In the table below, we are given two annuity plans, a and b, and the amount invested into each plan every month. given this information, determine which of the two investments is an ordinary annuity, and the amount invested over a 12 month period.



a.

investment a is an ordinary annuity with an annual contribution of $1,100

b.

investment a is an ordinary annuity with an annual contribution of $100

c.

investment b is an ordinary annuity with an annual contribution of $1,100

d.

investment b is an ordinary annuity with an annual contribution of $100

 

the functions have the same rate of change i think. i narrowed it down to this answer and "the rate of change of tour 1 is greater" but i got it wrong using that answer so im assuming its the answer above. (this is a question i also answered from the iready site if anyone needs a reference)

you estimate that the angle of elevation to the top of the 86th floor (the observatory) is 82 .the total height of the building is another 123 meters above the 86th floor.

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