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sergejj [24]
3 years ago
5

What is the volume of a cylinder with a radius of 9 inches and a height of 2 inches? Use 3.14 for pi. Round your answer to the n

earest hundredth.
500.21 cubic inches
508.68 cubic inches
550.45 cubic inches
561.75 cubic inches
Mathematics
2 answers:
Vesna [10]3 years ago
8 0

Answer:

Volume = 3.14 × 9^2 × 2   ----  Volume = 508.68

Step-by-step explanation:

Katena32 [7]3 years ago
6 0
Volume = 3.14 × 9^2 × 2
Volume = 508.68
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\bf \qquad \qquad \textit{sum of a finite geometric sequence} \\\\ S_n=\displaystyle\sum \limits_{i=1}^{n}\ a_1\cdot r^{i-1}\implies S_n=a_1\left( \cfrac{1-r^n}{1-r} \right)\quad \begin{cases} n=n^{th}\ term\\ a_1=\textit{first term's value}\\ r=\textit{common ratio} \end{cases} \\\\[-0.35em] ~\dotfill

\bf S_{20}=\displaystyle\sum \limits_{n=1}^{\stackrel{\stackrel{n}{\downarrow }}{20}}~\stackrel{\stackrel{a_1}{\downarrow }}{3}(\stackrel{\stackrel{r}{\downarrow }}{1.5})^{n-1}\implies S_{20}=3\left(\cfrac{1-1.5^{20}}{1-1.5} \right)\implies S_{20}=3\left(\cfrac{1-\stackrel{\approx}{3325.3}}{-0.5} \right) \\\\\\ S_{20}=3\left(\cfrac{-3324.3}{-0.5} \right)\implies S_{20}=3(6648.6)\implies S_{20}=19945.8

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3 years ago
Read 2 more answers
Solve the equation for the unknown variable.<br><br> z³ = 10,648
Svetllana [295]
<span>z³ = 10,648
</span>z³ = 22³
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