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- Lines of code can only be added inbetween gery lines of code. ie, lines 12-14.PHP Write a matchSSN function Write a function matchSSN($str) that takes a string representing a social security number as a parameter. The function should return true if the SSN is valid, and false if it is not. An SSN consists of 9 digits that are sometimes, but not always, separated by dashes between the 3rd and 4th digits and between the 5th and 6th digits (e.g. 123-45-6789). Use regular expressions in your solution (e.g. preg_match).Let L= {w€ (a,b.c)": na(w) = 1, ne(w) = 1] Which of the following NFAS accepts L? a) 93 q4 q5 96 b) q2 90 94 95 a q0 q1 q2
- • L₂ = {w = {a,b,c}* | w = b(a\b \cb)*a}le.com/forms/d/e/1FAlpQLSc6PlhZGOLJ4LOHo5cCGEf9HDChfQ-tT1bES-BKgkKu44eEnw/formResponse The following iterative sequence is defined for the set of positive integers: Sn/2 3n +1 ifn is odd if n is even Un = Using the rule above and starting with 13, we generate the following sequence: 13 u13 = 40 u40 =20 u20 = 10→ u10 =5 u5 = 16 u16 = 8 ug = 4 → Us =2 u2 =1. It can be seen that this sequence (starting at 13 and finishing at 1) contains 10 terms. The below function takes as input an integer n and returns the number of terms generated by the sequence starting at n. function i-Seq (n) u=n; i=%3; while u =1 if statement 1 u=u/2; else statement 2 end i=i+1; end statement 1 and statement 2 should be replaced by: None of the choices statement 1 is "mod(u,2)=D%3D0" and statement 2 is "u = 3*u+1;" statement 1 is "u%2" and statement 2 is "u = 3*u+1;" O statement 1 is "mod(n,2)=30" and statement 2 is "u = 3*n+1;"Ex: Let A1 ={x, y}, A2 ={1, 2}, and A3 ={a, b}, Find A1 × A2, (A1 × A2) × A3, A1 × A2 × A3.
- In python, wihtout using (replace, find, index) insert_substrings_into_string(s, substrs): This function takes a string s and a string substrs. The substrs string will contain 0 or more comma-separated substrings. The string s will contain text with 0 or more special placeholder character sequences. These placeholder character sequences will always begin with the percent character %, followed by one or more digits. The function will create a new string from the original string s where all the placeholder character sequences in s are replaced by the substrings in the string substrs. The placeholder %0 should be replaced by the first substring in substrs (i.e., everything before the first comma, if such a comma exists). The placeholder %1 should be replaced by the second substring in substrs (i.e., everything between the first and second comma, if such a comma exists), and so on. The new string should then be returned. Note: If a placeholder sequence refers to an invalid index (e.g., %10…you are working as a freelancer. A company approached you and asked to create an algorithm for username validation. The company said that the username is string S.You have to determine of the username is valid according to the following rules. 1.The length of the username should be between 4 and 25 character (inclusive). 2.Valid username must start with a letter. 3 Valid username can only contain letters, numbers, and underscores characters. 4 Valid username cannot ends with the underscore character and also doesn't accept the special characters. INPUT: The first line contains an integer T representing the number of test cases. The first line of each test cases input contains a string. OUTPUT: Each test case gives a Boolean value as output(true or false) sample Input: google Google_123 google@123 sampleOutput true true false sample input 2 HelloPython #Coder Coderlt sampleoutput 2 true false trueReplace all the 0 (Zero) digits in your ID by 4. Example: If your ID is 382200448 , it becomes 382244448 Take the first 6 digits and substitute them in this expression (( A + B) / C) * ((D-E)/F)-2) according to the following table; [1 mark] Letter Replace by Digit Example Digit A 1st 3 B 2nd 8 C 3rd 2 D 4th 2 E 5th 4 F 6th 4 After substitution your expression ? Draw a rooted tree that represents your expression. [3 marks] What is the prefix form of this expression. [3 marks] What is the value of the prefix expression obtained in step 2 above? [3 marks]
- In Python Create a program that reads a full name as a single string, and and uses the split creates a username with the following rules: The first character of the username is the first character of the first name. The second character of the username is the first letter of the middle name, if one was provided. The rest of the characters will be a prefix of the last name, long enough to meet the length requirement. The username can have up to 8 characters only, and in lowercase.Coronavirus disease (COVID-19) is an infectious disease caused by a newly discovered coronavirus. Most people who fall sick with COVID-19 will experience mild to moderate symptoms and recover without special treatment. Create a new program which will analyse Covid-19 case in Malaysia based on a state daily. The user must enter the state (such as Sabah) and number of districts of covid-19 reading. Every day, each district will only update the total of new cases two times. Daily cases are the total of report update daily. To record the data, the system is developing according to specification below: Read number of district, representing the size of array, Read the name of district. i. i. ii. Read total new cases in each update The report must include the following process: i. Calculate and view total cases daily for each district Find the average of new cases in that state. Calculate the frequency of new cases. iv. i. ii. Determine total new cluster based on this criterion below. green…Teacher ask different version of this code please provide that '''Problem A DNA: CG PairsPurpose:This function will take as an argument a string containing a dna strand Parameter(s):dnaReturn Value: fraction of dinucleotides ''' def cg_pairs(dna): dna_simple = 'AGCTTTCATTCTGAC' dna= dna.lower() for i in range (0,len(dna)): if(dna[i]=='a'or dna[i]=='c'or dna[i]=='g' or dna[i]=='t' ): continue else: print("Error in DNA strand ") return 0.0 count = 0 for i in range(0,len(dna)-1): var = dna[i:i + 2] if(var=="cg"): count+=1 else: continue return (float(count/(len(dna)-1)