Sand is leaking through a small hole at the bottom of a conical funnel at the rate of 12cm3/s . if the radius of the funnel is 8 cm and the altitude of the funnel is 16 cm, find a) the depth of the salt water after 30 second

b)the rate of change of its depth at that instant

h ≅ 16.29 cm

Step-by-step explanation:

From the conical funnel;

Let the adjacent line at the base of the cone be radius (r) and the opposite ( vertical length) be the height (h)

Then;

∴

The volume (V) of the cone is expressed as:

Given that:

Then:

∴

c = 0

So;

t = 30

h = 16.2865

h ≅ 16.29 cm

Thus;

from

answer by yourhope:

hi! : )

a farmer that lived in ancient egypt would most likely be barried in the sand, in the desert!

: )

all you have to do is multiply them both to see how many out comes you can put:

3 x 2 = 6

you can make 6 diferent combinations of crusts and toppings.

~batmans wife dun dun