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Discrete Math Practice Quizzes 1-3, Quizzes of Discrete Mathematics

University of the PotomacDiscrete Mathematics

Weeks 1 through 3's practice quizzes.

Typology: Quizzes

2020/2021

Uploaded on 01/07/2026

elna-keller
elna-keller 🇺🇸

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Quizzes 4-6
Started on Wednesday, 24 February 2021, 9:03 PM
State Finished
Completed on Wednesday, 24 February 2021, 9:16 PM
Time taken 13 mins 8 secs
Grade 8.00out of 10.00 (80%)
Question1
Incorrect
Mark 0.00 out of 1.00
Flag question
Question text
Consider the Formula . Which of the following is true?
Select one:
a. is the index over which the expression behind the gets summed, starting with and ending
with
b. is the index over which the expression behind the gets summed, starting with and ending
with
c. is the index over which the expression behind the gets summed, starting with and ending
with
d. is the index over which the expression behind the gets summed, starting with and ending
with
e. is the index over which the expression behind the gets summed, starting with and ending
with
Feedback
The correct answer is: is the index over which the expression behind the gets summed, starting
with and ending with
Question2
Correct
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Partial preview of the text

Download Discrete Math Practice Quizzes 1-3 and more Quizzes Discrete Mathematics in PDF only on Docsity!

Quizzes 4-

Started on Wednesday, 24 February 2021, 9:03 PM

State Finished

Completed on Wednesday, 24 February 2021, 9:16 PM

Time taken 13 mins 8 secs

Grade 8.00 out of 10.00 ( 80 %)

Question 1

Incorrect Mark 0.00 out of 1. Flag question Question text

Consider the Formula. Which of the following is true?

Select one: a. is the index over which the expression behind the gets summed, starting with and ending with b. is the index over which the expression behind the gets summed, starting with and ending with c. is the index over which the expression behind the gets summed, starting with and ending with d. is the index over which the expression behind the gets summed, starting with and ending with e. is the index over which the expression behind the gets summed, starting with and ending with Feedback The correct answer is: is the index over which the expression behind the gets summed, starting with and ending with

Question 2

Correct

Mark 1.00 out of 1. Flag question Question text

Let 100110101 be a number from the binary system with the digits being. If

we calculate this number into the decimal system, the result is 309.

What formula can be used to do this kind of calculation?

Select one: a. b. c. d. e. Feedback The correct answer is:

Question 3

Correct Mark 1.00 out of 1. Flag question Question text

Evaluate

Select one: a. 120 b. 125 c. 130 d. 140

c. 35 d. 50 e. 52 Feedback The correct answer is: 35

Question 6

Correct Mark 1.00 out of 1. Flag question Question text

Which of the following can always be divided by 8, no matter what (positive) value has?

Select one: a. b. c. d. Feedback The correct answer is:

Question 7

Correct Mark 1.00 out of 1. Flag question Question text

Let 100110101 be a number from the binary system with the digits being. If

we calculate this number into the decimal system, the result is 309.

What formula can be used to do this kind of calculation?

Select one: a. b. c. d. e. Feedback The correct answer is:

Question 8

Correct Mark 1.00 out of 1. Flag question Question text

What is the result of the sum?

Select one: a. b. c. d. The sum diverges to an undefined number. e. Feedback The correct answer is: The sum diverges to an undefined number.

Question 9

Incorrect Mark 0.00 out of 1. Flag question

State Finished

Completed on Wednesday, 24 February 2021, 9:24 PM

Time taken 8 mins 17 secs

Grade 6.00 out of 10.00 ( 60 %)

Question 1

Correct Mark 1.00 out of 1. Flag question Question text

Use notation to write the infinite sum. Hint: the symbol

means here that the sum continues with both plus and minus as operators.

Select one: a. b. c. d. e. Feedback The correct answer is:

Question 2

Incorrect Mark 0.00 out of 1. Flag question

Question text

You put a rice corn on the first field of a chess board, two on the second field, four on the

third field, eight on the fourth field, and so on. How many rice corns do you need to fill the

chess board?

Select one: a. b. c. d. e. Feedback The correct answer is:

Question 3

Incorrect Mark 0.00 out of 1. Flag question Question text

What is the closed form of the series:?

Select one: a. b. c. d. Feedback The correct answer is:

Question 4

Correct Mark 1.00 out of 1.

Question 6

Correct Mark 1.00 out of 1. Flag question Question text

Evaluate.

Select one: a. 10 b. 96 c. 100 d. 128 e. 256 Feedback The correct answer is: 100

Question 7

Correct Mark 1.00 out of 1. Flag question Question text

Express the following sum using sigma notation:

Select one: a. b. c. d. e.

Feedback The correct answer is:

Question 8

Incorrect Mark 0.00 out of 1. Flag question Question text

notation to write the sum:

Select one: a. b. c. d. e. Feedback The correct answer is:

Question 9

Correct Mark 1.00 out of 1. Flag question Question text

Evaluate.

Select one: a. 1 b. 9 c. 12

Question 1

Correct Mark 1.00 out of 1. Flag question Question text

What does "Recursion" mean?

Select one: a. Defining something recursive means it is infinite. b. The application of a function/definition to its own values. c. Defining a function or set in such a way that it has finite and well defined values/elements. d. Recursive functions usually produce an error, for example a division by zero. e. Recursion means the result is always one. Feedback Your answer is correct. The correct answer is: The application of a function/definition to its own values.

Question 2

Incorrect Mark 0.00 out of 1. Flag question Question text

Let with and. What is the solution to this recursive

equation?

Select one: a. b. c. d.

e. Feedback Your answer is incorrect. The correct answer is:

Question 3

Correct Mark 1.00 out of 1. Flag question Question text

Consider the formula. What is the result?

Select one: a. b. c. d. e. Feedback Your answer is correct. The correct answer is:

Question 4

Incorrect Mark 0.00 out of 1. Flag question Question text

Let , with the starting value. What is the solution of this

recurrence relation?

Flag question Question text

Which one of the following is a solution of the recurrence relation

with?

Select one: a. b. c. d. e. Feedback Your answer is incorrect. The correct answer is:

Question 7

Incorrect Mark 0.00 out of 1. Flag question Question text

If a recurrence relation has the characteristic equation

then which one of the following is the correct form of the general solution of?

Select one: a. b. c. d. e.

Feedback Your answer is incorrect. The correct answer is:

Question 8

Incorrect Mark 0.00 out of 1. Flag question Question text

Let and for all.

Which one of the following is the correct value of?

Select one: a. 5 b. 9 c. 4 d. 21 e. 1 Feedback Your answer is incorrect. The correct answer is: 9

Question 9

Correct Mark 1.00 out of 1. Flag question Question text

Let with starting values of and. What is the

solution to this recurrence relation?

Select one:

Time taken 5 mins 37 secs Grade 3.00 out of 10.00 ( 30 %)

Question 1

Incorrect Mark 0.00 out of 1. Flag question Question text

If a recurrence relation has the characteristic

equation , then which one of the following is the general

solution.

Select one: a. b. c. d. e. Feedback Your answer is incorrect. The correct answer is:

Question 2

Incorrect Mark 0.00 out of 1. Flag question Question text

Let with starting values of. What is the solution to this recurrence

relation?

Select one: a. It has no solution. b. c. d. e. Feedback Your answer is incorrect. The correct answer is:

Question 3

Correct Mark 1.00 out of 1. Flag question Question text

What property does the Fibonacci Sequence have?

Select one: a. It doubles in value every 5 numbers and then becomes infinite rather quickly. b. At some point it becomes 0 and then stops. c. It adds the two previous numbers of a sequence together, and continues forever. d. It is undecided if the Fibonacci Sequence stops or not. e. It multiplies the two previous values of a sequence with each other, and continues forever. Feedback Your answer is correct. The correct answer is: It adds the two previous numbers of a sequence together, and continues forever.

Question 4

Incorrect Mark 0.00 out of 1.