Question

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 that aids in cooling according to the function h(x) = −x − 3. What will be the temperature of the metal after 5 hours?

Answer 1

@jim_thompson5910 @ganeshie8 @mathmale

Answer 2

I'm not that familiar with physics so I don't know how they want you to combine c(x) and h(x). Do they want you to add the functions?

Answer 3

this is algebra 2 hmm

Answer 4

do you think we should add them togehter?

Answer 5

maybe, that's just a guess though

Answer 6

−8° Celsius
26° Celsius
32° Celsius
56° Celsius

Answer 7

those are my option

Answer 8

you might be better off asking this in physics

Answer 9

http://openstudy.com/study#/updates/536ba691e4b0970f16385d71

Answer 10

i dont know how to do what he explaind

Answer 11

I guess we could do this

c(x) = 0.5^(x-11)
c(5) = 0.5^(5-11)
c(5) = 64


h(x) = -x-3
h(5) = -5-3
h(5) = -8


p(x) = c(x) + h(x)
p(5) = c(5) + h(5)
p(5) = (64) + (-8)
p(5) = 56


but again this is just a guess that you add the two functions

Answer 12

oh i got it 56

Answer 13

yes got it right