olivia7584
olivia7584 olivia7584
  • 02-05-2019
  • Mathematics
contestada

What is the sum of 4.9 × 102 and 6.8 × 103?

Respuesta :

kudzordzifrancis
kudzordzifrancis kudzordzifrancis
  • 02-05-2019

Answer:

The sum is

[tex]7.92\times 10^3[/tex]

Step-by-step explanation:

We want to add

[tex]4.9\times 10^2 and 6.8\times 10^3[/tex]

The sum of these two numbers is:

[tex]4.9\times 10^2 +6.8\times 10^3[/tex]

This is the same as:

[tex]4.9\times 100 +6.8\times 1000[/tex]

[tex]490 +6800=7290[/tex]

We rewrite 7290 in standard form to get;

[tex]7.92\times 10^3[/tex]

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