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3 years ago

What are the possible rational zeros of f(x) = 3x4 + x3 − 13x2 − 2x + 9?

1 answer:

7 0

Rational roots theorem states that any rational root will be a factor of the constant over a factor of the leading coefficient.
The given equation is: f(x) = 3x^4 + x^3 - 13x^2 - 2x + 9. In this case, it is a factor of 9 over a factor of 3.

Factors of 9: ±1, ±3, ±9
Factors of 3: ±1, ±3

So possible rational roots are: ±1, ±3, ±9, ±1/3

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3 years ago

Dave walked to his friends house at a rate of 4 mph and returned biking at a rate of 10 mph. If it took him 18 minutes longer to

vesna_86 [32]

Answer:

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Step-by-step explanation:

1. Let's check all the information given to answer the question correctly:

Speed of Dave walking to his friend's house = 4 mph

Speed of Dave biking from his friend's house = 10 mph

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3 years ago

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Step-by-step explanation:

Given that :

Five thousand tickets are sold at $1 each for a charity raffle

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The expected value of the raffle if 1 ticket is being bought is as follows:

$E(x) = \sum x * P(x)$

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