Why do relational databases use primary keys and foreign keys?

Just a heads up these questions are relating to a program known as gimp. (these are all fill-in-the-blank)will give brainliest-! the tool option allows you to blur the edges of the selection making it look less sharp.which option do you choose in the add layer mask dialog box to turn your selection into a mask? is a type of filter that distorts a layer making it appear like you’re looking through dirty glass.in which drop-down menu do you find the option to add a blur to your background image layer? what shape appears when you’ve completed making your selection with the free select tool (to let you know you’ve reached the beginning of your selection)? when using the toggle quick mask, everything outside of the selection becomes a color.when painting with the color with the toggle quick mask on, it removes part of your selection making it smaller.when painting with the color with the toggle quick mask on, it adds to your selection making it larger.to use the paths tool, click and add (a tiny circle).to close your selection when using the paths tool, press and hold while clicking the first anchor point you created.the tool works just like the free select tool by clicking around an image to select it.

3. (6 pts) internally in the computer, with few exceptions, all numerical computation is done using binary numbers. output, however, often uses ascii, which is formed by appending 011 to the left of a bcd code. thus, an algorithm that directly converts a binary integer to a bcd integer is very useful. here is one such algorithm 1) draw lines to the left of the binary number to bound the expected bcd decades. (each decade is a group of 4 bits.) move the binary number one bit to the left. add 0011 to each bcd decade containing a binary value> 0100 repeat steps 2-3 until the last bit in the binary number has been moved into the least significant decade position. (note that when the last bit has been shifted into bcd decade, step 3 is not repeated.) read the bcd result. 2) 3) 4) 5) a) execute the algorithm for the binary number 1101101 b) execute the algorithm for the binary number 01110101110 4. (4 pts) represent the decimal number 3568 in bcd; excess-3 code; ascil; and hex.

What machine listens for http requests to come in to a website’s domain? a. a router b. a browser c. a server d. a uniform resource locator