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Damm [24]
3 years ago
11

Square root -64 minus square root -25... complex numners.. i am so confused

Mathematics
2 answers:
allochka39001 [22]3 years ago
7 0
The answer would be 3
Galina-37 [17]3 years ago
3 0

\sqrt{ - 64}  -  \sqrt{ - 25}  \\ 8i - 5i \\ 3i \\
square root of negative is an imaginary solution or number. meaning it exist somewhere. square root of 64 is 8 and the square root of 25 is 5. "i" represent imaginary number
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Aaron’s age is three years less than Devon‘s age the sum of their ages is 31 find each of their ages
Goryan [66]
  • Answer:

<em>Aaron 14 years</em>

<em>Devon 17 years</em>

  • Step-by-step explanation:

<em>D = A + 3</em>

<em>D + A = 31</em>

<em>replace D</em>

<em>A + 3 + A = 31</em>

<em>2A = 31 - 3</em>

<em>2A = 28</em>

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<em>D = 17 years</em>

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8_murik_8 [283]

Answer:

  (x, y) = (2 2/9, -1 4/9)

Step-by-step explanation:

Equate the values of y and solve for x.

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  y = -2(2 2/9) +3 = -4 4/9 +3 . . . . substitute for x in the second equation

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The solution is x = 2 2/9, y = -1 4/9.

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