Answer:
2.58333333333
Step-by-step explanation:
y = -13, 13
There are two answers because you are taking the square root of a number. If we go the other way, to check our work, (-13)^2 = 169 and (13)^2 = 169.
Hope this helps! :)
Answer:
D
Step-by-step explanation:
It just is
78000000 in scientific notation is
7.8 x 10 ^ 7