MATHEMATICS HIGH SCHOOL

Doug bought a new car for $25,000. He estimates his car will depreciate, or lose value, at a rate of 20% per year. The value of his car is modeled by the equation V = P(1 – r)t, where V is the value of the car, P is the price he paid, r is the annual rate of depreciation, and t is the number of years he has owned the car. According to the model, what will be the approximate value of his car after mc013-1.jpg years?$2,500
$9,159
$22,827
$23,802

Answers

Answer 1
Answer:

Answer:

The answer is : $9,159

Step-by-step explanation:

Doug bought a new car for $25,000. He estimates his car will depreciate, or lose value, at a rate of 20% per year.

Given equation is:

V=P(1-r)^(t)

P = $25000

r = 20% or 0.20

t = 4.5 years

So, equation becomes:

25000(1-0.20)^(4.5)

= 25000(0.80)^(4.5)

= $9159

Therefore, the approximate value of the car will be $9159.
Answer 2
Answer: The equation should be v = p(1-r)^t

then v = 25000(1-0.20)^4.5

v = 9,159

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The air quality index, or AQI, measures how polluted the air is in your city and assigns a number based on the quality of the air. Over 100 is unhealthy. . . Given the following quadratic regression equation, estimate the number of days the AQI exceeded 100 in the year 1988. . . n = 1.76t^2 - 13.32t + 41.00. (let t represent the number of years since 1990. therefore, t = 0 corresponds the year 1990. round to the nearest whole day.). . A. 60 days. B. 75 days. C. 61 days. D. 21 days

Answers

There are several information's already given in the question. The answer to the question can be easily deduced using those given information's. 

From the given question we come to know that
t = -2
Then
n = 1.76t^2 - 13.32t + 41.00
   = [1.76 * (-2)^2] - [13.32 * (-2) + 41
   = 7.04 - ( - 26.64) + 41
   = 7.04 + 26.64 + 41
   = 74.68
   = 75
From the above deduction, we can conclude that the correct option among all the options that are given in the question is the second option or option "B".

Answer:

b. 75 days

Step-by-step explanation:

a jar of cookies contains 18 different types of cookies. Each type is equally likely to be chosen. Based on your simulation, how many times must a cookie be chosen in order to get each type?

Answers

Answer:

Number of Cookies in the jar =18={A,B,C.......,...P,Q,R}

It is given that, each type is equally likely to be chosen.

Probability of an event

                 =\frac{\text{Total favorable outcome}}{\text{Total possible outcome}}

Probability of Getting any of the cookies out of 18 cookies

                           =(1)/(18)

When number of outcomes increases , probability of getting each type of cookie will be Higher.

So, there are 18 cookies , when number of each type of cookie will be

=18 × 18

=324 cookies ,means each distinct single cookie is available in 18  containers, means that is there is total of 324 containers.

So, out of 324 containers each cookie must be chosen 18 times.
1/18th of a chance each time you draw. But it really depends on how many are in the jar. I'd say 18.

What is the product of 7/16, 4/3, and 1/2?A. 7/24
B. 213/48
C. 7/12
D. 21/32
Please explain how you get the answer. ;)

Answers

Multiply all numerators.
7*4*1=28
Now multiply all denominators
16*3*2=96
Now reduce it down.  Simplify.
Both can be divided by 4
28/4=7
96/4=24

A is the answer.

5
What is shape of base?
Name the shape:

Answers

Answer:

pentagon

Step-by-step explanation: pentagon has 5 sides so the base is 5 and pentagon

Answer:

sine

Step-by-step explanation:

https://quizizz

.com/admin/quiz/58b03b8967e5cbbb47f236d7/trig-ratios

Which expression has a value of 15 when

Answers

The expression has a value of 15 when you divide by 2.

Answer:

thx

Step-by-step explanation:

In a random sample of 75 individuals, 52 people said they prefer coffee to tea. 99.7% of the population mean is between 84/80/74 % and 64/58/54%. (Choose the option closest to your answer.)

Answers

Could you please elaborate further on this question? I think there should be something missing, most likely.

Considering that you're asking a question about the coffee or tea preference people.

But generally the majority of people who prefer something will be between the 84/80/74 % of the mean because these numbers denote a bigger percentage of the diference of the mean. This means they include a bigger amount of people. 
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