NJay

Rounding to significant figures 99.98 to 3 significant figures Can it apply to this number as if I round to 100 this is one significant figure or we keep it as 99.9. Please clarify And same number to 2 sig figure Will it be 100? Or it stays 99 Round to 1...

Just want to double check If the question asks to find ratio of speed of car to speed of train given speed of car is 40 km/h and of train is 120km/h And I put as Train:car. (Instead of car:train) 120:40 12:4 3:1 Is this incorrect if I put in the reverse o...

If in index notation there are variables and numbers and question says to simplify and give answer as positive index then Is 1/3^2a^2 is it correct after simplifying all negative indices Or should we make it as 1/9a^2 Can we leave as 3^2? Or both Answers...

Thanks Scott and Steve Yes, I think Scott I understood and the answer is 14h 13 1/3min

Thanks Scott. I get it about 100. By adding decimal point becomes 3 dig fig What about rounding 99.98 to 2 sig fig? 100 will have one sig fig

Thanks again Scott! Wow.. 1.0e2 .. didn’t even think that one with this 100 is in 2 sig fig!

Second alternative I mean 1/3^2 a^2 ( leaving answer with positive index form as question said simplify and leave as positive index) Won’t this be fine too? Unless question said Simplify then I wouldn’t leave any exponent form. Since the question said sim...