Sk8terkaylee
17.11.2019 •
Mathematics
Suppose a2 + 4a + 3 represents the area of a rectangle. what is the perimeter of that rectangle? a) 2a + 4 b) 4a + 8 c) 6a + 12 d) 8a + 16
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Ответ:
(a+3)(a+1) This is the length and the width of the rectangle.
Perimeter = length + length + width + width
P = (a+3) + (a+3) + (a+1) + (a+1)
P = a + a + a + a + 3 + 3 + 1 + 1
P = 4a + 6 + 2
P = 4a + 8
B) 4a + 8
Ответ:
The correct answer is third option