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  1. Total resistance of the branch on the right = 40 + R [1] Resistance of 30 ohms in parallel... = 75 * (30(40+ R )/(70+ R )) / (5 + 30(40+ R )/(70+ R )) * R /(40+ R ) [4] But...

    2 Answers · Science & Mathematics · 21/09/2020

  2. It excludes solutions that may be in the set of complex numbers. It lets you know that the solution set isn't limited to integers or some other condition.

    1 Answers · Science & Mathematics · 23/09/2020

  3. V=π r ^2h V=πx(1.75/2)^2 x 3.23 V=7.77cm3 p = m/V  p = 65.3/7.77  p = 8.404 g/cm3 Brass has a density of around 8.4 g/cm3

    2 Answers · Science & Mathematics · 08/09/2020

  4. x= r cos t=4/9, y= r sin t=-sqrt 65/9, r = sqrt(x^2+y^2)=1, cos t= x/ r =4/9

    2 Answers · Science & Mathematics · 06/09/2020

  5. ...ll omit them for now) A = πr² . . . of course dA/dr = 2π r The chain rule says that: dA/dt = dA/dr * dr/dt 360...

    1 Answers · Science & Mathematics · 14/09/2020

  6. ...triangle.  The formula for volume of cone is 1/3  pi r ^2 h. where h is the height of the cone and  r is...at the top or the bottom of the circle. In either case r would be 0, and h would either be 0 or 20, both resulting...

    1 Answers · Science & Mathematics · 22/09/2020

  7. ...13) / 6 = -2 y - 13 = -12 y = 13 - 12 y = 1 Your error is here: 4/-2= r /9 -2 is not the ratio between the variables.  Your formula...

    2 Answers · Science & Mathematics · 01/09/2020

  8. 2r =f(x) -g(x) Altitude x=6    . . . x^2 + r ^2 = (2r)^2 = (2r)^2 => x = r √3 => x/√3 Lower limit = 0 Upper...

    1 Answers · Science & Mathematics · 02/09/2020

  9. circumference of a circle is 2*pi* r so circumference is 1680*pi CR arc's length is 1500 feet...

    2 Answers · Science & Mathematics · 07/09/2020

  10. It would help to sketch the function.  Domain is R (all real numbers) Range is y≥-3 X-int: (3,0) and (5,0) Y-int: (0,9) Axis of symmetry: x=-3  Vertex: (4,-3)  Min: (4,-3)

    1 Answers · Science & Mathematics · 22/09/2020

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