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Mathematics 14 Online
OpenStudy (sunshinemarie):

In 2 + In x=5

OpenStudy (welshfella):

use the law ln a + ln b = ln ab

OpenStudy (sunshinemarie):

how do i start

OpenStudy (08surya):

ln(2*x)=5 2x=10^5 x=100000/2=50000

OpenStudy (welshfella):

No these are logs to the base e so its 2x = e^5

OpenStudy (welshfella):

so x = e^5 /2

OpenStudy (sunshinemarie):

im confused

OpenStudy (sunshinemarie):

@welshfella

OpenStudy (welshfella):

e is a special number called the exponential constant its value is about 2.71828 ln is a log to the base e You van find the value of e^5 / 2 using a scientific calculator

OpenStudy (welshfella):

the button will probably be marked e^x and the power button is ^

OpenStudy (sunshinemarie):

so 74.206?

OpenStudy (sunshinemarie):

@welshfella

OpenStudy (08surya):

(e^5)*1/2

OpenStudy (sunshinemarie):

?

OpenStudy (sunshinemarie):

@welshfella @welshfella

OpenStudy (sunshinemarie):

@welshfella

OpenStudy (sunshinemarie):

@welshfella

OpenStudy (welshfella):

thats correct

OpenStudy (sunshinemarie):

what is

OpenStudy (sunshinemarie):

if i fail, im suing

OpenStudy (welshfella):

74.207 is correct

OpenStudy (welshfella):

sorry - I got tied up

OpenStudy (sunshinemarie):

?

OpenStudy (welshfella):

I got delayed

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