# The air pressure inside a passenger tire is 228 kPa. What is this pressure in atmospheres?

The pressure is

To convert the units of pressure as requested, let's apply the idea of conversion factors. First, we find the equivalent number of Pa that an atmosphere, or Atm, represents:

This may be expressed as a conversion factor as

We then choose the one that cancels the units we want to remove and keeps the ones we want, both of which are true.

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The air pressure inside the passenger tire is approximately 2.25 atmospheres.

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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