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lubasha [3.4K]
3 years ago
7

Sam bought a car for $25,000 in 2009. Since then the car has depreciated in value by $1,500 a year. Write a function that will a

llow you to calculate how much the car will be worth in 5 years if we let it 2009 be t=0
Mathematics
1 answer:
lesantik [10]3 years ago
7 0

Answer: The car has a value of $17,500.

Explanation: The car was originally bought at $25,000 and was depreciated over 5 years by $1,500 a year. Over 5 years, the car would be depreciated by a total of $7,500 because $1,500 x 5 years equals $7,500 in total. Since you would distract the total depreciation cost from the original value to find the current value of the car, after 5 year of use, the car would be worth $17,500.

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A forester studying the effects of fertilization on certain pine forests in the Southeast is interested in estimating the averag
ahrayia [7]

Answer:

P(-2 \leq \bar X -\mu \leq 2)

If we divide both sides by \frac{\sigma}{\sqrt{n}} we got:

P(\frac{-2}{\frac{4}{\sqrt{9}}}\leq Z \leq \frac{2}{\frac{4}{\sqrt{9}}})

And we can use the normal distribution table or excel to find the probabilites and we got:

P(-1.5 \leq Z \leq 1.5)= P(ZStep-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the area of a population, and for this case we know the distribution for X is given by:

X \sim N(M,4)  

Where \mu=M and \sigma=4

We select a a sample of n =4 and since the distribution for X is normal then we know that the distribution for the sample mean \bar X is given by:

\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})

And we want to find this probability:

P(-2 \leq \bar X -\mu \leq 2)

If we divide both sides by \frac{\sigma}{\sqrt{n}} we got:

P(\frac{-2}{\frac{4}{\sqrt{9}}}\leq Z \leq \frac{2}{\frac{4}{\sqrt{9}}})

And we can use the normal distribution table or excel to find the probabilites and we got:

P(-1.5 \leq Z \leq 1.5)= P(Z

8 0
3 years ago
Suppose a triangle has sides a, b, and c, and let theta be the angle opposite the side of length a. If cos theta > 0 what mus
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I think the answer is d or b if im wrong sorry hope this helped tho :p
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3 years ago
Read 2 more answers
Help me out please <3
Fynjy0 [20]

Answer: you could do store A is $8 per hour, and thirteen $13 per day, store B can be $3 per hour, $18 per day

I'm not too confedent but I'm still happy to help!

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How to calculate the are of a pentagon?
ale4655 [162]

Sort the pentagon into 5 triangles and then solve for each one

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Translate The quotient of a number b and 7 is less than 23.
pentagon [3]

Answer:

Step-by-step explanation:

b/7<23

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3 years ago
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