Question

Express the sum of 5.45 x 1019 and 3.67 x 1021 in standard form!

Answer 1

Answer:

Standard Form

Step-by-step explanation:

$5.45 \times 1019 = 5553.55$

$5553.55 = 5.55355 \times {10}^{3}$

$3.67 \times 1021 = 3747.07$

$3747.07 = 3747.07 \times {10}^{3}$

Answer 2

Answer:

9.30062 × $10^{3}$

Step-by-step explanation:

First step: Find the product of 5.45 and 1019

5.45 x 1019 = 5,553.55

Second step: Find the product of 3.67 and 1021

3.67 x 1021 = 3,747.07

Third step: Find the sum of the products.

         5553.55

   +    3747.07

________________

         9300.62

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Fourth step: Find the standard form of the obtained number.

  9,300.62 = 9.30062 × $10^{3}$

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