Answer:
C. f(x) = 3(2 x)
Step-by-step explanation:
We are given with the equationL
V(t) = 320 e^(-3.1t)
At V = 200
200 = 320 e^(-3.1t)
t = 0.15 s
100 = 320 e^(-3.1t)
t = 0.36 s
It takes 0.36 - 0.15 = 0.21 s for the voltage to drop from 200 to 100 volts.
Answer:
r=1.8
Step-by-step explanation:
Sorry I don't really understand the question but
If you are looking for r in terms of w:
3w - 6r = 30
-6r = 30 - 3w
r = -5 + 0.5w
r = 0.5w - 5
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If you are looking for the exact value of x, sorry, I don't know..... (-_-")