Since 3 squared is 9 and 4 squared is 16, the square root of 13 will fall somewhere between 3 and 4
C. 14.9 because the second number is 5 so you drop the seven and the 5 and round the 8 up to 9
Answer:

Step-by-step explanation:
We are given the following;
- Vertex of a quadratic function = (5,3)
- A point where the function passes through (-1, -9)
Required to determine the equation of the function;
- We need to know the vertex form of a quadratic function is;
, where h and k correspond to the vertex (h,k)
- Therefore, we can replace the variables h and k of the vertex in the equation;
That is;

Then we use the equation and the point given to solve for a
x = -1 and y = -9
We get;

Substituting the values of a, h and k in the equation, we get;

Thus, the equation of the function in the vertex form is 
Perimiter=legntho f straw=12x^2-6
if x=1.5 inches
12(1.5)^2-6=legnth
12(2.25)-6=
27-6=
21
legnth is 21 inches