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Ulleksa [173]
3 years ago
5

What is i^2 simplified?

Mathematics
2 answers:
Crank3 years ago
6 0
Negative 1 would be your answer

iren [92.7K]3 years ago
4 0

i²=-1


It"s a basic result of complex number :)

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2 years ago
According to a Human Resources report, a worker in the industrial countries spends on average 419 minutes a day on the job. Supp
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Answer:

A) Between 388 and 450

B) Between 357 and 481

C) Between 326 and 512

D) 99.995%

E) 72.907%

Step-by-step explanation:

We are given;

Mean; x¯ = 419 minutes

Standard deviation; σ = 31 minutes

A) From the empirical rule, 68% falls within 1 standard deviation.

Thus, it will be between;

419 - 1(31) and 419 + 1(31)

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Between 388 and 450

B) From the empirical rule, 95% falls within 2 standard deviation.

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419 - 2(31) and 419 + 2(31)

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Between 326 and 512

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z = (479 - 359)/31

z = 3.871

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6 0
3 years ago
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