4 years ago

A species might become extinct when a dinosaur event, such as a meteorite impact, occurs.

Mathematics

1 answer:

nevsk [136]4 years ago

4 0

True ....................................................................................

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What is the value of x? <br> A) 3 <br> B) 6 <br> C) 8 <br> D) 1

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Find derivative of h(x)

$\\ \sf\longmapsto \dfrac{d}{dx}(3x^2-4)$

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Now

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$\\ \sf\longmapsto h(-3)$

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5y - 3 = 3y + 27
2y = 30
y = 15

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A mechanic sells a brand of automobile tire that has a life expectancy that is normally distributed, with a mean life of 27 com

Harrizon [31]

Answer:

Tires that wear out by approximately 24307.8 miles will be replaces free of charge.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 27,000 miles

Standard Deviation, σ = 2100 miles

We are given that the distribution of life expectancy is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

We have to find the value of x such that the probability is 0.10

$P( X < x) = P( z < \displaystyle\frac{x - 27000}{2100})=0.10$

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$\displaystyle\frac{x - 27000}{2100} = -1.282\\\\x = 24307.8$

Tires that wear out by approximately 24307.8 miles will be replaces free of charge.

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Answer:

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