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Let H cm be the height of the can when

**R**=4.2 cm, then piHR^2=725 => H=725/(17.64pi... the height is reduced by 1 cm, (**r**+4.2)^2=1/(1/17.64-pi/725) =>**r**=1/sqr(1/17.64-pi/725...2 Answers · Science & Mathematics · 05/05/2019

a) The circumference of a circle is 2π

**r**, so Quinn ran (3/4)(2π)(32 m) = 151 m (rounding to ...1 Answers · Science & Mathematics · 12/06/2019

... = KE = ½mV² = ½(500)(√(2GM/

**r**))² = 250(2GM/**R**) = 500(3.98e14) / (6.37e6) = 3.12e10 J...3 Answers · Science & Mathematics · 01/08/2019

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 = 0.62 Answers · Science & Mathematics · 28/04/2019

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 cm2 Answers · Science & Mathematics · 16/06/2019

... of Circle / 2*radius Circumference = 2π*

**r**Given**r**= 1 for the unit circle Given Arc Length...1 Answers · Science & Mathematics · 16/11/2019

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 = 1.111 Answers · Science & Mathematics · 16/06/2019

Area A = π r² ......radius

**r**= 6 cm ......A = π (6 cm)² ......A = 36π cm² There...5 Answers · Science & Mathematics · 16/06/2019

...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 · 25/06/2019

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