SOLUTION: If g(t) = log(25-5t)-3 a) Find g(5) b) Solve g(t) = 0

Algebra ->  Functions -> SOLUTION: If g(t) = log(25-5t)-3 a) Find g(5) b) Solve g(t) = 0      Log On


   



Question 1008488: If g(t) = log(25-5t)-3
a) Find g(5)
b) Solve g(t) = 0

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
If g(t) = log(25-5t)-3
a) Find g(5)
Wherever there's a t, sub 5
g(5) = log(25-5*5) - 3
= log(0) - 3
log(0) is not allowed.
==================
b) Solve g(t) = 0
log(25-5t)-3 = 0
log(25-5t) = 3
25-5t = 10^3 = 1000
-5t = 975
t = -39