Answer:
Hi! The correct answer is x= -3 ,-5!
Step-by-step explanation:
<em>~Factor and set each factor equal to 0~</em>
Answer:
7.87 years
Step-by-step explanation:
#First we determine the effective annual rate based on the 9% compounded semi annual;

#We then use this effective rate in the compound interest formula to solve for n. Given that the principal doubles after 2 yrs:

Hence, it takes 7.87 years for the principal amount to double.
X is 9
12x + 17 = -1 + 14x
18 = 2x
x = 9
Answer:
16.225
just times 2.5 times 6.49