Hannah has an offer from a credit card issuer for 0% apr for the first 30 days and 12.22% apr afterwards compounded daily. what effective interest rate is hannah being offered?

The answer is 12.81%

Step-by-step explanation:

Given is :

Hannah has an offer from a credit card issuer for 0% APR for the first 30 days.

So we will calculate the effective rate for days. Assuming that the given year is not a leap year.

After 30 days APR = 12.22% or 0.1222

n = 335

Effective interest rate is given by:

r=

In percentage this becomes 12.81%

x =±sqrt(1/3)

step-by-step explanation:

x+4/6x=1/x

multiply each side by 6x to get rid of the fractions

6x*(x+4/6x)=1/x*6x

distribute

6x^2 +4 = 6

subtract 4 from each side

6x^2 +4-4 = 6-4

6x^2 =2

divide by 6

6x^2/6 = 2/6

x^2 = 1/3

take the square root of each side

sqrt(x^2) = ±sqrt(1/3)

x =±sqrt(1/3)

c) yes, because of asa or aas