It is not written in scientific notation because there should be a decimal in 44 in order to be correct. It should be 4.4 x 10 ^8
The answer is 11 because 4+(-7) is -3 since adding a negative is like subtracting a positive and -3+14 is 11. Hope this helps!
Answer:
2x -2.
Step-by-step explanation:
2 x x = 2x 2 x -2 = -2.
Notice that
so that for each power of 2, there is a pattern of period 4. This means that for integers
, each of
,
,
, and
have the same units digit.
We can write
, and since
, it follows that
and
share the same units digits. So the units digit of
is 8.