# What is the radius of a circle with a circumference of 22?

Approximately

So in our case

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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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- What is the the vertex of #y=(x -1)^2 + 2x +16#?
- How do you solve #x^2 + 5x + 1 = 0# using the quadratic formula?

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