What are the like terms in the expression: 2a + 3b+ 40 - 5a + 8 - 4
O 2,3,4,-5
O 2a, 3b, 4c
O-5a, 8
O2a, -5a, 8, -4


i need help plzz

Answers

Answer 1

Answer: 2,3,4,-5

Explanation:

it seems that 40 is supposed to be 4c.

the terms can be grouped in several ways

2a, -5a                   Contain factor ‘a’

8, -4.                Simple integers/constants

2a, 4c,  8, -4.          Even numbers

2a, 3b, 4c,  -5a       Contain a factor      

Can’t group on + or - because values of a,b,c are unknown

From the available choices, only 2,3,4,-5 matches a logical group.


Related Questions

PLEASE ASAP NEED HELP PLEASEEE !!!!

Answers

Answer:

Hunting in groups,  keen eyesight, chemicals to paralyze prey

Explanation:

Answer:

Hunting in groups

Keen Eyesight

and Camouflage

Explanation:

These are all the main adaptations that predators are born with. The rest of them do not help them at all. PLease give brainliest :)

Clouds are categorized by their shape and their elevation. Which list shows cloud type in order from lowest to highest in the sky?

Answers

Clouds are categorized by their shape and their elevation. Which list shows cloud type in order from lowest to highest in the sky?

The answer is C ( stratus, altocumulus, cirrus )

Answer: it’s C

Explanation:

What is antibiotic resistance and why should we be
worried?

Answers

Answer: Antibiotic resistance is when bacteria develops a resistance or an immunity against antibiotics. If this evolution/adaptation becomes widespread, our healthcare system could see a mass rise in deaths due to us not being be able to effectively treat the bacteria which is causing harm.

Explanation:

I learned about this

How do fungi and plants differ?

Answers

Answer:

Option 2, i hope that helps instead of my last answer, lol

Answer:

Explanation:

One of the main differences between plants and fungi is that fungi have chitin as a component of their cell walls instead of cellulose. ... Fungi absorb all the nutrients they need from the soil unlike plants which require chlorophyll to conduct photosynthesis.

Hopes this helps tbh-

(Many points) PLS HELP QUICK dont guess answer pls ad dont say random answers for points pls

Cheng made a chart to list the functions of certain fish structures.

(The image below)

Which headings correctly complete the chart?

X: Fin
Y: Swim bladder
Z: Lateral line
X: Fin
Y: Lateral line
Z: Swim bladder
X: Lateral line
Y: Swim bladder
Z: Fin
X: Lateral Line
Y: Fin
Z: Swim bladder

Answers

Answer:

x:fin

y:lateral line

z:swim bladder

Answer: The answer for this question is Fin for x  Lateral line for y and

swim bladder for z

Explanation:

I took the test

There is a belief that there are as many neurons in the human body as there are stars in the Milky Way Galaxy. Do you believe this? How would you react on this?

Answers

Answer:

I do believe this. If you take the amount of neurons in the average adult body and expand them to the size of a say a blueberry It would expand to be the approximately the size of the sun

Explanation:

The given statement is true. It is a surprising fact that helps a person to believe that his brain has the power to take him beyond expectations.

What are Neurons?These are the nerve cell that is found in the brain and nerve tissue in the body.It has been estimated that there are 100 billion neurons in the human brain which is about the number of stars in our Galaxy.The human brain is very complex and this complexity comes from such a huge number of neurons.

Therefore, the given statement is true. It is a surprising fact that helps a person to believe that his brain has the power to take him beyond expectations.

Learn more about the human brain:

https://brainly.com/question/1282105

Why is the human heart cooled for surgery?

Answers

Answer:

By cooling the heart, its need for oxygen is reduced. This allows surgeons to work on the heart for two to four hours without damaging the heart tissue.

Answer: By cooling the heart, its need for oxygen is reduced.

Explanation:This allows surgeons to work on the heart for two to four hours without damaging the heart tissue.

Is energy used or not?

Answers

Answer:

Explanation:

energy is used, everything uses energy especially living organisms

Answer:

Yes energy is used, it can be used in certain ways, like when you are running or walking, guess why you are able to do those because you have energy to do that.

Explanation:

Describe the effects of estrogen on
the developing female reproductive
system.

Answers

Answer:

In females, estrogens affect the ovaries, vagina, fallopian tubes, uterus, and mammary glands. In the ovaries, estrogens help to stimulate the growth of the egg follicle; they also stimulate the pituitary gland in the brain to release hormones that assist in follicular development.

When a human cell divides in mitosis, the two daughter cells will each have: _____

Answers

Answer: In mitosis a cell divides to form two identical daughter cells. It is important that the daughter cells have a copy of every chromosome, so the process involves copying the chromosomes first and then carefully separating the copies to give each new cell a full set. Before mitosis, the chromosomes are copied.


During the photosynthetic process, glucose and what other molecule are created

Answers

durring puberty

Explanation:

Answer:

Oxygen

Explanation:

"Photosynthesis" is a process that is being used by plants in order to sustain their metabolic needs. In order to do this, it converts "light energy" into "chemical energy." There are mainly three things that are needed for the process: sunlight, water and carbon dioxide.

Sunlight (provides light energy) comes from the sun while water is drawn from the plant's roots. The light energy fuels the process. Carbon dioxide, on the other hand, is taken from the air by the plant's leaves. Once these three things are combined, they produce sugar ([tex]C_{6} H_{12} O_{6}[/tex]) and oxygen (6[tex]O_{2}[/tex]). So, the other molecule being asked above is "Oxygen."

⚠️Second time posting this⚠️
Geneticists use Punnett Squares to show all the possible outcomes of a genetic cross and to determine the probability of a particular outcome.
True
or
false

Answers

Answer:

True

Explanation:

Scientists only use punnet squares if they want to determine what the possible outcomes will be for the offspring.

Hope this helps, if it is wrong, I am sorry. T^T

Answer:

   true

Explanation:

Which object is created during the formation of a star​

Answers

Answer:

Protostar

Explanation:

Answer:

The answer is a protostar

Explanation:

what is upwelling?
the productivity of an ecosystem
water moving up from the benthic zone
when infertile species reproduce
the mixing of two biomes

Answers

Answer:

Explanation:

water moving up from the benthic zone

o
1. Which criteria are used to classify amphibians into orders?

Answers

Answer:

They are classified into three orders: frogs and toads, salamanders and newts, and caecilians.

Approximately 8,100 species of living amphibians are known. First appearing about 340 million years ago during the Middle Mississippian Epoch, they were one of the earliest groups to diverge from ancestral fish-tetrapod stock during the evolution of animals from strictly aquatic forms to terrestrial types. Today amphibians are represented by frogs and toads (order Anura), newts and salamanders (order Caudata), and caecilians (order Gymnophiona). These three orders of living amphibians are thought to derive from a single radiation of ancient amphibians, and although strikingly different in body form, they are probably the closest relatives to one another.

Type the correct answer in the box. Spell all words correctly. Which microscope allows two samples to be viewed simultaneously? Forensic scientists use the microscope to view two samples simultaneously at extreme magnification.

Answers

Answer:

Comparison microscope

Explanation:

The correct answer would be the comparison microscope.

The comparison microscope consists of two compound microscopes with a center eyepiece. The eyepiece captures and displays the images from the two microscopes and the observer can compare and contrast for investigative purposes.

The capacity to produce two images for comparison purposes makes the microscope useful in forensic investigations.

2x+3y=12
x-5y=-7
solve simultaneously ​

Answers

Hey this answer your question

What mineral is produced when two atoms of iron Chemically Combined With three Atoms of oxygen

Answers

Answer:

Hematite

Explanation:

Hematite is created with two iron atoms to three oxygen atoms, and magnetite, with three iron atoms to four oxygen atoms,  which are both iron oxides.

Which statement about convection is correct?

A.
This transfer of heat can occur in gases.

B.
This transfer of heat can only occur in solids.

C.
This transfer of heat can only occur in gases and liquids.

D.
This transfer of heat can only occur in liquids.

Answers

C The transfer of heat can only occur in gases liquids I think that’s correct

Help me ASAP! CORRECT ME IF AM WRONG TY BOYS AND GIRLS

Answers

Answer:

CORRECT

Explanation:

1) As altitude increases, what happens to the atmospheric temperature in the following layers:

Troposphere:

Stratosphere:

Mesosphere:

Thermosphere:

Answers

Answer:

troposphere like and comment

1. Would you consider a Zonkey (baby created from a donkey raised with a zebra) alive? Keep in mind that a Zonkey is sterile and cannot produce its own offspring.


2. Would you consider a virus alive? It requires a host completely to live.


Answers

Answer to 1:Yes the Zonkey is alive,not all organisms can reproduce. Some people are born with rare genetics were they can't give birth,so even if the Zonkey is sterile and can't produces it own offspring it is alive.

Answer to 2:Yes a virus is alive,it attacks the host and contains/kill other cells in your body. They also can multiple. If they can multiply and even attack and kill other cells they are alive.

how do photosynthesis and cellular respiration affect the CO2 and O2 in our atmosphere?

Answers

Cellular respiration and photosynthesis are important parts of the carbon cycle. The carbon cycle is the pathways through which carbon is recycled in the biosphere. While cellular respiration releases carbon dioxide into the environment, photosynthesis pulls carbon dioxide out of the atmosphere.

what is unequal sharing of electrons

Answers

Answer:

Covalent bond between two atoms with unequal electronegativities results in unequal sharing of electrons. These types of covalent bonds are called polar bonds because the electron distribution or charge is unevenly distributed or polarized. .

Explanation:

Crossing-over occurs
a. during prophase 2.
c. during prophase I.
b. during fertilization.
d. at the centromere

Answers

C. Prophase 1 crossing over occurs during prophase 1 of meiosis.
Answer : prophase I

Internets prove: Crossing over occurs only during prophase I.
The complex that temporarily forms between homologous chromosomes is only present in prophase I, making this the only opportunity the cell has to move DNA segments between the homologous pair.

I couldn’t fit the whole question in so the last two options are

-Natural disasters are so rare that they have not affected human population very much

-Natural disasters are a concern for human, life and property, but there is nothing we can do to predict them or prepare for them

Im honestly going between the first one and the last

Answers

i don’t know if I’m right but I think the first answer “Natural disasters affect human populations”

What is the role of protein channels in the cell membrane?

Answers

Answer:

protein channels to cell membranes


Mass measures the amount of ______ in a substance
or an object.

a matter
b space
c gravity
d vapour

Answers

Answer:

theianswer to this is A. Matter

Which benefits do mangrove trees provide to surrounding coastal wetlands? Check all that apply.

1 . They hold soil in place.

2 . They store floodwaters.

3 . They maintain surface water flow.

4 . They filter water and improve water quality.

plz help people! :) :( :/ :}

i dont know what to dooo!

Answers

Answer:

1, 2, and 4

Explanation:

1. They hold the soil in place because of their tangled root infrastructure

2. They safeguard the shores from storms, floods

4. They sustain the clarity and quality of water, trapping the sediments and filtering pollutants arising from the land

A scientist is treating rice plants with a chemical that causes mutations. What is the possible benefit of this treatment? A. clones B. transgenic plants C. increased genetic variation D. increased hybridization

Answers

Answer:

Explanation:

Its either B or C, look closely at the question and at the answers, you can narrow it down from then.

A scientist is treating rice plants with a chemical that causes mutations. The possible benefit of this treatment is transgenic plants. Hence, the correct option is B.

What is mutation?

A mutation is a change in the DNA sequence that makes up a gene. It can result from  errors in DNA replication or exposure to mutagenic agents such as chemicals or radiation, or from spontaneous changes.

Transgenic plants are the plants that have been genetically modified to express specific traits or traits that are not found in the original species. This is done by introducing foreign DNA or chemicals that change the plant's genome. This process is called genetic engineering.

Transgenic plants have become an important tool in agriculture and biotechnology, providing new opportunities for food production, environmental protection and economic growth. Hence, the correct option is B.

For more details regarding the mutation, visit:

https://brainly.com/question/21628654

#SPJ6

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