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3 years ago

10

The person is 6 feet tall and casts a shadow of 4.7 feet. The building casts a shadow of 20.5. How tall is the building? Round t

o the nearest hundredth.

1 answer:

Degger [83]3 years ago

6 0

Answer:20.5

Step-by-step explanation:

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ASAP! Simplify -5 - square root -44

Tju [1.3M]

Answer:

$\boldmath-5-2i\sqrt{\boldmath11}$

Step-by-step explanation:

The not simplified form is $-5-\sqrt{-44}$

you know that $\sqrt{a\times b} = \sqrt{a} \times\sqrt{b}$ is true a and b are both positive or one of it is negative (not both of them).

You can write -44 as -1 × 4 × 11 inside square root.

So, $\sqrt{-44} = \sqrt{-1\times4\times11}=\sqrt{-1}\times\sqrt{4}\times\sqrt{11}=i\times2\times\sqrt{11}$ ( $\sqrt{4}=2$ )

$\therefore -5-\sqrt{-44} = -5-2i\sqrt{11}$

(NOTE : You must know that $\boldmath\sqrt{\boldmath-1}$ is written as $\boldsymbol i$ )

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Step-by-step explanation:

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2 years ago

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erik [133]

6 is ur answer, good luck!

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lesya692 [45]

It would be 7 because if you multiple 6 you get 1

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Rzqust [24]

Answer:

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Step-by-step explanation:

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