Answer:
3
Step-by-step explanation:
the initial statement is
y
∝
1
/x
to convert to an equation multiply by k the constant
of variation
y
=
k
×
1
/x
=
k
/x
to find k use the given condition
y
=
5 when x
=
6
y
=
k/
x
⇒
k
=
y
x
=
5
×
6
=
30
y
=
30
/x
when
x
=
10
then
y
=
30
/10
=
3
(x^2+2x+1)+(y^2+6y+9)=10
(x+1)^2 + (y+3)^2 = 10
centre (-1,-3) radius sqrt10
Translate the given information into equations:
2L + 2W = 326
L = 2W - 5
Solve the system of equations.
2(2W - 5) + 2W = 326
4W - 10 + 2W = 326
6W - 10 = 326
6W = 336
W = 56
L = 2W - 5
L = 2(56) - 5
L = 107
Answer: Length: 107 ft; Width: 56 ft
Answer: He earned 43,344 a year and earned and earned 3612 a month
The (i,j) minor of a matrix A is the matrix Aij obtained by deleting row i and column j from A it is true.
The (i,j) minor of a matrix A is the matrix Aij obtained by deleting row i and column j from A. A determinant of an n×n matrix can be defined as a sum of multiples of determinants of (n−1)×(n−1) sub matrices.
This is done by deleting the row and column which the elements belong and then finding the determinant by considering the remaining elements. Then find the co factor of the elements. It is done by multiplying the minor of the element with -1i+j. If Mij is the minor, then co factor, + .
Each element in a square matrix has its own minor. The minor is the value of the determinant of the matrix that results from crossing out the row and column of the element .
Learn more about the minor of the matrix here:
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