What is the square root of -1?

Mathematics

1 answer:

Dimas [21]2 years ago

4 0

Answer:

there isn't an answer, you can't get the square root of negative numbers. the sqaure root of a negative number does not exist in the set of Real Numbers

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the domain of a function f(x) is x > 1, and the range is y < -2. What are the domain and range of its inverse function, f^

Marianna [84]

9514 1404 393

Answer:

domain: x < -2
range: y > 1

Step-by-step explanation:

Domain and range of the inverse function are swapped: the domain of the function is the range of its inverse, and vice versa.

The graph shows an example of a function and its inverse with the given domain and range. The function is red; its inverse is blue.

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3 years ago

University dean is interested in determining the proportion of students who receive some sort offinancial aid. rather than exami

vladimir2022 [97]

The confidence interval is
$0.59\pm0.081$

We first find p, our sample proportion. 118/200 = 0.59.

Next we find the z-score associated with this level of confidence:
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Subtract from 1: 1-0.98 = 0.02
Divide by 2: 0.02/2 = 0.01
Subtract from 1: 1-0.01 = 0.99

Using a z-table (http://www.z-table.com) we see that this value is associated with a z-score of 2.33.

The margin of error (ME) is given by
$ME=z\sqrt{\frac{p(1-p)}{n}}
\\
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This gives us the confidence interval
$0.59\pm0.081$

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3 years ago

Help me out please! Any unrelated answers will be reported, so don't try :)

timama [110]

Try doing A, 2/3 Hopefully it helps you, I'm not good with fractions.

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3 years ago

Read 2 more answers

Eight less than the product of 3 and a number is 7

Levart [38]

Perhaps you want to know what the number is?

3n -8 = 7
3n = 15 . . . . . add 8
n = 5 . . . . . . . divide by 3

The number is 5.

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