This is Week 4 Part 2 of my Portfolio Project for my class. I have to calculate my debt to expenses. I have attached the instructions below. If you have any questions please let me know.

# Category: Mathematics

Hello, I would like you to please answer the study guide questions I uploaded. If you need anything please let me know. Thank you so much.

I have attached the instructions below. I need to fill out an excel worksheet. I have also attached the worksheet. If you have any questions please let me know.

follow the instructions on the attached file,

its simple math questions that need to be do in Matlab.

Thank you

## Incorrectquestion 6

Question 1

1 / 1 pts

Another word for ‘average’ is ‘mean’.

True

YES!

False

Question 2

1 / 1 pts

A line that goes from the lower left of a graph to the upper right has a positive slope.

positive slope.png

True

Great!

False

Question 3

1 / 1 pts

The shape of the distribution called the normal distribution is

positively skewed.

a pie chart.

a regression line.

bell-shaped.

UnansweredQuestion 4

0 / 1 pts

Given the following equation for a line: Y = 2X + 4

If X = -4, Y =

UnansweredQuestion 5

0 / 1 pts

Given the following equation for a line: Y = 3X + 4

If Y = -2, X =

IncorrectQuestion 6

0 / 1 pts

3/4 + 2/3 – 1/5

not enough information to answer

> 1

= 1

< 1

Question 7

1 / 1 pts

In a group of 80 psychology majors, 60% are female. How many female psychology majors are in this group?

48%

48

60%

60

IncorrectQuestion 8

0 / 1 pts

Σ(X2) = (∑X)2

True

Maybe you don't recognize that Greek Symbol, . It is the summation symbol.

False

IncorrectQuestion 9

0 / 1 pts

If X = 2 and Y = -5, then XY =

3

.

If X = 2 and Y = -5, then √(-5Y) =

. (√ is the symbol for square root.)

If X = 2 and Y = -5, then 2X2 – 3Y3 =

.

Answer 1:

3

Answer 2:

(You left this blank)

Answer 3:

(You left this blank)

UnansweredQuestion 10

0 / 1 pts

Compute Sophia’s GPA from her fall semester course grades, provided below, with number of credits.

Grade points are: A: 4, B+: 3.5, B: 3, C+: 2.5, C: 2, D: 1, F: 0

Provide only the answer, rounded to 2 decimal places.

American History since 1950: A (3 credits)

Algebra II: B+ (4 credits)

Principles of Sociology: A (3 credits)

Biostatistics: C+ (4 credits

UnansweredQuestion 11

0 / 1 pts

Samira is nearing the end of her biology course and she’s wondering what her current average is, going into the final. Using information from her syllabus she sees the following.

Tests: 50% of course grade

Lab write-ups: 30% of course grade

Pre-labs: 15% of course grade

Attendance at Zoom Lectures: 5%

Samira’s grades are as follows:

Test 1 = 90%

Test 2 = 85%

Test 3 = 78%

Lab 1: 99%

Lab 2: 100%

Lab 3: 85%

Lab 4: 100%

Lab 5: 93%

Her Pre-lab average is 90%.

Her Attendance grade is 100%.

Compute her current grade based on this information:

Provide only your answer, rounded to 2 decimal places.

I have to submit an assignment by this Saturday. I have attached the instructions below. I started filling out all the information I could. I don’t know how to do the rest of the assignment. Great appreciate the help!

Select two questions from the following list:

Explain what is meant by the nth root of a number.

Explain the difference of finding the nth root of a number when the index is even compared to when the index is odd.

Show two different algebraic methods to simplify 4^(3/2). Explain all your steps.

Explain when a radical expression is in simplest form.

Explain what is meant by the word rationalize in the phrase, “rationalize a denominator.”

Explain how to find the domain of a fourth root function.

Explain why the process of finding the domain of a radical function with an even index is different from the process when the index is odd.

Explain how dividing complex numbers is similar to rationalizing a denominator.

2. Prepare the solution to the selected exercise showing the solution on a step-by-step basis. If your response is a descriiption of a process, concept, or problem-solving technique then be sure to show at least one example to support your post.

3. Check the solution if possible.

4. Discuss the method of solving the exercise that was used and possible real-world applications that could be solved with the same technique.NEED TO USE THE REFERENCE PROVIDED IN ATTACHMENT PLEASE.

## Research on diophantine equations.

Diophantus was a great mathematician who studied and wrote about problems with two or more unknowns where the solutions were limited to whole numbers. An example of a Diophantine problem is: “If twice Betty’s age in years plus Joe’s age in years equals seven, how old are Betty and Joe?” Solve this problem, and then explain why it falls into the category of Diophantine equations.

He researches the Diophantine equations in-depth and uses the information he gathers to help present these types of problems to a group of students.

Prepare a lesson plan for grade 5 of elementary, the duration of the lesson, the materials, the objective, the standard, the vocabulary, the procedure (step by step), the evaluation, the activity for printing to each student, and the extension. Be sure to include a comprehensive self-assessment of the lesson.

Details

Research on Diophantine equations.

Use research to support activities.

the activity for printing to each student

The completeness of the lesson plan.(Step for step)

Field test evidence of the lesson.

Assessment

Carrying out an accurate self-assessment (comprehensive self-assessment of the lesson.)

Write a research paper on digital signatures and certifying authorities including their relation to RSA Public and Private Key encryption. This research paper should be at least 800 – 1100 words and include references to the legal status in developed nations, the mathematics behind the technology, what are the major recognized authorities, and the likely future for this technology/business practice. The researcher should find the major US entities and how they relate and trust each other. On the legal topic, the researcher should find national and state laws and standards. You may also find laws from other countries and international organizations. Since many of these laws are now a decade or more old, we could also find legal interpretations of the law itself.

For this project, complete some basic research on the trust infrastructure of the internet. This research should include Digital Signatures, Certify Authorities, Public Key Infrastructure, RSA, and the laws that support these entities. Be sure to include the following relationships:

1) The differences between digital signatures and electronic signatures.

2) Identify a digital signature and how it might be better than a holographic signature (good old pen on paper).

3) Describe Certifying Authorities, identifying who they are and the whole PKI (Public Key Infrastructure).

4) Describe some of the laws that make this technology legally binding.

5) Discuss some of the math behind RSA/Public Key Cryptography.

In researching this topic, I hope that you can provide a clear explanation of how all this works to provide security, authentication, and non-repudiation in the online environment. This topic becomes more and more relevant every day as we do more and more business and live more and more of our lives online.

Please cite two or more authoritative sources. Government sources are a good source for the legal aspects of trust on the Internet. Reputable vendors (the companies that operate some of these services) often have good resources on how these entities work. Finally, research and industry standards organizations are also excellent sources.

SHOW ALL CALCULATION

COBWED IS BY GOOGLE DRIVE MATH 3050 Mathematics and Biology

Homework 1

1. It is known that a given population triples each hour, due to the net effect of fecundity and deaths.

Show the equations that model the population, in each of the two formalisms:

(a) provide a formula for P+ in terms of P;

(b) provide a formula for ∆P in terms of P;

2. Consider the model ∆P = 0.8P(1 −P/10).

(a) Plot ∆P as a function of P manually.

(b) Construct a table of values of Pt for t = 0,1,2,3,4,5 starting from P0 = 1.

(c) Construct a cobweb beginning at P0 = 1 and compare the values from cobweb to those you

obtained in the table.

(d) Plot P(t) as a function of t. (Construct an iteration map)

3. Consider the difference equation:

xn+1 = rxn(1 −xn),x0 = 0.1

(a) Plot the first 30 terms of the solution to the difference equation with r = 0.9,1.5,3,4.

(b) Draw the cobweb maps for each case above.