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Gnom [1K]
2 years ago
6

If the number of types of massages is represented by 4x + 3 and the number of types of manicures is represented by -6x + 5 and t

he number of types of pedicures is represented by 8x - 7, what is the expression for the total number of services they have to choose from?
Mathematics
1 answer:
svetlana [45]2 years ago
6 0

Answer:

Step-by-step explanation:

If the number of types of massages is represented by 4x + 3 and the number of types of manicures is represented by -6x + 5 and the number of types of pedicures is represented by 8x - 7, what is the expression for the total number of services they have to choose from?

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3 years ago
If the value of third order determinant is 11. Then what is the value of the determinant formed by its cofactors.
nordsb [41]

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third order determinant = determinant of 3×3 matrix A

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det (cofactor matrix of A) =set (transpare of cofactor amtrix of A) (transpare does not change the det)

=det(adjacent of A)

{det (cofactor matrix of A)}  ^2  = {det (adjacent of A)} ^2

 

(Using for an n×n det (cofactor matrix of A)=det (A)^n−1 )

we get

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