Question

Im stuck on this question pls help thanks, i would rlly appreciate it if you do :')

Answer 1

well, first off, let's see how much foam is needed for just 1 cone, then we'll see how much is it for 160 cones.

`\textit{volume of a cone}\\\\ V=\cfrac{\pi r^2 h}{3}~~ \begin{cases} r=radius\\ h=height\\[-0.5em] \hrulefill\\ r=1.5\\ h=15 \end{cases}\implies V=\cfrac{\pi (1.5)^2(15)}{3}\implies V=11.25\pi \\\\[-0.35em] ~\dotfill\\\\ \stackrel{ \textit{for 160 cones} }{(160)(11.25\pi )}\implies (160)(11.25)(3.14)\implies \text{\LARGE 5652}~in^3`