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Tanya [424]
2 years ago
8

Using the values from the graph, compute the values for the terms given in the problem. Choose the correct answer. Age of car =

7 years. Original cost = $23,500. The cost of maintenance and repairs is $ .

Mathematics
2 answers:
Elenna [48]2 years ago
6 0

Answer:

The cost of maintenance and repairs is $235

Step-by-step explanation:

step 1

Find the market values of car for age of car equal to 7 year

Observing the graph

The percentage of market value is 10%

so

10%=10/100=0.10

The market value is equal to

$23,500*0.10=$2,350

step 2

Find the cost of maintenance and repairs for age of car equal to 7 year

Observing the graph

The percentage of maintenance and repairs of car's value is 10%

so

10%=10/100=0.10

The cost of maintenance and repairs is

$2,350*0.10=$235

MariettaO [177]2 years ago
6 0

Answer:

$211.5

Step-by-step explanation:

Given information: Age of car = 7 years. Original cost = $23,500.

In the given graph it is clear that the solid line represents the percentage of market value of car and dashed line represents the maintenance and repair costs percentage of car's value.

From the given graph it is clear that, at age 7 year

Percentage of market value of car = 9%

Maintenance and repair costs percentage of car's value = 10%

At the age of 7 years, the value of car is 9% of original cost.

Value of car  = \frac{9}{100}\times 23,500=2115

The cost of maintenance and repairs is 10% of 2115.

The cost of maintenance and repairs = \frac{10}{100}\times 2115=211.5

Therefore, the cost of maintenance and repairs is $211.5.

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Answer:

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Step-by-step explanation:

Here, we want to know the temperature after 9 hours

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y intercept (0,6) b = 6
equation
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answer
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ΔXYZ was dilated, then _____________, to create ΔQAG.
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According to a study conducted by the Toronto-based social media analytics firm Sysomos, 71% of all tweets get no reaction. That
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Answer:

Let X the random variable of interest "number of tweets with no reaction", on this case we now that:

X \sim Binom(n=100, p=0.71)

And the expected value is given by:

E(X) = np =100*0.71 = 71

So we expect about 71 tweets with no reaction for this case.

Step-by-step explanation:

Previous concepts

A Bernoulli trial is "a random experiment with exactly two possible outcomes, "success" and "failure", in which the probability of success is the same every time the experiment is conducted". And this experiment is a particular case of the binomial experiment.

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

The probability mass function for the Binomial distribution is given as:  

P(X)=(nCx)(p)^x (1-p)^{n-x}  

Where (nCx) means combinatory and it's given by this formula:  

nCx=\frac{n!}{(n-x)! x!}  

Solution to the problem

Let X the random variable of interest "number of tweets with no reaction", on this case we now that:

X \sim Binom(n=100, p=0.71)

And the expected value is given by:

E(X) = np =100*0.71 = 71

So we expect about 71 tweets with no reaction for this case.

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