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madreJ [45]
3 years ago
9

Please help!!!! solve for x showing EACH STEP please!!

Mathematics
2 answers:
brilliants [131]3 years ago
7 0

cant see the pic

please type out the question

so that i can help u

vovikov84 [41]3 years ago
6 0

Answer:

x = zk + z +  \mu

Step-by-step explanation:

z =  \frac{x -  \mu}{k + 1}  \\  \\ z(k + 1) = x -  \mu \\  \\ z(k + 1) +  \mu =x  \\  \\ \red{ \bold{ x = zk + z +  \mu}}

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snow_lady [41]
i did that one but don't remember
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3 years ago
a rectangular mural measures 3.5ft by 5.5ft. Rosalie creates a new mural that is 1.5 ft longer. What is the perimeter of Rosalie
saveliy_v [14]

Answer:

P = length + width x 2
P = 3.5ft + 5.5ft x 2
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Therefore the perimeter of Rosalie's new mural is 19.5ft

6 0
2 years ago
What is z? -0.25z = -1.25
lora16 [44]
It is (positive) five. divide -1.25 by -0.25.
3 0
3 years ago
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A radio station claims that the amount of advertising per hour of broadcast time has an average of 13 minutes and a standard dev
zimovet [89]

Answer:

Z = 3.33

Step-by-step explanation:

Z-score:

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question:

\mu = 13, \sigma = 1.2

You listen to the radio station for 1​ hour, at a randomly selected​ time, and carefully observe that the amount of advertising time is equal to 17 minutes. Calculate the​ z-score for this amount of advertising time.

We have to find Z when X = 17. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{17 - 13}{1.2}

Z = 3.33

5 0
2 years ago
Please Answer this Correctly For Brainiest!
Reika [66]

Answer:

78%

Step-by-step explanation:

There are 18 games in total. 14 of them have 77 - 92 points scored in them. Divide 14 by 18 to get approximately .7778, then multiply by 100 to get approximately 77.7778, which can then be rounded to 78%.

6 0
3 years ago
Read 2 more answers
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