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  1. 2) (5-4 x )/7 = (3-11x)/12= 60 - 48x = 21 - 77x 29x = - 39 x = -39/29

    5 Answers · Science & Mathematics · 30/03/2009

  2. ...trigonometric identity, so you were probably expected to know it. sin(pi - x ) = sin(pi)*cos( x ) - cos(pi)*sin( x ) sin(pi - x ) = 0*cos( x ) - (-1)*sin( x ) sin(pi - x ...

    2 Answers · Science & Mathematics · 20/10/2011

  3. c) is easy; they're just asking for C(0). To do the rest, set C' = 0. Since C'' is uniformly = 10 (Helloooo! Upward-facing parabola!), that critical point will indeed be a minimum. C and C' at the...

    1 Answers · Science & Mathematics · 20/05/2008

  4. to check youmcan just take the speed times the time and see if it is the correct distance 9 * 1/2 + 3 * 1/2 = 6 so it checks

    1 Answers · Science & Mathematics · 24/10/2012

  5. ...end of a 6 mile track. John Doe , an average walker, is on the other...39;s average speed exceeds John 's by 6 mph, find the speed of both...wildebeast speed L = lion speed x = time Lx = .02 * W...

    1 Answers · Science & Mathematics · 29/06/2012

  6. Olimpiada's speed— x : 1/2( x + x - 6) = 6 2x - 6 = 12 2x = 18 x = 9 John 's speed: = 9 - 6 = 3 Answer: Olimpiada's speed, 9 mph; John 's speed, 3 mph

    1 Answers · Science & Mathematics · 04/01/2010

  7. Speed of canoe ( x ), speed of current (y), time canoeing from passing the log and back to the... and 2nd equations: y(t + 1) = 2 y = 2/(t + 1) - ( x - y) + t( x + y) = 2 - x + y + tx + ty = 2 y + ty = x + 2 - tx y(1 + t) = ( x + 2 - tx) y = ( x ...

    1 Answers · Science & Mathematics · 22/10/2009

  8. Terry paid for 70% of the original ticket price. So: x * .70 = £22.75 x = £22.75 / .70 = £32.50

    7 Answers · Science & Mathematics · 09/10/2008

  9. ... 70 with a spread (standard deviation) of 5 points. Now, if student John Doe scores 65 percent, what is his Z score or relative ...

    1 Answers · Science & Mathematics · 18/11/2013

  10. 1. 18/60 = x /100 x =18*100/60 x =30% 2. 30/500 = x /100 x =30*100/500 x =6%

    10 Answers · Science & Mathematics · 19/05/2009

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