Answer:
In the 1800's, photography were important for memories of the people lost in the war, and to have a something to reminisce for good times.
Explanation:
18.D
19.A
20.C
21.B
theses are going to be your answers
Answer:
The standard unit used to measure energy and work done in physics is the joule, which has the symbol J. In mechanics, 1 joule is the energy transferred when a force of 1 Newton is applied to an object and moves it through a distance of 1 meter. Another unit of energy you may have come across is the Calorie.
Explanation:
Answer:
so the value of derivative is:-
dy/dx= 2×1 + 8 = 10
