Answer:
The volume of a cone is given by the equation:

where
r is the radius of the cone
h is its height
We have several examples of cones in real life: for instance, the cone of an ice-cream, it has a conic shape.
The volume of a prism instead is given by:

where:
l is the length of the base
w is the width of the base
h is the height of the prism
Again, we have several examples of prisms in daily life: for example, boxes have usually the form of a prism, so it can be useful to know their size in order to calculate their volume.
Answer:
Step-by-step explanation:
LHS a - b = -9 - (-6) = -9 +6 = -3
RHS b-a = -6 - (- 9) = -6 +9 = 3
as LHS not equal to RHS
a-b not equal to b-a
Thus proven
Sorry but where is the question
Here’s the first few and you can do the rest with the same principles. If you need more help with the last ones then let me know
Given

To obtain the minimum value of y, we first take the derivative of y
The derivative of y is:

Equating

gives the minimum value we require.
Doing that, we have:

So that

Therefore, the minimum value is x = 3