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rewona [7]
3 years ago
15

NEED HELP PLEASE!!!!!

Mathematics
1 answer:
Ghella [55]3 years ago
6 0
1)  14/20=21/25+x
      x=5
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3.45\times10

Step-by-step explanation:

(2.3  \times 10^{4}) \times ( 1.5 \times10^{-3} )= 2.3\times1.5\times10^{4}\times10^{-3}

                                        = 3.45\times  10^{((4)+(-3))}

                                        =3.45\times10

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