Answer:
L = 15, W = 8
Step-by-step explanation:
Perimeter = 2(L + W)
P = 40
L = 2W - 1
40 = 2((2W-1) + W)
40 = 4W - 2 + 2W
40 = 6W - 2
42 = 6W
W = 8
Since L = 2W - 1
L = 2(8) - 1
L = 15
Okay! thank you so much for the awarness!
C
one way to solve is to use the method of completing the square
subtract 3 from both sides
x² - 2x = - 3
add ( half the coefficient of the x-term )² to both sides
x² + 2(- 1 )x + 1 = - 3 + 1
(x - 1)² = - 2
take the square root of both sides
x - 1 = ± √(- 2) = ± i√2 ( add 1 to both sides )
x = 1 ± i√2 → C
The answer is 2.625$ rounded up to 2.63$
The answer is -1 because it is subtracting by -2
