Adnan merges the shapes he added to mimic the bridge structure. The modification is shown below. On the left side are a small square above a long rectangle. An arrow points right to where the small square is positioned partly over the top of the rectangle, to look like a bridge pillar. Which tab did Adnan use to merge the shapes? Which Merge Shapes option did Adnan use? Which property of the shapes did Adnan modify?

Write a method named addall that could be placed inside the hashintset class. this method accepts another hashintset as a parameter and adds all elements from that set into the current set, if they are not already present. for example, if a set s1 contains [1, 2, 3] and another set s2 contains [1, 7, 3, 9], the call of s1.addall(s2); would change s1 to store [1, 2, 3, 7, 9] in some order. you are allowed to call methods on your set and/or the other set. do not modify the set passed in. this method should run in o(n) time where n is the number of elements in the parameter set passed in.

If an improvement creates no significant change in a product’s performance, then it is a(n) ? a0 design improvement. (there are no answer choices)

Avariable definition defines the name of a variable that will be used in a program, as well as