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avanturin [10]
3 years ago
10

A major public university graduates approximately 10,000 students per year, and its development office has decided to build a We

b-based system that solicits and tracks donations from the university's large alumni body. Ultimately, the development officers hope to use the information in the system to better understand the alumni giving patterns so that they can improve giving rates.
Required:
a. What kind of system is this?
b. What different kinds of data will this system use?
c. On the basis of your answers, what kind of data storage format(s) do you recommend for this system?
Computers and Technology
1 answer:
CaHeK987 [17]3 years ago
8 0

Answer:

a) database system

b) Transaction and Alumni data

c) Database format ( table )

Explanation:

a) The kind of system that is described in this question is a database system because a web based system that is enabled for tracking should have saved the details of the members included in the system hence it has to be databased system

b) The different kinds of data that the system will use includes: Transaction data and Alumni data.

c) The kind of data format that would be recommended for this system is

The Database format, because of certain optimizations already inbuilt in a database system such as tables

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A continuous and differentiable function f(x) with the following properties: f(x) is decreasing at x=−5 f(x) has a local minimum
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The continuous and differentiable function where f(x) is decreasing at x = −5 f(x) has a local minimum at x = −2 f(x) has a local maximum at x = 2 is given as: y = 9x - (1/3)x³ + 3.

<h3>What is a continuous and differentiable function?</h3>

The continuous function differs from the differentiable function in that the curve obtained is a single unbroken curve in the continuous function.

In contrast, if a function has a derivative, it is said to be differentiable.

<h3>What is the solution to the problem above?</h3>

It is important to note that a function is differentiable when x is set to a if the function is continuous when x = a.

Given the parameters, we state that

f'(5) < 0; and

x = -5

The local minimum is given as:
x = -3;

the local maximum is given as

x = 3

Thus, x = -3 ; alternatively,

x = 3.  With this scenario, we can equate both to zero.

Hence,

x + 3 = 0;

3-x = 0.

To get y' we must multiply both equations to get:

y' = (3-x)(x + 3)

y'   = 3x + 9 - x² - 3x

Collect like terms to derive:

y' = 3x - 3x + 9 - x²; thus

y' = 9-x²

When y' is integrated, the result is

y = 9x - (x³/3) + c

Recall that

F (-5) < 0

This means that:

9 x -5 - (-5³/3) + c < 0
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⇒ -10/3 + c < 0

Collecting like terms we have:
c < 10/3; and

c < 3.33


Substituting C into

f(x) = 9x - x³/3 + c; we have

f(x) = 9x - x³/3 + 3, which is the same as  y = 9x - (1/3)x³ + 3.

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