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  1. Hi cajntaz, The DVD+ R and DVD- R are competing .... However, because the DVD- R format has been in use since 1997, it ...

    4 Answers · Consumer Electronics · 25/01/2008

  2. By factoring, we have: r /( r + 3) + 4/( r - 2) = 20/(( r - 2)( r + 3)) Multiply both sides by... + br + c, let: a = 1 b = 2 c = -18 Next, by quadratic formula: r = (-b ± √(b² - 4ac))/2a ==> (-2 ± √((2)² - 4*1*-18))/2 ==> (-2...

    4 Answers · Education & Reference · 02/04/2011

  3. I=E/( R + r ) multiply both sides of the equations by ( R + r ): I... subtract r from both sides of the equation: R =(E/I) - r *Note: lol wise guy..you were still right in your first...

    2 Answers · Science & Mathematics · 20/02/2008

  4. 10.5 = R *12^2 / (1.49 + R )^2 Simplify: 10.5= R *144/(1.49+ R )^2 Expand: 10.5= R *144/1.49^2+ R ^2 Simplify again: 10.5= R *144/2.2201+ R ^2 10.5= R ...

    2 Answers · Education & Reference · 30/09/2010

  5. Add 102.7 to both sides (1/(1+ r )) * (29.4/ r ) = 102.7 multiply (1/(1+ r )) * (29.4/ r ) 29.4/[(1+ r )( r )] = 102.7 .... 0 = 102.7r + 102.7r^2 - 29.4 Use the quadratic formula to find r . http://www.purplemath.com/modules/quadform.htm - this site shows the formula...

    1 Answers · Science & Mathematics · 18/10/2009

  6. [( r + 2)^3 - 8] = ( r +2 - 2)(( r +2)^2 + 2( r +2) + 4) = [ r ( r ^2 + 4r + 4 + 2r + 4 + 4)] = r ( r ^2 + 6r + 12) so: 1) lim g ( as r approaches 0) = lim r ( r ^2 + 6r + 12) / r = lim ( r ^2 + 6r + 12...

    1 Answers · Science & Mathematics · 29/03/2009

  7. r = √21 (square root of 21) means a number times itself ( r x r ) equals 21 r = ∛21 (cube root of 21) means a number times itself three times ( r x r x r ) equals 21

    1 Answers · Science & Mathematics · 19/03/2013

  8. q( r ) = r³ + 7r² - 24r + 6 q'( r ) = 3r² + 14r - 24 extreme value if q'( r ) = 3r² + 14r - 24 = 0 r = -6 r = 4/3 q(-6) = 186 q(-8) = 134 q(-1) = 36 conclusion, for r ∈[-8, -1], q_max = 186

    4 Answers · Science & Mathematics · 16/08/2009

  9. Derivative of e^( r /2) with respect to r = d(e^( r /2))/dr =(d(e^( r /2))/d( r /2)) x (d( r /2)/dr) =e^( r /2)x(1/2) =(e^( r /2))/2 Anti-derivative or indefinite integral of e^( r /2): = ∫(e^( r /2))dr = (e^( r /2))/(1/2) = 2e^( r /2) To find the integral...

    2 Answers · Science & Mathematics · 25/08/2010

  10. R is reflexive, because for any x, x^2 ≤ x^2 R is not symmetric. For example, 2R3 but not 3R2. R ...

    1 Answers · Science & Mathematics · 14/04/2015

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