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04:30
Scientific Notation - Comparison
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If a x
is scientific notation, then a must be between 1 and ___.
A 10
B 100
C n
Which is larger, 3.2 x
or 3.2 x
?
A 3.2 x 10^4
B 3.2 x 10^5
Which is larger, 3.3 x
or 3.1 x
?
A 3.3 x 10^5
B 3.1 x 10^5
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Answer 1

Answers:
1) A — 10 (in scientific notation a is between 1 and 10)
2) B — 3.2 × 10^5 (10^5 is ten times larger than 10^4)
3) A — 3.3 × 10^5 (3.3 is greater than 3.1, same exponent)