Area of the composite figure = 390 ft²
Solution:
The composite figure is splitted into two rectangles.
The image is attached below.
Length of vertical rectangle = 20 ft
Width of vertical rectangle = 7 ft
Area of vertical rectangle = length × width
= 20 × 7
Area of vertical rectangle = 140 ft²
Length of top rectangle = 25 ft
Width of top rectangle = 30 - 20 = 10 ft
Area of top rectangle = length × width
= 25 × 10
Area of top rectangle = 250 ft²
Area of the composite figure = 140 ft² + 250 ft²
Area of the composite figure = 390 ft²
Answer:
it's b
Step-by-step explanation:
because it's the right answer
Answer:
(x+1)
Step-by-step explanation:
6x^2 -6 3-3x
-------------- ÷ ---------
8x^2 +8x 4x^2 +4x
Copy dot flip
6x^2 -6 4x^2 +4x
-------------- *---------
8x^2 +8x 3-3x
Factor
6(x^2-1) 4x(x+1)
-------------- * ---------
8x(x+1) 3(x-1)
6(x-1)(x+1) 4x(x+1)
-------------- * ---------
8x(x+1) 3(x-1)
Cancel like terms
2(x-1) (x+1)
-------------- * ---------
2 (x-1)
(x+1)
The given statement can be written as:
6+√-80
To solve √-80 re-write -80 as -1 * 80
Now √-80 =√-1 * 80
Now we can write it as:
6+ √-1 * √80
We know that √-1 = i
Thus it becomes:
6+ i√80
Now find the square root of 80
80 does not have a perfect square root
Its square root can be found as 80 = 4*4*5
Then,
6+i√4*4*5
Notice that 4 makes a pair.. So we will write it outside the square root
6+1*4√5
We will write it as:
6+4i√5
Thus the correct option is 6 plus 4 i times the square root of 5....
