Ultimate Engineering Study Guide - Questions & Answers
Let X1=[1,0,2,-1] , X2=[-1,1,0,1] , and X3=[2,0,0,-2] and let W=Span{X1, X2 , X3}.Find an orthonormal basis for W.
(a) What is the probability that an integer between 1 and 10,000 has exactly three 5's and one 3? (b) How many ways are there to distribute 50 identical jelly beans among six children if each child must get at least one jelly bean? (c) How many ways are there to distribute 21 different toys among six children (Alex, Ella, Jacqueline, Kelly, Rob, Stephen), if two children gets 6 toys, three children get 2 toys and one child get 3 toys? (d) How many "words" can be formed by rearranging INQUIRING (3 I's, 2 N's, 1 Q, 1 U, 1 R, 1G) so that U does not immediately follow Q? (e) If a person owns 6 mutual funds (each with at least one stock), where (i) these mutual funds together have a total of 61 stocks and (ii) the largest fund is Zillow, what is (A) the smallest number of stocks in Zillow and (B) the largest number of stocks in Zillow?
You have 15 marbles and three jars labeled A, B, and C. How many ways can you put the marbles into the jars... a. if each marble is different? b. if each marble is the same? c. if each marble is the same and each jar must have at least two marbles? d. if each marble is the same but each jar can have at most 6 marbles? e. if you have 10 identical red marbles and 5 identical blue marbles? For each problem, display the final numerical answer and the equation(s) used to form the answer. Leave combinations, permutations, factorials, and exponents intact. Good example: C(6, 3) C(5, 2) = 10 Bad examples: 10 no equation C(6, 3)C(5, 2) no final answer 2010 = 10 did not leave combinations intact
A = [[12,17,49,61],[38,18,82,77],[83,53,12,10], [8,1,8,7],[3,8,2,7],[83,503,120,100],[3,3,2,0], [8,5,1,1]]. how many lists are there in array A? - no lists - 32 - 4 - 8
Draw an ER diagram to keep track data about college students, their academic advisors, the clubs they belong to. Use cardinality ratio and participation constraints to indicate the relationship constraints.a. Each student has a name, unique id, and a major, phone number, and address. Assume each student is assigned to one faculty as academic advisor and one advisor advises many students.b. Each faculty has a unique number, name, and office location. Student can belong to any number of clubs.c. A club has a unique name, budget, meeting day and meeting time. The club must have some student members in order to exist, and clubs can sponsor any number of activities.d. Each activity has a unique id, type, date, time, and location. Each activity is sponsored by exactly one club. Each club is moderated by one faculty. A faculty may moderate more than one clubs.