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Why when you multiply an odd number by a even does it always equal a even?
When you multiply an odd number by an even number, you are essentially adding an even number of odd numbers together. Since adding an even number of odd numbers will always result in an even number, the product will be even.
Why teaching trigonometry?
to give the basics for astronomy, distance calculation etc
When you subtract one integer from another integer will your answer be greater than or less than the integer you started with explain your reasoning and give an example?
It can be greater than, equal or less than the original integer. There are three possible values for the second integer: It is positive, in which case the result will be less than the original integer, eg 5 - 2 = 3 and 3 < 5;It is zero, in which case the result will be the same as the original integer, eg 5 - 0 = 5 and 5 = 5;It is negative, in which case the result will be greater than the original integer, eg 5 - -2 = 7 and 7 > 5.
Can you give me a definition of reciprocal?
Yes I can.The reciprocal of anything is '1' divided by it.That's the definition.Here's the result: When you multiply anything by its reciprocal, the answer is always '1'.
Why if you add two prime numbers together they don't always give an even number?
Because 2 is a prime number and 2 added to any other prime number will give an odd result.
