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3 years ago

8

VALUE RATIONAL OR IRRATIONAL? 1. 55 2. V126 5. 0.7

1 answer:

neonofarm [45]3 years ago

4 0

Answer:

1 rational

2 . irrational

3 irrational

4 rational

5 rational

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Answer:

$k=-16,k=-8,k=8,k=16$

Step-by-step explanation:

We are given quadratic equations as

$x^2+kx+15$

and it can be factored as

$=(x+a)(x+b)$

now, we can multiply factor term

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$15=(-1\times -15),(1\times 15)$

$15=(-3\times -5),(3\times 5)$

so, we can find k

At $(-1\times -15)$ :

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$k=-16$

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we can plug values

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At $(-3\times -5)$ :

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$k=8$

So, values of k are

$k=-16,k=-8,k=8,k=16$

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