12.5K]

ANSWER

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

so $C_{11} = M_{11} = 24$

4 0

3 years ago

Create and solve a 2 step with subtraction and multiplication Also, x = 9

juin [17]

Answer:

x - 4(x - 2) = -37

x - 4x + 8 = -37

-5x = -37 - 8

-5x = -45

x = 9

4 0

3 years ago

How much time is it from 3:45pm to 5:15pm

Leokris [45]

1 hour and 30 minutes because when you subtract those you will get that answer

4 0

3 years ago

Read 2 more answers

7th grade math help. Check answers too please

seraphim [82]

Answer: It looks correct to me !

Step-by-step explanation:

6 0

3 years ago

A process is turning out end items that have defects of type a, or type b, or both. if the probability of type a defect is 0.1 a

Andreas93 [3]

the probability will end up being
0.28

3 0

4 years ago