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Stella [2.4K]
3 years ago
9

Which choice is equivalent to the expression below?

Mathematics
2 answers:
timama [110]3 years ago
5 0

Answer:

  • B. 3i√3

Step-by-step explanation:

  • \sqrt{-27} =
  • \sqrt{-1*3*9} =
  • 3\sqrt{-1} \sqrt{3} =
  • 3i\sqrt{3}

Correct choice is B

Mandarinka [93]3 years ago
5 0

Answer:

B. 3i√3

Step-by-step explanation:

\sqrt{-27} = \sqrt{-1*3*3*3}=3\sqrt{-1*3}

we have

-1=i²

so

=3\sqrt{i²*3}

=3i\sqrt{3}

<u>Option B.3i</u>\sqrt{3}

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Answer:

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Step-by-step explanation:

Because they are just switching the numbers 7 and 6 and 7 x 6 = 6 x 7, you have to look at the number of zeros. As you can see, 7,000 has 1 more zero than 600, so Cristal is correct. Just like I said 7 x 6 and 6 x 7 is interchangeable, so is 7 x 600 and 6 x 700, they both equal 4,200. However, 6 x 7,000 is 42,000.

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Answer:

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