Check the picture below.

$\bf \textit{lateral area of a cone}\\\\
LA=\pi r\stackrel{slant-height}{\sqrt{r^2+h^2}}~~
\begin{cases}
LA=539\pi \\
r=49
\end{cases}\implies 539\pi =\pi 49\sqrt{r^2+h^2}
\\\\\\
\cfrac{539\pi }{49\pi }=\sqrt{r^2+h^2}\implies 11=\sqrt{r^2+h^2}$

3 0

2 years ago

Simplify 2(2x+6)+6(2x+2)+5=16x+30

Debora [2.8K]

Answer:

16x=16x+1

0=1

Step-by-step explanation:

4x+12+12x+12+5=16x+30

16x+29=16x+30

16x=16x+1

4 0

2 years ago

Help me with this math problems please only the ones that are circled

joja [24]

For #1 the answers are
69 degrees
155 degrees
86 degrees
335 degrees
249 degrees

5 0

2 years ago