(5) Evaluate the ratio 2.8x10^9 :0.4 x 10^7
in standard form.
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Answer:
700 : 1
Step-by-step explanation:
2.8 × 10^9 = 280 × 10^7
2.8 × 10^9 : 0.4 × 10^7
= 280 × 10^7 : 0.4 × 10^7
= 280 : 0.4
= 2800 : 4
= (2800/4) : (4/4)
= 700 : 1
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