The solution to the problem is as follows:
If you use Ln you can get rid of e.
ln(e^0.4x) = ln(0.4)
0.4x = ln(0.4)
x = (ln(0.4))/0.4
<span>x = -2.29
</span>
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Answer:
Step-by-step explanation:
we know that
The simple interest formula is equal to
where
A is the Final Investment Value
P is the Principal amount of money to be invested
r is the rate of interest
t is Number of Time Periods
step 1
Find the rate of interest
in this problem we have
substitute in the formula above and solve for r
The rate of interest is 
step 2
Find the sum of money that will amount to 25,500 in 5 years, at the same rate of interest
in this part we have
substitute in the formula above and solve for P
Answer:
4) d = 1
5) w = 11
6) q = 120
Step-by-step explanation:
<em>4)</em> 
Adding 5 on both the sides ,


Dividing both the sides by 9 ,


<em>5)</em> 
Substracting 6 from both the sides ,


Dividing both the sides by -3 ,


<em>6)</em> 
Adding 19 on both the sides ,


Multiplying both the sides by 8 ,


Answer:
k=1
Step-by-step explanation:
Since the coefficient of
is 1, that is what you put for k
Hey, here’s your answer :)