Answer:
(x-1)(x-1)
Step-by-step explanation:
hello :
(x+2) ²-6 (x+ 2) +9 =(x+2) ²-2×(<em>3</em>) (x+ 2) +<em>3²</em>
by identity : (a-b)² = a²-2ab+b²
let : a=x+2 and b= <em>3</em>
(x+2) ²-6 (x+ 2) +9 =(x+2) ²-2×(<em>3</em>) (x+ 2) +<em>3²=</em> ((<em>x+2)-3</em>)<em>²= (</em>x+2-3)² = (x-1)²=
(x-1)(x-1)
Answer:
3
Step-by-step explanation:
I think what u had chosed is correct so I didn't have any further explanation
Answer:
The height is 17 ft
Step-by-step explanation:
The surface area of a rectangular prism is
SA = 2(LW +WH + LH)
where L = length, W = width, and H = height
We know SA = 930, L = 12, and W = 9
930 = 2(12*9 +9H + 12H)
Divide each side by 2
930/2 = 2/2(12*9 +9H + 12H)
465 = (12*9 +9H + 12H)
Combine like terms
465 = 84+21H
Subtract 84 from each side
465-84 = 84-84+21H
357 = 21H
Divide by 21
357/21=21H/21
17 = H
The height is 17 ft
Solution:
<u>We know that:</u>
- Diameter = 22 meters
- Radius = Diameter/2
- Area of circle = πr²
<u>Finding the radius:</u>
- Radius = Diameter/2
- => Radius = 22/2
- => Radius = 11 meters
<u>Finding the area of the circle:</u>
- Area of circle = πr²
- => Area of circle = (3.14)(11²)
- => Area of circle = 3.14 x 121
- => Area of circle = 379.94 m²
