Question

PLEASE HELP I SUCK AT MATH AND I NEED THIS TO PASS MY ALGEBRA 2 CLASS!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

I can help with the last one since i don't know the specifics of the loan thing.  For the last one, though, N is the end amount of bacteria; $N_{0}$ is the initial amount of bacteria; e is Euler's number, which is a constant; and t is time in hours.  So our equation would look like this: $1432=100( e^{5k} )$.  First divide both sides by 100 to get $14.32= e^{5k}$.  The only way you can get that k down out of the exponent is to take the natural log of both sides:  $ln(14.32)=ln( e^{5k} )$.  Of course taking the natural log of the right side undoes the e, and the natural log of 14.32 can be found on your calculator, so we have now 2.6616 = 5k.  Divide both sides by 5 to get that k = .53