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3 years ago

Which expressions are completely factored? Select each correct answer. 32y10−24=8(4y10−3)

Mathematics

1 answer:

I am Lyosha [343]3 years ago

4 0

The Answers Fam Are............ 32y10−24=8(4y10−3)...........,16y5+12y3=4y3(4y2+3)

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Relationships between means, standard deviations, X values,and z-scores

Vlada [557]

Answer:

a) The average salary of firefighters in Portugal is $583.

b) The standard deviation of the salary of firefighters in Portugal is $319.8

Step-by-step explanation:

We are given the following in the question:

a) Standard Deviation, σ = $145.80

We are given that the distribution of salary of professor is a bell shaped distribution that is a normal distribution.

Formula:

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

A salary of $510.10 has a z-score of -0.50.

Putting values, we get,

$-0.50 = \displaystyle\frac{510.10-\mu}{145.80}\\\\\mu = 0.50(145.80) + 510.10\\\Rightarrow \mu = 583$

Thus, the average salary of firefighters in Portugal is $583.

b) Mean, μ = $2,132

We are given that the distribution of salary of computer programmers is a bell shaped distribution that is a normal distribution.

Formula:

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

The salary of $2,291.90 has a z-score of +0.50

Putting values, we get,

$0.50 = \displaystyle\frac{2291.90-2132}{\sigma}\\\\\sigma= \frac{2291.90-2132}{0.50}\\\\\sigma = 319.8$

Thus, the standard deviation of the salary of firefighters in Portugal is $319.8

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4 years ago

Ramon is having some friends over after a baseball game. Ramon's job is to make a vegetable dip. The ingredient for the recipe a

koban [17]

Answer:

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Step-by-step explanation:

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3 years ago

PLZ HELP FAST!??!!!!

masha68 [24]

Answer:

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Step-by-step explanation:

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4 years ago

Simplify completely quantity 12 x plus 36 over quantity x squared minus 4 x minus 21 and find the restrictions on the variable..

Softa [21]

To simplify the expression stated, it is better to write it in the numerical form. The statement is:

quantity 12 x plus 36 over quantity x squared minus 4 x minus 21

The numerical form is:

12x+36 / (x²-4x-21)

Simplifying,
12x+36 / (x²-4x-21)
12 (x+3) / (x+3)(x-7)

We can cancel the x+3 term, leaving only:
12/(x-7)

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3 years ago

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The two-way frequency table below shows data on twins in a patient's family history and pregnancies with twins

shutvik [7]

Answer:

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Step-by-step explanation:

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3 years ago

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