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MariettaO [177]
3 years ago
9

using compound interest, how long does it take to double a 1000 dollar investment that pays 6.5% annual interest, compounded mon

thly?​
Mathematics
1 answer:
KonstantinChe [14]3 years ago
3 0

Answer:

11 years approx

Step-by-step explanation:

Given data

P=$1000

A=2000

R=6.5%

T= ?

Calculate time, solve for t

t = ln(A/P) / r

substitute

t=ln(2000/1000)/0.065

t=ln(2)/0.065

t=0.693/0.065

t=10.66

Hence the time is 11 years approx

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Zina [86]

Answer:

(1,4)

Step-by-step explanation:

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How do we get to y=-\sqrt{x-1}+4 from there?

It has been reflected about the a-axis because of the - in front of the square root.

It has been shifted right 1 unit because of the -(1) in the square root.

It has been moved up 4 units because of the +4 outside the square root.

In general:

y=a(x-h)^2+k has the following transformations from the parent:

Moved right h units if h is positive.

Moved left h units if h is negative.

Moved up k units if k is positive.

Moved down k units if k is negative.

If a is positive, it has not been reflected.

If a is negative, it has been reflected about the x-axis.

a also tells us about the stretching factor.

The parent function has a starting point at (0,0).  Where does this point move on the new graph?

It new graphed was the parent function but reflected over x-axis and shifted right 1 unit and moved up 4 units.

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6 0
3 years ago
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The answer is 1.75 dollars for one

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The graph is shown below. 

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A sample survey interviews SRSs of 500 female college students and 550 male college students. Researchers want to determine whet
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Answer:

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Step-by-step explanation:

We are given that a sample survey interviews SRS of 500 female college students and 550 male college students. And Researchers want to determine whether there is a difference in the proportion of male and female college students who worked for pay last summer.

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Alternate Hypothesis, H_1 : p_1\neq p_2 {means there is a difference in the proportion of male and female college students who worked for pay last summer}

Now, since we know that results were statistically significant at the 1% level.

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From the options given it is sure that P-value is less than 1%,i.e.;

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Answer:

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Step-by-step explanation:

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