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Alinara [238K]
2 years ago
14

Multiply (2.0 ⋅ 10−4) ⋅ (3.1 ⋅ 10−20). Express the answer in scientific notation. The options are:

Mathematics
1 answer:
Mkey [24]2 years ago
3 0
(2.0×10^-4)×(3.1×10^-20)
=(2.0×3.1)×(10^4×10^-20)
=6.2×10^(-4+(-20))
=6.2×10^-24. Hope it help!
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S(area)=4*pi*r^2

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The Surface Area of the sphere is 1017.16 unit^2.

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