Answer:
60
Step-by-step explanation:
Is because when you have two negative -- signs it became positive
19 + 41 = 60
The idea is to use the tangent line to 
at 
in order to approximate 
.
We have
so the linear approximation to 
is
Hence 
and 
.
Then
law<span> states that </span>energy<span> cannot be created nor destroyed but it </span>can<span> only be transferred from one form to another form. (</span>Coal<span> - Fuel) Chemical </span>energy<span> is converted into heat </span>energy<span> during combustion. With the help of heat generated, the water is converted into steam.</span>
1.) 7.2 2.) 15 3.)12
4.) 23 5.) 100, 100, 1000
