Simplify the number using the imaginary unit i: (square root) -28

a. 2(square root) -7
b. -2(square root) -7
c. i(square root) 28
d. 2i(square root) 28

C

Step-by-step explanation:

Imaginary Number   is defined as the square root of

We can write:  

Now, we want to simplify  

We can use the formula to simplify it further:

Using the fact that  ,  we can write:

This is answer choice C.

good job you smart son of a gun you are smarter that einstein. 7

the  office resources  are the human, physical and financial  resources  which are utilized for performing all the activities in order to achieve the organizational objectives.

happy to

pls mark as brainliest