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What is the difference between a equals equals 0 and a equals 0?
One equals is used in an equation which is true, such as 5 + 3 = 8 Equals equals is used in computer programming as a question as to whether 2 things are equal. Like If x == 4 perform this operation ... If you are referring to 'C' language programming: A single equal sign is an assignment, a double equal sign is a comparison. a = 7; /* An assignment. You are assigning the value of 7 to the variable called 'a' */ if (a == 7) /* A comparison. You are checking if the variable 'a' has the value of 7 */
What is a mathematical phrase that has numbers and operation signs but no equals sign?
if there are no comparison signs (equals or inequalities, ie =, >, < etc) then it is an expression, eg "x + 5" If there is a comparison sign which is not equals, then it is an inequality, eg "x > 5"
How can we predict the sign of the product or quotient of sign numbers?
positive times positive equals positive negative times negative equals positive positive times negative equals negative Substitute "divided by" for "times" in the previous sentences and they are still true.
A fraction times a negative fraction equals?
A fraction that has a different sign to the first fraction.
How do you type in a less than equal to sign?
I've seen less than equal to signs typed on a computer shown as <= but make sure the reader knows you are doing math. If you are writing it with pencil and paper, then use <_ (with the underscore underneath the less than sign)
