Rains HS Algebra Worksheet

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1Urnira

Mathematics

Rains HS

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Explanation & Answer:
26 problems
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Explanation & Answer

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𝑥

𝑥

𝑥

1. Correct but why so long? 4 + 2 = 𝑥, 4 = 𝑥 − 2 = 2 , 𝑥 = 8.
2. Correct if y is allowed to be complex.
3. Correct (𝑚 ≠ 2, −3,7).
4. Correct.

5. Incorrect. You got the correct answer but I do not understand how
72𝑛 is not 72 𝑛 = 49𝑛 but (72 )𝑛 = 49𝑛 .
1

The correct way is 72𝑛 = 72 = 7−2 , i.e. 2𝑛 = −2, 𝑛 = −𝟏.

6. Incorrect if I understand the term “point discontinuity” correctly.
It means the same as “removable discontinuity”, i.e. the situation when there are the same
finite limits from the left and from the right (but no function val...


Anonymous
Just what I needed…Fantastic!

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