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sophia38
sophia38 sophia38
  • 28-04-2016
  • Mathematics
Answered

How do I solve this?

How do I solve this? class=

Verified Answer :

Panoyin
Panoyin Panoyin
  • 29-04-2016

y = abˣ
   20 = ab¹
   20 = ab
    b      b
20/b = a

 y = abˣ
 4 = (20/b)b²
 4 = 20b
20    20
¹/₅ = b

   y = abˣ
 20 = ¹/₅b¹
 20 = ¹/₅b
  ¹/₅     ¹/₅
100 = b

y = abˣ
y = 100(0.2)ˣ

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