3 years ago

What is the difference between |-3| and -3?.

1 answer:

8 0

|-3| This means the absolute value of -3 which is +3. Anytime you see ANY number in these vertical bars, that means you need to change the number within to a positive value. If this |3| was positive, it would still be +3.

Hope this helps!

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Need an explanation

aleksandrvk [35]

Answer: Choice B

$(6\sqrt{5}+5)i$

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Work Shown:

$\sqrt{-5}+\sqrt{-25}+\sqrt{-125}\\\\\sqrt{-1*5}+\sqrt{-1*25}+\sqrt{-1*25*5}\\\\\sqrt{-1}*\sqrt{5}+\sqrt{-1}*\sqrt{25}+\sqrt{-1}*\sqrt{25}*\sqrt{5}\\\\i*\sqrt{5}+i*5+i*5*\sqrt{5}\\\\i*\sqrt{5}+5i+5i*\sqrt{5}\\\\(i\sqrt{5}+5i*\sqrt{5})+5i\\\\(\sqrt{5}+5\sqrt{5})i+5i\\\\(6\sqrt{5})i+5i\\\\(6\sqrt{5}+5)i\\\\$

This points us to answer choice B

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