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3 years ago

I'm in 6th grade help me pls PLUS ILL MARK U AS BRAINIEST

Mathematics

2 answers:

Inga [223]3 years ago

7 0

I believe the answer is C. 162

Nadya [2.5K]3 years ago

4 0

Answer: c

Step-by-step explanation:

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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

Find the missing angle <br> 50 points

Gemiola [76]

Answer:

i believe it is 73 degrees

Step-by-step explanation:

4 0

3 years ago

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INTERPRETING EXPRESSIONS: <br> ln the expression 9x - 9, the variable is ___

podryga [215]

The variable is X .........

3 0

3 years ago

Wats 10 to the 2nd power divied by 5 to the 2nd power

Ilya [14]

Answer:

Step-by-step explanation:

10^2/5^2

Do the exponents first

10 to the 2nd power is 100

5 to the 2nd power is 25

100/25

100 divided by 25 is 4

So the answer is 4

Hope this helps!

6 0

3 years ago

What is the common difference in this sequence?{48, 32, 16, 0, ...

julia-pushkina [17]

The common difference in this sequence is -16 because each number decreases by 16 from the last

8 0

3 years ago

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