Which of the following shows the number 62000 × 10 3 written in scientific notat

Question

Which of the following shows the number 62000 × 103 written in scientific notation and keeping only significant figures?

6.2000000 × 104

6.2 × 101

62 × 100

6.2 × 107

6.2000 × 103

6.2000 × 107

Which of the following shows the number 352.780 × 103 written with 3 significant figures and written in proper scientific notation?

352

353000

3.53 × 103

352.78 × 102

3.53 × 105

Which of the following shows the number 76.38220 × 10-4 written with 2 significant figures and written in proper scientific notation?

7.64 × 10-4

7.6 × 10-3

7.6 × 10-5

7.62 × 10-5

76 × 10-4

6.2000000 × 104

6.2 × 101

62 × 100

6.2 × 107

6.2000 × 103

6.2000 × 107

Explanation / Answer

1) 6.2 × 107

we do not have to add the zero after the digit 2.

2)3.53 × 105

3)7.6 × 10-3

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