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Finding unknown n th roots ?  TOPIC_SOLVED

HI I'm having trouble finding a solution to a fractional exponent that has an unknown denominator such as 0.20 = 28.6 x (1/2)^3/x I can easily determine the solution when the numerator of the fractional exponent is the unknown, but I'm stumped as how to determine the unknown value for a fractional e...
by wp_913
on Mon May 16, 2011 12:13 am
 
Forum: Advanced Algebra ("pre-calculus")
Topic: Finding unknown n th roots ?
Replies: 2
Views: 1890

Re: Finding unknown n th roots ?  TOPIC_SOLVED

Hi All, Ok I found the answer to my question by having it right in front of me and not realizing it. I just take the log of both sides of the equation, isolate the variable by division, which leaves me with 7.1584 = x/0.4191.Then I just solve for x. It took me a while to realize that it does not mat...
by wp_913
on Mon May 16, 2011 11:38 pm
 
Forum: Advanced Algebra ("pre-calculus")
Topic: Finding unknown n th roots ?
Replies: 2
Views: 1890

Graphing Parabola, negative x values  TOPIC_SOLVED

Hi I'm confused, a negative number with an exponent (exponentiation), will first have the exponent evaluated, and then have the opposite applied, ie. -2^2 = -4 However, if the negative number is enclosed with parentheses, (-2)^2, that indicates (-2) x (-2) = 4 So my question, when finding points for...
by wp_913
on Sun May 13, 2012 2:23 pm
 
Forum: Intermediate Algebra
Topic: Graphing Parabola, negative x values
Replies: 3
Views: 2370

Re: Graphing Parabola, negative x values  TOPIC_SOLVED

Hi Not sure what the plug - chug means This is what the book shows: A negative number with an exponent (exponentiation), will first have the exponent evaluated, and then have the opposite applied, ie. -2^2 = -4 However, if the negative number is enclosed with parentheses, (-2)^2, that indicates (-2)...
by wp_913
on Sun May 13, 2012 4:37 pm
 
Forum: Intermediate Algebra
Topic: Graphing Parabola, negative x values
Replies: 3
Views: 2370

Troubling exponents - what do you think  TOPIC_SOLVED

Hi

Here is a exponent problem I'm struggling with, what do you think

-(-c^4)^(-3) = -(-c^-12) = -(-1/c^12) = 1/c^12

My calculator shows this as -1/c^12

Did I miss something
by wp_913
on Tue Jun 18, 2013 1:09 am
 
Forum: Intermediate Algebra
Topic: Troubling exponents - what do you think
Replies: 1
Views: 1454

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