EPTMath Help - Page 2
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infinity21
Canada6683 Posts
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CapO
United States1615 Posts
On March 14 2008 11:11 infinity21 wrote: holy shit #7 is so hard... I have no idea how to solve that. i used to know how to do this shit so easily, but now i sorta forgot most of it. someone help me understand #7 plz? =/ | ||
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decafchicken
United States20157 Posts
On March 14 2008 10:38 {CC}StealthBlue wrote: It actually for my nephew whose mom gave it to him, he's in 5th grade. Which I think is cruel but w/e. edit: Which* a) you cant do it b) his mom cant do it c) he cant do it only c is mildly acceptable. | ||
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QuanticHawk
United States32130 Posts
factoring, grouping, etc... i wanna shoot myself. | ||
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EmeraldSparks
United States1451 Posts
-6x + 6 = 30 + 6 x = 36 | ||
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ShaLLoW[baY]
Canada12499 Posts
On March 14 2008 12:50 EmeraldSparks wrote: -6x=30 -6x + 6 = 30 + 6 x = 36 Did you use implicit differentiation or Newton's linear approximation method for this one? | ||
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EmeraldSparks
United States1451 Posts
On March 14 2008 12:52 ShaLLoW[baY] wrote: Did you use implicit differentiation or Newton's linear approximation method for this one? Both. | ||
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Blind
United States2529 Posts
On March 14 2008 08:30 Caller wrote: How'd you get from the first line to the second line? Final answer should be just 5/6 + 1/x.6. 1/2+1/3+1/x (3/6) + (2/6) = 1/x 5/6 = 1/x X x X x /6/5 /6/5 x = 6/5 | ||
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decafchicken
United States20157 Posts
On March 14 2008 15:00 Blind wrote: How'd you get from the first line to the second line? Final answer should be just 5/6 + 1/x. He was showing his work? LCD and then added them. by the way, it should be 5/6 = -1/x; you just moved it to the other side w/out subtracting. | ||
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Blind
United States2529 Posts
1/2 + 1/3 + 1/x = 0 Sorry if I'm missing something obvious. Though realistically, the OP probably meant the latter, or he meant 1/2 + 1/3 = 1/x | ||
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