help with log/exp q's plz

[hard]

This is from essentials

A radioactive substance is decaying such that the amount A g at time t years is given by the formula A=A₀. If when t=1, A=60.7 and when t=6, A=5, find the values of the costants A₀ and k.

heinamenn

solve all values of u:

[Damo17]

solve all values of u:

Find factors for .

so 1 is a factor.

synthetics division/ long division yields:

                                 
                                 

So

[hard]

thanks i got up to the factorizing but i totally forgot about the long division.

[mano91]

hey there, it is quite hard to get above 40.
u need a+'s, a's arent good enough to get 40+

[mano91]

sorry, wrong thread.

[kurrymuncher]

lol

[hard]

mm

another q guys.

8(1-e^-0.26t)

when t = 0

draw the graph, but i seem to get y = 0 cause 8(1-1) = 0

but the answer says other wise and also the calculator shows that the x asymptote is y=8 but really there's no +8, it's a minus?

[hard]

mm

another q guys.

8(1-e^-0.26t)

when t = 0

draw the graph, but i seem to get y = 0 cause 8(1-1) = 0

but the answer says other wise and also the calculator shows that the x asymptote is y=8 but really there's no +8, it's a minus?

not 0.

but it's 8*(o)?

[dekoyl]

^Yeah, sorry. My mistake I didn't read it correctly.

[dekoyl]

is asymptote.

So are you trying to find the y-value when t = 0?
If it's y-value when t = 0, then I think y = 0 as well.

What's the answer by the way?

[hard]

is asymptote.

So are you trying to find the y-value when t = 0?
If it's y-value when t = 0, then I think y = 0 as well.

What's the answer by the way?

well the q is actually

fuck it works out, sweet thanks bro