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Vesna [10]
3 years ago
14

why does a computer only need to use the colors red, green, and blue to display any image? please give reasonable answers

Computers and Technology
1 answer:
Bezzdna [24]3 years ago
8 0

the human eye has 3 cones (red, green and blue)

Explanation:

if you mix each color very precisely on a screen, you can simulate different colors that trick the eyes into thinking they are seeing something else.

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6
Mama L [17]

Answer:

=IF(D3>50; E3; F3) and =IF(A1>60;"Pass";"Fail") are valid IF formulas.

Explanation:

P.S - The exact question is -

To find - Select the correct answer from each drop-down menu. Which IF formulas are valid? _____ and _____ are valid IF formulas.

FIRST BLANK

=IF(D3>50; E3; F3)

=IF(D3>50);( E3; F3)

=IF(10<5;23);("Incorrect")

SECOND BLANK

=IF(A1>60;"Pass";"Fail")

=IF(A1>60); ("Pass"; "Fail")

=IF(A1>60; ("Pass"; "Fail"))

Solution -

An IF structure is built following this pattern:

IF(TEST;IF TRUE;IF FALSE)

So,

The correct option is -

=IF(D3>50; E3; F3) and =IF(A1>60;"Pass";"Fail") are valid IF formulas.

7 0
3 years ago
Major findings of evolution of computers
Elis [28]

Answer:

twitt

Explanation:

3 0
3 years ago
In a _____ network, each device on the network is attached to a central router. If the router fails, then the other devices will
Damm [24]

Answer:

In a STAR TOPOLOGY network, each device on the network is attached to a central router. If the router fails, then the other devices will be unable to communicate, but if only one connected device fails, then all other devices will still be able to communicate.

Explanation:

In this type of topology all the computers are connected to a single router through a cable. This router is the central node and all others nodes are connected to the central node.

7 0
3 years ago
what is the largest possible number of internal nodes in a redblack tree with black height k? what is the smallest possiblenumbe
Elina [12.6K]

Answer:

A Red Black Tree is a type of self-balancing(BST) in this tree ,each node is red or black colored. The red black tree meets all the properties of the binary search tree, but some additional properties have been added to a Red Black Tree.

A Red-Black tree's height is O(Logn) where (n is the tree's amount of nodes).

In a red-black tree with black height k

The maximum number of internal nodes is 2^{2k} -1.

The smallest possible number is 2^{k} -1.

7 0
3 years ago
A file that is 242 megabytes is being downloaded. if the download is 15.4% complete, how many megabytes have been downloaded? ro
Lunna [17]
37.26 megabytes have been downloaded
5 0
3 years ago
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