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  1. if the track and field hs half a circle at ...rectangle has dimensions L and W say the W is... diameter is W the r = W/2 the perimeter of the circle = 2pi...

    2 Answers · Science & Mathematics · 07/05/2019

  2. Let the center of the left curve be L , the center of the right curve be R . And let the point of intersection of both rails be X . LX...

    2 Answers · Science & Mathematics · 12/09/2016

  3. ...and L , the length of the arc of the circle (here 50cm) : the link is : a = L / R so : R = D/2 = L /a and finally D = 2L/a for the...

    4 Answers · Science & Mathematics · 02/09/2013

  4. ...0-1) ... ⇒ y = -2 (x-1)/2 = (0-1) ... ⇒ x = -1 {3,2,0} is perpendicular to L which has direction {2,-3,1} Answer: r (t) = {-1,-2,0} + t {3,2,0} Answer: θ = arcsin[2100/2600] ≈ 53°

    2 Answers · Science & Mathematics · 14/06/2013

  5. ...gt; R ] * [E> F] 6,7, Conj 9. R v F 3,8, CD tells me if i guessing luckier, or is a ways off tracks , most please.

    1 Answers · Science & Mathematics · 06/05/2013

  6. ...three times and as well as the perimeter W=9 L =12 P=42 Answer is D, 9 #7 is easy, they try to confuse you. The track is still 2 miles long; thus, they will go 500...

    2 Answers · Science & Mathematics · 08/02/2013

  7. ... need to get an equation for the area of a 400m track . You can start with the radius of the semicircles... fixed at 400 yards, so given r or l , you can determine the other. Let's start with radius...

    3 Answers · Science & Mathematics · 16/01/2013

  8. area = pi r ^2 + 2Lr perimeter = 1 = 2pi r +2L solve perimeter for L L = (1- 2pi r )/ 2 substitute into area equation A=pi r ^2 + r (1- 2pi r ) find dA/dr set to zero solve for r

    1 Answers · Science & Mathematics · 27/11/2012

  9. ... correctly, ... in any case if you rref the matrix then , keeping track of which variable goes with each column you should be able to read off how the...

    1 Answers · Science & Mathematics · 26/10/2012

  10. ... rid of width -therefore total area (At) of track is rectangle plus 2 halves (aka a whole..., with variables only Pt = 2 ( L ) + 2 (pi R ) = 2 ( L + pi* R ) ; but since you ...

    4 Answers · Science & Mathematics · 21/08/2012

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