Does anyone know how to enter the following formula into a calculator?

Question

anonymous · Answer

attachment

anonymous · Answer

Every way I try to enter this formula, it doesn't come out anywhere close to 47

anonymous · Answer

I have a TI-83 Plus if that helps

anonymous · Answer

get used to using the ANS button. it lets you use your immediate previous answer as many times as your want in your current equation (we'll only use it once though)
do Ln(0.5)
ANS/1690
ANS * 550
e^ANS (2nd function Ln to get e^x)
60*ANS

to get ANS you press 2nd Function then (-) symbol beside equal sign

campbell_st · Answer

the equation is missing the multiplication symbols so it can be entered as

$$60  \times e^{(\frac{1}{1690} \times \ln(\frac{1}{2}))\times 550}$$

campbell_st · Answer

and I got 47.88

anonymous · Answer

mother of god, it worked after playing with it for 5 minutes. yall both helped a lot but i have to give euler medal since he respoded first and the technique worked

campbell_st · Answer

well I put it into a TI 83 plus... and you just need a 2nd set of brackets after pressing e^x