3 years ago

Factor completely x3 - y3

Mathematics

1 answer:

stealth61 [152]3 years ago

8 0

Answer:

$(x-y)(x^2+xy+y^2)$

Step-by-step explanation:

$x^3 - y^3=(x-y)(x^2+xy+y^2)$

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Height of the light house $=7.5\ feet$

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The figure of the situation is shown below.

For Δ ABC

$\tan2\°=\frac {AB}{BC}$

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$0.035=\frac {AB}{100}$

Multiplying both sides by 100.

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$3.5=AB$

∴ $AB=3.5$

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