Math problems (need assistance)
Oct 13, 2014 at 1:38 PM Post #2 of 9
I'm a bit rusty so unless someone else confirms this, use this only as a last resort.
 
I.
X^5
  X
 
(X)(X)(X)(X)(X)
           X
 
X^4
 
 
II.
a^2bc
 abc
 
        a^2bc      
(a^1)(b^1)(c^1)
 
where:  division of like variables means subtracting the exponent of the divisor from the exponent of the dividend
 
a^2b-1
   bc 
 
(exponent of remaining a in dividend is 2b-1)
 
Oct 14, 2014 at 8:40 AM Post #3 of 9
ProtegeManiac, I think you dropped a "c" from the top of the fraction. I think the solution should be:

a^(2bc-1)
      bc


You solution to #1 is correct. Although, here are a couple more ways of thinking of it in hopes that it helps:

X^5 = X^5 = (X^5)*(X^-1) = X^4
  X      X^1
 
Oct 14, 2014 at 1:13 PM Post #4 of 9
ProtegeManiac, I think you dropped a "c" from the top of the fraction. I think the solution should be:

a^(2bc-1)
      bc


You solution to #1 is correct. Although, here are a couple more ways of thinking of it in hopes that it helps:

X^5 = X^5 = (X^5)*(X^-1) = X^4
  X      X^1

 
Whoops, typo 
tongue.gif

 
Nov 11, 2014 at 12:42 PM Post #8 of 9
Here is another fun little problem. 
 
Belt and drive system: Large pulley (D) is 12.25", distance (C) to center of each pulley is 14.50", total linear length of belt (L) is 61.13". Calcuate the required diameter for the small pulley (d), formula is;
 
L=2C + 1.57(D+d) + 1/4 C(D-d)^2
 
 
So far I have this;
 
61.13"= 29+1.57 (12.25+d) +3.625 (12.25-d)^2
 

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