Solve each problem and write your answer in scientific notation.

1.(6.0x10^5)x(3.0x10^4)
A.18x10^20
B.18x10^9
C.1.8X10^20
D.1.8x10^10
2.(5x10^-2) ÷(2x10^3)
A.2.5x10^-5
B.2.5x10^-1
C.25x10^1
D.25x10^2
3.(2.56x10^6)x(3.56x10^2)
A.9.1136x10^12
B.91.136x10^8
C.9.1136x10^8
D.91.136X10^12
4.In a recent year, the population of California was about 2.52x10^7 people. Its land area is about 4.05x10^5km^2. What was the average number of people per square kilometer?

4 answers

i just realized this question has already been asked ugh!!!
yeah, and you apparently didn't intend to put in any effort on it ...
my bad
Where has this question been asked?
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