Six equilateral triangles are connected to create a regular hexagon. the area of the hexagon is 24a2 – 18 square units. which is an equivalent expression for the area of the hexagon based on the area of a triangle?
a. 6(4a2 – 3)
b. 6(8a2 – 9)
c. 6a(12a – 9)
d. 6a(18a – 12)

6(4a2 - 3)

Step-by-step explanation:

Six equilateral triangles are connected to create a regular hexagon. The area of the hexagon is 24a2 – 18 square units. Which is an equivalent expression for the area of the hexagon based on the area of a triangle?  

a. 6(4a2 – 3)

b. 6(8a2 – 9)

c. 6a(12a – 9)

d. 6a(18a – 12)

Step-by-step explanation:

The answer is: a. 6 (4a2 - 3)

Since the area of the hexagon is equal to: 24a2 - 18, being 6 the triangles that form the hexagon, it would give us this result: 6 (4a2 - 3); 6 x 4a2 - 6 x 3; 24a2 - 18.

homozygous. one is homozygous, while two is heterozygous.

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.