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jholland18
22.01.2021 •
Mathematics
») Evaluate the expression for c = 4 and d = 11.
C + d =
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Ответ:
4+11=15
Step-by-step explanation:
c=4 11=b
4(c) + 11(d) = 15
Ответ:
A=P.e^(rt), where A is the amount generated after t years, P is the principal amount you deposit at the bank, e=2.718 (constant), r= interest rate
and t the time in years
In short they are asking, at an interest rate of 12% (or 0.12), after how many years (t=?) A becomes 2P
2P=P.e^(0.12t)==> 2= e^(0.12t)
ln2 = (0.12t).lne or lne=1 & ln2 = 0.693 ==>0.693/0.12 =t & t=5.776 years