Answer: 
Step-by-step explanation:
The inradius is given by the area of the triangle divided by the semiperimeter.
The semiperimeter is
.
Thus, by Heron's formula, the area is
.
Therefore, the radius is 
It seems like there are answer choices but you forgot to post them. If you want to simplify then
2*sqrt(7) - sqrt(28) = 2*sqrt(7) - sqrt(4*7)
2*sqrt(7) - sqrt(28) = 2*sqrt(7) - sqrt(4)*sqrt(7)
2*sqrt(7) - sqrt(28) = 2*sqrt(7) - 2*sqrt(7)
2*sqrt(7) - sqrt(28) = (2-2)*sqrt(7)
2*sqrt(7) - sqrt(28) = (0)*sqrt(7)
2*sqrt(7) - sqrt(28) = 0
So the whole complicated expression simplifies to 0 (zero)
This is because sqrt(28) = 2*sqrt(7) when you simplify sqrt(28)
Side Note: "sqrt" is shorthand for "square root"
Answer:
y = 270x + 100
The x represents the number of months
and the 100 is the one time application fee
Step-by-step explanation:
Answer: For a given quadratic y = ax2 + bx + c, the vertex (h, k)
Step-by-step explanation:
2/9=2.50
Allowence=2.50x9 divided by which gives you an answer of 11.25
Hope this helps you!