On average, a person’s heart beats about
4.2
×
1
0
7
4.2×10
7<...
Mathematics, 20.10.2020 21:01, aj0914
On average, a person’s heart beats about
4.2
×
1
0
7
4.2×10
7
times per year. There are about
7
,
600
,
000
,
000
7,600,000,000 people in the world. Use this data to approximate the number of heartbeats for all the people in the world per year. Expressing your answer in scientific notation in the form
a
×
1
0
b
a×10
b
, what are the values of
a
a and
b
b?
Answers: 2
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