For the following BNF grammar rules, answer the questions that follow. ::=
::= ; | ;
::= =
::= a | b | c | d
::= |
::= | const
::= + | - | * | \ | %

Required:
a. Is this grammar ambiguous?
b. If this grammar is ambiguous, re-write the rules to remove the ambiguity such that:

a. You do not add any new grammar rules
b. You only change 1 nonterminal within 1 grammar rule.
c. Any previously valid sentence continues to be valid.

If the grammar is not ambiguous, re-write the rules as is from above with no changes.

Write a method that takes in an array of point2d objects, and then analyzes the dataset to find points that are close together. be sure to review the point2d api. in your method, if the distance between any pair of points is less than 10, display the distance and the (x,y)s of each point. for example, "the distance between (3,5) and (8,9) is 6.40312." the complete api for the point2d adt may be viewed at ~pf/sedgewick-wayne/algs4/documentation/point2d.html (links to an external site.)links to an external site.. try to write your program directly from the api - do not review the adt's source code.

Which statement is true of web-based social media? a.they allow consumers to interact with and update content. b.they cannot be updated easily, as compared to print media. c.they are expensive to produce and maintain, as compared to print and television. d.they can exist independent of the internet.

You work in the accounting department and have been using a network drive to post excel workbook files to your file server as you complete them. when you attempt to save a workbook file to the drive, you see the error message: “you do not have access to the folder ‘j: \’. see your administrator for access to this folder.” what should you do first