Answer:
Step-by-step explanation:
Perimeter of a rectangle = 2(L+W)
L is the length of the triangle
W is the width
If the perimeter of a rectangle is represented by the expression 
In order to know what wat each part represents, we will rewrite the given equation in the form 2(L+W).
Given

Perimeter of a rectangle

Compare the given function with the perimeter to get L and W

Hence the following statements explain correctly what each part of the expression represents
- One side of the rectangle measures x (the length)
- One side of the rectangle measures 3x + 1 (the width)
- 2 is the coefficient in each term that represents 2 lengths and 2 widths in a rectangle.
Answer:
D
Explanation: All triangles must equal to 180, so we can say that st=ut and that will give us 60 all we have to do now is add 120.
im doing this problem right now---
ok so a1=256 a2=64 a3=15 a4=4... find a9
the sequence divides by 1/4 every term
an=a1*r^n-1
an=(256)*(1/4)^n-1
replace n with 9
A9=(256)*(1/4)^9-1
A9=(256)*(1/4)^8
=(256)*(1/4)
A9=64^8
1/256 or a9= 0.00390625
A=138.53 in
Use the formula and replace the variables with the length, width, and height to get the answer