A cylinder has a height of 7 m and a radius of 9 m. What is the surface
area of the cylinder?
Use 3.14 for pi and provide your answer accurate to two decimal
places.
Tabel required
7 x (x) x x ✓
@ (_) |XI S ATI

904.32m^2

Step-by-step explanation:

Surface area of a cylinder

= 2 pi rh + 2pi r^2

Given Height h = 7m

Radius r = 9m and

Pi = 3.14

Surface area = 2 x 3.14 x 9 x 7 + 2 x 3.14 x (9)^2

2 x 3.14 x 9 x 7

+

2 x 3.14 x 9x9

Simplify each sides

395.64 + 508.68

904.32m^2

i would have to say it is c.

the direct variation says that:

then the equation is of the form is given by:

            where k is the constant variation.

from the given table:

consider any value of x and m(x)=y

x = 2 and m(x)=y = 3

substitute these value in [1]; we have;

divide both sides by 2 we get;

⇒

check:

put x = -1 and m(x) = -1.5

substitute in the equation:

-1.5 = -1.5                   true

therefore, the function m(x) represents a direct variation

graph of this function as shown below: