Solve E=mc^2 for c?
A) c= E/m
B) c= m/E
C) c= +- square root (m/E)
D) c= +- square root (E/m)

±sqrt(E/m)= c

Step-by-step explanation:

E=mc^2

Divide each side by m

E/m=m/m c^2

E/m =c^2

Take the square root of each side

±sqrt(E/m)= sqrt(c^2)

±sqrt(E/m)= c

x/7.50 = 15

x= 7.50 / 15 divide

step-by-step explanation:

the first option is the answer.