Which expression represents the number

8 + i

Step-by-step explanation:

What you need to simplify this is the following "definitions" of i to different powers.

Now we can sub these in for the various powers of i in our expression:

Simplifying a bit:

Since we know that the square root of i-squared is i, and that the square root of 49 is 7, we can get rid of the radial sign as follows:

6 - 6i + 2 + 7i

And the final answer, in a + bi form, is

8 + i

the 3rd option is right

step-by-step explanation:

c 1 hour

step-by-step explanation:

m = 2e

m = 2 so 2 = 2e

1 = e