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2 years ago

Please answer i need help

Mathematics

2 answers:

natima [27]2 years ago

4 0

<h3>Answer: A) 5 - 3i</h3>

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Work Shown:

$5 - \sqrt{-9}\\\\5 - \sqrt{-1*9}\\\\5 - \sqrt{-1}*\sqrt{9}\\\\5 - i*3\\\\5 - 3i\\\\$

In step 3, I used the rule $\sqrt{x*y} = \sqrt{x}*\sqrt{y}$

Afterward, we use the definition that $i = \sqrt{-1}$

White raven [17]2 years ago

3 0

Answer:

5-3í

Step-by-step explanation:

Because the root of nine is three, equaling 5-3í

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<h3>Answer :</h3>

See the attachment for better understanding.

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$:\implies\sf\:sin60^{\circ}=\dfrac{AB}{AC}$

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$:\implies\:\boxed{\bf{\red{H\approx 260\:feet}}}$

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