3 years ago

Please help please please help

Mathematics

1 answer:

arsen [322]3 years ago

4 0

46.19 should be the answer

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A company interested in lumbering rights for a certain tract of slash pine trees is told that the mean diameter of these trees i

brilliants [131]

Answer:

97.6% of the trees will have diameters between 7.6 and 18.6 inches.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 12 inches

Standard Deviation, σ = 2.2 inches

We are given that the distribution of diameter of tree is a mound shaped distribution that is a normal distribution.

Formula:

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

P(diameters between 7.6 and 18.6 inches)

$P(7.6 \leq x \leq 18.6) = P(\displaystyle\frac{7.6 - 12}{2.2} \leq z \leq \displaystyle\frac{18.6-12}{2.2}) = P(-2 \leq z \leq 3)\\\\= P(z \leq 3) - P(z < -2)\\= 0.999 - 0.023 = 0.976= 97.6\%$

$P(7.6 \leq x \leq 18.6) = 97.6\%$

97.6% of the trees will have diameters between 7.6 and 18.6 inches.

8 0

3 years ago

AC =<br> Round your answer to the nearest hundredth.

garri49 [273]

Answer:

the answer is 8.24 using tan =opp/adj

5 0

3 years ago

⎪6 − 4⎪ − ⎪3 − 8⎪ = ?<br> Please help!!!!

andriy [413]

Answer:

-3

Step-by-step explanation:

Numbers that come out of the absolute values are always positive.

|6 - 4| -|3 - 8| =

| 2| - | -5| =

2 - 5 =

-3

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3 years ago

Write in mathematical symbols<br><br> 20 less than three times the width 3

lesantik [10]

3w-20 is the answer for it

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What is 25+100=125-500

dem82 [27]

This answer would be -375

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3 years ago

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