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โˆ™ 2012-08-20 13:09:07
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Algebra

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A polynomial of degree zero is a constant term

The grouping method of factoring can still be used when only some of the terms share a common factor A True B False

The sum or difference of p and q is the of the x-term in the trinomial

A number a power of a variable or a product of the two is a monomial while a polynomial is the of monomials

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Q: How many 2 digit numbers contain the digit 4?
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How many a 2 -digit numbers contain the digit 4?

-2


How many three digit numbers contain the digit 2?

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How many 2-digit numbers contain digit 1?

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How many 2-digit numbers contain the digit 7 only once?

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How many 3 digit numbers contain the digit 2 at least once?

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How many 2-digit numbers contain the digit?

It would help to know which digit. 0 appears in 9 numbers and each of the others in 18 numbers.


How many 3-digit positive integers are odd and do not contain the digit 5?

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How many whole numbers are in a set between 100 and 400 that contain the digit 2?

138 of them.


How many whole numbers between 100 and 400 contain the digit 2 in their standard notation?

The answer is 138


How many whole number between 100 and600 contain the digit 2 in their standard notation?

There are 175 such numbers.


How many three digit number contain the digit 2?

There are several ways to answer this. I think this is the easiest: Count the number of three-digit numbers: The first digit can be 1-9; the second and third digits can be 0-9. So, there are 9 choices for the first digit and 10 choices for the second and third digits. This gives you 9 x 10 x 10 = 900 three-digit numbers. Right? Then count the number of three-digit numbers that do NOT contain the digit 2. This is done similarly! Try it! Now, if you think about it, the difference between these two quantities IS the number of three-digit numbers that DO contain a 2, which is what you wanted.


How many 2 digit descending numbers are there?

There are 45 such numbers.

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