Mathematics, 30.08.2019 02:30, guadalupemarlene2001
B. 8/27 d. 1/3 10. three spheres of radii , 2r, and 3r, respectively, are melted and formed into a new sphere. find the surface area of this new sphere. a. 136.8 r(squared) c. 124.5 r(squared) b. 143.7 r(squared) d. 113.4 r(squared) 11. three spheres of radii r, 2r, and 3r, respectively, are melted and formed into a new sphere. find the volume of this new sphere. a. 54 pi r(cubed) c. 48 pi r(cubed) b. 43 pi r (cubed) d. 32 pi r(cubed)
Answers: 2
![A_{f}=4\pi (\sqrt[3]{36} r)^{2}\\\\V_{f}=\frac{4}{3} \pi (36r^{3})](/tpl/images/0210/6862/3291d.png)
![V_{1}=\frac{4}{3} \pi (r^{3})\\\\V_{2}=\frac{4}{3} \pi (2r)^{3}\\\\V_{3}=\frac{4}{3} \pi (3r)^{3}\\\\V_{f}=\frac{4}{3} \pi (r^{3}+(2r)^{3}+(3r)^{3})\\\\V_{f}=\frac{4}{3} \pi (r^{3}+8r^{3}+27r^{3})\\\\V_{f}=\frac{4}{3} \pi (36r^{3})\\\\V_{f}=\frac{4}{3} \pi R^{3}\\\\R=\sqrt[3]{36} r](/tpl/images/0210/6862/de45f.png)
![A_{f}=4\pi R^{2}\\\\A_{f}=4\pi (\sqrt[3]{36} r)^{2}](/tpl/images/0210/6862/4a1e6.png)
Other questions on the subject: Mathematics
Mathematics, 21.06.2019 19:00, katherinemartinez173
Simplify. −4x^2 (5x^4−3x^2+x−2) −20x^6−12x^4+8x^3−8x^2 −20x^6+12x^4−4x^3+8x^2 −20x^8+12x^4−4x^2+8x −20x^6+12x^4+4x^3−8x^2
Answers: 1
Mathematics, 22.06.2019 01:20, corbeansbrain
Can you me with this question? i'll reward *30 points i just need with this one question so that i could solve the others. * edit: i originally set up the question to reward 30 points, but for some reason i can only reward 15. if you don't get 30, then i'm sorry. i'm still kind of new to this site
Answers: 1
Mathematics, 22.06.2019 01:30, marianasanin2007
Two numbers have a sum of 93. if one number is p, express the other number in terms of p.
Answers: 1
Do you know the correct answer?
B. 8/27 d. 1/3 10. three spheres of radii , 2r, and 3r, respectively, are melted and formed into a n...
Questions in other subjects:
Biology, 06.03.2021 01:00
English, 06.03.2021 01:00
