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vaieri [72.5K]
3 years ago
11

Tobie Invest $25 in a bank account where the interest is compounded at 4% every year. He makes no withdrawals or deposits. the f

ormula for compound interest is A(t)=P(1+i)^t
Part A :what are the principal and the interest rate ?
Part B : write a function that represents tobie’s account balance after t years
Mathematics
2 answers:
maria [59]3 years ago
8 0
$25 is the principal 4% is the interest rate, A(t)=25+1.04
nikitadnepr [17]3 years ago
3 0
The principal is $25 and the rate is 4%.

So after t years: A(t) = 25(1.04)^t
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BlackZzzverrR [31]

Answer:

d. (x+2)/(-x²-5)

Step-by-step explanation

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The function is undefined when x =  0.

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c. ƒ(x) = (6x - 5)/(x² - 7)

The function is undefined when x² - 7 = 0, i.e., when x = √7.

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4 0
3 years ago
The answer for number 6,7,8,9
zhuklara [117]
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230-18.84=211.16
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Step-by-step explanation:

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in our case

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= (4 ± sqrt(2×16))/2 = (4 ± 4×sqrt(2))/2 = 2 ± 2×sqrt(2)

x1 = 2 + 2×sqrt(2)

x2 = 2 - 2×sqrt(2)

6 0
2 years ago
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