I don't understand where it says "enter your answer correct to four decimals" I've tried 20 different answers and I just can't find it

I dont understand where it says enter your answer correct to four decimals Ive tried 20 different answers and I just cant find it class=

Respuesta :



Its says round the decimals 

4^.2X +6 = 43
4^.2X  = 37 
Taking logs of both sides
X * log (4.2) = log (43)
X = log (43) / log (4.2)
X =  1.633468456 0.6232492904
X =  2.6208910001
rounded to 4 decimal places:
X = 2.6209