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Mekhanik [1.2K]
3 years ago
15

NO JOKE 70 POINTS!!!!!!!! I WILL GIVE BRANLIEST AND RATE!!!! MATH EXPERTS COME HELP!!! AT LEAST TAKE A LOOK!!! LIKE WHERE ARE TH

E GENIUSES!!EASY I AM JUST DUMBREAD THIS AND THEN ANSWER THE QUESTION
READ THIS THEN ANSWER THE QUESTION:
There are so many items for sale in our world! Some of the items you can buy will appreciate in value. This means that as time passes, the value of the item increases. If you decide to sell the item at a later time, you should be able to sell it for more than you paid. Some common examples of items that appreciate in value include houses, stocks, and some types of art.
Other items you can buy will depreciate in value. This means that as time passes, the value of the item decreases. If you decide to sell the item at a later time, you will likely have to sell it for less than you paid for it. Cars, game systems, and jewelry are examples of items that usually depreciate as time passes. The majority of items that depreciate never reach a value of $0. Their worth attains some minimum, positive value that is greater than $0 and then their price stabilizes.
In 1981, IBM manufactured and sold one of the first personal computers. The machine was called the IBM Personal Computer (PC) 5150 and the full model retailed for $3,000. Similar to modern technology, the value of this item depreciated over time. The function that models how the PC 5150 depreciated as time passed is , where x is the number of years after 1981 and f(x) is the value of the PC 5150.


1. Evaluate the depreciation function at f(0). Show your work and use function notation as needed. What does this number represent?

2. Find the vertex of the depreciation function. What does this point represent in context of this problem? Show your work and explain your process.
Mathematics
2 answers:
german3 years ago
8 0

[just answering so you can give the other guy brainiest]

Rufina [12.5K]3 years ago
7 0

Answer:

The quadratic equation is f(x)=20x^{2} -400x +3000.

1. This number represents the amount of money it was sold for.

2. Vertex =(10,1000)

Step-by-step explanation:

This point represents the amount of money the computer was worth at its lowest point.

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Find the value of X to the nearest tenth. Thank you!!!
Greeley [361]

Answer:

84.5

Step-by-step explanation:

Use trig functions to find x. Trig functions are special relationships which exits between the sides of right triangles. Since you need to find x the hypotenuse and you have the adjacent side to 77 degree angle use cosine.

Cos 77 = 19/x

0.22495 = 19/x

19/0.22495 = x

84.5 = x


5 0
3 years ago
A marketing firm is studying consumer preferences for winter fashions in four different months. From a population of women, 18-2
Sliva [168]

Answer:

B) The sample size was 100

Step-by-step explanation:

Number of sample size in January = 100

Number of sample size in March   = 100

Number of sample size in June     = 100

Number of sample size in  September = 100

The average sample size for the study = (100 +100+100+100)/4  

                                                                =  400/4

                                                                = 100

So the average sample size for the study is 100 women between 18 to 21 years.

4 0
3 years ago
The graph of 4x+12y=8 and y=Mx+5 are perpendicular. What is the value of m
Komok [63]

Answer:

m=3

Step-by-step explanation:

we know that

If two lines are perpendicular, then their slopes are opposite reciprocal (the product of their slopes is equal to -1)

step 1

Find the slope of the given line

we have

4x+12y=8

isolate the variable y

12y=8-4x

y=\frac{2}{3}-\frac{1}{3}x

the slope of the given line is

m=-\frac{1}{3}

step 2

Find the slope m_2 of the perpendicular line to the given line

m_1*m_2=-1

m_1=-\frac{1}{3} ---> slope of the given line

(-\frac{1}{3})*m_2=-1

m_2=3

therefore

The value of m is

m=3

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Twenty divided by 60
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Answer:

1/3

Step-by-step explanation:

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