Calculate dy/dx when xy^3 + y =3x

5+5 +3+3+4+4+5+5+&+&+7+7+8+8+9+9

worty [1.4K]

Answer: 82

Step-by-step explanation: 5+5 +3+3+4+4+5+5+7+7+8+8+9+9

10+6+8+10+14+16+18

16+18+30+18

34+48

82

8 0

3 years ago

Write in miles per hour. Round to the nearest tenth. 211 ft/s

IgorC [24]

Answer:

143.864

Step-by-step explanation:

6 0

3 years ago

What is 1/6÷7/8 as a fraction in lowest terms

Brrunno [24]

Answer:

the answer is 5 1/4

Step-by-step explanation:

because u flip it then multiply then u get ur answer

6 0

3 years ago

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

A nurse gave an 8 year old child a dose of 6 mL of medicine. What would be the adult equivalent of this dosage

aleksley [76]

Ok read first heheheh where

3 0

2 years ago