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Dubai, United Arab Emirates set a record temperature for 49^(@)C. What does the number 49 mean? Choose 1 answer: A Dubai's record high temperature is 49^(@)C below zero. (B) Dubai's record high temperature is 49^(@)C above zero.

Dubai, United Arab Emirates set a record temperature for 49∘C 49^{\circ} \mathrm{C} .\newlineWhat does the number 4949 mean?\newlineChoose 11 answer:\newline(A) Dubai's record high temperature is 49∘C 49^{\circ} \mathrm{C} below zero.\newline(B) Dubai's record high temperature is 49∘C 49^{\circ} \mathrm{C} above zero.

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Full solution

Q. Dubai, United Arab Emirates set a record temperature for 49∘C 49^{\circ} \mathrm{C} .\newlineWhat does the number 4949 mean?\newlineChoose 11 answer:\newline(A) Dubai's record high temperature is 49∘C 49^{\circ} \mathrm{C} below zero.\newline(B) Dubai's record high temperature is 49∘C 49^{\circ} \mathrm{C} above zero.
  1. Problem statement: The problem statement mentions that Dubai set a record temperature of 49 ∘C49\,^\circ\mathrm{C}. The symbol ＂∘C^\circ\mathrm{C}＂ stands for degrees Celsius, which is a unit of temperature. The number 4949 is directly followed by this unit, indicating that it is a measure of temperature.
  2. Temperature measurement: In the context of temperature measurements, a positive number like 4949 indicates a temperature above zero degrees Celsius. Zero degrees Celsius is the freezing point of water, so any positive number above this indicates a temperature that is warmer than the freezing point of water.
  3. Determining the temperature: Given the two options provided, we need to determine whether 49 ∘C49\,^\circ\mathrm{C} represents a temperature above or below zero. Since 4949 is a positive number and we have established that it represents a temperature above zero, option A, which suggests that the temperature is below zero, is incorrect. Therefore, option B, which states that Dubai's record high temperature is 49 ∘C49\,^\circ\mathrm{C} above zero, is the correct interpretation of the number 4949 in this context.

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