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3241004551 [841]
3 years ago
15

The function f is defined by f(x) = x^2-2x-24 if f (x + 3) = x^2+kx-21, what is the value of k?

Mathematics
2 answers:
vova2212 [387]3 years ago
3 0
Take this for example

zaharov [31]3 years ago
3 0

Step-by-step explanation:

my guess it's 4

(x+7) (x-3)

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Step-by-step explanation:

Use Pythagoras Theorem

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3 years ago
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3 years ago
Someone please help.
umka21 [38]

Let's go:


\frac{y}{3} = \frac{27}{y} \\\\ y^2 = 27.3 \\\ y^2 = 81 \\\ y = \sqrt{81} \\\ y = 9


I hope I helped you.


8 0
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Please help me answer this !! <br> Explain your answer !!! <br><br> I will give brainlst
scZoUnD [109]
<h3>Answer: B) 30</h3>

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