using machine language to uncover regularities in data and create predictive models is the computational thinking tool _____.

Answers

Answer 1

The computational thinking tool used to uncover regularities in data and create predictive models is machine learning.

Machine learning is a computational thinking tool that involves using algorithms and statistical models to analyze large amounts of data, identify patterns, and make predictions or decisions without being explicitly programmed. It is a subset of artificial intelligence (AI) that focuses on the development of systems capable of learning from data and improving their performance over time.

Machine learning algorithms use machine language, a set of instructions and patterns written in a specific format that a computer can understand and execute. By training these algorithms on large datasets, they can uncover regularities, correlations, and underlying structures within the data. This process involves feature extraction, model training, and model evaluation to create predictive models that can make accurate predictions or classifications on new, unseen data.

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Related Questions

You can use this keyboard shortcut to toggle the visibility of the command line. If for some reason your command line is hidden from the drawing area, then use this keyboard shortcut to bring it back *

Answers

Answer:

Ctrl + 9

Explanation:

You can use this keyboard shortcut to toggle the visibility of the command line

Enumerate the steps on how to set-up the CD-ROM as the first boot device.​

Answers

Answer:

Explanation:

1)Press boot key ( Del or specified key)

to enter BIOS setup utility.

2) using the direction keys, make selection of "Advanced BIOS Features"

3)then access Advanced BIOS setting by pressing Enter key

4. Using up/ down arrow keys Select "First Boot

Device"

.

5) Using up and down keys, select "CD-ROM "

6. go back to "BIOS setting screen" by Pressing ESC key

7. Select " Save & Exit Setup"

.

The schematic diagram below shows three machines in a production unit connected to a 240 volt supply.
The layout uses different types of wire for the main wire, wire 1, wire 2, and wire 3.
Calculate the maximum current that can flow through each type of wire. The diameter of a wire is related to the maximum amount of current it
can safely carry. Use Internet resources to find the most suitable gauge of wire for each part of the wiring in the circuit. List the highest American
Wire Gauge (AWG) number that you can use for each type of wire. (Hint: For the main wire, consider how the current through it relates to the
currents through each of the machines.)
Also, state how you can protect the wiring from damage If any of the machines exceeds its maximum power rating because of a malfunction.

Answers

Answer:

[tex]\begin{array}{ccc}Wire \ Number &Maximum\ \ Current \ (A)& AWG\\&&\\Main \ Wire&16\frac{5}{6} &9\\&&\\Wire \ 1&9\frac{1}{6} &12\\&&\\Wire \ 2&5&14\\&&\\Wire \ 3&2.5&17\end{array}[/tex]

Explanation:

The given parameters of the circuit are;

The voltage applied to the circuit = 240 volt

The types of wire in the circuit are Main wire, wire 1, wire 2, and wire 3

The maximum current that can flow through each type of wire is given by the max power of the machine powered by the wire

Power, P = Voltage, V × Current, I

∴ I = P/V

The maximum power of the machine powered by wire 1 = 2,200 W

The current flowing through wire 1, I₁ = 2,200 W/(240 V) = 55/6 A = [tex]9\dfrac{1}{6} \, A[/tex]

The maximum power of the machine powered by wire 2 = 1,200 W

The current flowing through wire 2, I₂ = 1,200 W/(240 V) = 5 A

The maximum power of the machine powered by wire 3 = 600 W

The current flowing through wire 3, I₃ = 600 W/(240 V) = 2.5 A

Therefore, Kirchhoff's current law, we have;

The current that the main wire can carry, I = I₁ + I₂ + I₃

∴ I = 55/6 A + 5 A + 2.5 A = 50/3 A = 16.[tex]\overline 6[/tex] A

The current that the main wire can carry, I = 16.[tex]\overline 6[/tex] A

The highest American Wire Gauge (AWG) that can be used for each type of wire are listed as follows;

[tex]\begin{array}{ccc}Wire \ Number &Maximum\ \ Current \ (A)& AWG\\&&\\I&16\frac{5}{6} &9\\&&\\I_1&9\frac{1}{6} &12\\&&\\I_2&5&14\\&&\\I_3&2.5&17\end{array}[/tex]

Therefore, we have;

[tex]\begin{array}{ccc}Wire \ Number &Maximum\ \ Current \ (A)& AWG\\&&\\Main \ Wire&16\frac{5}{6} &9\\&&\\Wire \ 1&9\frac{1}{6} &12\\&&\\Wire \ 2&5&14\\&&\\Wire \ 3&2.5&17\end{array}[/tex]

The equipment that makes sewing easier and faster is ________​

Answers

Answer:

its a sewing machine

Explanation:

The equipment that makes sewing easier and faster is a sewing machine

What are some other projects or things you do in your life (other than writing an essay) where you use an iterative process?

Answers

Answer:The iterative design process occurs in a continuous cycle involving three unique stages: formulate, test, evaluate. These core elements make up the basic progression in which the development of a game will follow. The rest is simply rinse and repeat

Explanation:

Answer:

Coke has experimented with different formulations of its popular Coca Cola product, including the failed New Coke iteration. The aim is to achieve the best tasting product that customers like.

A company that is operating a factory or assembly line may experiment with different methods of arranging the assembly line or with different production methods. Each time the production process is changed, this is a different iteration. Each time the order of operations and procedures are changed, this is a different iteration. The goal is to achieve the fastest, best and most optimal method of creating a product.

A musician may start with one version of a song and refine it, making changes to a note here and there or changing the tempo and speed. Many different iterations of a song may be created this way until the optimal finished product has been created that sounds and works the best.

A cook may experiment with a recipe, tweaking the ingredients or changing different steps of the process slightly until the food tastes as good as it possibly can.

Microsoft has released multiple versions of the Windows operating system to add functionality for users and to correct bugs. Each different version is a different iteration of its operating system and the goal is for the next iteration to be better than the last.

Explanation:

Pick an example, and put it in your own words.

I need help writing the algorithm I know how to do the flow chart for the first one but I’m not sure if the second question is a for loop

Answers

Answer:

The algorithm is as follows:

(a) Sales and commission

1. Start

2. Input Sales

3. Commission = 0.30 * Sales

3. If sales >= 4000.00 then

3.1   Commission = 0.60 * Sales

4. End If

5. Print Commission

6. Stop

(b) Amount of Rainfall

1. Start

2. Days = 1

3. Total = 0.0

4. While Days <= 31

4.1. Input Rainfall

4.2. Total = Total + Rainfall

4.3. Days = Days + 1

4.4. End If

5. Print Total

6. Stop

See attachment for flowchart

Explanation:

(a) Sales and commission

This begins the algorithm

1. Start

This gets sales from the user

2. Input Sales

This calculates the commission based on 30% (i.e. for sales < 4000)

3. Commission = 0.30 * Sales

This checks if sales is greater than or equal to 4000

3. If sales >= 4000.00 then

This calculates the commission as 60% of Sales

3.1   Commission = 0.60 * Sales

This ends the if condition

4. End If

This prints the calculated commission

5. Print Commission

This ends the algorithm

6. Stop

(b) Amount of Rainfall

This begins the algorithm

1. Start

This initializes the number of days to 1

2. Days = 1

This initializes total rainfall to 0

3. Total = 0.0

The following while loop is repeated until day 31st

4. While Days <= 31

This gets input for Rainfall from the user

4.1. Input Rainfall

This calculates the total rainfall

4.2. Total = Total + Rainfall

This increments the number of days

4.3. Days = Days + 1

This ends the if statement

4.4. End If

This prints the total rainfall

5. Print Total

This ends the algorithm

6. Stop

Select all the correct answers.
Daniel is an app developer. He is working on an app for a retail store selling sports goods. The store manager explains that he would like customers to be alerted whenever there is a sale at the store. Interested customers would also be able to send an immediate response and book items they like from their mobile devices. Which statements about the use of the app are true?

It will make shopping easy.
It will enable quick transactions.
It will enable safety.
It will manage health.
It will save time.
Please I really need it because it will decides my grade.

Answers

Answer:

it will make shopping easy

Explanation:

The app will allow customers to shop with their phone instead of locating to the store. It also keeps the customers informed of events and sales for shopping.


What is programming?​

Answers

Answer:

using code etc to change how something works out make it work how you want it to. mostly code but sometimes circuit boards and stuff like that.

Explanation:

see above

Answer:

Programming is the process of creating a set of instructions that tell a computer how to perform a task.

In French class, Blue puts on a visor and the environment changes to that of a café in Paris. Which of the following terms describes this kind of technology?

Answers

Answer:

virtual reality

Explanation:

Answer:

virtual

Explanation:

virtual and realyty

Documental acerca de los principales materiales que se emplean en la fabricación de medios técnicos utilizados en una oficina.

Answers

Answer:

Los equipos técnicos utilizados en una oficina y los principales materiales utilizados en su fabricación son;

Equipo de oficina [tex]{}[/tex]    Material utilizado en la fabricación

1) Impresoras;           [tex]{}[/tex]    Acero, aluminio, alambres de cobre, plástico, rodillos

2) Monitor de computadora; [tex]{}[/tex]   Pantalla de vidrio, plástico, cables, placas de circuito, resortes

3) Escáneres;     [tex]{}[/tex]  Alfombra compuesta, mesa de vidrio, carcasa de plástico, cables

4) Copiador;   [tex]{}[/tex]       Carcasa de plástico, contenedor de tóner, placa de vidrio, cables de alimentación

5) Proyector;    [tex]{}[/tex]    Lente de vidrio y carcasa de metal para lámpara, cables de alimentación

6) Desfibradora; [tex]{}[/tex]    Engranajes de plástico, correa de cadena de metal, rodamientos

Explanation:

What is the output of this Python code?
def guess(a, b, c):
if a > b and a < c:
print(True)
else:
print(false)
X = 45
y = 31
z = 78
guess(x, y, z)

Answers

Answer:

True

Explanation:

in function guess:- a = x; b = y; c = z

so 45 > 31 AND 45 < 38

since both the stements are true

True is printed

pls answer i need to turn it in today!!

In computing flowcharts how are decisions represented?

What is the command used most for decisions?

Answers

Answer:

See Explanation

Explanation:

How decisions are represented?

In flowcharts, decisions are represented using diamond shapes (see attachment)

Decisions could be conditional statement or repetition operations which may have the form of loops or iterations.

Either of theses are represented using the diamond shapes.

Take for instance:

To check if a is greater than b... Simply write if a > b i the diamond box

Command used for most decisions

Most decisions are conditional statements; hence, the if command is often used for decisions.

Which finger is used to press SHIFT key while typing!
A. Little finger
B. Thumb
C. Index finger
D. Ring Finger ​

Answers

Answer:

Little Finger (A)

Explanation:

it would be A. little finger i’m pretty sure

Your task is to identify three or more ways that big data is being collected on a regular basis, including one data collection method for each of the following categories:

Data collection on the internet
Digital data collection from a source other than the internet
Analog (non-digital) data collection being performed in physical places

For each of these data collection practices: Describe how the data collection occurs. Analyze the data collection process by answering the following five questions in complete sentences and to the best of your ability:

What data is being collected?
Why is this data being collected?
What are the likely benefits of this data collection?
How might this data collection cause harm?
How likely is it that this data can be accessed by others?

You may use the internet or any other available resources to identify and analyze these data collection strategies.

Answers

Answer:

Data is one of the most valuable resources today's businesses have. ... There are various data-gathering methods you can use with the help of your ... When it comes to data businesses collect about their customers, ... Third-party data offers much more scale than any other type of data, ... Big White Cursor.

Explanation:

The data is one of the most essential and the most important aspects of the  modern world and s collected each and every hour. The data forms an essential element of the internet and digital media.

The data is held soly responsible for the generation of numerous possibilities.The data collected can be used for further processing and creation of new contents.

Learn more about the tasks to identify.

brainly.com/question/20688743.

Which of these best represents a call to action?
O A. Bright colors on a billboard
O B. "Buy 1 Get One Free!"
O C. Loud background music to a commercial
O D. "Come in today!"

Answers

Answer:

d

Explanation:

d just did it

"Come in today!" best represents a call to action. Thus, option D is correct.

What is a call to action?

This is an instruction on a webpage or a house call that directs the customer to execute an action. Traditionally, a call to action is expressed as a directive and deed that a person needs to come in soon. Any layout intended to elicit an instant answer or promote an entrepreneurship culture is referred to in promotion as a "call to action."

The shop represents or says that come in today, they were for the customer to come in today and help the people to come in and get the product that is needed.

This suggests that the part there will be a change in the want of the people and the command of the people that the people should immediately want them to come in, it is a strategy to attract the customers. Therefore, option D is the correct option.

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1. ¿Dónde emergieron los Bancos Centrales? 2. ¿En qué siglo los Bancos Centrales se potenciaron? 3. ¿El Banco de Suecia en qué siglo fue fundado? 4. ¿En el año de 1694 qué Banco se creó? 5. ¿Quién creo en 1800 el Banco Francés? 6. ¿En qué siglo y años Estados Unidos creó el Banco Estados Unidos? 7. Entre 1861 -1865 Abraham Lincoln creo el primer Banco y único Banco Central ¿Cuál erasu objetivo? 8. ¿Cuál otras funciones cumplían los Bancos en el siglo XIX?

Answers

Answer:

. ¿Dónde emergieron los Bancos Centrales?

El primer banco central fue creado por el Parlamento Sueco en 1668, siendo su principal acreedor la Corona Sueca. Esto generó inflación y crisis financieras. Después de un siglo, en 1779, la ley fue modificada, obligando al Banco a que la masa monetaria fuese respaldada por oro en una proporción fija. Sin embargo, comenzó la guerra con Rusia y se regresó a su origen violando el precepto de estabilidad que confería ese patrón oro.

2. ¿En qué siglo los Bancos Centrales se potenciaron?

La historia de la banca central se remonta al menos al siglo XVII, con la fundación de la primera institución reconocida como un banco central, el Banco de Suecia.

3. ¿El Banco de Suecia en qué siglo fue fundado?

El primer banco central fue creado por el Parlamento Sueco en 1668.

4. ¿En el año de 1694 qué Banco se creó?

En 1694, se creó el Banco de Inglaterra, que sería el más famoso banco central durante casi 300 años.

5. ¿Quién creo en 1800 el Banco Francés?

Fue creado por Napoleón en 1800 para estabilizar la moneda después de la hiperinflación del papel moneda generado durante la Revolución Francesa y las conquistas napoleónicas.

6. ¿En qué siglo y años Estados Unidos creó el Banco Estados Unidos?

A principios del siglo XIX, Estados Unidos creó el Banco de los Estados Unidos (1791-1811) y luego un segundo Banco de los Estados Unidos (1816-1836) tras el cierre del primero. Ambos bancos se establecieron siguiendo el modelo del Banco de Inglaterra. Pero a diferencia de los británicos, los estadounidenses tuvieron una desconfianza profunda de cualquier concentración de poder financiero en general, y de los bancos centrales, en particular.

7. Entre 1861 -1865 Abraham Lincoln creo el primer Banco y único Banco Central ¿Cuál erasu objetivo?

Abraham Lincoln creó el primer y único Banco Central público del país, con el objetivo de garantizar los pagos de guerra.

8. ¿Cuál otras funciones cumplían los Bancos en el siglo XIX?

Se exigió la creación de una estructura crediticia flexible que fuera capaz de dar respuestas a las empresas de ferrocarril y a los barcos de vapor,

Explanation:

. ¿Dónde emergieron los Bancos Centrales?

El primer banco central fue creado por el Parlamento Sueco en 1668, siendo su principal acreedor la Corona Sueca. Esto generó inflación y crisis financieras. Después de un siglo, en 1779, la ley fue modificada, obligando al Banco a que la masa monetaria fuese respaldada por oro en una proporción fija. Sin embargo, comenzó la guerra con Rusia y se regresó a su origen violando el precepto de estabilidad que confería ese patrón oro.

2. ¿En qué siglo los Bancos Centrales se potenciaron?

La historia de la banca central se remonta al menos al siglo XVII, con la fundación de la primera institución reconocida como un banco central, el Banco de Suecia.

3. ¿El Banco de Suecia en qué siglo fue fundado?

El primer banco central fue creado por el Parlamento Sueco en 1668.

4. ¿En el año de 1694 qué Banco se creó?

En 1694, se creó el Banco de Inglaterra, que sería el más famoso banco central durante casi 300 años.

5. ¿Quién creo en 1800 el Banco Francés?

Fue creado por Napoleón en 1800 para estabilizar la moneda después de la hiperinflación del papel moneda generado durante la Revolución Francesa y las conquistas napoleónicas.

6. ¿En qué siglo y años Estados Unidos creó el Banco Estados Unidos?

A principios del siglo XIX, Estados Unidos creó el Banco de los Estados Unidos (1791-1811) y luego un segundo Banco de los Estados Unidos (1816-1836) tras el cierre del primero. Ambos bancos se establecieron siguiendo el modelo del Banco de Inglaterra. Pero a diferencia de los británicos, los estadounidenses tuvieron una desconfianza profunda de cualquier concentración de poder financiero en general, y de los bancos centrales, en particular.

7. Entre 1861 -1865 Abraham Lincoln creo el primer Banco y único Banco Central ¿Cuál erasu objetivo?

Abraham Lincoln creó el primer y único Banco Central público del país, con el objetivo de garantizar los pagos de guerra.

8. ¿Cuál otras funciones cumplían los Bancos en el siglo XIX?

Se exigió la creación de una estructura crediticia flexible que fuera capaz de dar respuestas a las empresas de ferrocarril y a los barcos de vapor,

Please answer these computer fill in the blanks
1) operators are the _______________ used in formulas to perform a particular calculation
2) the____________feature of Excelhelps to copy the formula quickly
3) Excel provides over ________________used to perform calculations
4) ____________ category of functions includes functions for calculation, and tracking principal and interest
5) ___________ functions returns one of two results you specify based on whether the value is TRUE or FALSE

Answers

Answer:

best

cool

Explanation:

PLEASE HELP ITS TIMED Ishmael would like to capture a selected portion of his screen and then capture actions he performs on that selected portion. What should he do?


Use the Video from My PC command.

Use the Insert Screen Recording control.

Create a poster frame.

Use an embed code.

Answers

Answer:

Option B

Hope this Helps!!! :)

the guest would like to convert his 100 dollar to peso.How much will the guest receive if the exchange rate is 1 dollar=Php 50.50?​

Answers

Answer:

the answer is $100

I hope it helps

have a nice day

#Captainpower :~

what is a defult? pls help if you wouldn't mind

Answers

Answer:

a beginner or a novice

Explanation:

failure to fulfill an obligation, especially to repay a loan or appear in a court of law.

Internet and global communication came with challenges and opportunities, give example of opportunities from real life?

Answers

Answer:

Employment - The internet has allowed for people to be able to hire others from all over the globe instead of just in the country that they are based. The employers get access to skilled manpower from more than one place and more often than not, this kind of hiring reduces labor costs. Access to more markets - The internet and global communication have led to prosperity for a lot of people as they are now able to buy and/ or sell goods to many more markets. Think for instance, about the Chinese vendors selling on eBay or Amazon. The internet has allowed them to b able to sell to people all over the world instead of just China. Education : The internet also benefits education as students are now able to get help from other people by logging onto the net. People are also able to study in Universities that are far away from where they are based thanks to the internet allowing for instantaneous communication.

The shapes of AND, OR, and NOR gates have something in common. What is it and why do you think they share that feature?

Answers

There're all conjunctions.

You can seperate them in sentences after a comma for a run-on sentence.

16
Mackenzie is the network administrator for a large security corporation. What task
might Mackenzie perform as part of her job?
O answering calls from customers who need help
9
developing a website for the corporation
12
connecting a new computer to the network
15
testing a new video game before its release

Answers

Answer:

Connecting a new computer to the network.

Answer:

C. Connecting a new computer to the network

Explanation:

That is part of the job and the test say it is correct.

Frida has been given the task of creating a database to store all her company's records and sales records. She is going to produce a relational database. The customers records will have the fields Customer_id, Name, Contact_Phone, and card Number. The sales records will have the fields Invoice_number, Item_number, Item_description, Item_cost and Customer_ref.

Complete the diagram below to show how the tables will be combined.

Answers

Answer:

A value that's used to identify a record from a linked table is called a ______. ... A database administrator is setting up a new table that will contain customer ... The fields include name, address, company, phone, email, and customer ID. ... Gina does not know how to write SQL commands and no forms have been created.

Explanation:

The answer is not border

Answers

Answer:

#footer {

   border-top: 1px solid rgba(0, 0, 0, 0.3);

   background: rgba(0, 0, 0, 0.25);

   box-shadow: inset 0 1px rgba(255, 255, 255, 0.3);

   height: 40px;

}

Explanation:

hope this helps,

Have a great day

A client needed a software application to be delivered with a demo of the working software at every stage of development. The project head ensured that all the team members were in the same location. The work was completed in a short duration with minimal documentation and through continuous customer interaction. Which model did the team use? A agile B. spiral C waterfall D. RAD ​

Answers

Answer:

Rapid Application Development (RAD)

Explanation:

Software development life cycle (SDLC) can be defined as a strategic process or methodology that defines the key steps or stages for creating and implementing high quality software applications.

RAD is an acronym for rapid application development and it is a model that is typically based on the concepts of prototyping and iterative development technique with minimal documentation or planning involved.

In the RAD model, more priority is given to the development of the software while minimal attention is given to documentation or planning. Therefore, it focuses on developing softwares within a short period of time and using prototypes (working modules) such as templates, codes, processes, tools, etc.

Basically, the RAD model comprises of five (5) phases and these includes;

I. Business modeling.

II. Data modeling.

III. Process modeling.

IV. Application generation.

V. Testing and turnover.

In conclusion, the RAD model allows software application to be delivered with a demo of the working software at every stage of development for continuous customer interaction.

Answer:

Its rad ladies and gentlemen

Explanation:

Need help ASAP

Thankss + BRAINLIST only for correct answers

Answers

Why visit it?
For entertainment, purely for the user to enjoy the content that has been produced for them.

Why was it made?
Netflix is a subscription based service that has been made to allow users to stream TV shows and other entertainment sources. It was made for leisure.

What is the name of the function below?

function go(){
alert("hello everybody");
}

Answers

Answer:

It’s Java script I think and it makes something say hello everybody

Explanation:

time to throw poggers xqc time to throw pogchamp time to throw pogchamp time to throw pogchamp time to throw pogchamp time to throw houhouhouhou time to throw poogcham

Answers

yes thank you very much

Answer:

yep

Explanation:

i think i have a virus on my computer what am i supposed to do

Answers

Answer:

call like a phone or computer company and ask wjat thry can do

Other Questions
sql world database display all languages spoken by The probability is 0.314 that the gestation period of a woman will exceed 9 months. in six human births, what is the probability that the number in which the gestation period exceeds 9 months is? Light of wavelength 893 nm is incident on the face of a silica prism at an angle of 1 = 55.4 (with respect to the normal to the surface). The apex angle of the prism is = 59 . Given: The value of the index of refraction for silica is n = 1.455. find the angle between the incident and emerging rays. answer in units of degrees. Compare and contrast early anthropoid fossils found in africa and asia. then, discuss two ways in which the anthropoids of the old world differ from the platyrrhines of the new world. A sinusoidal current i= Icoswt has an rms value of I rms = 2.20 A. What is the current amplitude? The current is passed through a full-wave rectifier circuit. What is the rectified average current? Which is larger: or ? Explain. true/false. the poverty line is updated annually to reflect changes in the consumer price index. When Dorothys aunt first came to the area where she lives in The Wonderful of Oz, she was young and pretty. Now she is thin and gaunt. What caused the change in her? Calculate the linear speed due to the Earth's rotation for a person at a point on its surface located at 40 degrees N latitude. The radius of the Earth is 6.40 x 10^6 m Balance the following half-reactions by adding the appropriate number of electrons (e"). Then, classify each reaction as an oxidation or reduction half-reaction 1st attempt Part 1 (2 points) Note that for each of the four reactions, one of the gray boxes will be left blank and the other will be filled with electron(s). Use the symbole to represent an electron ____ + Fe2+ (aq) > Fe3+ (aq) + ___Choose one: - Oxidation - Reduction Part 2 (2 points)___ + Agl(s) > Ag(s) + I- (aq) + ___Choose one: - Oxidation - Reduction Part 3 (2 points)___ +VO2+ (aq) + 2H+ (aq) > VO2+ (aq) +H2O(l) + ___Choose one: - Oxidation - Reduction light of wavelength = 630 nm and intensity i0 = 250 w/m2 passes through a slit of width w = 3.6 m before hitting a screen l = 1.7 meters awayUse the small angle approximation to write an equation for the phase difference, , between rays that pass through the very top and very bottom of the slit when the rays hit a point y - 79 mm above the central maximunm. Imagine a man in the sahara regretting that he had no sand for his hour-glass. what does it means? Match the letters to the correct terms a rectangular wing of aspect ratio 10 is flying at a mach number of 0.6. what is the approximate value of dcl/da Work with nulls and test expressions 12. Write a SELECT statement that returns these columns from the Invoices table: invoice_number invoice_ date balance_due payment_date The invoice_number column The invoice_date column The invoice_total column minus the payment_total and credit_total columns The payment_date column Return only the rows where the payment_date column contains a null value. This should retrieve 11 rows. 1. Suppose you weigh 580.00 Newtons (that is about 130 pounds) when you are standing on a beach near San Diego. How much will you weigh at Big Bear lake, which is about 2000 meters high? 2. A spring, with spring constant k = 0.50 N/m, has an m = 0.20 kg mass attached to its end. During its (horizontal) oscillations, the maximum speed achieved by the mass is Umax = 2.0 m/s. (a) What is the period of the system? (b) What is the amplitude of the motion? Water can be added across a double bond using an oxymercuration-reduction reaction. On the following molecules, select the carbons where OH would be added by this reaction. 1st attempt hi See Periodic Table To select/highlight a carbon, click on it. C Solve the following equation for x, where 0x two narrow slits 70 m apart are illuminated with light of wavelength 550 nm . part a what is the angle of the m = 3 bright fringe in radians? which luxury automaker is preparing to go public, with 911 million shares up for grabs? finding the nullspace of a matrix in exercises 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, and 40, find the nullspace of the matrix.