3 years ago

What is the definition of i? What do we use it for?

1 answer:

5 0

I is an imaginary number used to find the square root of a negative number.
sqrt-1 is 1i
sqrt-16 is 4i and so on

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Bogdan [553]

Answer:

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Step-by-step explanation:

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dusya [7]

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Juliette [100K]

Given:

The function f represents the diver's distance from sea level over time, in seconds.

$f(x)=\begin{cases}3x+1 & \text{ if } -9$

To find:

The correct statement for the domain.

Solution:

Domain is the set of input values for which the function is defined.

Here, x values are the input values and they represent time intervals on which the function is defined

Here, the possible intervals for x are $-9$ .

$Domain=(-9,-2]\cup (-2,1]\cup (1,7)$

$Domain=(-9,7)$

Therefore, the domain is the time interval (−9, 7). Hence the correct option is A.

4 0

3 years ago