Question

A chemist is researching different sustainable fuel sources. She is currently working with benzene, which must be in liquid form for her to successfully conduct her research. The boiling point of benzene is 176° F, and the freezing point is 42° F.
Part A: Write an inequality to represent the temperatures the benzene must stay between to ensure it remains liquid. (2 points)

Part B: Describe the graph of the inequality completely from Part A. Use terms such as open/closed circles and shading directions. Explain what the solutions to the inequality represent. (4 points)

Part C: In February, the building's furnace broke and the temperature of the building fell to 20° F. Would the chemist have been able to conduct her research with benzene on this day? Why or why not? (4 points)

Answer 1

Part A IS THE CORRECT ANSWRR

Answer 2

Answer: Part A:

We must be above the freezing point and below the boiling point

Using the variable t for temperature

42<t<176

Part B:

There is an open circle at 42 since it is not equal and an open circle at 176 since is it not equal.  There is a line between the open circles to show that the temperature can be between 42 and 176, not including 42 and 176.

Part C

20F is below 42 F so it is outside of the range of temperatures allowed.  The researcher cannot research on this day.

20 <42

Step-by-step explanation: brain list, please?