Answer:
Step-by-step explanation:
5^2x=7^x+1 ⇔ ln5^2x = ln7^x+1 ⇔ 2xln5 = (x+1)ln7 ⇔ (2ln5-ln7)x = ln7
⇔ x = ln7/(2ln5-ln7)
If 1 foot= 0.37 metres and 1 miles = 5180 feet, find the number of kilometres in 15 miles
1 answer:
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Answer:
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Step-by-step explanation:
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Answer:
Step-by-step explanation:
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