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  1. θ is in Q4 r = √80 = 4√5 (Pythagoras) sinθ = -8/[4√5] = [-2√5]/5 = (-2/5)√5 cosθ = 4/[4√5] = [√5]/5 secθ = 5/√5 = √5 sinθ + secθ = (1-2/5)√5 = 0.6√5 k = 0.6

    2 Answers · Science & Mathematics · 28/04/2019

  2. 5.62 = 2 * pi * r * 105/360 2.81 = pi * r * 15 * 7 / (15 * 24) 2.81 = pi * r * 7/24 2.81 * 24 / (7 * pi) = r r = 3.0666883891764061269295774290978 3.07 cm

    2 Answers · Science & Mathematics · 17/06/2019

  3. ... of Circle / 2*radius Circumference = 2π*r Given r = 1 for the unit circle Given Arc Length...

    1 Answers · Science & Mathematics · 16/11/2019

  4. Circumference is 2 *Pi * r = 2 * 3.14 * .75 = 1.5 * 3.14 = 4.71 circle has 360 degrees so the path is 85/360 percent of the circumference 85 / 360 * 4.71 = 1.11

    1 Answers · Science & Mathematics · 17/06/2019

  5. Area A = π r² ......radius r = 6 cm ......A = π (6 cm)² ......A = 36π cm² There...

    5 Answers · Science & Mathematics · 16/06/2019

  6. ...minus cost. So when at full capacity, the revenue and costs are: R() = 150 * 460 R() = 69000 C() = 72.5 * 150 C() = 10875 For...

    3 Answers · Science & Mathematics · 26/06/2019

  7. pisgachemist is correct in that to actually calculate the enthalpy change for this reaction using enthalpies of formation, you do need to know specifically which isomer of butene you are beginning with. If you know that, his answer is absolutely correct. There...

    2 Answers · Science & Mathematics · 05/06/2019

  8. ... on B = -3+4(4)=13 2/ Hint: The Vector R is twice as long as the vector S ---> |R| = 2|S| ...

    1 Answers · Science & Mathematics · 22/07/2019

  9. ...a(n) = ar^(n - 1) Where a is the first term and r is the common ratio. We don't know these yet but have two...can have two possible values for S(12) depending on if r = -2 or r = 2.

    6 Answers · Science & Mathematics · 01/06/2019

  10. ...positive direction. Conservation of angular momentum during the collision phase. m = mass R = Radius of disc A ρ = material density h = material thickness...

    1 Answers · Science & Mathematics · 08/02/2020

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