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pshichka [43]
3 years ago
10

Solve the quadratic equation -x^2=4

Mathematics
2 answers:
tester [92]3 years ago
8 0
-x^2 = 4
(-x)(-x) = 4
x^2 = 4
x = 2

So, 2 is the answer.
Alex_Xolod [135]3 years ago
7 0
<span>-x^2=4
x = -2i and x = 2i
-------------------------------</span>
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This is due today, and I have no idea what I'm doing, please help if you know anything.
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mean = 25 * 0.04 = 1

stdev = \sqrt{np(1-p)}

stdev = \sqrt{(25)(0.04)(1-0.04)} = 0.9798

Hope this helps!! :)

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