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3 years ago

9

PLEASE HELP PRECALCULUS SEE ATTACHMENT

1 answer:

koban [17]3 years ago

3 0

Answer:

1+6i

Step-by-step explanation:

Given:

f(x)=x^4 - 2x^3 + 38x^2 - 2 + 37

zero of f(x) = 1-6i

another zero of function = ?

Conjugate Zero theorem:

As per conjugate zero theorem, if a function f(x) has real coefficients and one of zero is a complex number then the conjugate of that complex number will also be a zero of that function i.e. complex zeroes will occur in complex conjugate pairs.

conjugate of 1-6i is 1+6i

hence another zero of f(x) will be 1+6i !

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Sergeu [11.5K]

Answer:

We need to conduct a hypothesis in order to check if the mean the actual mean length of movies released during 2010-2015 is more than the data base value (a;ternative hypothesis) ,so then the system of hypothesis would be:

Null hypothesis: $\mu \leq 117$

Alternative hypothesis: $\mu > 117$

Step-by-step explanation:

Data given and notation

$\bar X=118.44$ represent the sample mean

$s=8.82$ represent the sample standard deviation

$n=160$ sample size

$\mu_o =117$ represent the value that we want to test

$\alpha$ represent the significance level for the hypothesis test.

t would represent the statistic (variable of interest)

$p_v$ represent the p value for the test (variable of interest)

State the null and alternative hypotheses.

We need to conduct a hypothesis in order to check if the mean the actual mean length of movies released during 2010-2015 is more than the data base value (a;ternative hypothesis) ,so then the system of hypothesis would be:

Null hypothesis: $\mu \leq 117$

Alternative hypothesis: $\mu > 117$

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3 years ago

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Irina18 [472]

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8 0

3 years ago

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3 years ago

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Leviafan [203]

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Step-by-step explanation:

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3 years ago

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Step-by-step explanation:

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3 years ago