Stephen deposited $1800 into a savings account for which interest is compounded weekly at a rate of 3.2%. how much interest will he earn after 10 years? 58.81 678.59 2478.59 im just putting this up to see if my answer was write. i did the math and unless i messed up writing i got the second answer

A = P(1+i/n)^nt

A = Total amount paid
P = Principal amount
i = Annual interest
n = number of payments per year
t = time in years

Substituting the values given,
A = 1800(1+0.032/52)^52*10 = $2,478.59

Interest paid = A - P = 2478.59-1800 = $678.59

Second answer is correct.

The length of the arc between consecutive vertices is:

Step-by-step explanation:

The angle between consecutive vertices is 60°, it is because it forms an equilateral triangle.

Now, the length arc is defined as:

Where:

R is the radius (R = 8 in)θ is the angle of the arc

We see the angle is in grades, but we need to convert it to radians.

Finally, the length of the arc between consecutive vertices will be:

 

I hope it helps you!