Answer:
9.694 years
Step-by-step explanation:
Let the investment is $P.
So, we are asked to determine the time it will grow to triple with the compound interest rate of 12%.
Let the time is y years.
So, from the formula of compound interest we can write
⇒ 
⇒ 
Now, taking log both sides we get,
y log 1.12 = log 3 {Since, 
}
⇒ 0.04922y = 0.477712
⇒ y = 9.694 years (Answer)
For this case we have the following quadratic equation:
Where:
By definition, the discriminant of a quadratic equation is given by:
We have to:
Two different real roots
Two different complex roots
Two equal real roots
Substituting the values we have:
So, we have two different complex roots
Answer:
Two different complex roots
5 dollars a ticket. Divide 80/16 to get tour answer.
I hope this hepls you
f⁻¹(x)=3x+7
f⁻¹(4)=3.4+7=19
