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galben [10]
4 years ago
14

He formula c = 5 9 (f − 32), where f ≥ −459.67, expresses the celsius temperature c as a function of the fahrenheit temperature

f. find a formula for the inverse function. f= 9 5​c+32 what is the domain of the inverse function? (enter your answer using interval notation.)
Mathematics
1 answer:
Grace [21]4 years ago
5 0
Should it not be 5/9?
Multiply both sides by 9/5
(9/5) * C = F - 32 
Add 32
(9/5)*C + 32 = F

A very quick way to get an estimate is to use this formula which can almost be done in your head.
C = 40
2*C + 30 = F
2*40 + 30 = F
80 + 30 = F
110 = F
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20 |_3
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Answer:
<span>6hs40min

</span>or<span>

</span>\frac{20}{3} hs =  \frac{20}{3} *60' =  \frac{1200}{3} = 400'
<span>
400' = 6*60' = 360' + 40' = 400' (True)
</span>Until

<span>6hs40min</span>
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