et's solve the exponential equation 4ex = 80. (a) First, we isolate ex to get

Algebra
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et's solve the exponential equation 
4ex = 80.
 
(a) First, we isolate ex to get the equivalent equation
 
.
 

(b) Next, we take ln of each side to get the equivalent equation
 
.
 

(c) Now we use a calculator to find x =  . (Round your answer to three decimal places.)

Jul 16th, 2015

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Jul 16th, 2015

 a.     ex = 20

b.      x = ln (20)

c.   x = 2.996

Jul 16th, 2015

top two are not showing correct

Jul 16th, 2015

a.    e^x = 80/4      or          e^x = 20

b .  ln (e^x) = Ln (20)     or     x = ln (20)

Jul 16th, 2015

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Jul 16th, 2015
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