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Andru [333]
3 years ago
10

a rectangular trampoline has a perimeter of 52 ft if the width is 2 ft less than the length what are the dimensions of the tramp

oline
Mathematics
1 answer:
andriy [413]3 years ago
8 0
Hello!

You can make two expressions based on what you know

2l + 2w = 52

w = l - 2

You can put w in the first equation

2l + 2(l - 2) = 52

Distribute the 2

2l + 2l - 4 = 52

Combine like terms

4l - 4 = 52

Add 4 to both sides

4l = 56

Divide both sides by 4

l = 14

We can put this into the second equation to get the width

w = 14 - 2

w = 12

The length is 14 and the width is 12

Hope this helps!
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2. Even if it equals to zero, square root of a negative number cannot be solved.
(I will show you what I mean)

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3x² - 5x + 7
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for example,
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using 3x² - 5x + 7 to solve,

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