See the attached picture.
First calculate the length of each side.
Using the side length multiply by the number of sides to find the perimeter.
Then the area is 1/2 x perimeter x apothem.
Answer:
Marcelino will break even
Step-by-step explanation:
if he spends 45 dollars on profits, and sells each balloon for $1.50 then you multiply 30 balloons by 1.5 and that equals 45 dollars, so he will break even
You can do this with foil
F(which is the first term of both factors): 4*sqrt(7)
O(outside terms of both factors first and last) 4*sqrt(2)
I (Inside terms 2nd and 3rd) = - sqrt(3) sqrt(7) = - sqrt(21)
L (Last term in each of the factors) - sqrt(3)*sqrt(2) = - sqrt(6)
Combine terms: 4*sqrt(7) + 4*sqrt(2) - sqrt(21) - sqrt(6) <<<< answer.
When finding the square root of any number there is is the + and - root
when using this information to solve a problem only the positive root is used
you can't solve involving measurements using the - root
hope this helps
