12. Haley and Lindsy disagree about the answer to another problem that Mrs. Johnson assigned. Haley says that (c^2+c)/(c^2) can’t be simplified. Lindsy says that it simplifies to c.
What do you think?
A Haley is right because nothing cancels.
B Lindsy is right because c^2 cancels.
C They’re both right. Either answer is acceptable.
D They’re both wrong. The correct answer is (c+1)/(c)
E They’re both wrong. The correct answer is (2c)/(c^2)
2007-11-26
07:32:46
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10 answers
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asked by
Anonymous
in
Science & Mathematics
➔ Mathematics
also could you explain why?
2007-11-26
07:33:19 ·
update #1
D.
By Lindsay's logic, if you substitute number for the values..then say random c is 3 and c ^2 is 9 then you have (9 plus 3)/3 is c (3) and 12/3 is 4.
But as in D, (c+1)/c (factoring out a "c" on both and bottom and canceling it out leads to (9+3)/9 is (3+1)/3 or 4/3 or 11/3
2007-11-26 07:47:30
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answer #1
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answered by Anonymous
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Its D.
It becomes c(c+1)/c^2 when c is taken out from numerator. Then that c cancels out with one c in the denominator and the answer is obtained.
2007-11-26 07:41:05
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answer #2
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answered by Faheem 4
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Man, it's been a while. I almost forgot how much I hate math. I think it's A. the parenthesis means that you have to figure out what's inside each one before you can divide and so you can't simplify without knowing "C".
2007-11-26 07:45:48
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answer #3
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answered by RainHater 2
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D. the correct answer is (c+1)/c
when you cancel out the numerator you have to take in part the whole numerator not just a part of it.
2007-11-26 07:40:20
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answer #4
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answered by muwade26 2
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D
(C^2+C) simplifies to (C)(C+1).
(C^2) can simplify to (C)(C).
Therefore, you can cross out a c from both the numerator and the denominator and (C+1)/(C) is your answer.
2007-11-26 07:37:18
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answer #5
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answered by The Oracle 2
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B. Lindsy is right the c squared's cancle
2007-11-26 07:38:28
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answer #6
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answered by Anonymous
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D is correct. multiply numerator and denominator by (1/c)/(1/c).
2007-11-26 07:36:50
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answer #7
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answered by Neil 7
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the answer is b lindsay is right because c^2 cancels...
if u put it in this form: cc+c/cc the cc cancels coz its cc dvded by itself whch is one..so the remaining is 1c or c..
2007-11-26 07:37:23
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answer #8
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answered by Anonymous
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ther eare some websites about it i know and might search it up?
2007-11-26 07:36:57
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answer #9
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answered by Annie M 1
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a
2007-11-26 07:36:10
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answer #10
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answered by Vivian 3
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