Answer:
6700.6 BTU
Step-by-step explanation:
First you have to warm the block from -15° F to 32°F, the heat to needed to do this is:

After you need to melt the ice. The heat you need is:

Finally, you need to heat the water from 32° F to 200 ° F, and the heat for this is:

To have the total heat you used you have to su
and
A(x)=x^-14x+49
A(x)=(x-7)^2+2401
A(x)-2401=(x-7)^2
9514 1404 393
Answer:
650 ≤ x ≤ 975
Step-by-step explanation:
The minimum sum is the sum of the minimums:
200 +225 +100 +125 = 650
The maximum is the sum of the maximums:
275 +375 +150 +175 = 975
Then the total for the two days and two stores is ...
650 ≤ x ≤ 975
The answer is 26 centimeters.