Answer:
16
Step-by-step explanation:
4 coins 2 out comes each
2 X 2 X 2 X 2 = 16
2^4 = 16
Hope i helped you
About the minus sign with 16, square root of -1 is an imaginary number i(iota). Also we know that square root of -16 will be multiplication of square root of -1 and square root of 16. So the final answer becomes, + or - 4i. Hope this helps
Answer:
multiply one or both of the equations until a variable can cancel out
Sorry if my handwriting sloppy.
I showed all of it step by step.