A chain letter starts when a person sends a letter to five others. Each person who receives the letter either sends it to five other people who have never received it o does not send it to anyone. Suppose that 10,000 people send out the letter before the chain ends and that no one receives more than one letter. How many people receive the letter, and how many do not send it out? O 40,001 O 49,999 O 10,000 O 50,001

Extrapolation is an estimation of a value based on extending a known sequence of values or facts beyond the area that is certainly known. Interpolation is an estimation of a value within two known values in a sequence of values. Select one: True False 24°C e here to search EHEB F8 F9 F10 F4 F5 F6 F7 F2 F3 Ca

For the following NFA M. 1 start 90 qi q2 From the list below, select all computations of M on the string 100. O go → go q1 → 92 92 qo → qo → q1 → q1 q0 → q0 → qi → q1 → q2

There are m towns in a straight line, with a road joining each pair of consecutive towns. Legends say that an ordinary person in one of these towns will become a hero by completing a sequence of n quests. The first quest will be completed in their home town, but after each quest they may complete their next quest either in the same town or after moving to a neighbouring town.For example, if n = 5 and m = 4, a resident of town 2 may become a hero as follows:• begin in town 2 for quest 1,• then move to town 3 for quest 2,• stay in town 3 for quest 3,• return to town 2 for quest 4, and• move to town 1 for quest 5.Design an algorithm which runs in O(nm) time and finds the total number of waysto complete n quests.

The function f is defined for non-negative integers a and b recursively as follows:f(a, b) ={0     if                                   a = 0 or                      b = 0f(a − 1, b − 1) + 2a − 1       if a = bf(a − b, b) + f(b, b)              if a > bf(a, a) + f(b − a, a)               if a < b}Compute f (3, 2) by drawing a recursion tree showing all of the computationrequired and then use your tree to compute the answer.

The values of x and y should be swapped. Does the following algorithm work?