Aheated 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 five hours?
a. _8á celsius

b. 26á celsius

c. 32á celsius

d. 56á celsius

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.

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c) both a and b.

hi,

what occurs during a solar eclipse?

there are small tides across earth.

the moon is between earth and the sun.

p.s. im not sure if the first answer is correct because during a solar ecliphse there are spring tides and i dont know if they are the same.