Solve the problem.If $300,000 is to be saved over 25 years, how much should be deposited monthly if the investment earns 8% interest compounded monthly?
A. $260.87
B. $180.48
C. $315.45
D. $216.62
Answer: C
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Solve the problem.In a study by psychologists Bornstein and Bornstein, it was found that the average walking speed w, in feet per second, of a person living in a city of population P, in thousands, is given by the function Find the walking speed of people in a city with a population of 1,541,211.
A. 14.25 ft/sec B. 4.47 ft/sec C. 5.32 ft/sec D. 3.62 ft/sec
Simplify.
A.
B. -
C. -
D.
Solve.Jack decided to put $600 into an IRA account every 3 months at a rate of 6% compounded quarterly. Find a recursive formula that represents his balance at the end of each quarter. How long will it be before the value of the account is $100,000? What will be the balance in 30 years when Jack retires?
A. B0 = 600 Bn = (1 + )B(n - 1) + 600; 7 years; $4 million
B. B0 = 600 Bn = (1 + )B(n - 1) + 600; 18 years; $151,860
C. B0 = 600 Bn = (1 + )B(n - 1) + 600; 10 years; $6.8 million
D. B0 = 600 Bn = (1 + )B(n - 1) + 600; 21 years; $202,355
Find the inverse of the matrix (if it exists).
a.
b.
c. does not exist
d.
e.