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2 years ago

14

Or lingneeds 2 yards of fabric for a raft project .she has 3 feet already. how many inches of fabric that she need still need?

1 answer:

otez555 [7]2 years ago

7 0

2 yards = 72 inches
3 ft = 36 inches
72 - 36 = 36
She still needs 36 inches of fabric.

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Answer:

A.

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Answer:

$2a - 3b + 4c = 1$

Step-by-step explanation:

Given

$a^2 + b^2 + c^2 = 2(a - b - c) - 3$

Required

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Open bracket

$a^2 + b^2 + c^2 = 2a - 2b - 2c - 3$

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$a^2 + b^2 + c^2 - 2a + 2b + 2c + 3 = 0$

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Collect like terms

$a^2 - 2a + 1 + b^2 + 2b + 1 + c^2 + 2c + 1 = 0$

Group each terms

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Factorize (starting with the first bracket)

$(a^2 - a -a + 1) + (b^2 + 2b + 1) + (c^2 + 2c + 1) = 0$

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By comparison

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$c + 1 - 1 = 0 - 1$

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