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IrinaK [193]
2 years ago
7

If x = 5 & y = 3 what is 3x + 5y?

Mathematics
1 answer:
notka56 [123]2 years ago
4 0

Answer:

30

Step-by-step explanation:

If you plug in 5 for x and 3 for y then the equation would be 3(5)+5(3) or 15+15.

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Segment AB has endpoints at −2 and 12. What is the coordinate of its midpoint?
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Hi there!

\large\boxed{5}

Find the midpoint using the midpoint formula:

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m = 5.

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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]

Answer:

146.41

Step-by-step explanation:

third order determinant = determinant of 3×3 matrix A

given ∣A∣=11

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=det(adjacent of A)

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

 

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we get

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=(11)^2×2  = 11^4

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