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3 years ago

What are potential roots of p(x) = x4 + 22x2 – 16x – 12

2 answers:

8 0

Simplify 22\times 222×2 to 4444
{x}^{4}+44-16x-12x4+44−16x−12Collect like terms
{x}^{4}+(44-12)-16xx4+(44−12)−16x Simplify{x}^{4}+32-16xx4+32−16x

rjkz [21]3 years ago

4 0

Answer:

±1, ±2, ±3, ±4, ±6 and ±12

Step-by-step explanation:

The potential roots are obtained as following:

potential roots = factors of the constant term / factors of leading coefficient

The constant term is -12, its factors are ±1, ±2, ±3, ±4, ±6 and ±12

The leading coefficient is 1, its factors are ±1

Therefore the potential roots are ±1, ±2, ±3, ±4, ±6 and ±12

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3 years ago

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hodyreva [135]

Answer:

The sample size n = 4225

Step-by-step explanation:

We will use maximum error formula = $\frac{z_{a} S.D}{\sqrt{n} }$

but we will find sample size "n"

$\sqrt{n} = \frac{z_{a} S.D}{maximum error}$

Squaring on both sides , we get

$n = (\frac{z_{a} S.D}{maximum error})^2$

Given 99% confidence interval (z value) = 2.56

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on simplification , we get n = 4225

Conclusion:

The sample size of two samples is n = 4225

verification:-

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4 0

3 years ago

What is the product of 523 and 48

Aleksandr [31]

Answer:

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Step-by-step explanation:

PRODUCT=MULTIPLICATION, SO

423 X 48= 25104

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2 years ago

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Answer:

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