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1. ### The x- intercept of the graph pf the line -2x - 4y = -20 is?

The answer is A -2x/-2 will cancel out and -20 / -2 is = to 10 so x-intercept is (10,0)

7 Answers · Science & Mathematics · 24/09/2012

2. ### A rectangle has a length pf x . Its width is 3 feet longer than twice the length. Find the dimensions if its a

width = 2x +3 length = x Area = length * width 80 = x(2x+3) i think you can do the rest.. hehehe

2 Answers · Science & Mathematics · 03/04/2008

3. ### Find the distance between each point pf parallel line with the given equation.?

well, do you mean the distance between the two lines..not necessarily points because their linear equations... If so, Well, if you think about it, when the lines cross the y axis, the first one crosses the y axis at (0,-11) and the second one...

1 Answers · Science & Mathematics · 21/01/2013

4. ### plz help me.....what is the factor of the expression pf?

Hint: you want numbers that, depending on the sign of the last term, have their product be the last tem and sum (or difference) be the middle term. For the four examples given, the numbers are 1, 2; 2, 5; 2, 3; and 5, 8. Some...

1 Answers · Science & Mathematics · 25/06/2008

5. ### Find the intercepts pf the following linear equation. x - 8y - 16 = 0?

Hi, For this question, recall that the x-intercept occurs when y = 0 and therefore we get: x - 8(0) - 16 = 0 x = 16 or (16,0) = x-intercept Now, the y-intercept occurs when x = 0 and therefore we get: 0 - 8y - 16 = 0 -8y = 16 y = -2 or (0,-2) = y-intercept I hope that helps...

6 Answers · Science & Mathematics · 16/09/2009

6. ### Find the elasticity pf demand E(p). D(p)= 500/p p=2 CALCULUS!! Please help! THANKS!?

"(In determining elasticity, absolute values govern--negative and positive signs may be omitted.)" E = p/D(dD/dp) dD/dp = -500/p^2 D(2) = 250 dD/dp@2 = -125 E(2) = 2(125)/250 = 1 At the given price the...

1 Answers · Science & Mathematics · 22/05/2007

7. ### 2tanx sinx = square root pf 3tanx . find intervals frm o to 2pi?

2 tanx sinx = √3 tanx => 2 tanx sinx - √3 tanx = 0 => tanx (2sinx - √3) = 0 => tanx = 0 or sinx = √3/2 => x = kπ or x = kπ + (-1)^k (π/3) => x = { 0, π/3, 2π/3, π, 2π } taking x ∈ [0, 2π]

3 Answers · Science & Mathematics · 04/07/2008

8. ### A tangent is drawn to the graph pf y = x^3 -3x^2 + 6x -5 at its only infection point. The equation of this inflectional tangent is?

If a graph has an inflection point, the slope changes from + to - at that point. (or vice versa). As such, the slope of a tangent line at that point must be zero. NOW, which of those answers are of the form: y = 0x + b or more commonly y = b always, tony

1 Answers · Science & Mathematics · 25/12/2014

9. ### (math)The canteen staff find that they can butter 65 sandwiches with a 500g packet pf butter which cost \$3.85.?

a) 500 gm of butter is required for 65 sandwiches Therefore each gm of butter will suffice for 65 / 500 = 0.13 sandwich b) 0.13 sandwich requires 1 gm of butter Therefore 403 sandwiches require 403 x 1 / 0.13 = 3100 gm of butter cost of butter per day @ \$ 3.85 for...

4 Answers · Science & Mathematics · 14/05/2010

10. ### Algebra -16t^2-8t+64?

-16t^2 - 8t + 64 = -8(2t^2 + t - 8)

3 Answers · Science & Mathematics · 12/06/2011