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Phoenix [80]
4 years ago
6

I NEED HELP ASAP!!!!!! WILL GIVE BRAINLIEST IF ANSWER IS CORRECT

Mathematics
1 answer:
Dmitriy789 [7]4 years ago
7 0
So, the one you picked is correct because:
2^{a-3} = b-4
log_2(b-4) = a-3
log_2(b-4) +3 = a

This eliminates the second option because there is only 1 possible value for a. 

The 4th option is also correct because it's saying:
log_2(b-4) = a-3

Now, just by pure logic, you can tell that to solve for b, you have to use option 3 because Option 5 has already been used to solve for a.

So, your answers are: #1, #3, and #4.
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