Cynthia opened a retirement account with $23,000. The fund pays 2.9% interest compounded monthly. Cynthia expects to retire in 30 years. She also does not plan to make any payments into this account. She used the TVM Solver to help her predict how much her retirement fund will be worth in 30 years (see below). What did she do incorrectly? What can she do to fix her mistake? N = 360, I% = 2.9, PV = -$23,000, FV = ?, P/Y = 12, C/Y = 12

a. She used the wrong value for PV. She should have used $23,000.

b. She used the wrong value for I%. She should have used .242 which is (2.9/12).

c. She used the wrong value for P/Y. She should have used a lower number.

d. She used the wrong value for N. She should have used 30.

e. Cynthia didn’t make any mistakes.

the red lines denote the population of the bacteria after 35 hours. that would be 2,409.24. the y-intercept is the blue line which is 800 because that is the starting point. the equation used to make the graph is 800(1.032)^h, where h is the number of hours.

step-by-step explanation:

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geometry: triangles

solvers

lessons

answers archive

call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584