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-Dominant- [34]

2 years ago

8

a) pencil b) ink bottle c) polygon d) eye 3. Under which of the following can an operating system be classified? b) software c)

storage devices d) a) hardware

Computers and Technology

1 answer:

iogann1982 [59]2 years ago

5 0

Answer:

Software

Explanation:

An operating system is a type of software that manages the computer hardware and allocates resources to programs running on the machine.

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A short cut to save a file is

Vanyuwa [196]

Answer:

CTRL+S in most programs

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3 years ago

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

In basic network scanning, ICMP Echo Requests (type 8) are sent to host computers from the attacker, who waits for which type of

Hoochie [10]

Answer:

d. ICMP Echo Reply (type 0)

Explanation:

ICMP or internet control message protocol is an Internet layer protocol in the TCP/IP suite. It works together with routing devices like the router to send messages based on results sensed in the network.

The RFC 1122 has stated that the ICMP server and end user application be configured or installed in user devices, for receiving and sending ICMP echo request packets and reply. The process is called pinging.

For an attacker to implement ping of ping, he needs to confirm if the target user in live by sending an ICMP echo request packet type 8, to receive an ICMP echo reply type0.

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3 years ago

HELP I WILL GIVVE BRAINLY AND 15 POINTS

levacccp [35]

Answer:

Because someone was hittting the space bar in the message instead of typing letters and numbers

Explanation:

Because they were bored or it was a glitch

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3 years ago

Which term means a cryptography mechanism that hides secret communications within various forms of data?.

andrezito [222]

Answer:

anything u have daling

Explanation:

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2 years ago