The value of x is a variable that is assigned either by you, it is given, or computed. For example if you have a question that asks for you to compute x time, it is asking how many seconds it took.
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The phrase "x time" typically refers to a specific occurrence or instance, where the variable "x" represents a numerical value. For example, "two times" means two occurrences or instances of something. It can also refer to a multiplication operation, such as "3 times 4" meaning 3 multiplied by 4.
If you mean a brief moment of time: seconds.If you mean momentum: this is mass x velocity, so the units are kg x meters / secondsIf you mean a brief moment of time: seconds.If you mean momentum: this is mass x velocity, so the units are kg x meters / secondsIf you mean a brief moment of time: seconds.If you mean momentum: this is mass x velocity, so the units are kg x meters / secondsIf you mean a brief moment of time: seconds.If you mean momentum: this is mass x velocity, so the units are kg x meters / seconds
If you mean: 4*square root of x2 then it is 4x
It means that the time it took you to post this question, you could have typed it into a calculator. D'oh!
The triangle is called delta. It means change. For example, a variable x might change over time. At the beginning of time, x would be x0, at some other point in time x might be xh. The distance between x0 and xh would be ∆x (delta x, or the change in x)
If you mean -(x^2) * x then the answer is -x^3 if you mean (-x)^2 * x then the answer is x^3