Categories
IT & Software

Arduino: Everything You Need To Know

A Guide to start Your Own Arduino adventure in no Time

What Will I Learn?

  • You will start to programming Arduino
  • You will discover things that will help you to excel in Arduino programming

Requirements

  • You must be familiar with Internet browsing
  • You must have the well to apply not just watch

Description

Arduino Programming Courses online contains lots of unnecessary information that will surely distract beginners and make them feel odd when they first come to the Arduino World.

The instructor is a very high experienced hardware developer who has strong background in Arduino development and made this course to help new comers to the Arduino world.

He has also been teaching programming since 2010 and have mastered the art delivery.

This course is designed to introduce the Arduino hardware and programming environment to get you started on building projects as soon as possible.

The Arduino is an open-source electronics platform based on easy-to-use hardware and software. Sensing the environment by receiving inputs from many sensors the Arduino affects its surroundings by controlling lights, motors, and a number of other accessories. It’s intended for anyone making interactive hardware projects.

A Platform for Creating any project that comes in your mind.

No experience is required, and all you need is an Arduino

This course is designed for anyone interested in Arduino with zero background knowledge.Who is the target audience?

  • Electronics Geeks
  • Hardware developers
  • Anyone with slight interest in making great things

Created by Educational Engineering Team, Tech Geeks
Last updated 1/2018
English
English [Auto-generated]

Size: 113.26 MB

Friendly Websites

Related Posts

Categories
Development

Python 3: Deep Dive (Part 1)

Description

******

Note: This is not a beginner course. Please see prerequisites (or second lecture) before signing up!

Also, Section 2 is a brief review of basic Python, if you are comfortable with Python, please skip it, and start with Section 3

*******

If you’re looking at this course, you are already interested in Python, and I’m not going to sell you on it.

You already know that this popular language is great for solving a huge variety of tasks from REST api development, system scripting, numerical analysis, manipulating data, data analysis to machine learning and AI.

But do you want to learn idiomatic Python?

Do you want to understand why certain things work the way they do in Python?

Do you want to learn best practices in Python, and common pitfalls Python developers can fall into?

Do you want to become a proficient Python programmer and well on the way to becoming an expert?

Instead of just giving you a 5 minute explanation of how to do something in Python that barely scratches the surface, leaving you open to bad practices and pitfalls, I will provide you a much deeper understanding of the how and why of various concepts.

I will not only show you various ways to code common patterns, but also show you the Pythonic way to do the same.

This is not about learning library XYZ, or glossing over important Python language features. This course focuses on the Python language and the standard library which provides a huge amount of functionality – something you should know about before reaching for 3rd party libraries.

Here you’ll start learning what it takes to become an expert Python developer, and the best resources to dive even deeper if you need to.

We look at a variety of topics in detail.

For example, numbers: Next time you have to use real numbers in your application you’ll truly understand why floats behave the way they do and whether you should use a Decimal or Fraction instead (and know how to do it).

Do you know why you should almost never use equality testing (==) with floats?
0.1 + 0.1 + 0.1 == 0.3 –> False!

Do you know why the float 0.1  actually looks like: 0.100000000000000005551115123126
whereas 0.125 is stored exactly as 0.125000000000000000000000000000?

Do you understand integer division and the mod (%) operator? For negative numbers? Do you want to understand why they behave that way and avoid potential bugs in your code?

For example:

2 % 3 –> 2
-2 % 3 –> 1
2 % -3 –> -1

and

10 // 3 –> 3
-10 // 3 –> -4
-10 // -3 –> 4

Do you truly understand how the boolean operators work?
Do you know what this code does:
a = True
b = False

x = a or b
x –> True

Good. How about this?

a = None
b = ‘python’

x = a or b
x –> ‘python’

Do you want to know why?

Do you know about Python’s associated truth values (truthiness)? And how to leverage this to write cleaner, more Pythonic, code?

How about comprehensions? Would you rather learn to code this way:

def sum_cubes(lst):
sum = 0
for i in range(len(lst)):
sum = sum + lst[i] ** 3
return sum

or this way:

def sum_cubes(lst):
return sum(e ** 3 for e in lst)

Or converting a string into a list of tuples with the index and characters?

The non-Pythonic way to do it:
lst = []
for i in len(lst(s)):
lst.append((i, s[i]))

or the Pythonic way:

lst = list(enumerate(s))

And 9 times out of 10, you probably don’t  even need the list there!

Do you want to know how to fully leverage the hyper flexible way to specify function arguments in Python?

Do you understand this? def my_func(a, b=10, *args, key1, key2=None, **kwargs)

Do you want to learn how to pack and unpack arguments? And iterables in general?

Do you know what this does?
a, b, *_, x, y = some_list

or this?
x, y = y, x
x, y, z = y, z, x

Do you want to know why using a mutable type for function parameter defaults is dangerous? Or a function call? But also learn where you can use it to your advantage?

Can you spot the problem in this “logging” function?

def log(msg, event_time = datetime.utcnow()):
print(f'{event_time}: {msg}’)

log(‘message 1’)
# 5 minutes later…
log(‘message 2’)

Why is the time the same in both cases?

Do you know how to make your custom classes support ordering operators (like <, <=, >, >=, == and !=)? Would you like to know how you can write your own decorator to add this functionality to your classes without having to specify all the possible ordering operators? Or how about using the one that Python’s standard library provides us! How about using decorators to speed up certain function calls using a technique called memoization?

Do you want to learn more about the mapreduce and filter functions? And how comprehensions all but eliminate the need to use them? Or how about partial functions and lambda equivalents? The operator module?

Speaking of lambdas? How about the difference between a “standard” function and a lambda expression?

def say_hello(name):
return f’Hello {name}!’

vs

say_hello = lambda name: f’Hello {name}!’

Hint: they’re the same thing! Lambdas are NOT closures by the way.

Do you think everything needs to be a class? Especially if you have a background in languages such as Java or C#? Welcome to Python’s first-class functions and decorators!

Speaking of decorators, do you know how to create one?

Can you now extend this to create decorators that can also accept parameters?
How about decorating classes? Or decorating functions using decorator classes?

Do you know what the @wraps decorator does? Do you want to know how it does that?
The next time you encounter decorators you’ll understand exactly how they work – they’re not magical, and actually very easy once you have understood what closures are, how they work, and how we can leverage them and the fact that Python is a dynamic language.

Single dispatch generic functions? What are they? How do we create them ourselves? What’s in the standard library?

Do you think tuples are just read-only lists? Are you sure a tuple can never change over time? Guess again – we learn the true meaning of immutability and how variables map to objects in memory.

How about using tuples to return multiple values. Or better yet, using named tuples. And specifying default values for your named tuples.

Do you know the difference between a module and a packagenamespace packages?

Did you know you can store and run your Python apps directly from inside zip archives?

Do you understand what imports do and how you can control the visible portion of your packages using imports? Do you know the difference between the various flavors of import (from … import …import …, etc)?

In part 1 of this series, we focus on variables, memory references, memory management, and functional programming, covering topics like numeric data types, Boolean and comparison operators, first-class functions, lambdas, closures, decorators, introspection, tuples as data structures and all about namespaces, modules and packages.

This course will also grow over time as I keep adding useful videos on common questions, pitfalls and idiomatic Python (See the extras section). If you have special requests, let me know!

In upcoming parts of this series, we’ll deep dive in topics such as exceptions, iterables and iterators, generators, hash maps (dictionaries and sets), object oriented concepts,  asynchronous programming and meta programming.

All within the context of standard Python and the standard library.

Each topic is usually split into a lecture and coding session. The Jupyter notebooks are fully annotated and available with every coding video, as well as through a GitHub repository.

Who this course is for:

  • Anyone with a basic understanding of Python that wants to take it to the next level and get a really deep understanding of the Python language and its data structures.
  • Anyone preparing for an in-depth Python technical interview.

Size: 9.71GB

 

Categories
Development

Go Programming By Example (Golang)

What you’ll learn

  • This practical course will enable you to build reliable, and efficient software, delivering basic to advanced concepts using Go
  • You will learn control structures, arrays, slices, maps, and functions
  • You will learn pointers, structs, and interfaces
  • You will learn concurrency & parallelism, goroutines, channels, and reflections
  • You will learn packages, documentation, unit testing, error handling, json, reflections
  • You will learn to install the Go compiler, Visual Studio Code, MySQL, and PostgreSQL
  • You will see a tour of SQL and also learn to connect Go to MySQL and PostgreSQL
  • You will work on a final assignment

Requirements

  • A Windows or Mac Computer
  • Some experience with a programming language

Description

Go that is called a ‘C for the 21st century’ was designed in 2007 to address some of the industry problems.

Today, many well-known companies like Google, Adobe, Facebook, IBM, and many more use Go.

They use Go, because of its simple approach to implement complex concepts.

This practical course will enable you to build simple, reliable, and efficient software, delivering basic to advanced concepts using Go.

The course is over 23 hours, including 160+ lectures, over 163 code examples, chapter assignments and a final assignment.

Emphasis has been placed on reviewing code examples, diagrams and white boarding.

The course gradually moves from basic to advanced topics and eventually ends with a final assignment.

In 16 sections, it covers topics such as language fundamentals, control structures, arrays, slices, maps, functions, callbacks, closures, pointers, structs, interfaces, concurrency & parallelism, goroutines, channels, packages, documentation, error handling, unit testing, json, files, reflections, MySQL, and may more.

Who is the target audience?

  • Programmers willing to learn core Golang programming (covering basic to advanced topics)

Created by Kam Hojati
Last updated 12/2018
English
English [Auto-generated]

Size: 10.99 GB

Friendly Websites

Related Posts

Categories
Assignment Help

Mr. pines thought ms. smith was the ideal employee. smith was an impressive person and attended all social functions of the company. however, during the past year she had trouble meeting sales quotas. nevertheless, on her performance appraisal, pines rated smith as one of the top salespeople. on hearing this, other salespeople complained that pines must guard against ____ in rating smith.

[ad_1]

Answered by answersmine AT 22/10/2019 – 02:29 AM

The answer in the space provided is that Pines must guard against overemphasizing issues in which are not completely unjust for he only has a handful of facts of picking his ideal employee when he does not know the rest of the performance and that he should not under emphasize others for it is not fair for those people who deserves to have the title and the only reason that they were degraded because of his judgments.

[ad_2]

Categories
Assignment Help

An phrase ends in-omg and functions as a noun

[ad_1]

An phrase ends in-omg and functions as a noun

[ad_2]

Categories
Assignment Help

There are 150 marigold plants in a back yard. Each month, the number of marigold plants decreases by 15%. There are 125 sunflower plants in the back yard. Each month, 8 sunflower plants are removed. Part A: Write functions to represent the number of marigold plants and the number of sunflower plants in the back yard throughout the months. (4 points) Part B: How many marigold plants are in the back yard after 3 months? How many sunflower plants are in the back yard after the same number of months? (2 points) Part C: After approximately how many months is the number of marigold plants and the number of sunflower plants the same? Justify your answer mathematically. (4 points)

[ad_1]

If a quantity A is decreased by 15%, it means that what is left is 85% of it.

85%A= frac{85}{100}A=0.85A

Part A.

Consider the 150 marigolds.

After the first month, 0.85*150 are left
After the second month, 0.85*0.85*150= (0.85)^{2} *150
After the third month, 0.85*0.85*0.85*150 =  (0.85)^{3}*150
.
.
so After n months,  (0.85)^{n}*150 marigolds are left.

in functional notation: M(n)=(0.85)^{n}*150 is the function which gives the number of marigolds after n months

consider the 125 sunflowers.

After 1 month, 125-8 are left
After 2 months, 125-8*2 are left
After 3 months, 125-8*3 are left
.
.
After n months, 125-8*n sunflowers are left.

In functional notation: S(n)=125-8*n is the function which gives the number of sunflowers left after n months

Part B.

M(3)=(0.85)^{3}*150=0.522*150=78 marigolds are left after 3 months.

S(3)=125-8*3=125-24=121 sunflowers are left after 3 months.

Part C.

Answer : equalizing M(n) to S(n) produces an equation which is very complicated to solve algebraically.

A much better approach is to graph both functions and see where they intersect.
 
Another approach is by trial, which gives 14 months

M(14)=(0.85)^{14}*150=15

S(14)=125-8*14=125-112=13

which are close numbers to each other.

[ad_2]

Categories
Assignment Help

The flip flop a lot company makes and sells flip flops they have one linear function that represents the cost of producing flip-flops and another linear function that models how much income they get from those flip-flops describe the key features that will determine if these linear functions ever intercepted

[ad_1]

If the linear functions have the same slope but different y-intercepts, they will never intercept. If the If the linear functions have the same slope and the same y-intercet, they are the same line. If the linear functions have different slopes and different y-intercepts, they will intercept. 

[ad_2]

Categories
Assignment Help

The function H(t) = −16t2 + 48t + 12 shows the height H(t), in feet, of a cannon ball after t seconds. A second cannon ball moves in the air along a path represented by g(t) = 10 + 15.2t, where g(t) is the height, in feet, of the object from the ground at time t seconds. Part A: Create a table using integers 0 through 3 for the 2 functions. Between what 2 seconds is the solution to H(t) = g(t) located? How do you know? (6 points) Part B: Explain what the solution from Part A means in the context of the problem. (4 points)

[ad_1]

Given two functions: h(t)=-16t^2+48t+12 and g(t)=10+15.2t
A] The table of both functions from 0 to 3 will be:
h(t)=-16t^2+48t+12
t           0           1            2          3
h(t)       12         44          44        12

g(t)=10+15.2t

t          0        1            2             3
g(t)     10      25.2       40.4        55.6

the point in which h(t)=g(t) will be given by:
-16t^2+48t+12=10+15.2t
forming quadratic equation we get:
-16t^2+32.8t+12=0
solving the above quadratic equation using the formula we get:
t=-0.32 or t=2.4
therefore we conclude that they only met once, at point t=2.4 sec
therefore they met between points t=-0.32 and t=2.4

[ad_2]

Categories
Assignment Help

Match the following parts of the brain with their functions. 1. cerebrum responsible for muscle coordination and balance 2. cerebellum responsible for speech, emotion, and memory 3. brain stem responsible for involuntary muscles like the heart

[ad_1]

Answer:

The correct match would be:

  1. Cerebrum – responsible for speech, emotion, and memory
  2. Cerebellum – responsible for muscle coordination and balance
  3. Brain stem – responsible for involuntary muscles like the heart

The brain can be divided into three main parts:

1. Cerebrum: It is the largest part of the brain. It can be divided into two halves termed as right and left hemisphere. It can also be divided into broad regions termed as lobes (frontal, parietal, temporal, and occipital lobe).

The main functions of the cerebrum include control of voluntary muscles, interpret information received from sensory receptors (touch, vision, hearing, vision), reasoning, learning, emotions, and speech.

2. Cerebellum: It is located below the occipital lobe in the back of the brain. The main function of the cerebellum is the coordination and precision of voluntary actions and the maintenance of posture and balance of the body.

3. Brain stem: It connects the brain with the spinal cord. It consists of the midbrain, pons, and medulla oblongata. It helps in controlling and coordinating involuntary movements like the heart, lungs, swallowing, breathing, sneezing et cetera.

[ad_2]

Categories
Assignment Help

How can you use spreadsheets both at home and at the office? describe the office business functions which can use electronic spreadsheets? which home management functions can use electronic spreadsheets?

[ad_1]

How can you use spreadsheets both at home and at the office? describe the office business functions which can use electronic spreadsheets? which home management functions can use electronic spreadsheets?

[ad_2]

Categories
Assignment Help

Analyze the characteristics of exponential and logarithmic functions. Make sure you talk about domain and range. Compare them to other functions.

[ad_1]

Analyze the characteristics of exponential and logarithmic functions. Make sure you talk about domain and range. Compare them to other functions.

[ad_2]

Categories
Assignment Help

According to the 2012 budget, which two functions received the least spending? 1. international affairs 2. national defense 3. transportation 4. Social Security 5. income security

[ad_1]

The correct answer are 1 and 3, as International Affairs and Transportation received the least spending in the 2012 United States federal budget.

Social Security received $773 billion, National Defense received $678 billion, Income Security was allowed to spend until $541 billion, Transportation received $91 billion, and International Affairs received only $47 billion.

[ad_2]

Categories
Assignment Help

For more than 200 years the united states has relied in its constitution to set the laws of society, determine the functions of the government, and protect the liberties of the people. Many nations around the world have based their own constitutions on the US Constitution

[ad_1]

Answer:

Noninvolvement in world affairs is termed “isolationism”.

Explanation:

Isolationism is a concept that designates a political inclination that defends the isolation and nonintervention of a country in international conjunctural issues. That is, putting it in simpler terms, isolationism proposes that a country does not intervene in any way in an external conflict that afflicts another nation or group of nations so that it does not end up affecting their interests.  

Basically, isolationism causes that the country that adopts this position is totally isolated from everything that happens in the rest of the world so that nothing affects it in its possible benefits.

[ad_2]

Categories
Assignment Help

Two functions are graphed on the coordinate plane. Which represents where f(x) = g(x)?

[ad_1]

Two functions are graphed on the coordinate plane. Which represents where f(x) = g(x)?

[ad_2]

Categories
Assignment Help

Consider the functions shown on the graph. What is the input value for which the statement f(x) = g(x) is true? 0.25 0.5 1.5 2.75

[ad_1]

The basis to respond this question are:

1) Perpedicular lines form a 90° angle between them.

2) The product of the slopes of two any perpendicular lines is – 1.

So, from that basic knowledge you can analyze each option:

a.Lines s and t have slopes that are opposite reciprocals.

TRUE. Tha comes the number 2 basic condition for the perpendicular lines.

slope_1 * slope_2 = – 1 => slope_1 = – 1 / slope_2, which is what opposite reciprocals means.

b.Lines s and t have the same slope.

FALSE. We have already stated the the slopes are opposite reciprocals.

c.The product of the slopes of s and t is equal to -1

TRUE: that is one of the basic statements that you need to know and handle.

d.The lines have the same steepness.

FALSE: the slope is a measure of steepness, so they have different steepness.

e.The lines have different y intercepts.

FALSE: the y intercepts may be equal or different. For example y = x + 2 and y = -x + 2 are perpendicular and both have the same y intercept, 2.

f.The lines never intersect.

FALSE: perpendicular lines always intersept (in a 90° angle).

g.The intersection of s and t forms right angle.

TRUE: right angle = 90°.

h.If the slope of s is 6, the slope of t is -6

FALSE. – 6 is not the opposite reciprocal of 6. The opposite reciprocal of 6 is – 1/6.

So, the right choices are a, c and g.

[ad_2]

Categories
Assignment Help

PLEASE HELP ILL GIVE 40 PTS There are 20 alligators in the swamp. Each year, the number of alligators increases by 25%. There are 25 crocodiles in the swamp. Each year, 10 new crocodiles join the swamp. Part A: Write functions to represent the number of alligators and crocodiles in the swamp throughout the years. (4 points) Part B: How many alligators are in the swamp after 4 years? How many crocodiles are in the swamp after the same number of years? (2 points) Part C: After approximately how many years is the number of alligators and crocodiles the same? Justify your answer mathematically. (4 points)

[ad_1]

The polinomials only can have positive whole exponents, that is: 1, 2, 3, 4, 5, 6, … (you can include 0 also, because it iis the independent term).

So, if you are told that one term of the polynomial is 9 x ^ (negative something), it is necessary that the number after the negative sign be negative, given that negative times negative is positive.

Therefore, the only possible option from the answer choices is the option 3) -9.

Answer: 3) – 9

[ad_2]

Categories
Assignment Help

Working your body harder than usual in order to improve how it functions is formally referred to as

[ad_1]

1. The answer is “C”.

“Identical twins” who have been raised apart are typically more similar in intelligence level than biological siblings raised together because they have been born with the same genetic code.

Identical twins originate from a single fertilized egg that parts into two. Before it parts, it is either male or female. After it parts, there are either two guys or two females. The two sections of the fertilized egg embed in the uterus and every create one of the twins.  

Identical twins have the equivalent hereditary source. No immediate reason for monozygotic twinning has been resolved; it isn’t innate. Monozygotic twins speak to around 33% all things considered. They may look strikingly comparative, and it might be hard to reveal to them separated.

2. The answer is “A”.

Lawrence Kohlberg felt that one of the only ways individuals will accomplish the objectives in each of his six stages was to participate in “consensus democracy” in small group settings.

Lawrence Kohlberg felt that the best way to support development through these stages was by discourse of good problems and by investment in consensus democracy inside small groups. Consensus democracy was rule by understanding of the gathering, not larger part rule. This would invigorate and widen the reasoning of youngsters and grown-ups, enabling them to advance starting with one phase then onto the next.

3. The answer is “D.  showing a learner how to correct common mistakes”.

The term scaffolding alludes to a procedure in which instructors display or exhibit how to take care of an issue, and afterward venture back, offering support as required. Analyst and instructional architect Jerome Bruner first utilized the term ‘scaffolding’ in this setting, harking back to the 1960s. The hypothesis is that when understudies are given the help they require while discovering some new information, they stand a superior possibility of utilizing that learning freely. Bruner suggests positive association and three methods of portrayal amid educating: activities, pictures, and dialect.  

[ad_2]

Categories
Assignment Help

You are to create a story for a child of 5-6 years old. You will explain the brain and its functions to them. You need to use the following terms and explain their functions in simple terms. Use the format of a story to keep the child interested, and be sure to use illustrations. Add characters (Dora, Superman, etc.) to make the information fun.

[ad_1]

Answer:

1) Water has very high specific heat.

2) It expands when it freezes

3) ability to dissolve in ionic substances

4) Water molecules at the surface experience fewer hydrogen bonds than water molecules within the liquid.

Explanation:

1) Water molecules due to their high specific heat , undergo relatively less increase in temperature after absorbing heat. So they prevent their adjoining area to experience sharp increase in temperature.

2) Water is an example which expands on freezing. In it , large spaces are left between molecules when it cools. It happens because hydrogen bonds prevent any two molecules to come very close thereby  creating gaps. This gap is filled up when ice melts , which results in overall reduction in volume of water.

3) Uneven distribution of charge results in water molecules becoming polar in nature . A polar substance  can be dissolved in polar solvents only.

4) It is due to property of surface tension. Property  of surface tension results due to molecules of water near the surface experiencing a  net downward  force due to hydrogen bonds . It is due to fewer hydrogen bonds made by them.

[ad_2]

Categories
Assignment Help

Graph the functions and approximate an x-value in which the quadratic function exceeds the exponential function. y = 4x y = 7×2 + 4x – 2

[ad_1]

Answer:

False

Step-by-step explanation:

Suposse that we are given a function f(x) and a constant value h.

1. Case:

If we take the function g(x)=f(x)+h, then the graph of the function g(x) will be the graph of the funcion f(x) moved up or down.

2.Case:

If we take the function g(x)=hf(x), then the graph of the function g(x) will be the graph of the function f(x) just taller or shorter.

3.Case:

If we take the function g(x)=f(x-h), then the graph of the function g(x) will be the graph of the fuction f(x) moved horizontally.

4. Case:

If we take the function g(x)=f(hx), then the graph of the function g(x) will be tha graph of the function f(x) wither or thiner.

For example:

If we take f(x)=sin(x) and h=2. Then, if we take g(x)=sin(2x) then f(0)=g(0)=0, which means that the graph of the functiction is not moved up or down. However, f(π/2)=sin(π/2)=1 and g(π/2)=sin(π)=0 which gives us a hint that the graph of the function became thiner.

[ad_2]

Categories
Assignment Help

Which of the following functions is not a linear function? A)f(x) = -2 B)f(x) = x – 2 C)f(x) = 2x D)f(x) = x 2

[ad_1]

Which of the following functions is not a linear function? A)f(x) = -2 B)f(x) = x – 2 C)f(x) = 2x D)f(x) = x 2

[ad_2]

Categories
Assignment Help

Send help, inverse trigonometric functions

[ad_1]

Send help, inverse trigonometric functions

[ad_2]

Categories
Assignment Help

How do u find the domain of radical functions.

[ad_1]

Answer:

Number of copy machines must be made to minimize the unit cost=160.

Step-by-step explanation:

We are given that the unit cost function C ( the cost in dollars to make each copy machine)

If machines are made =x

Then the unit cost function is given by

C(x)=0.8x^2-256x+25939

We have to find the number of copy machines for  minimize the unit  cost

C(x)=0.8x^2-256x+25939

Differentiate with respect to x

Then we get

frac{mathrm{d}C}{mathrm{d}x}=1.6x-256 ……(equation I)

To find the value of x then we susbtitute frac{mathrm{d}C}{mathrm{d}x} is equal to zero

frac{mathrm{d}C}{mathrm{d}x}=0

1.6x-256=0

1.6x=256

x=frac{256}{1.6}

By using division property of equality

x= 160

Again differentiate the equation I with respect to x then we get

frac{mathrm{d}^2 C}{mathrm{d}^2 x}=1.6 >0

Hence, the unit cost is minimize for x=160

Therefore, the number of copy machines must be made to minimize the unit cost =160

[ad_2]

Categories
Assignment Help

The majority of functions within a cell are carried out by

[ad_1]

There are two systems in the human body that are responsible for the coordination between the functions of different systems to achieve the unity of the living organism’s body. These two systems are the nervous system and the endocrine system. The action of the nervous system is fast and takes a short time, while the action of the endocrine system is slow and takes a long time.

The functional unit of the nervous system is the nerve cell or the neuron. The neuron consists of a cell body and the axon. The cell body starts with the dendrites that receive the messages or the impulses from other neurons or from different sense organs or receptors. These impulses are then transmitted through the cell body. The cell body contains a nucleus and different organelles which help the nerve cell to perform its functions. The nerve impulse is then transmitted to the axon.

The axon is an extension from the cell body. There are some cells called Schwan cells that secrete a myelin sheath to insulate the axon from the surrounding medium. The insulated axons have more ability to conduct the impulses than non-insulated axons. The axon ends with the terminal arborizations. The terminal arborizations of a nerve cell connect to the dendrites of the next cell or to the afferent organ. The gaps between the dendrites and the terminal arborizations are called the synapses.

The nerve impulse is an electrochemical phenomenon i.e. an electrical phenomenon with a chemical nature. The membrane of the axon acts as a barrier between an outside positively charged medium and an inside negatively charged medium. This makes a potential difference of  -70mV. This state is called the resting potential. When the membrane is subjected to a stimulus, the positive charges enter to inside and the negative charges exit to the outside. The potential difference now becomes +40mV. This state is called the depolarization state. The point of stimulation acts as a new stimulus for the next point and so on. The membrane sooner gains its permeability again and the positive charges return to the outside and the negative charges to inside. This state is called repolarization.

The nerve impulse reaches the synapse. There are some neurotransmitters that are excited by the nerve impulse coming and carry the message across the membrane. Some receptors receive theses neurotransmitters on the dendrites of the next neuron. These receptors act as a stimulus for the new cell.

[ad_2]

Categories
Assignment Help

Explain the importance of carbohydrates and lipids in the human body. Include a discussion of at least two functions of carbohydrates and the roles of two groups of lipids.

[ad_1]

Explain the importance of carbohydrates and lipids in the human body. Include a discussion of at least two functions of carbohydrates and the roles of two groups of lipids.

[ad_2]

Categories
Assignment Help

The range of the function f(k) = k2 + 2k + 1 is {25, 64}. What is the function’s domain?

[ad_1]

Answer: The answer is (C) Patricia is not correct because both 3 – 4i  and -11+√2i  must be roots.

Step-by-step explanation:  Given that  (-11-√2i) , (3 + 4i), and 10 are the roots of the polynomial function f(x) that Patricia is studying.

We know that the complex roots of a polynomial function always occur in pairs. That is, if (a + bi) is a root of a function, then (a – bi) will also be a root (one is the complex conjugate of the other).

The complex conjugate of (3 + 4i) is (3 – 4i) and the complex conjugate of (-11 – √2i) is (11 + √2i).

Therefore,  (3 – 4i) and (-11 + √2i) both are the roots of f(x).

Hence, since we have 5 roots, so the degree of the polynomial function f(x) cannot be 4.

Since Patricia concludes that the degree of f(x) is 4, so she is not correct because both (3 – 4i)  and (-11+√2i)  must be roots.

Thus, option (C) is correct.

[ad_2]