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  1. ... the product of the number of people and the fare per person: R = PF = -20F² + 900F = 20F(18 - F) The vertex of this...

    1 Answers · Science & Mathematics · 29/01/2013

  2. R'=1.85 f'=24.1

    1 Answers · Science & Mathematics · 03/10/2012

  3. ...in the image of T. However, x^3 is not. Image pf T = span(1, x, x^2) = all polynomials of degree 2

    1 Answers · Science & Mathematics · 27/09/2011

  4. Call Mrs Ren's payment R, Mrs Less's payment L, and the months passed M R = 8500 + 900M L = 5100 + 1100M Now solve 8500 + 900M = 5100 + 1100M

    1 Answers · Science & Mathematics · 25/12/2010

  5. a) how many people put pf 42 ex-smokers enjoy their food more?? n = (5/6) * 42 = (5 * 42) / 5...

    1 Answers · Science & Mathematics · 04/10/2010

  6. let x= number of dimes let y= number of quarters x+y=84 .1x+.25y=15.3 x=84-y .1(84-y)+.25y=15.3 8.4-.1y+.25y=15.3 .15y=6.9 y=46 x=38

    2 Answers · Science & Mathematics · 07/09/2010

  7. y = -2(x + 4)^2 - 6 adding 4 to x shifts to the left by 4 subtracting 6 from the function value shifts downwards by 6

    1 Answers · Science & Mathematics · 04/02/2010

  8. X : salary of employees xmean = 22500 sx = 1500 Pf(22500 - 1500*2.055< μx < 22500 + 1500*2.055) = 0.96 Pf( 19417.5 < μx < 25582.5 ) = 0.96

    4 Answers · Science & Mathematics · 09/01/2010

  9. so further sales = 13520 - (4000+6000) =3520 So income = (0.05)(4000)+(0.06)(6000)+(0.1)(3520) =200+360+352 =912 you were correct mustafa, is not right as he made 3520, 3250 easy mistake to make on a computer!

    2 Answers · Science & Mathematics · 12/01/2013

  10. pi r + 2 r = r (2 + pi) Perimeter of circle = pi d = 2 pi r But you have half a circle so it's "pi r" But don't forget about the straight edge = 2r ------------------------------------------- Think of perimeter as the amount of material or the length of the "line" that you will need to draw...

    8 Answers · Science & Mathematics · 24/07/2009

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