Answer:
Volume V= πr²h
Volume V= base * height
Step-by-step explanation:
Volume is the capacity of an object which is obtained by multiplying area with height. Volume of a cylinder is generally calculated by two formulas.
Volume of a cylinder V= πr²h Where r is the radius and h is the height
Volume of a cylinder V= base * height
If we analyse the two formula keeping in mind that the base of the cylinder is circular . The area of a circle is given by πr². In this first formula we can find the area of the base by applying the formula of the circular region. Volume is measured by multiplying length , breadth and height, or area with height. In both the formulas given above we find the area and then multiply with the height.
Answer:

at 
Step-by-step explanation:

Differentiating with respect to
means
and
are constants. So we differentiate only the
term.
Assume
.
Let
.

Also,
becomes


By chain rule,


Adding back the constants,

Equating this to 0,




Using this value of
in the expression for
,
(since
)
Answer: 272.9 cm^2
How to:
25 * 8 = 200
9 * 8.1 = 72.9
Add the areas of the two rectangles
200 + 72.9 = 272.9 cm^2
Answer:
15$
Step-by-step explanation:
you need to check how much of e costs and you do that by dividing the price by the amount and than comes up to 1.5 that's for 1 and for 10 it's 15 hope that helps