Let the original amount be A. Double that would be 2A.
Then, 2A = Ae^(r*5), or 2 = e^(5r).
Taking the natural log of both sides: ln 2 = 5r. Then r = (ln 2)/5 = 0.14
The interest rate would have to be 13.86% per year, written here as r=0.14.
I don't think that there is a number that can add to 13 exactly, because 12 times 2 is 24 and it equals 14. 3 and 8 equals 11, and 24 and 1 equals 24.
Answer:
f(-1) = 121
Step-by-step explanation:
f(x) = (5-6x)^2 (First we will substitute x for -1)
f(-1) = (5-6(-1))^2 (Then we will combine like terms)
f(-1) = (11)^2 (Then we will square it)
f(-1) = 121 (You are done)
Answer:
-8
Step-by-step explanation:
-8x - 47 = 17
+47 +47
-8x = 64
Divide both sides by -8
x = -8
Answer:
240 a year which is 720 for 3 years
