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

3 years ago

If i have 45 pen is ;) and 90 coins how much is that total

Delicious77 [7]

Answer:

40.90

Step-by-step explanation:

I do not know what pen is but if it is dollars then....

4 0

3 years ago

You work at the front desk of a luxury hotel. Guests staying at the hotel have two options for accessing the hotel's wireless in

nadya68 [22]

For 3 days....

option 1 : 25(3) + 0.10m = 75 + 0.10m
option 2 : 60(3) = 180

180 < 75 + 0.10m
180 - 75 < 0.10m
105 < 0.10m
105 / 0.10 < m
1050 < m.....this is minutes, we need hrs
1050/60 < m
17.5 < m.......the guest would have to spend more then 17.5 hrs

8 0

3 years ago

Find a degree 3 polynomial with leading coefficient of 4 and zeros -2, 1, and 5

Alex Ar [27]

Answer:

4x^3-16x^2-28x+40

It will take a while to describe how i got this, but i checked the zeroes are ok.

4 0

2 years ago