Sort by

- Relevance
- |Time

... 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

...in the image of T. However, x^3 is not. Image

**pf**T = span(1, x, x^2) = all polynomials of degree 21 Answers · Science & Mathematics · 27/09/2011

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

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

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

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

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 ) = 0.964 Answers · Science & Mathematics · 09/01/2010

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

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