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Dafna11 [192]
3 years ago
8

What is the square root of –16? A. –8i B. –4i C. 4i D. 8i

Mathematics
2 answers:
hichkok12 [17]3 years ago
6 0

Answer:

C. 4i

Step-by-step explanation:

\sqrt{-16} = \sqrt{16} \sqrt{-1} (because \sqrt{ab} =\sqrt{a} \sqrt{b})

Since \sqrt{16}=4, and \sqrt{-1}=i, \sqrt{-16}=4i

lesya692 [45]3 years ago
5 0

Answer:

C. 4i

Step-by-step explanation:

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The sum of a number and twice another number is 17. The sum of twice the first number and the second number is 4. What are the t
zhannawk [14.2K]

Step-by-step explanation:

Given that,

a + 2b = 17

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