What expression is equivalent to -3 - (7.5 + 4)?
1 answer:
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DC :AB=3:2 can be written as
DC/AB=3/2
Then you can get the answers easily
Answer and Step-by-step explanation:
The domain is all real numbers <u>except</u> 9 (positive)
This is because we can't have 0 in the denominator, and when x equals 9, then the denominator is 0. Anything divided by 0 is undefined, which is why 9 (in this equation) is <u>not</u> included.
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