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Math PLZ HELP

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1. Which of the following expressions is written in scientific notation?
1. 73.4 x 105
2. 0.09 × 107
3. 80 x 103
4. 4.22 x 10–3

2. Which of the following is 0.0000000708 written in scientific notation?
1. 7.08 x 10–8
2. 7.8 x 10–8
3. 708 x 10–10
4. 70.08 x 10–9

3. Which expression represents the largest number?
1. 40.1 x 10–6
2. 4.1 x 10–7
3. 0.411 x 10–7
4. 0.04001 x 10–5
4. Which expression is equal to 1/8000 written in scientific notation?

1. 8.0 x 103
2. 1.25 x 10–4
3. 125 x 10–5
4. 1.25 x 104

  • Math PLZ HELP - ,

    if you know anything about scientific notation, #1,2 should be easy.

    For #3, convert all to same power of 10, then it is easy to compare.

    #4: 1/8000 = .000125

  • Math PLZ HELP - ,

    1.)A
    2.)C
    3.)B
    4.)B

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