Answer:
A ≈ 2 ft²
Step-by-step explanation:
The area (A) of a triangle using Heron's formula is
A =
where s is the semiperimeter and a, b , c the sides of the triangle.
s = =
=
= 4.5
Then
A =
=
=
≈ 1.9843...
= 2 ft² ( to the nearest square foot )
Answer:
15 days
Step-by-step explanation:
You have 5 cups of food, and you give him 1/3 a day.
So, <em>5 divided by 1/3</em>, which would get you 15 days. Or you could cross-multiply, meaning you multiply across, but in this case I just made them line up so you can see how to do it.