Acylinder has a height of 1.2 cm and the following base.



what is the surface area of the cylinder in square millimeters?

157 mm2
533.8 mm2
194.68 mm2
266.9 mm2

The surface area of the cylinder is

Step-by-step explanation:

we know that

The surface area of the cylinder is equal to

In this problem we have

----> see the attached figure

assume

substitute

answer: the price of one pound cabbage = $ 0.8

the point (10,8) represents that the cost of 10 pounds cabbage is $ 8

step-by-step explanation:

since, here is a proportional relation between the number of pounds of cabbage (x) and the price in dollars (y).

therefore, we can write,

⇒ y = k x

where k is the constant of proportionality.

now, point (5,4) is in the line.

thus, it will satisfies the above equation of line.

⇒ 4 = 5 k

⇒ k = 0.8

thus, the equation of the line is,

y = 0.8 x

a) for x = 1,

y = 0.8

therefore, the cost of one pound of cabbage is 0.8 dollars.

b) in the below graph (10,8) represents that the cost of 10 pounds of cabbage is 8 dollars.