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RUDIKE [14]
3 years ago
10

Witch of the following are the factors of 4b^2 - 16?

Mathematics
1 answer:
luda_lava [24]3 years ago
4 0
<span>4b^2 - 16 = (2b + 4)(2b - 4)

</span>difference of squares<span> 
a^</span>2<span> – b^</span>2<span> = (a + b)(a – b) </span><span>

</span>
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2 years ago
Filipo is building a rectangular sandbox . The length of the sandbox is 1 foot longer than twice the width of the sandbox .the p
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Answer:

Part A : D.) 2w + 2(2w+ 1) = 29

Part B : Length of the sandbox is 10 feet.

Step-by-step explanation:

Given,

Perimeter = 29 ft

We need to find the equation for the perimeter and also the length of the sandbox.

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Let the width of the sandbox be 'w'.

Now as per question said;

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So we can say that;

Length = 2w+1

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framing in equation form, we get;

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Dividing both side by 6 we get;

\frac{6w}{6}=\frac{27}{6}\\\\w=4.5\ ft

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