Assume that a one-year CD purchased for $4000 pays an APR of 4% that is compounded quarterly. How much is in the account at the end of each compounding period? (Calculate the interest and compound it each period rather than using the compound interest formula. Round your answers to the nearest cent.) first quarter $
second quarter $
third quarter $
fourth quarter $

How much total interest does it earn? (Round your answer to the nearest cent.)
$

What is the APY? (Round your answer to two decimal places.)
%

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Okay so for every triangle has three angles that always add up to 180 degrees. and to tell the difference between whether they are secure, right or obtuse is that acute: has one angle that is less than 90 degrees. right triangle means there is at least one angle that is exactly 90 degrees. and an obtuse angle has an angle that is bigger than 180 degrees. i’ll do #13 as an example: 13. 40 and 50 so if every triangle has 180 degrees 40+50= 90 degrees then180-90= 90 degrees so the third angle is 90 degrees and because this triangle has a 90 degree angle it means it is a right triangle