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  1. V = 4/3(pi)( r ^3) + pi* r ^2*h  .....(1) Find h when the radius is 3 cm.  Given...to "t" (Time); dv/dt = (4/3)π(3r^2)(dr/dt) + π[h(2r)(dr/dt) +( r ^2)(dh/dt)], Given; r = 3 cm, v = 81π cm3, dr/dt = 2 cm/min, dv/dt = 204π...

    1 Answers · Science & Mathematics · 04/04/2021

  2. Presuming your equation is: PV = R [1 - (1 + i)^(-n)] / i If it's 3.4% interest rate (0.034) and you are...

    2 Answers · Science & Mathematics · 05/04/2021

  3. area of circle = π r ^2 If our diameter is 5 cm, our radius is 2.5 cm area = π(2.5)^2 = 6.25π cm^2 circumference of circle = 2π r or πd circumference = 5π cm So, option C is correct

    2 Answers · Science & Mathematics · 18/03/2021

  4. Given P = 200,000 r = 8% interest  t = 5 years n = 4 Apply The compound interest formula: A = P(1 + r /n)^(nt) A = 200,000(1 + 0.08/4)^[4(5)] A = 200,000(1.02)^20 A = $297189.48 Answer//

    4 Answers · Science & Mathematics · 21/03/2021

  5. Amount A = P(1 + r )^(t) Given P = $1 r = 4% = 0.04 t = July 4 2076 - July 4 1776 = 300 years A = 1(1 + 0.04)^(300) A = $128,825.49

    3 Answers · Science & Mathematics · 02/04/2021

  6. it's not a theorem, it's a fact. A = 2πr² + 2πrh = 2π r ( r +h) 2π r ( r +5) = 208π r ( r +5) = 104 r² + 5r – 104 = 0 ( r – 8)( r + 13) r = 8, – 13 skipping the negative answer, r = 8 ft

    3 Answers · Science & Mathematics · 05/04/2021

  7. Apply the Pythagorean theorem. r = √(x^2 + y^2) r = √(-3^2 + 11^2) r = √(130) Answer//

    2 Answers · Science & Mathematics · 31/03/2021

  8. This is a simple geometric series with a₁ = 14400 r = 0.95 (multiplying by 0.95 is the same as reducing by 5...

    1 Answers · Science & Mathematics · 30/03/2021

  9. #1 ; a = 2  #5 ; =ar^4 = 512  Divide r ^4 = 256  r = 256^(1/4)  r = 4  Hence #3 ; ar^2 = 2(4)^2 = 32 

    5 Answers · Science & Mathematics · 09/04/2021

  10. The formula for simple interest is: I = Prt P : original principal (5000) r : annual rate, as a decimal t : time in years 600 = 5000 * r * 6 600 = 30000r r = 600/30000 r = 6/300 r = 2/100 r = 0.02 (or 2%)

    5 Answers · Science & Mathematics · 28/03/2021

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