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Multiply: 8 · (4 × 10⁻⁴) 4 × 10⁻² 4 × 10⁻³ 3.2 × 10⁻³ 3.2 × 10⁻²

Multiply.
8 · (4 × 10⁻⁴)
4 × 10⁻²
4 × 10⁻³
3.2 × 10⁻³
3.2 × 10⁻²




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What is the capital of Egypt? ( Cairo )

1 Answer

  1. To multiply the numbers, follow these steps:

    1. Multiply the coefficients: Here, you have 8 and 4.

    [

    8 times 4 = 32

    ]

    2. Add the exponents: When multiplying numbers in scientific notation, add the exponents of the powers of 10.

    – The first term has (10^{-4}) and the second term has (10^{-2}).

    [

    -4 + (-2) = -6

    ]

    3. Combine the results: Now, put the coefficient and the power of 10 together.

    [

    32 times 10^{-6}

    ]

    4. Convert to proper scientific notation: We typically express numbers in scientific notation with a coefficient between 1 and 10. So, we need to convert 32 into (3.2):

    [

    32 times 10^{-6} = 3.2 times 10^{-5}

    ]

    Therefore, the answer is (3.2 times 10^{-5}).

    Check the options you have, and if (3.2 times 10^{-5}) is not listed, double-check the calculations or the question specifics. If you need more assistance, feel free to check the extended services page!

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