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2 years ago

Please help me with this, will give brainlist:)

Mathematics

2 answers:

Nat2105 [25]2 years ago

7 0

The answer is b hope this helped

Korvikt [17]2 years ago

6 0

Answer:

A. 12 ≥ w ≥ 33

Step-by-step explanation:

So as wide as 33, means that it could be less than or equal to 33. And as narrow as 12 means greater than or equal to 12, so put that together and we have our answer

if this is wrong let me know so I can fix it

hope this helps:)

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Step(1)

To find q(a) we just need to put a instead of x in q(x) function.

Let's do it...

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Multiply sides by -2 :

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$- 2q(a) = - 2 {a}^{2} - 6a - 8$

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Step (2)

To find q(a+1) we just need to put a+1 instead of x in q(x) function.

Let's do it...

$q(a + 1) = ({a + 1})^{2} + 3(a + 1) + 4 \\$

$q(a + 1) = {a}^{2} + 2a + 1 + 3a + 3 + 4 \\$

$q(a + 1) = {a}^{2} + 5a + 8$

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Step (3)

$q(a + 1) - 2q(a) =$

${a}^{2} + 5a + 8 - 2 {a}^{2} - 6a - 8 = \\$

$- {a}^{2} - a = - a(a + 1)$

And we're done.

Thanks for watching buddy good luck.

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Step-by-step explanation:

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