<h2>Hello my friend.</h2>
The Pi value is approximately equal to 3.14.
<h2>I hope I have helped a lot.</h2>
Answer:

Step-by-step explanation:
From the question we are told that:
Rate 
Height 
Radius 
Generally the equation for Volume of Cone is mathematically given by


Differentiating



Answer:
Rhian did better in the Math test.
Step-by-step explanation:
Given: Rhian scored
out of
in a Math test. In the English test she scored
out of
.
To find: In which test did she do better?
Solution:
We have,
Rhian scored
out of
in a Math test.
Rhian scored
out of
in an English test.
So, first we need to find the percentage of the marks scored.
Percentage in the Math test
.
Percentage in the English test
.
Clearly, the percentage in the Math test is greater than the percentage in the English test.
So, Rhian did better in the Math test.
Answer:

Step-by-step explanation:
Given:

where,
T = total amount of waste
P = 50, the initial rate
k = 0.04
t = time

now we need to solve this integral!




when any number has a power of negative infinity it is 0. because:
, like something being divided by a very large number!


this is the total amount of waste