Idk what end behavior for this?
2 answers:
Answer:
b
Step-by-step explanation:
The end behaviour is what happens when x gets larger and positive ( right hand end ) or larger and negative ( left hand end ) Tis is called the end behaviour as x → + ∞ and x → - ∞ respectively
For a polynomial the end behaviour is determined by the term of greatest degree.
For the given function
f(x) = - 3x³ + 2x + 4 ← degree 5 polynomial
The leading coefficient is positive
• Odd degree, positive leading coefficient, then
as x → - ∞, f(x) → - ∞
as x → + ∞, f(x) → + ∞
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• Odd degree, negative leading coefficient, then
as x → - ∞, f(x) → f(x) → + ∞
as x → + ∞, f(x) → - ∞
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Answer:
And we can find the following probability:
And the last probability can be founded using the normal standard distribution or excel.
Step-by-step explanation:
For this case we define the random variable X as the ages of vehicles. We know the following info for this variable:
represent the mean
represent the deviation in years
They select a sample size of n=40>30. And they want to find this probability:
Since the sample size is large enough we can use the central limit theorem and the distribution for the sample mean would be:
We can use the z score formula given by:
And if we find the z score for 4 we got:
And we can find the following probability:
And the last probability can be founded using the normal standard distribution or excel.