Answer: Completing the square, means
adding ( half the coefficient of the x- term )² to both sides, that is
( )² is added to both sides
Step-by-step explanation:
ur pretty btw
(1/2)^-3=1/(1/2)^3=2^3 (by x-n=1/x^n)
(3/5x)^-1=5x/3
Add 2x to both sides,
3x+9=18
Subtract 9 from both sides. 3x=9
Divide both sides by 3.
x=3
Answer:
Step-by-step explanation:
Length=2*Width
L=2*W
Perimeter=28.8 cm
Perimeter of a rectangle= 2(Length+Width)
<span>The was a 30% decrease in area.
You started with 40 sq ft and ended up with 28 sq ft. So you lost 40 - 28 = 12 sq ft.
Now you need to figure out what percentage of 40 is 12. For that you just simply divide
12 / 40 = 0.30
And to convert 0.30 from a decimal to a percentage, just multiply by 100.
0.30 * 100 = 30%</span>
