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dolphi86 [110]
3 years ago
7

X³+x²-x-1=? What is the solution for th8s?

Mathematics
1 answer:
Assoli18 [71]3 years ago
3 0

Answer: (x − 1 ) ^{2}

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Sung Lee invests $4,000 at age 18. He hopes the investment will be worth $16,000 when he turns 25. If the interest compounds con
irinina [24]

Answer:

The growth rate he needs to achieve his goal is approximatelly 19.8%

Step-by-step explanation:

Since the sum will be compounded continuously we have to use the appropriate formula given below:

M = C*e^(r*t)

Where "M" is the final amount, C is the initial amount, r is the interest rate and t is the time elapsed. Since Sung Lee will invest that sum at 18 years old and he wants to recieve the return at 25, then the time elapsed is given by 25 -18 = 7 years. We can now apply the data to the formula:

16000 = 4000*e^(r*7)

4000*e^(7*r) = 16000

e^(7*r) = 16000/4000 = 4

ln[e^(7*r)] = ln(4)

7*r = ln(4)

r = ln(4)/7 = 0.198

The rate of interest is given by (r)*100%, so we have (0.198)*100% = 19.8%.

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7) Calculate which is the best deal? Fill in the blanks below for your final answer. Round your answers to the nearest penny.
vekshin1

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option b is better because it would be 6 pounds cheaper than option a

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2 years ago
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If $850 is deducted each month for 12 months from your checking account to pay your mortgage, what impact will it have on your c
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14.3%

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