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Paladinen [302]
2 years ago
15

The difference HELPPP

Mathematics
1 answer:
Flauer [41]2 years ago
3 0

Answer:

5 and 2/10

Step-by-step explanation:

You have to have a common denominator

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Is the product of 3⅝ x ⅔ greater than or less than 3⅝? explain without multiplying
almond37 [142]
So the question is
number times 2/3 is greater than or less than the sasme number
so let's say x
x times 2/3 is greater than or less than x
since 2/3 is less than 1, 2/3 is a fraction,
 anything times a fraction will become smaller

therefor
3 and 5/8 times 2/3 is less than 3 and 5/8

the answer is LESS THAN

3 0
3 years ago
Read 2 more answers
Sammi wanted to create a dot plot based on this tally chart.
Phantasy [73]

Answer:

Option B:

Sammi made a mistake in Step 2 because he chose a title without knowing if the table represents the number of hours read per week.

Step-by-step explanation:

A dot plot type of a problem.

Sammi forgot to put the corresponding title for the dots such as whether those were the correspondents name or a universal label such as college students. This will make the graph have a mistake in some places. Sammi should include the label that corresponds or represents the dot.

8 0
3 years ago
Read 2 more answers
Sienna was dividing 12.76 by 0.001.
Solnce55 [7]
Sienna was dividing 12.76 by 0.001.Let's find out which one is correct based on the given choices. Let's perform division
=> 12.76 / 0.001 =  12 760

Thus, the correct answer is B. It will be less than 13,000. 

8 0
2 years ago
Suppose a research firm conducted a survey to determine the mean amount steady smokers spend on cigarettes during a week. A samp
shutvik [7]

Answer:

0.9910 = 99.10% probability that a sample of 170 steady smokers spend between $19 and $21

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 normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score 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 p-value, 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 normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

Mean of 20, standard deviation of 5:

This means that \mu = 20, \sigma = 5

Sample of 170:

This means that n = 170, s = \frac{5}{\sqrt{170}}

What is the probability that a sample of 170 steady smokers spend between $19 and $21?

This is the p-value of Z when X = 21 subtracted by the p-value of Z when X = 19.

X = 21

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

By the Central Limit Theorem

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

Z = \frac{21 - 20}{\frac{5}{\sqrt{170}}}

Z = 2.61

Z = 2.61 has a p-value of 0.9955

X = 19

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

Z = \frac{19 - 20}{\frac{5}{\sqrt{170}}}

Z = -2.61

Z = -2.61 has a p-value of 0.0045

0.9955 - 0.0045 = 0.9910

0.9910 = 99.10% probability that a sample of 170 steady smokers spend between $19 and $21

3 0
3 years ago
Insert space to express 725895213 in International number<br>system​
Nataly_w [17]

Answer:

725 895 213

Step-by-step explanation:

Seven hundred and twenty five million, eight hundred and ninety five thousand, two hundred and thirteen.

6 0
3 years ago
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