Anthea is running an experiment to examine vaccine shelf life, and she must precisely monitor the temperature. The starting temperature is −116 degrees Celsius (°C). The temperature rises by 35 degrees, then fall by 12 a degree. What is the final temperature?

Correct answer:

t2 =  -93 °C

Step-by-step explanation:

t1=116 °C Δ=+3512=23 °C t2=t1+Δ=(116)+23=93°C

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