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10.05.2020 •
Mathematics
2015 > Chapter 7 Chapter Test 7
You can model an arch at your school using the equation y = -0.8 (x– 6) (x+ 2), where x and y are
measured in feet. The X-axis represents the ground. Find the width of the arch at ground level.
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Ответ:
11.6a + 880.2b - 477.2c
Step-by-step explanation:
Given:
length of the court = (5.8a+6.1b-3.6c) feet
width of the court = (434b-235c) feet
Since the court is said to be rectangular in shape :
The perimeter of a rectangle = 2(length + width)
Perimeter = 2(5.8a+6.1b-3.6c + 434b-235c)
Perimeter = 2(5.8a+6.1b+434b-3.6c-235c)
Perimeter = 2(5.8a + 440.1b - 238.6c)
Perimeter = 11.6a + 880.2b - 477.2c