Answer:
There doesn't seem to be numbers to answer that, do you have the question right? If it was a difference of 18, for example, the numbers would be 64 and 36.
Step-by-step explanation:
Find 2 numbers that added together, equal 10.
91
82
73
64
55
46
37
28
19
Then subtract them by their opposites. Find the numbers with the difference of 12.
91 - 19 = 72
82 - 28 = 54
73 - 37 = 36
64 - 46 = 18
55 - 55 = 0
46 - 64 = -18
37 - 73 = -36
28 - 82 = -54
19 - 91 = -72
There is no numbers with the difference of 12.
If it was a difference of 18, for example, the numbers would be 64 and 36.
Answer:

<em>good luck, i hope this helps :)</em>
Answer:
Since the question doesn't mention in what tide the answer should be, I will be giving a solution to both, the high and low tide. Hope this helps :)
Step-by-step explanation:
Using a cosine function, where time is measured in hours past high
tide: y=4cos30x + 10
Using a cosine function, where time is measured in hours past low
tide: y = 4cos[30(x-6)]+10