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solve pls for 50 points

Solve Pls For 50 Points class=

Sagot :

Answer: about 20cm displaced

Step-by-step explanation: 5 times 4cm = 20cm of the cylinder

Check the picture below.

we can simplly check what's the volume before the ball, and check what's the volume after the ball is dropped, and get the difference.

[tex]\stackrel{\textit{volume before the ball}}{V=\pi r^2 h}\qquad \qquad \stackrel{\textit{volume after the ball}}{V_1=\pi r^2(h+4)}~\hfill \stackrel{\textit{their difference is simply}}{V_1-V} \\\\[-0.35em] ~\dotfill\\\\ \pi (5)^2(h+4)~~ - ~~\pi (5)^2h\implies 25\pi (h+4)~~ -~~25\pi h \\\\\\ ~~\begin{matrix} 25\pi h \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~+100\pi ~~ - ~~~~\begin{matrix} 25\pi h \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~\implies 100\pi ~~\approx~~314.16[/tex]

View image jdoe0001