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Hi.
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In this problem, we're given two formulas for converting fahrenheit, or celsius to fahrenheit, and celsius to kevin, to kelvin, sorry.
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And then we're asked a few things about these functions.
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So for a, we're asked to explain in practical terms and calculate k of 40.
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So let's just start with calculating k of 40.
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So that we just use our second equation there.
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So this says, 40 plus 273 .15, which is 313 .15.
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So then in practical terms, what this means is that 40 degrees celsius is 313 .15 degrees kelvin.
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And that's all there is for that.
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Now for b, we want to find, or we want to express c as a function of k.
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So we use this second equation and we solve for c.
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So we get that c is equal to k minus 273 .15.
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That's your process.
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And then for c, we want to express f as a function of k...