Some hackers are skillful computer operators, but others are younger inexperienced people who experienced hackers refer to as?

Sketch f(x) = 5x2 - 20 labelling any intercepts.

Norma-Jean [14]

Answer:

The graph of the function is attached below.

The x-intercepts will be: (2, 0), (-2, 0)

The y-intercept will be: (-20, 0)

Explanation:

Given the function

$f\left(x\right)\:=\:5x^2-\:20$

As we know that the x-intercept(s) can be obtained by setting the value y=0

so

$y=\:5x^2-\:20$

switching sides

$5x^2-20=0$

Add 20 to both sides

$5x^2-20+20=0+20$

$5x^2=20$

Dividing both sides by 5

$\frac{5x^2}{5}=\frac{20}{5}$

$x^2=4$

$\mathrm{For\:}x^2=f\left(a\right)\mathrm{\:the\:solutions\:are\:}x=\sqrt{f\left(a\right)},\:\:-\sqrt{f\left(a\right)}$

$x=\sqrt{4},\:x=-\sqrt{4}$

$x=2,\:x=-2$

so the x-intercepts will be: (2, 0), (-2, 0)

we also know that the y-intercept(s) can obtained by setting the value x=0

so

$y=\:5(0)^2-\:20$

$y=0-20$

$y=-20$

so the y-intercept will be: (-20, 0)

From the attached figure, all the intercepts are labeled.

8 0

3 years ago

How do you do these two questions? The first might have multiple answers and the second will have only one answer.

Svetlanka [38]

Answer:

1. Generally Linkedlist is used, but you can also use the queue. Hence both linked list are queue are correct options. However, treeset is sorted and hashset is not sorted, and hence we cannot make use of the treeset. Similarly the stack cannot as well be used as a Hashset.

2. D. Additional cells in the same hashset are examined and the index is incremented by a fixed value each time.

Explanation:

The 2 deals with the linear probing, and what is meant as option in 2 is what we know as linear probing in hashset, and we do have quadratic probing and double probing as well.

6 0

3 years ago

one business rule is that each project has one manager. Identify two (and no more than two) problems with the data structure or

Vinil7 [7]

Answer:

1. The data will not be tallying up - there will great variations and deviance.

2. There will be not enough data points

Explanation:

The management style, though it uses one manager, is not devoid of problems in the system. For example, there will be great difficulty in the collection of accurate data to properly define the system. This presents a great misinformation on the outcome of the data process. This is likely to be caused by the first factor that is the data having a lot of discrepancies. The discrepancy causes the data to be meaningless in terms of the trends displayed. In addition, the lack of enough points posses a challenge to the data collection and processing procedure. The data base management system can be used to concentrate data on a central point of reference.

3 0

3 years ago

Suppose that a database modification results in the execution of a trigger but that trigger generates another modification that

zhenek [66]

Answer:

The database can detect only system-defined events.

Explanation:

A trigger is like a stored procedure that Oracle Database invokes automatically whenever a specified event occurs.trigger is like a stored procedure that Oracle Database invokes automatically whenever a specified event occurs.

Both triggers and constraints can constrain data input, but they differ significantly.

A constraint applies to both existing and new data. For example, if a database column has a NOT NULL constraint, then its existing data is NOT NULL and no DML statement can violate the NOT NULL constraint.

A trigger applies only to new data. For example, a trigger can prevent a DML statement from inserting a NULL value into a database column, but the column might contain NULL values that were inserted into the column before the trigger was defined or while the trigger was disabled

5 0

4 years ago

Integrated circuits are made up of _____ and carry an electrical current

Rasek [7]

Answer:

integrated circuits are made up of Transistor and carry an electrical current

4 0

4 years ago