Aheated piece of metal cools according to the function c(x) = (.5)x − 9, where x is measured in hours. a device is added that aids in cooling according to the function h(x) = −x − 2. what will be the temperature of the metal after five hours? −7° celsius 6° celsius 9° celsius 16° celsius

9 degrees celsius, hope this helped!

9° Celsius

Step-by-step explanation:

Given,

The heated piece of metal cools according to the function,

After adding the device that cools according the function,

The new function that shows the final temperature of the metal,

 ( Let )

Hence, the temperature of the metal after five hours would be,

Third Option is correct.

answdf

step-by-step explanation: bcuz d is right