Simplify the complex number i^39 as much as possible.

-i

Step-by-step explanation:

i =

= - 1

Every will be equal to -1, when n is even.

Break apart into ()()

Since 38 is even, will be equal to -1

-1*() = -i

x > 1.3

step by step:

8.5−0.9x> 9.8−1.9x

step 1: simplify both sides of the inequality.

−0.9x+8.5> −1.9x+9.8

step 2: add 1.9x to both sides.

−0.9x+8.5+1.9x> −1.9x+9.8+1.9x

1x+8.5> 9.8

step 3: subtract 8.5 from both sides.

1x+8.5−8.5> 9.8−8.5

1x> 1.3

step 4: divide both sides by 1.

1x/1 > 1.3/1

but there’s no any figure there!