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harkovskaia [24]
3 years ago
11

3. Convert 86 degrees Fahrenheit to degrees Celsius. A. 48°C B. 60°C C. 30°C D. 192°C

Mathematics
2 answers:
Arturiano [62]3 years ago
8 0
Your answer will be 
C. 30°C
Setler79 [48]3 years ago
7 0
A quick way (approximate) to do this is to subtract 30 and divide by 2. That give 27 which means that the answer should be C.

Now to do it properly
C = 5/9 (F - 32)
C = 5/9 (86 - 32)
C = 5/9 (54)
C = 30 exactly. 
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Bezzdna [24]

Answer:

Area of ΔDEF is 45\ cm^2.

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ΔABC and  ΔDEF is similar and ∠B ≅ ∠E.

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Thus the area of  ΔDEF is 45\ cm^2.

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