Triangle
ABC
ABC
with the given measurements is rotated in space about side
AB
AB
. Which answer gives the solid formed and its surface area?

Cone with surface area
A=π⋅Z⋅X+π⋅
L
2
A=π·Z·X+π·L2

Triangle with surface area
A=
1
2

⋅Z⋅Y
A=12·Z·Y

Cone with surface area
A=π⋅Z⋅Y
A=π·Z·Y

Pyramid with surface area
A=
1
2

⋅
P
base
⋅L

use an equation of ratios to determine the amount of gas needed to fill the tank.

    0.2             0.8

  =    

288.75             x

                                                              231 gal

so, 0.2x = (0.8)(288.75 gal), and x = = 1155 gal.

                                                                0.2

it would take 1155 gal. to fill the tank.

the cost would be

1155 gal         $3

* = $3465   (answer)

      1           1 gal

hope this you

the diameter is 16 cm. are you a teacher?

step-by-step explanation:

d. $180

step-by-step explanation:

if the dimensions of the room is 9ft by 12 ft, we have the area of the floor as,

so the area of the floor is 108 square feet, converting that into square yards we get,

the cost of carpet is $15 per square yard, therefore the cost of carpet for 12 square yards is,

hence, the cost of carpet is $180.

assuming the dimensions of the room be,

15 ft by 12 ft

so, the area of the floor of that room is,

we can convert 180 square feet into square yards, we know that,

1 sq ft = 0.111 sq yard

so, 180 square feet is,

so the area of floor is 20 square yards.

now, the cost of carpet is 15 dollars per square yard, therefore the cost of carpet for 20 square yards is,

so, it will cost $300.