Answer:
7536
Step-by-step explanation:
Given that:
Rate of decreasing of radius = 12 km/sec
Height of cylinder is fixed at = 2.5 km
Radius of cylinder = 40 km
To find:
The rate of change of Volume of the cylinder?
Solution:
First of all, let us have a look at the formula for volume of a cylinder.
Where is the radius and
is the height of cylinder.
As per question statement:
= 40 km (variable)
= 2.5 (constant)
As are constant:
Store 1 because there’s a greater variety !!!
Answer:
42
Step-by-step explanation:
1st- gained lost 800, gained 900
2- lost 400- gained 600
so in all she lost 1200
but then gained 1500