Answer: B
Step-by-step explanation:
Step-by-step explanation:
width × length = Area
QRST
width × 8 = 40 in²
width = 5 in
QRST ~ WXYZ
x = 5/8 × 40
= 25 in
Area of WXYZ = width × length
= 25 × 40 = 1000 in²
Multiply equation II by 2 and then add up the equations.
Sqrt 80n^2 = sqrt 40x2xnxn = sqrt 20x2x2xnxn = sqrt 10x2x2x2xnxn = sqrt 5x2x2x2x2xnxn
Pull out numbers and letters in groups of 2
2x sqrt 5x2x2xnxn
2x2x sqrt 5xnxn
2x2xnx sqrt 5
Multiply the numbers and letters on the outside of the radical
4n x sqrt 5 is the final answer.