Step-by-step explanation:
12x - 6
-12x - 6
-12x + 6
-12x2 + 6x
12x - 6
Option A and E are the correct answer
The answer is 1:13 you have to divide
Answer:
about 8 cm
Step-by-step explanation:
The formula for the area of a regular polygon is ...
A = 1/2Pa . . . . where P is the perimeter and "a" is the apothem, the distance from the center to a side
Filling in your numbers, we have ...
20 cm^2 = (1/2)P(5 cm)
Dividing by the coefficient of P, we find ...
2×(20 cm^2)/(5 cm) = P = 8 cm
The perimeter of the pentagon is about 8 cm.
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<em>Comment on the problem</em>
This calculation makes use of the area formula, as apparently intended. A regular pentagon with an apothem of about 5 cm will have an area of about 90.8 cm^2. The given geometry is impossible, as the pentagon is nearly 10 cm across. It cannot have a perimeter of only 8 cm.
Given:
Jerome ate 1/2 of the sandwich , Kevin ate 1/3 of the sandwich, and Seth ate the rest.
To find:
The ratio of jerome's share to kevin's share to seth's share.
Solution:
Jerome ate 1/2 of the sandwich. So,
Jerome's share = 
Kevin ate 1/3 of the sandwich. So,
Kevin's share = 
Seth ate the rest. So,
Seth's share = 
= 
= 
The ratio of jerome's share to kevin's share to seth's share is:

To simplify the ratio multiply the ratio by 6.


Therefore, the ratio of jerome's share to kevin's share to seth's share is 3:2:1.