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Is it ever possible for the domain and range to have different numbers of entries what happens when this is the case?
Yes. Typical example: y = x2. To avoid comparing infinite sets, restrict the function to integers between -3 and +3.
Domain = -3, -2 , ... , 2 , 3. So |Domain| = 7
Range = 0, 1, 4, 9 so |Range| = 4
You have a function that is many-to-one. One consequence is that, without redefining its domain, the function cannot have an inverse.
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Is it ever possible for the domain and range in a function to have different numbers of entries?
Yes.
Is it ever possible for the domain and range in a function to have different numbers of entries for example 3 domain entries to 5 range entries or 2 range entries to 7 domain entries?
Yes. The range can have fewer number of entries.As an extreme case, consider f(x) = 3, where x is a Real number.The domain is all Real numbers - infinitely many of them, while the range is one value: 3.A function can contain one-to-one or many-to-one relationships but one-to-many relationships are not permitted. As a result, the cardinality of the range cannot be bigger than the cardinality of the domain.
How many possible different combinations of numbers r possible in just the last 4 numbers?
10,000
How do you find average numbers in maths?
Add up all the numbers and divide by the amount of entries you added together.
How many number combinations are possible with three numbers?
If the numbers can be repeated and the numbers are 0-9 then there are 1000 different combinations.
Is it ever possible for the domain and range in a function to have different numbers of entries?
Yes.
Is it ever possible for the domain and range in a function to have different numbers of entries for example 3 domain entries to 5 range entries or 2 range entries to 7 domain entries?
Yes. The range can have fewer number of entries.As an extreme case, consider f(x) = 3, where x is a Real number.The domain is all Real numbers - infinitely many of them, while the range is one value: 3.A function can contain one-to-one or many-to-one relationships but one-to-many relationships are not permitted. As a result, the cardinality of the range cannot be bigger than the cardinality of the domain.
What is the smallest possible sum for 4 different prime numbers when the answer is a prime number?
The smallest four prime numbers are 2, 3, 5, 7, and their sum happens to be a prime.
How many possible different combinations of numbers r possible in just the last 4 numbers?
10,000
What are two types of value entries?
numbers and text
What are the two types of value entries?
numbers and text
How do find the median if there are an even number of entries?
If you have to find a median in a set of numbers in which there are an even number of entries, you must find the average of the two numbers the come in the middle.
What function do you use to determine how many entries are in a particular column?
The Count function can be used if you are looking for just numbers and the Counta function if you are looking for numbers and text entries.
How Is it possible for the atoms of different elements to have the same mass numbers?
It is possible only because of different number of neutrons.
Which number is equal to 80 600 1?
It is not possible to answer the question since there are no operators between the numbers. 80 + 600 is very different from 80 * 600!It is not possible to answer the question since there are no operators between the numbers. 80 + 600 is very different from 80 * 600!It is not possible to answer the question since there are no operators between the numbers. 80 + 600 is very different from 80 * 600!It is not possible to answer the question since there are no operators between the numbers. 80 + 600 is very different from 80 * 600!
What happens if the mean has two pairs of different numbers?
use the middle number
What are the differences between positive and negative databases?
There are two different contexts is which these terms are used; the first is regarding "reputation", a positive database contains entries correponding to entities with good, or at least not bad, reputation. A negative database has the entries corresponding to entities with decidedly bad reputation. In the second context, a positive database is what you normally thing a database to be, say entries containing names and credit-card numbers; a negative database contains all of the possible entries not included in the positive database, i.e., all possible name-creditcard combination except the ones in the positive DB. In fact a negative database has all possible character combinations (or for that matter bit combinations) of a given length that are not present in the negative db. This scheme has a potential for data security and personal privacy.
