Answer:
That's correct.
Step-by-step explanation:
I'm pretty sure...
Answer:
---
Step-by-step explanation:
W=2x²+9x-7
L=x²-9
2(3x²+9x-16)
6x²+18x-32
The bold is the perimeter.
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hope it helps
Answer:
The perimeter of both figures is equal to 
Step-by-step explanation:
step 1
we know that
The perimeter of a square is equal to

where
b is the side length of the square
we have

substitute

step 2
we know that
The perimeter of a rectangle is equal to

we have


substitute

step 3
Equate both perimeters and solve for x




step 4
Find the perimeter of both
<em>square</em>

<em>rectangle</em>

Answer:
D. 
Step-by-step explanation:
As the two non-right angles on this triangle measure the same, their corresponding sides must be the same as well. This means that the other side length is 8.
Now that we have two of the side lengths, we can use the Pythagorean theorem to find side x
recall that the Pythagorean theorem states: 
In this case, a is 8, b is 8, and c is c
Now we can plug in the numbers and simplify.
