Answer:
C
Step-by-step explanation:
400-160=240
240/4=60
Answer: its C
got is right on edge2020
Step-by-step explanation:
The answer is 30,60,90. Because 60 is twice the number 30 and 90 is three times the first number.
Answer:
t = -24*log(2/3)
Step-by-step explanation:
The expression is:
V = 22,500*10^(-t/12)
Replacing with V = 10,000 and isolating t, we get:
10,000 = 22,500*10^(-t/12)
10,000/22,500 = 10^(-t/12)
4/9 = 10^(-t/12)
(2/3)² = 10^(-t/12)
2*log(2/3) = -t/12
-12*2*log(2/3) = t
t = -24*log(2/3)
I haven't done this kind of work in a bit, but I believe it's 8.