Answer:
Step-by-step explanation:
Take out 4 from each term on the left.
4(B^2 - B) = -1 Divide both sides by 4
4(B^2 - B)/4 = - 1/4
(B^2 - B) = -1/4 Add 1/4 to both sides
B^2 - B + 1/4 = - 1/4+1/4
B^2 - B + 1/4 = 0
(b - 1/2)(b - 1/2)
This has 2 equal roots of (b - 1/2)(b - 1/2) or b = 1/2 , b = 1/2.
When that happens, the quadratic just touches the x axis (in this case at 1/2)
I've provided a graph to show you how this happens. None of your choices are what I'm getting. The answer is 1/2 no matter how it is factored.
Answer:
Minus 9.09090909% decrease
Answer:
hey
Step-by-step explanation:
For a bedroom measuring 6 3/4" by 4 1/2" on the drawing, the dimensions of the bedroom are 18 ft. by 27 ft.
Option (C) is correct.
In mathematics, a dimension is the length or width of an area, region, or space in one direction. It is just the measurement of an object's length, width, and height.
According to the question,
The scale of an architectural sketch is 1/4" = 1'. If, according to the drawing, a bedroom has the dimensions 6 3/4 by 4 1/2 inches.
Then, the dimensions of the bedroom in feets are calculated as follows:
As 1/4" = 1'
6 3/4" = 27'= 27 ft.
Similarly,
4 1/2" = 18' =18 ft.
Thus, the dimensions of the bedroom are: 18 ft. by 27 ft.
Learn more about dimensions here:
brainly.com/question/19819849
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Answer:
Step-by-step explanation:
90 by 20%
10%=9
20%=18
90-18=62
Hope u understand
