SOLUTION: Hi everyone.I really need your help answering all of these questions in my assignment.It is my only chance to pass my subject. It is due tomorrow. A truck travelling along a stra

Question 347037: Hi everyone.I really need your help answering all of these questions in my assignment.It is my only chance to pass my subject.
It is due tomorrow.
A truck travelling along a straight section of highway, on a wet evening, braked suddenly to avoild blinky Bill who had wandered onto the road off in the distance.The reducing velocity of the truck under braking,v, in metres per second,is modelled by the equation:
v=30e^-t/2 -5
where t is the number of seconds after the brakes were applied.Assume the truck held its line under braking conditions.
1. calculate how long it took the truck to come to a stop. Express your answer as both an exact value and accurate to 2 decimal places.
2. At what time after braking was the truck's velocity 15m/s.Express your answer as both an exact value and accurate to 2 decimal places.

Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
I asked a question yesterday but you did not respond.
Is the exponent of the function or is it and the is just a constant?
RELATED QUESTIONS
Use slopes to show that the square with virtices at (-2,5), (4, 5), (4, -1), and (-2, -1) (answered by stanbon)

Hi All, I just wanted to thank everyone for your help you have given me these last few... (answered by edjones)

HI Everyone! I actually need help with my English homework and know there are alot of... (answered by Nate)

hi please can you help me with coterminal angles i try really hard in school but i... (answered by stanbon)

I really need help with the two questions I have posted so I do not fail my assignment... (answered by ewatrrr)

Hello, My name is Lauren and I have a quick question that I really need help with... (answered by applesrbest)

Hi. Ineed your help for my... (answered by Alan3354)

Hi, My name is Lauren and I really need help with my homework. Can you please help me... (answered by stanbon)

I have my math final for my Algebra 1B class. This final has 66 questions. The material... (answered by edjones)