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3 years ago

13

....??help??............

2 answers:

Maslowich3 years ago

3 0

The answer is A 6.14 ft

Lyrx [107]3 years ago

3 0

How do we find circumference? Well, it diameter times pi right? So, all we have to do is go backwards! Let's divide 19.27 by 3.14. This gives us 6.13694...blah! Since that is not an answer choice, round it to 6.14 ft. SO the answer is A. 6.14 ft!
Hope this helped!

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3 years ago

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Alborosie

(x-6)(x+2)

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After you do this you then add like terms to get x^2-4x-12
Therefore the answer (x-6)(x+2) is correct.

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Darren invests $4,500 into an account that earns 5% annual interests. How much will be in the account after 10 years if the inte

Tom [10]

We have been given that Darren invests $4,500 into an account that earns 5% annual interests. We are asked to find the amount in his account after 10 years, if the interest rate is compounded annually, quarterly, monthly, or daily.

We will use compound interest formula to solve our given problem.

$A=P(1+\frac{r}{n})^{nt}$ , where,

A = Final amount,

P = Principal amount,

r = Annual interest rate in decimal form,

n = Number of times interest is compounded per year,

t = Time in years.

$5\%=\frac{5}{100}=0.05$

When compounded annually, $n=1$ :

$A=4500(1+\frac{0.05}{1})^{1\cdot 10}$

$A=4500(1.05)^{10}$

$A=4500(1.6288946267774414)$

$A=7330.025820498\approx 7330.03$

When compounded quarterly, $n=4$ :

$A=4500(1+\frac{0.05}{4})^{4\cdot 10}$

$A=4500(1.0125)^{40}$

$A=4500(1.6436194634870132)$

$A=7396.28758569\approx 7396.29$

When compounded monthly, $n=12$ :

$A=4500(1+\frac{0.05}{12})^{12\cdot 10}$

$A=4500(1.00416666)^{120}$

$A=4500(1.64700949769)$

$A=7411.542739605\approx 7411.54$

When compounded daily, $n=365$ :

$A=4500(1+\frac{0.05}{365})^{365\cdot 10}$

$A=4500(1.0001369863013699)^{3650}$

$A=4500(1.6486648137656943695)$

$A=7418.9916619456\approx 7419.00$

Since amount earned will be maximum, when interest is compounded daily, therefore, Darren should use compounded daily interest rate.

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marin [14]

Yes, i believe so because u can count back twice and u will get 5. You could al so do: 7-2=5. Hope this helps

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