(1 x 10 ^ -3) ÷ (5 x 10 ^ 2) in standard form Plz ANSWER QUICK

Question

(1 x 10 ^ -3) ÷ (5 x 10 ^ 2) in standard form Plz ANSWER QUICK

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Thiên Ân 4 years 2021-07-20T04:27:27+00:00 2 Answers 17 views 0

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  1. thanhcong
    0
    2021-07-20T04:29:17+00:00
    Reply

    Answer:

    2 × 10⁻⁶

    Step-by-step explanation:

    ( 1 × 10⁻³ ) ÷ ( 5 × 10² )

    → Rewrite into normal form

    0.001 ÷ 500

    → Simplify

    2 × 10⁻⁶

  2. minhkhang
    0
    2021-07-20T04:29:21+00:00
    Reply

    Answer:

    \frac{1}{500,000}=2*10^{-6}

    Step-by-step explanation:

    \frac{1*10^{-3} }{5*10^{2} } =\frac{1}{5} *10^{-3-2}=\frac{1}{5} *10^{-5} = 500,000^{-1}= \frac{1}{500,000} = 2*10^{-6}

    We have:

    \frac{a^{x} }{a^{y} } = a^{x-y}

    In this case: \frac{10^{-3} }{10^{2} } = 10^{(-3)-2} =10^{-5} =\frac{1}{100,000}

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )