So,
When you write a number in expanded form, you separate each non-zero digit and write it according to its place value.
430,290,100
400,000,000
30,000,000
We don't put anything for the millions place because there are none.
200,000
90,000
100
Then we join each of them with a plus sign.
400,000,000 + 30,000,000 + 200,000 + 90,000 + 100
The system of numeration which is followed by most of the countries in the world and used mainly in scientific work is known as international system of numeration.
Answer with explanation:
By definition of mean life we know that on an average the respective phones will last for 2.5 years or 3 years respectively but for each model there will be phones which last less than the mean life and phones which last for greater than the mean life.A lower standard deviation means that all the phone batteries have life close to mean life while as a larger standard deviation means that the lives of the batteries are spread out. The Percentage of such phone which last for time greater or lesser than mean depends on the standard deviation of the data.
Since we will get a phone at random from the samples we need to maximize our chances of getting a better phone which can be obtained only if we know the standard deviation of the data.
Part b)
Yes it changes our opinion of the given batteries since for the battery with life of 2.5 years has a lesser deviation thus we infer if we choose any battery from this sample at random we have larger chances that the battery has the specified or greater life span while as the chances in the second type of battery are lower.
If you can please post a trinomial, I would be happy to assist you.
The ratio of rise to run between points B and C is the same as the slope of line AB
<h3>What is an
equation?</h3>
An equation is an expression that shows the relationship between two or more numbers and variables.
Slope of a line = ratio of rise to run = rise / run
Hence:
The ratio of rise to run between points B and C is the same as the slope of line AB
Find out more on equation at: brainly.com/question/2972832
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