knj281
06.04.2021 •
Mathematics
What are the solutions of x2 = 8 – 5x?
StartFraction 5 minus StartRoot 57 EndRoot Over 2 EndFraction comma StartFraction 5 + StartRoot 57 EndRoot Over 2 EndFraction
StartFraction negative 5 minus StartRoot 57 EndRoot Over 2 EndFraction comma StartFraction negative 5 + StartRoot 57 EndRoot Over 2 EndFraction
StartFraction negative 47 Over 4 EndFraction comma StartFraction 67 Over 4 EndFraction
StartFraction negative 67 Over 4 EndFraction comma StartFraction 47 Over 4 EndFraction
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Ответ:
For x greater than 36 inches, the perimeter of the picture frame is greater than 156 inches.
Step-by-step explanation:
If the width of the picture frame is x inches,
The length of the same is (x + 6) inches
Therefore, the perimeter of the picture frame is 2[(x + 6) + x] =4x + 12 inches
Therefore, for the perimeter to be greater than 156 inches,
4x + 12 > 156
=> 4x > (156 - 12)
=> 4x > 144
=> x > 36