D, its (x,y) and (8.2,5.7) are the only ones that match up
Option b: 10 in, 18.5 in, 31.5 in.
Explanation:
The three sides of a triangle are
and 
The perimeter of the triangle is
.
Since, Perimeter = all sides of the triangle
Let us add all the three sides to determine the length of each side.

Substituting the value of Perimeter and simplifying, we get,

Substituting
in the three sides of the triangle
and
, we get,



Thus, the lengths of each side are 10 in, 18.5 in, 31.5 in.
Let x equal the width. Since the length of the base is 96 yards, multiply that times 2 for 192. Then using the parameter formula 2w+2b=P, you get 2x+192=356. Subtract both sides by 192, then divide by 2.
Answer:
p ( x ) = ( x- 6 ) ² - 256
Step-by-step explanation:
1- Add the same value to both sides
2- Add 36 to the expression
3- Add 36 to the left-hand side
4- Factor the expression
5- Move the constant to the right
6- Calculate
Answer:
27
Step-by-step explanation:
1+2=3
3+4=7
7+8=15
15+12=27