Let r be the rate at which oil production is decreasing from the well. Then:
5000000 x r^6=2500000
r^6=.5
ln r^6=ln .5
6 ln r=-0.69314718055994530941723212145818
ln r=-0.11552453009332421823620535357636
r=e^-0.11552453009332421823620535357636=.891
Since the oil production is only 0.891 of the previous year, the annual rate of loss is 0.109, or 10.9%, growing annually
A.3000000=5000000x(.891)^t
.6=0.891^t
t=4.42 years
Oil is being pumped at .60 of original production
B.250000=5000000 x 0.891^t
.05=.89^t
t=25.96 years
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Answer:
1. an equal sign
Step-by-step explanation:
An expression is a mathematical statement that does not contain an equal sign. It cannot be solved for unless the value of the variable is given.
Answer:312 i thin
Step-by-step explanation:
3x1.04 then the =312 i think 312
Answer: ab = 35 Hope this helps, please consider making me Brainliest.
Step-by-step explanation:
If ac = 62, and bc = 27, the remaining length belongs to ab. However, since ac holds bc, subtract ac - bc = ab. Now let's substitute:
ac - bc = ab --> 62 - 27 = ab --> 62 - 27 = 35, 35 = ab
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