Answer:
k = 0
Step-by-step explanation:
-2k = 8k + 7k
Add similar elements:
-2k = 15k
Subtract 15k from both sides:
-2k - 15k = 15k - 15k
Simplify:
-17k = 0
Divide both sides by -17:
17k/-17 = 0/-17
k = 0
I wasn't sure if you wanted me to solve for k or combine the like terms.
Answer:
D) 1
Step-by-step explanation:
When you start raising i to certain powers, you begin to notice a pattern.

This cycle repeats forever. Since 84 is a multiple of 4, i^84 must be 1. Hope this helps!
Answer:D
Step-by-step explanation:
You can use a number line to add and subtract