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3 years ago

Please take a look at the picture. Please write your answer with an explanation.

Mathematics

2 answers:

Annette [7]3 years ago

7 0

Answer:

790

Step-by-step explanation:

Multiply, Determine the sign and evaluate, Add up everything, multiply everything that's left, by doing everything correctly you should get 790

nikitadnepr [17]3 years ago

6 0

Answer:

790

Step-by-step explanation:

following PEMDAS, i solved what was inside the parentheses (P) first, then used the exponents (E) to multiply (M) what was separated by the signs, there was no division (D), so I moved on to adding (A) what I could, then subtracted (S) the remaining numbers to solve and get 790 as my final answer

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Bad White [126]

Answer:

$\frac{2}{9}$ or 2/9

Step-by-step explanation:

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fenix001 [56]

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Answer:

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Step-by-step explanation:

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4 years ago

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3 years ago

A score that is three standard deviations above the mean would have a z score of

tia_tia [17]

The value of z-score for a score that is three standard deviations above the mean is 3.

In this question,

A z-score measures exactly how many standard deviations a data point is above or below the mean. It allows us to calculate the probability of a score occurring within our normal distribution and enables us to compare two scores that are from different normal distributions.

Let x be the score

let μ be the mean and

let σ be the standard deviations

Now, x = μ + 3σ

The formula of z-score is

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