3 years ago

Hey

Mathematics

1 answer:

kobusy [5.1K]3 years ago

3 0

Hi :)

Dont spazm to much :D

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Simplify: (3^5)^2 / 3^-2 A) 3^10 B) 3^9 C) 3^12 D) 3^8

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So the correct answer is C .

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2 years ago

Which number is further from 0 on a number line: −8 or 6?

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Answer:

It would be -8

Step-by-step explanation:

-8 is 8 points away from 0 on the number line, while 6 is only 6 points away

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3 years ago

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The area of a rectangle is 44 square units. Its length measures 11 units. Find the

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Answer:

$\sqrt{137}$

Step-by-step explanation:

11.7

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2 years ago

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

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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.

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3 years ago

Principal Philippi use a random sample of 20 student records to determine how far in miles students live from the school the res

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Now you divide 83 by the number of terms in the sample set, which is 20.

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For rounding to the nearest tenth, look at the hundredths space, which is 5. Since it is 5 or higher, round the tenths up one.

final answer= 4.2

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2 years ago

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