ANSWER 1: 8•107=856 and 2•104=208 so 856-208=648, meaning that the difference between 8•107 and 2•104 is 648.
ANSWER 2: If 49 in scientific notation is 8•10^0 then we divide by 100,000 and get 0.00008•0.00010^0
You can know that it is wrong because by multiplying 6, which is the rounded version of 6.27, by 7 that you will get 42, which is the approximate answer. 438.9 is not even close to thatanswer
Expanding, you get 5*2f-5*6g. You then get 10f-30g
Hrcku hdxvhjgf hgdchuh bbbbb logs. Job hrvh
This downward-opening parabola has its vertex at x = -8, so the function is decreasing on the interval (-8, ∞).
