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Shkiper50 [21]
3 years ago
11

11-5 practice volumes of pyramids and cones

Mathematics
1 answer:
Minchanka [31]3 years ago
4 0

Answer:

Step-by-step explanation:

Volume for a  cone =  1/3 * pi * r^{2} * h

Volume for a pyramid =  1/3 * area of base * h

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well... x is 35 if that's what your'e asking :)

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15~~,~~\stackrel{15+8}{23}~~,~~\stackrel{23+8}{31}~~,~~\stackrel{31+8}{39}~~,~~...~\hspace{10em}\stackrel{common~difference}{d=8} \\\\[-0.35em] ~\dotfill\\\\ n^{th}\textit{ term of an arithmetic sequence} \\\\ a_n=a_1+(n-1)d\qquad \begin{cases} a_n=n^{th}\ term\\ n=\stackrel{\textit{term position}}{59}\\ a_1=\stackrel{\textit{first term}}{15}\\ d=\stackrel{\textit{common difference}}{8} \end{cases} \\\\\\ a_{59}=15+(59-1)8\implies a_{59}=15+472-8\implies a_{59}=479

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3 years ago
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