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solmaris [256]
3 years ago
10

What is the name for a model that you cannot touch but gives you a mental image of how something works? a. a physical model b. a

mathematical model c. a conceptual model d. a planning model
Mathematics
2 answers:
likoan [24]3 years ago
8 0
I think its C. conceptual model 
Goshia [24]3 years ago
8 0

Answer:

c. a conceptual model

Step-by-step explanation:

The conceptual model focuses on the highest level of abstraction and does not care to show the physical structure of an object, but rather an idea or concept that establishes a reference of how this object is or how that object works.

The conceptual model is the most natural form of the facts and are closer to the reality of the client environment. In the conceptual model the client must be involved in order to obtain the data collection that will support the construction of the entire model.

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Solve for x<br> 4(1 - x) + 2x = -3 (x + 1)
Blababa [14]

Answer:

x = -7

Step-by-step explanation:

4(1 - x) + 2x = -3 (x + 1)

4 - 4x + 2x = - 3x - 3

- 4x + 2x + 3x = - 3 - 4

x = -7

8 0
3 years ago
Find the solution set of the inequality:<br> -3x + 8 &lt; 15−3x+8&lt;15
makkiz [27]

Answer:

x=(8/3, infinity)

Step-by-step explanation:

-3x+8<15-3x+8

-3x+8<-3x+23

8<23

15-3x+8<15

23-3x<15

-3x<-8

x>8/3

Therefore, x=(8/3, infinity)

3 0
2 years ago
Write the following series in sigma notation.<br> 7 + 16 + 25 +34 +43 +52 + 61
Solnce55 [7]

The series 7 + 16 + 25 +34 +43 +52 + 61 is an illusration of arithmetic series

The sigma notation of the series is: \sum\limits^7_{n=1} {9n - 2}

<h3>How to write the series in sigma notation?</h3>

The series is given as:

7 + 16 + 25 +34 +43 +52 + 61

The above series is an arithmetic series, with the following parameters

  • First term, a = 7
  • Common difference, d = 9
  • Number of terms, n = 7

Start by calculating the nth term using:

a(n) = a + (n - 1) * d

This gives

a(n) = 7 + (n - 1) * 9

Evaluate the product

a(n) = 7  - 9 + 9n

Evaluate the difference

a(n) = 9n - 2

So, the sigma notation is:

\sum\limits^7_{n=1} {9n - 2}

Read more about arithmetic series at:

brainly.com/question/6561461

3 0
2 years ago
What is the value of X to the nearest tenth?
Dennis_Churaev [7]

The answer to your question is 21.5

8 0
3 years ago
D/dx(sin x/2+cos x) = (a + b cos x)/(2+cos x)^2 find a and b.​
Talja [164]

Answer:

a = 1 and b = 2

Step-by-step explanation:

Using the Quotient Rule>

d/dx[(sin x)/(2+cos x) ]

=   [(2 + cos x) * cosx -  sin x * - sin x)]  /  (2 + cos x)^2

= 2cos x + cos^2x + sin ^2 x) /  (2 + cos x)^2

But cos^2x + sin^2x = 1 so we have:

(1 +  2 cos x)  /   (2 + cos x)^2

- so a = 1 and b = 2.

7 0
3 years ago
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