Question

You are preheating an oven to 350°F the thermometer reads 346°F. The measured temperature has an absolute deviation of at most 2°F. Write and solve an inequality to decide if the oven is preheated yet

The following inequality determines if the oven is preheated yet:
[|346 - 350| leq 2]
a) (346 leq 348)
b) (346 geq 348)
c) (346 < 348)
d) (346 > 348)

Answer 1

The oven is not yet preheated.

Step-by-step explanation:

To decide if the oven is preheated yet, we need to check if the absolute deviation of the measured temperature (346°F) from the desired temperature (350°F) is at most 2°F. The absolute deviation is calculated as the absolute value of the difference between the two temperatures: |346 - 350| = 4°F. Since the absolute deviation is greater than 2°F, the oven is not yet preheated.

The correct inequality is: |346 - 350| ≤ 2. This means that the absolute value of the difference between the measured temperature and the desired temperature is less than or equal to 2°F.

So the correct answer is: (346 ≤ 348).