2 years ago

The matrix below represents a system of equations.

1 answer:

7 0

Answer:A

Step-by-step explanation:

just took it

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Given the figure of a regular pyramid

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butalik [34]

Answer:

Step-by-step explanation:

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where, n = 6: Sn = 6/2( -20 + 5(3)) = 3(15 - 20)

∴ Sn = 15

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