A heated piece of metal cools according to the function c(x) = (.5)^(x _ 11), where x is measured in hours. A device is added th at aids in cooling according to the function h(x) = _x _ 3. What will be the temperature of the metal after five hours? A. _8Á Celsius
B. 26Á Celsius
C. 32Á Celsius
D. 56Á Celsius
2 answers:
Answer:
Option D
Explanation:
A heated piece of metal cools according to the function
And a device which aids in cooling is added is represented by the function h(x) = -x - 3
Temperature of the metal after x hours will be represented by
c(x) + h(x) =
=
We have to find the temperature after 5 hours
So c(5) - h(5) =
=
= 64 - 8
= 56° Celsius
Option D is the answer.
You just need to replace x with 5 in each function .5^5 - 11 -5-3 .5 ^-6 -8 64 - 8 = 56 A Celcius Hope this helps
You might be interested in
Answer:
Growth and Development
Due to the shape of the lens , parallel rays will be deviated
There's the acceleration of the car that provides a force and the normal force of the seat cushion which pushes upwards against the passenger
Molecules in the solid phase have the least amount of energy, while gas particles have the greatest amount of energy. The temperature of a substance is a measure of the average kinetic energy of the particles.
ANSWER: NATURE EXPLAINTION: