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3 years ago

(9.5×10 6 )×(4.0×10 2 ) in scientific notation

Mathematics

2 answers:

Juliette [100K]3 years ago

8 0

9.5 * 10^6 = 9,500,000

4.0 * 10^2 = 400

9,500,000 * 400 = 3,800,000,000 = 3.8 * 10^9

MakcuM [25]3 years ago

5 0

(9.5 × 10⁶) × (4.0 × 10²) in scientific notation

(9.5 × 10⁶) × (4.0 × 10²) = (9.5 × 4) × (10⁶ × 10²) =

= 38 × 10⁶⁺² = 3.8 × 10 × 10⁸ = 3.8 × 10¹⁺⁸ = 3.8 × 10⁹ in scientific notation

Answer : 3.8 × 10⁹ in scientific notation

Hope this helps!

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Weight of ants = $4\times10^{-3}$

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We need to find, the total weight of about how many ants equals to the weight of an oversized elephant.

The equation given is:

$4\times10^{-3} \times a = 8\times10^6$

We need to find a:

Solving:

$4\times10^{-3} \times a = 8\times10^6\\a=\frac{8\times10^6}{4\times10^{-3}}\\if \,\,10^a/10^-b \,\,then\,\, 10^{a+b}\\a=2\times10^{6+3} \\a=2\times10^9$

So, the required value is $2\times10^9$

Keywords: Scientific Notation

Learn more about Scientific Notation at:

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