(1) Express the following by index notation (a)49,000 (b) 25,000
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Step-by-step explanation:
49,000 = 7²,10³
=7×7×10×10×10
=49×1000
= 49,000
25,000 = 5²,10³
= 5×5×10×10×10
=25×1000
= 25,000
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