3 years ago

What is the value of n? •3 •5 •17 •25

Mathematics

2 answers:

labwork [276]3 years ago

7 0

Answer:

Step-by-step explanation:

Alenkinab [10]3 years ago

5 0

Answer: 17

Step-by-step explanation:

Set the equations equal to each other. Then, get the variable on one side. Then, get the constants to one side. You should be left with -2n=-34, which equals 17.

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What is the best approximation of the surface area of this right cone?

inn [45]

$\bf \textit{total surface area of a cone}\\\\
s=\pi r\sqrt{r^2+h^2}+\pi r^2\quad 
\begin{cases}
r=radius\\
h=height\\
-----\\
r=12\\
h=9
\end{cases}
\\\\\\
s=\pi (12)\sqrt{12^2+9^2}+\pi (12^2)\implies s=12\pi \sqrt{225}+144\pi 
\\\\\\
s=12\pi (15)+144\pi \implies s=180\pi +144\pi \implies s=324\pi$