What is 7-?=4 i need help

Answers

Answer 1

Answer:

3

Explanation:

7-3=4

Answer 2

Answer:

3

Explanation:

Because when you do 7 - 3 it gives you 4. You check this by adding 4 to 3 and you will get 7. Also you can figure it out the number by subtracting 7 and 4 to get your answer.

Your answer will be 3.

I hope this helped. I am sorry if you get this wrong. Have a wonderful day.


Related Questions

A team of engineers is tasked with designing a hydraulic engine for a motorboat that is as efficient as possible. Identify three of the
seven design phases, and explain why they are individually important in the design process.
Help ASAP!

Answers

Answer:

Driving surface area as subject to differential pressuresHow to achieve continuous rotationMechanical connections

Explanation:

The general stages of thinking when designing a system are;

First understanding the problem that requires you to design a solutionDefining the problem that needs to be solved. In this case is to design an efficient hydraulic engine for a motorboatResearch to find any available solutions for similar problemsIdea of the solutionA prototype to try solve the challengeSelecting and adjusting the prototype as you implement the solution.

For a hydraulic engine design, the following designing parts are vital;

Driving surface area as subject to differential pressuresHow to achieve continuous rotationMechanical connection

Pressures are important due to motor displacements. Fuel burns in the cylinder to cause power through fuel gases burning and expansion which is the four-stroke cycle. Continuous rotation will come in the design considerations through reciprocating motions of pistons into rotary motions. Mechanical connections are vital especially in crank shaft turns, gear box that turns horizontal motions to spinning motions and finally the propeller that drives the boat on the water.

Answer:

Which of the following describes efficiency?

the ability to increase heat production

the ability to increase productivity

the ability to complete fuel extraction safely

the ability to produce something without waste

Explanation:

A vernier caliper will measure in what ( URGENT)

Answers

A typical digital vernier caliper will read in
.001 or thousands of an inch

DRIVERS ED
You are the passenger in a truck that approaches a flashing red railroad signal. The driver looks at you and says, "Dare me to drive around this gate before the
train comes?" What would be your advice to the driver if you want to get to your destination safely?
Yeah! Go for it, you can beat the train!
Sure, go ahead, the train doesn't seem to moving that fast anyway
You need to start slowing down, it's dangerous and illegal to drive around or under an active crossing gate.

Answers

Answer:

You need to start slowing down, it's dangerous and illegal to drive around or under an active crossing gate.

Explanation:

No matter what even if u are impatient when those lights start flashing u need to just immediately stop and just wait for it to pass. that's how many crashed have happen cause people want to play "let's race the train and see if i can make it". just because the train looks slow and looks as if it isn't moving that fast it's going atleast 190-200 mph if it's a high speed and no matter what u cant escape it. We want u home in one piece, just wait !!

Which of the following are benefits of the Python programming
language? Check all that apply.
It is free to use.
It saves programmers time.
It is known for its symbols.
It is relatively easy to learn.

Answers

Answer: A) it is free to use

B) It saves programmers time

D) It is relatively easy to learn.

Explanation:

Answer:

A, B, and D

Explanation:

Fred wants to help his customer understand his vision for constructing the office interior. Which visual representation will best explain Fred’s ideas?
A.
structural
B.
perspective projection
C.
auxiliary view
D.
cutting-plane view
E.
elevation drawing

Answers

Answer:

D. cutting-plane view

Explanation:

When using the cutting plane view, cutting plane lines are utilized to show a plane or planes in which a sectional view is shown. Section views give a clear indication of interior views of an object or structure including hidden parts  or features which are not directly visible through convectional ways such as direct observation.

Which option identifies the type of engineer most likely to be in charge in the following scenario?

A cell phone company wants to offer expanded coverage in the Andes Mountains in South America. The company hires a team of engineers to prepare a feasibility study.

civil
mechanical
agricultural
electrical

Answers

Answer:

civil engineering

Explanation:

they have survey and do construction

Answer:

its civil engineering

Hand-held cutoff wheels can be powered by electricity or air.
True or false

Answers

true............................

Answer:

True!

Explanation:

The denominator of a fraction is 4 more than the numenator. If 4 is added to the numenator and 7 is added to the denominator, the value of the fraction 1 half find the original fraction.

Answers

Answer:

[tex]\frac{3}{7}[/tex]

Explanation:

Lets take the numerator of the fraction to be = x

So the denominator of the fraction is 4 more than the numerator = x+4

The fraction is ;[tex]\frac{x}{4+x}[/tex]

Now add 4 to the numerator and add 7 to the denominator as;

[tex]\frac{x+4}{4+x+7} =\frac{x+4}{x+11}[/tex]

This new fraction is equal to 1 half =1/2

write the equation as;

[tex]\frac{x+4}{x+11} =\frac{1}{2}[/tex]

perform cross-product

2(x+4 )=1( x+11 )

2x+8 = x + 11

2x-x = 11-8

x=3

The original fraction is;  

[tex]\frac{x}{4+x} =\frac{3}{3+4} =\frac{3}{7}[/tex]

Many industries require that engineers become licensed by passing two examinations administered by the state. Which of the following identifies the exam they need to pass first?

Online Institute of Engineers (OIE) exam
Fundamentals of Engineering (FE) exam
Professional Engineering (PE) exam
Professional Engineering Fundamentals (PEF) exam

Answers

Answer:

according to my calculation the answer is PE  

Explanation:

Answer:

FE

Explanation:

Many industries require that an engineer become a licensed engineer by passing two examinations administered by the state. The first is the Fundamentals of Engineering (FE) exam, which can be taken immediately after graduation. The second is the Professional Engineering (PE) exam, which is taken after the engineer has acquired several years of work experience.

What type of engineer develops and tests catalytic converters for automobile engines?

agricultural
mechanical
civil
electrical

Answers

Mechanical - Reasoning, out those 4 answers agricultural does farming, mechanical is a wide variety but could be combustion enginees, civil is construction, electrical well is electrical

When your car is broken down on the side of the road, you should make your vehicle as _____ as possible.
A. visible
B. comfortable
C. cooled
D. loud

Answers

Answer:

Visible

Explanation:

If your car is not visible you will get hit

Visible is correct because you want the other cars to notice you so there will be no accident

The correct name for a “shooting star” is a:

Answers

Answer:

There is no "correct" name, but the scientific name could be meteorite.

Answer:

Meteor

Explanation:

Which of the following might a biomedical engineer be involved in?

study of lions in the African grasslands
analysis of how organisms work
biological modeling of neural networks
study of environmental depletion

Answers

C: biological modeling of neural networks

Neuroengineering is a discipline that falls under the BME field.

Which of the following describes the first and foremost guideline in dimensioning?
O legibility
accuracy
measurement
O sketching

Answers

Answer:

Accuracy

Explanation:

Just took the test

# 17
It is best practice to never change the default password and
name of your router.
O False
O True
Read Question

Answers

Answer:

  FALSE

Explanation:

It is best practice to ALWAYS change the password of your router to something other than the default.

_____

Leaving the password as the default leaves the router open to exploitation by hostiles.

That’s False.

This is because passwords should be changed at least once a month so all of your files and your computer itself will be safe. Also it is a good idea to change your router name.

Hope this helps!

A material's Unwillingness to
be drawn, stretched or formed.
Breaks easily

Answers

Answer:

Brittle

Explanation:

A brittle material is one that shows unwillingness to be drawn, stretched or formed. These materials are opposite of ductile ones{copper & aluminum} that can be formed into sheets or drawn into wires. A brittle material is hard but liable to break easily. Example of material include : cast iron, ceramics and concrete.

What is the first component to install in steel stud framing system?

Answers

fast shipping ,high quality product, fastan the floor and ceiling tracks ,

Which best describes the charting method of note-taking?
O It requires more writing than other note-taking methods.
O It shows the most relevant information in a clear way.
O It does not show connections between facts and details.
O It does not rely on awareness of the categories covered.

Answers

The practice of taking notes is the process of capturing information from many sources and platforms. The correct option is B.

What is Note-taking?

The practice of taking notes is the process of capturing information from many sources and platforms. By taking notes, the writer captures the substance of the material, relieving their mind of the burden of recalling everything.

The best description of the charting method of note-taking is that it shows the most relevant information in a clear way.

Hence, the correct option is B.

Learn more about Note-taking:

https://brainly.com/question/26039794

#SPJ2

I need to drop 10 V to feed an LED from a 12 V power supply. The resistor value is 490 Ω. How much of my battery power will be wasted in the resistor?

Answers

Answer:

P = 0.204 W

Explanation:

Given that,

Voltage drop is 10 V to feed an LED from a 12 V power supply. The resistor value is 490 Ω.

We need to find how much of my battery power will be wasted in the resistor. The power of a battery is given in terms of voltage and resistance is given by :

[tex]P=\dfrac{V^2}{R}[/tex]

V is the voltage drop to feed an LED

Putting all the values,

[tex]P=\dfrac{(10)^2}{490}\\\\P=0.204\ W[/tex]

So, 0.204 W of power will be wasted in the resistor.

What equipment is generally used in the tool room to cut high speed tool bits?

Group of answer choices

Abrasive saw

Band saw

Torch

Hack saw

Answers

Answer:

The answer is A Abrasive Saw

3. All of the following are wire protection devices except:
(A) heat shrink tubing.
(B) Flux
(C)liquid electrical tape,
(D) wiring harness,

Answers

Answer:

c is the onr correct answer

Answer:

liquid electrical tape

Explanation:

Which option identifies the type of engineer described in the following scenario?

A team of engineers is working on a project to design a new medical drink to fight the AIDS epidemic in Africa.

electrical
mechanical
chemical
agricultural

Answers

The answer is Mechanical

Answer:

i do  believe that would be chemical

Explanation:

Which verbal communication technique is best suited to getting to know someone you just met?
O Open-ended questioning
O Closed-ended questioning
O Conflict resolution
O Mediation

Answers

Answer:

Closed-ended questioning

Explanation:

"Closed-ended questioning" is a type of questioning that requires a short response/answer, such as a one-word answer or a "Yes" or "No." This is a suitable type of questioning when meeting a person for the first time, since it is not appropriate yet to be questioning about lengthy topics.

Examples of this type of questioning:

How old are you?

Where do you live?

Do you like having a pet?

what are the three basic electrical characteristics of a complete electric circuit?

Answers

Answer:

Explanation:

A simple electric circuit consists of a source (such as a battery), wires as conducting medium and a load (such as a light bulb). The battery provides required energy for flow of electrons, to the light bulb.

Answer:

Every electric circuit, regardless of where it is or how large or small it is, has four basic parts: an energy source (AC or DC), a conductor (wire), an electrical load (device), and at least one controller (switch).

Explanation:

Give an example of how the fields of science, technology, and mathematics are commonly used when building a highway

Answers

Answer:

Engineering is the application of science and math to solve problems. ... Engineers use science and math to come up with practical solutions to problems. ... Station, but they are also building maps to the human genome and better, ... work in businesses related to their areas of specialization;

Example

hope this helps

What is matrix ? answer plzzz 27 point you got answer​

Answers

Answer:

A matrix is a convenient and useful way of representing a graph to a computer. ... Matrices lend themselves easily to mechanical manipulations. Besides, many known results of matrix algebra can be readily applied to study the structural properties of graphs from an algebraic point of view.

Matrix is an arrangement of numbers into rows and columns. Make your first introduction with matrices and learn about their dimensions and elements. A matrix is a rectangular arrangement of numbers into rows and columns. For example, matrix A has two rows and three columns.

Securing doors and windows are necessary when leaving your vehicle.

Select one:
TRUE
FALSE

Answers

Answer:

True

Explanation:


Why is the definition for second based on the Cesium 133 atom?
The rate of vibrations of the atoms is fixed.
The rate of vibrations of the atoms is consistent.
The rate of vibrations of the atoms is precise.
The rate of vibrations of the atoms is easily observed.

Answers

Answer:

  The rate of vibrations of the atoms is consistent

Explanation:

A second is defined as 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom.

The definition applies when the atom is in isolation at a temperature of absolute zero. Adjustments must be made for the conditions that can be maintained in practice.

Such radiation is determined by the laws of quantum mechanics, so is extremely consistent.

Looking at what others in the engineering field have done to solve problems is called?
A.swiping.
B.force fit.
C.inversion
D.plagiarism.

Answers

Answer:

Swiping

Explanation:

One of the methodologies we use to solve problems

When using a Drill Press the speed of the drill should be
O a. slowed to be neat and safe
b. made faster to finish quicker
c. left alone, the speed does not matter
d. adjusted based on the hardness of the material

Answers

The speed on most drill presses is adjusted by moving the drive belt from one pulley to another. In general, the smaller the pulley on the chuck axis, the faster it spins. A rule of thumb, as with any cutting operation, is that slower speeds are better for drilling metal, faster speeds for wood. So maybe D
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