How do we express 4 less than the square of a number?

Mathematics

2 answers:

Alex73 [517]3 years ago

7 0

Let us say we have a number x.

Square of the number x is x².

4 less means we subtract 4 from the above found expression.

So final expression becomes:

$x^{2} -4$

Svetllana [295]3 years ago

3 0

$x^{2} - 4$

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Ammonia at 70 F with a quality of 50% and a total mass of 4.5 lbm is in a rigid tank with an outlet valve at the bottom. How muc

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Answer:

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Step-by-step explanation:

calculating the liquid mass of ammonia removed through the bottom value from a rigid tank at constant temperature.

Given:

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by taking the difference of mass we can determine the mass of liquid removed.

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