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Mademuasel [1]
3 years ago
13

Pls give me an explanation on how to do this so I can do the other problems on my own​

Mathematics
2 answers:
galina1969 [7]3 years ago
8 0

Answer:

Everything on the left of the 0 is negative and everything to the right of 0 is positive

Step-by-step explanation:

zaharov [31]3 years ago
8 0

Answer:

-2

3

Step-by-step explanation:

This is because on the left it's negatif like -1,-2,-3

while in the right side it's positif which is 0,1,2,3,4,5

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Solve for v.<br> .<br> Simplify your answer as much as possible.
goldenfox [79]

Answer:

v = 9

Step-by-step explanation:

Use the method of cross- multiplying

\frac{a}{b} = \frac{c}{d} ⇒ ad = bc

8v = 12 × 6

8v = 72 ( divide both sides by 8 )

v = 9


7 0
3 years ago
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Help it’s my last question please!
MatroZZZ [7]

Answer:

What is it??

Step-by-step explanation:

wat's the question??

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Show how to find the following product using a diagram<br>1/4 × 2/3​
podryga [215]
Not to sure about this one. Maybe try google.
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3 years ago
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AYOOOOOOOOOOO I NEED HELP WITH THIS QUESTION, WIL GIVE BRAINLIST
ser-zykov [4K]

Answer:

C. 2/9

Step-by-step explanation:

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Yoonie is a personnel manager in a large corporation. Each month she must review 16 of the employees. From past experience, she
Lyrx [107]

Answer:

(a) The probability that the mean of a month’s reviews will take Yoonie from 3.5 to 4.25 hours is 0.7492.

(b) The values representing the 95th percentile for the mean time to complete one month's reviews is 4.50 hours.

Step-by-step explanation:

The random variable <em>X</em> is defined as the time it takes her to complete one review.

The random variable <em>X</em> follows a Normal distribution with parameters <em>μ</em> = 4 hours and <em>σ</em> = 1.2 hours.

A random sample of <em>n</em> = 16 reviews are selected as a set.

(a)

Compute the probability that the mean of a month’s reviews will take Yoonie from 3.5 to 4.25 hours as follows:

P(3.5

                              =P(-1.67

Thus, the probability that the mean of a month’s reviews will take Yoonie from 3.5 to 4.25 hours is 0.7492.

(b)

The <em>p</em>th percentile is a data value such that at least <em>p</em>% of the data set is less than or equal to this data value and at least (100 - <em>p</em>)% of the data set are more than or equal to this data value.

So, the 95th percentile for the mean time to complete one month's reviews can be represented as:

P(\bar X

This implies that:

P(\bar X

The value of <em>z</em> is:

<em>z</em> = 1.645

Compute the value of <em>a</em> as follows:

z=\frac{a-4}{1.2/\sqrt{16}}\\1.645=\frac{a-4}{0.3}\\z=4+(0.3\times 1.645)\\z=4.4935\\z\approx4.50

Thus, the values representing the 95th percentile for the mean time to complete one month's reviews is 4.50 hours.

5 0
3 years ago
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