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MariettaO [177]
3 years ago
12

Write 7.264 51 correct to 3 decimal places

Mathematics
2 answers:
melamori03 [73]3 years ago
8 0

Answer:

7.265

Step-by-step explanation:

pav-90 [236]3 years ago
7 0

ANSWER

7.26451 correct  to 3 decimal places is 7.265


EXPLANATION

We start counting from the first number after the decimal point.

So starting from 2, we count 3 decimal places to the right and land on 4.


Next, we check to see if the number after 4, is greater or equal 5, then we round up, else we round down.


Since that number is 5, it is greater than or equal to 5.


Therefore we round up to obtain 7.265


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Answer:

(8,-1)

Step-by-step explanation:

(3,-4) +(5,3)

(8,-1)

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2 years ago
Helmet Nemzek recieved a COLA of 2.3% on his weekly gross wages of $760 how much will helmet earn per week after the pay increas
bazaltina [42]

Answer:

Step-by-step explanation:

$760(1.023) = $777.48

5 0
3 years ago
la maman de ludovic fête ses 43ans. Ludovic lui dis : 《maman , tu vivras jusqu'à 100ans !》dans combien d'années aura-t-elle 100a
natima [27]

Answer:

57

Step-by-step explanation:

100 - 43 = 57

3 0
2 years ago
A leading magazine (like Barron's) reported at one time that the average number of weeks an individual is unemployed is 33.9 wee
MArishka [77]

Answer:

P(35.3 < M < 35.4) = 0.0040.

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal probability distribution

Problems of normally distributed samples are solved using the z-score formula.

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.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a random variable X, with mean \mu and standard deviation \sigma, the sample means with size n of at least 30 can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}

In this problem, we have that:

\mu = 33.9, \sigma = 6.7, n = 119, s = \frac{6.7}{\sqrt{119}} = 0.6142

Find the probability that a single randomly selected value is between 35.3 and 35.4

This is the pvalue of Z when X = 35.4 subtracted by the pvalue of Z when X = 35.3. So

X = 35.4

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

By the Central Limit Theorem

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

Z = \frac{35.4 - 33.9}{0.6142}

Z = 2.44

Z = 2.44 has a pvalue of 0.9927

X = 35.3

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

Z = \frac{35.3 - 33.9}{0.6142}

Z = 2.28

Z = 2.28 has a pvalue of 0.9887

0.9927 - 0.9887 = 0.0040

So the answer is:

P(35.3 < M < 35.4) = 0.0040.

4 0
3 years ago
Adam wants to compare the fractions 2 over 5, 1 over 6, and 1 over 3. He wants to order them from least to greatest and rewrite
mafiozo [28]

Answer:

Least to greatest should be 1 over 6, 1 over 3, and then 2 over 5. least to greatest with the same denominator should be 5 over 30, 10 over 30, and 12 over 30

Step-by-step explanation:

First step is to find the common denominator, which is 30. Then you want to figure out how you got to 30 and multiply that by nominator. after you have that all complete, then just sort from least to greatest. To listed from least to greatest is you take the smallest number, for example which would be 5 over 30 and then sorts continuously from the greater number as well, which would be 12 over 30

8 0
3 years ago
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