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Help please due later today.....
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8 votes
Help please due later today.....

Help please due later today.....-example-1
User Samanth
by
6.8k points

2 Answers

12 votes

Answer:

Explanation:

a).

2.2 ×
10^(-3) + 9 ×
10^(-4) =

2.2 ×
10^(-3) + 0.9 ×
10^(-3) =

( 2.2 + 0.9 ) ×
10^(-3) = 3.1 ×
10^(-3)

b).

2.2 ×
10^(-3) - 9 ×
10^(-4) =

2.2 ×
10^(-3) - 0.9 ×
10^(-3) =

( 2.2 - 0.9 ) ×
10^(-3) = 1.3 ×
10^(-3)

User Fbielejec
by
6.4k points
7 votes

Answer:

a- the sum = 0.0031

b- the fly is 0.0013 grams heavier

User ConroyP
by
7.5k points
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