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MArishka [77]
3 years ago
10

What is the solution of the equation x^2+4=0

Mathematics
2 answers:
natulia [17]3 years ago
5 0

Answer:

x=±2i

Step-by-step explanation:

if you haven't learned about imaginary numbers yet it is unsolvable

Sholpan [36]3 years ago
3 0
It’s a maths error because root of any number which is negative isn’t a maths err
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7 0
3 years ago
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Vlad [161]

Answer:

v = - 1

Step-by-step explanation:

Collect like terms on the right side of the equation

3 = - 3v ( divide both sides by - 3 )

v = \frac{3}{-3} = - 1


6 0
3 years ago
Which equation shows that the Pythagorean identity is true for theta = 2pi? Select
Andreyy89

Answer:

I just took the quiz

Step-by-step explanation:

0^2 + 1^2 = 1

Also known as C.

7 0
3 years ago
Find the indicated limit, if it exists.
jok3333 [9.3K]
For the limit to exist, the limits from either side must also exist and be identical. We have

\displaystyle\lim_{x\to2^-}f(x)=\lim_{x\to2}(x+3)=2+3=5

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Since the limits do not match, the overall limit does not exist.
6 0
3 years ago
A store pays $81 for a hockey stick and marks the price up by 5%. What is the amount of the mark-up?
OlgaM077 [116]
.05 is equal to 5%
So for every dollar the mark up is .05cents
So if you times $81 by .05 this will give you the mark up because each of the 81$ needs .05 added to it.

So $4.05 Is the mark up

And

The cost would be markup and original added together
4 0
3 years ago
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