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3 years ago

7

What is the value after 7 years of 2014 Ford Mustang that originally cost $25,000 if it depreciates at a rate of 8% per year rou

nd your answer to the nearest dollar

2 answers:

insens350 [35]3 years ago

5 0

Answer:

The answers is 14000 when rounded

Step-by-step

NemiM [27]3 years ago

4 0

I believe the answer is 11000

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Landon is entering the science fair. He has a budget of $115. He has spent 20% of the money on new materials. How much does Land

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92 dollars because 20 percent is 23 dollars so the answer is 92 dollars

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3 years ago

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Can someone please help me with this similar area question? I have the answer but I’m not sure how to get to it. Will make brain

Mumz [18]

Step-by-step explanation:

well there is a very simple point that you have mistaken tho:

484cm², 25cm²

Areas are defined in square cm but the radius is in cm

so:

$\sqrt{ \frac{484 {cm}^{2} }{25 {cm}^{2} } } = \frac{7.92}{r} = = = > 4.4 = \frac{7.92cm}{x} = = > x = \frac{7.92cm}{4.4} = x = 1.8cm$

and there you go

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2 years ago

The slope of the line below is 3. Use the coordinates of the labeled point to

Vinvika [58]

Answer:

$y = 8+3x$

Step-by-step explanation:

Remember that the equation of the line is

$y-y_0 = m*(x-x_0)$

in this case we have

$y-8 = 3(x-0)$

that is because

$y_0 = 8, x_0 = 8 , m = 3$

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3 years ago

A student wanted to construct a 95% confidence interval for the average age of students in her statistics class. She randomly se

Darina [25.2K]

Answer: (17.42, 20.78)

Step-by-step explanation:

As per given , we have

Sample size : n= 9

$\overline{x}=19.1$ years

Population standard deviation is not given , so it follows t-distribution.

Sample standard deviation : s= 1.5 years

Confidence level : 99% or 0.99

Significance level : $\alpha= 1-0.99=0.01$

Degree of freedom : df= 8 (∵df =n-1)

Critical value : $t_c=t_{(\alpha/2,\ df)}=t_{0.005,\ 8}= 3.355$

The 99% confidence interval for the population mean would be :-

$\overline{x}\pm t_c\dfrac{s}{\sqrt{n}}$

$19.1\pm (3.355)\dfrac{1.5}{\sqrt{ 9}}\\\\=19.1\pm1.6775\\\\=(19.1-1.6775,\ 19.1+1.6775)\\\\=(17.4225,\ 20.7775)\approx(17.42,\ 20.78)$

Hence, the 99% confidence interval for the population mean is (17.42, 20.78) .

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3 years ago

10) The scale of a map is 1 inch represents 4 miles. How many miles does 0.5 inches represent?

scoundrel [369]

Answer:

2 miles

Step-by-step explanation:

1 in=4miles

0.5 in=2miles

so divide by two on each side

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3 years ago

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