Look at question #8. q: about how many songs can he download in 2 hours

We are told that 1,024 kilobytes (kB) is equal to 1 megabyte (MB).

We are also told that Timothy's computer downloads at a rate of 256 kB per second. So let's convert this to MB:

So now we know Timothy's download rate is 0.25 MB per second.

We know there are 60 seconds in a minute, so to find how many MB can be downloaded in a minute, we must multiply by 60:

So in 1 minute, Timothy can download 15 MB worth of songs. But to find the amount in 1 hour, we must multiply by 60 again:

So in 1 hour, Timothy can download 900 MB worth of songs. However the question asks for two hours; so we multiply by 2:

In 2 hours, Timothy can download 1,800 MB worth of songs. We are told a typical song is 4 MB, so let's divide by 4:

So now we know that Timothy can download B) 450 songs in 2 hours.

3 units

Step-by-step explanation:

the volume of a cone C = πr²h/3

C = 18π, h =2x, r = diameter/2 = 2x/2 =x

18π = π* x²* 2x/3

divide through by π

18 = x² * 2x/3

multiply through by 3

54 = 2x³

divide through by 2

27 = x³

x =∛27 = 3

x = 3 units = radius