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# What is a derived quantity?

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### Quick Answer

**A derived quantity is a quantity that is based on the result of a systematic equation that includes any of the seven basic quantities, which are the kilogram, meter, second, ampere, kelvin, mole and candela.** Examples of derived quantities include area (square meters), speed (meters per second) and frequency (hertz).

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Most derived quantities have been assigned special names and symbols because of their complexity of presenting them using base units. An example of this is the newton, which is a unit of force that equates to the amount of force needed to accelerate 1 kilogram by 1 meter per second per second. Two of the derived quantities, the radian and steradian, are dimensionless.

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Q:
## How are decimals written in expanded form?

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Full Answer >**A decimal number is written in expanded form by multiplying each individual number by the value of the decimal place that it occupies.**Expanded form is rarely used, as both decimal form and mixed form are more convenient and practical forms of a non-whole number.Filed Under: -
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## What is the integral of sin 2x?

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Full Answer >**The integral of sin 2x is -(1/2) X cos(2x) + C, where C represents a constant.**The integral can be found using the substitution technique of integration, which reverses the method for finding a derivative using the chain rule.Filed Under: -
Q:
## What are critical points in calculus?

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Full Answer >**In calculus, critical points or stationary points are any values of differentiable functions of complex or real variables whose derivative is 0, f(x0) = 0.**In a differentiable function that has several real variables, critical points are values in the domain where the partial derivatives are 0. The values of critical points are known as critical values.Filed Under: -
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## How do I solve piecewise functions?

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Full Answer >**Piecewise functions are solved by graphing the various pieces of the function separately.**This is done because a piecewise function acts differently at different sections of the number line based on the x or input value.Filed Under: