what is the solution to the equation below rounded to the correct number of significant figures? 4700 L - 281.4 = _____ L

Answers

Answer 1

Answer:4400

I went over this problem multiple times and I finally found the soultion

Answer 2

The concept of significant figures are mainly used by scientist and engineer to know the significance of digits in a measurement. Therefore, 4400L is the solution to the equation rounded to the correct number of significant figures.

What is significant figures?

Significant figures are the figures that indicate the degree of accuracy of a value. It tells about the precision of a value. It gives an idea about the digits that are necessary to indicate the experimental value.

Rules for counting significant figures are:

Number between 1 to 9 is always significant

Zeroes after a number has got no significance

Zeroes before a number has got no significance

Zeroes between number has got significance

4700 L - 281.4 =4400L

Therefore, 4400L is the solution to the equation rounded to the correct number of significant figures.

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Related Questions

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1 point
Balance the following chemical equation. What are the final coefficients
starting from the left and going to the right? *
AICI:
+
H2O
_Al(OH)3 +
НСІ
1,1,1,1
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2, 2, 2, 2.
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Answers

Answer:

nãosecoi m fazoe isrspoo rqe a perugtunat  iomkplnetacá

Explanationveja  qeuastã onvamoetn e depois recoepe-a qui aipis onãestoácpletoma  :

There are two types of physical changes and chemical reactions- endothermic and exothermic. On the diagram below, which picture (A or B) is endothermic and which picture (A or B) is exothermic? Be sure to explain your reasoning for both.

Answers

Answer:

it is b because its releases heat in to all directions and not b because it staying inside and not releasing anything :)

Explanation:

Answer:

In ice cube heat is taken in absorbed it's an endothermic reaction

In fire heat is given out it is an exothermic reaction

Explanation:

Wanna give you one advice

Exit of heat means exothermic and you can memorize it by

The first word of both word exit ;exo

Hope it helps you

what is ch2cl2 bond angle?

Answers

Answer:

109.5

Explanation:

It's a tetrahedreal with four bonds

Which of the samples pictured is most likely a nonmetal?

A moderately shiny grey mineral.

A very shiny silvery mineral.

A crystalline yellow mineral.

A very shiny golden mineral with many small crystals.

Answers

Answer:

i think it is C

Explanation:

sorry if wrong

How many protons, electrons and neutrons do A nitrogen atom with atomic number 7 and mass number 14

Answers

Answer:

p =7

e = 7

n = 7

Explanation:

proton = atom number

electron = atom number - muatan

neutron = mass nimber - atomic number

What is the name of this ionic compound (Fr2SO4)

Answers

Answer:

3.5: Ionic Compounds- Formulas and Names

Last updatedAug 25, 2020

3.4: An Atomic-Level Perspective of Elements and Compounds

 

3.6: Molecular Compounds- Formulas and Names

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6.9: Binary Ionic Compounds and Their Properties

6.18: Ionic Compounds Containing Polyatomic Ions

Learning Objectives

Derive names for common types of inorganic compounds using a systematic approach

Nomenclature, a collection of rules for naming things, is important in science and in many other situations. This module describes an approach that is used to name simple ionic and molecular compounds, such as NaCl, CaCO3, and N2O4. The simplest of these are binary compounds, those containing only two elements, but we will also consider how to name ionic compounds containing polyatomic ions, and one specific, very important class of compounds known as acids (subsequent chapters in this text will focus on these compounds in great detail). We will limit our attention here to inorganic compounds, compounds that are composed principally of elements other than carbon, and will follow the nomenclature guidelines proposed by IUPAC. The rules for organic compounds, in which carbon is the principle element, will be treated in a later chapter on organic chemistry.

Ionic Compounds

To name an inorganic compound, we need to consider the answers to several questions. First, is the compound ionic or molecular? If the compound is ionic, does the metal form ions of only one type (fixed charge) or more than one type (variable charge)? Are the ions monatomic or polyatomic? If the compound is molecular, does it contain hydrogen? If so, does it also contain oxygen? From the answers we derive, we place the compound in an appropriate category and then name it accordingly.

Compounds Containing Only Monatomic Ions

The name of a binary compound containing monatomic ions consists of the name of the cation (the name of the metal) followed by the name of the anion (the name of the nonmetallic element with its ending replaced by the suffix –ide). Some examples are given in Table  3.5.2 .

Table  3.5.1 : Names of Some Ionic Compounds

NaCl, sodium chloride Na2O, sodium oxide

KBr, potassium bromide CdS, cadmium sulfide

CaI2, calcium iodide Mg3N2, magnesium nitride

CsF, cesium fluoride Ca3P2, calcium phosphide

LiCl, lithium chloride Al4C3, aluminum carbide

Compounds Containing Polyatomic Ions

Compounds containing polyatomic ions are named similarly to those containing only monatomic ions, except there is no need to change to an –ide ending, since the suffix is already present in the name of the anion. Examples are shown in Table  3.5.2 .

Table  3.5.2 : Names of Some Polyatomic Ionic Compounds

KC2H3O2, potassium acetate (NH4)Cl, ammonium chloride

NaHCO3, sodium bicarbonate CaSO4, calcium sulfate

Al2(CO3)3, aluminum carbonate Mg3(PO4)2, magnesium phosphate

Ionic Compounds in Your Cabinets

Ionic Compound Use

NaCl, sodium chloride ordinary table salt

KI, potassium iodide added to “iodized” salt for thyroid health

NaF, sodium fluoride ingredient in toothpaste

NaHCO3, sodium bicarbonate baking soda; used in cooking (and as antacid)

Na2CO3, sodium carbonate washing soda; used in cleaning agents

NaOCl, sodium hypochlorite active ingredient in household bleach

CaCO3 calcium carbonate ingredient in antacids

Mg(OH)2, magnesium hydroxide ingredient in antacids

Al(OH)3, aluminum hydroxide ingredient in antacids

NaOH, sodium hydroxide lye; used as drain cleaner

K3PO4, potassium phosphate food additive (many purposes)

MgSO4, magnesium sulfate added to purified water

Na2HPO4, sodium hydrogen phosphate anti-caking agent; used in powdered products

Na2SO3, sodium sulfite preservative

Table  3.5.3 : Names of Some Transition Metal Ionic Compounds

Transition Metal Ionic Compound Name

FeCl3 iron(III) chloride

Hg2O mercury(I) oxide

HgO mercury(II) oxide

Cu3(PO4)2 copper(II) phosphate

Naming Ionic Compounds

Name the following ionic compounds, which contain a metal that can have more than one ionic charge:

Fe2S3

CuSe

GaN

CrCl3

Ti2(SO4)3

Solution

The anions in these compounds have a fixed negative charge (S2−, Se2− , N3−, Cl−, and  SO2−4 ), and the compounds must be neutral. Because the total number of positive charges in each compound must equal the total number of negative charges, the positive ions must be Fe3+, Cu2+, Ga3+, Cr4+, and Ti3+. These charges are used in the names of the metal ions:

iron(III) sulfide

copper(II) selenide

gallium(III) nitride

chromium(III) chloride

titanium(III) sulfate

Exercise  3.5.1  

Write the formulas of the following ionic compounds:

(a) chromium(III) phosphide

(b) mercury(II) sulfide

(c) manganese(II) phosphate

(d) copper(I) oxide

(e) chromium(VI) fluoride

Answer

(a) CrP; (b) HgS; (c) Mn3(PO4)2; (d) Cu2O; (e) CrF6

Explanation:

The given compound is francium sulfate.

Explanation:

While naming ionic compounds :

First, write the name of cation Then after that name of the anion.

Given

The molecule formula of a compound[tex]Fr_2SO_4[/tex]:

To find:

The name of the given compound formula

Solution:

Cation in formula = [tex]Fr^+[/tex] = Francium cation

Anion in the formula= [tex]SO_4^{-2}[/tex] = Sulfate anion

So, the name of the given compound is francium sulfate.

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Which statement desrcribes an intensive property of matter? -it is the same for every sample of a single substance -it depends on how a substance was formed -it is the same for every sample of every substances -it depends on the amount of substances present

Answers

Answer:

The statement which describes an intensive property of matter is - :

it is the same for every sample of a single substance.

Explanation:

It is the same for every sample of a single substance. -:  Since a substance 's intense property does not depend on either mass or volume, it is the same for each sample of a single substance. Hence , this statement is correct .It depends on how a substance was formed -: Intensive property do not depend upon the amount of the substance or the formation of the sample . Therefore this statement ifs wrong about intensive property .It is the same for every sample of every substances -: This is not possible to be  for every sample of the substance , a every substance have different qualities. Hence this statement is also incorrect.it depends on the amount of substances present -:  This  is the characteristic of a extensive property of matter that relies on the amount  of the material/substance. This assertion is, therefore, not valid.

Hence , the correct option is A (it is the same for every sample of a single substance).

Part 1)
There is a storage container with 5.25 tons of Ammonia (NH3). How many molecules of Ammonia are there?

Answers

Answer:

1.69×10²⁹ molecules.

Explanation:

The following data were obtained from the question:

Mass of Ammonia (NH3) = 5.25 tons

Molecules of Ammonia (NH3) =.?

Next, we shall convert 5.25 tons to grams (g). This can be obtained as follow:

1 ton = 907184.74 g

Therefore,

5.25 ton = 5.25 ton × 907184.74 g / 1 ton

5.25 ton = 4762719.885 g

Therefore, 5.25 tons is equivalent to 4762719.885 g

Finally, we shall determine the number of molecules of ammonia, NH3 in 4762719.885 g. This can be obtained as follow:

From Avogadro's hypothesis, we understood that 1 mole of any substance contains 6.02×10²³ molecules. This implies that 1 mole of ammonia, NH3 also contains 6.02×10²³ molecules.

1 mole of ammonia, NH3 = 14 + (3x1) = 14 + 3 = 17 g

17 g of ammonia, NH3 contains 6.02×10²³ molecules.

Therefore, 4762719.885 g of ammonia, NH3 will contain = (4762719.885 × 6.02×10²³) / 17 = 1.69×10²⁹ molecules.

From the calculations made above,

5.25 tons (4762719.885 g) of ammonia, NH3 contains 1.69×10²⁹ molecules.

What is Chlorofluorocarbons?

Answers

Answer:

Chlorofluorocarbons and hydrochlorofluorocarbons are fully or partly halogenated paraffin hydrocarbons that contain only carbon, hydrogen, chlorine, and fluorine, produced as volatile derivative of methane, ethane, and propane. They are also commonly known by the DuPont brand name Freon.

Explanation:

Answer:

Explanation: Chlorofluorocarbons and hydrochlorofluorocarbons are fully or partly halogenated paraffin hydrocarbons that contain only carbon, hydrogen, chlorine, and fluorine, produced as volatile derivative of methane, ethane, and propane. They are also commonly known by the DuPont brand name Freon

hope that helps.↑

How many carbon atoms are there in 2.23 grams of propane (C3H8)?​

Answers

Answer:

3.05x10²³ (3 sig. fig.)

Explanation:

Propane (C₃H₈) is a colorless alkane gas with three carbons and eight hydrogen atoms. In 2.23 grams of propane, there are 3.05 x 10²³ carbon atoms present.

What is the number of particles/atoms?

The number of atoms or the particles being the smallest units is estimated by the product of the number of moles and Avogadro's number.

The Avogadro's number (Na) is used to determine the number of particles that have been present in a mole of a substance. A mole of a substance is said to have 6.022 × 10²³ ions, atoms, electrons, molecules, etc.

Moles of propane are calculated as,

Moles = mass ÷ molar mass

= 2.23 ÷ 440.094

= 0.05057

Now, the number of particles is calculated as,

Number = moles × Avogadro's number

= 0.05057 × 6.022 × 10²³

= 3.05 x 10²³

Therefore, 3.05 x 10²³ carbon atoms are present in 2.23 grams of propane.

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Which statements about scientific explanations are true?
I. Scientific explanations must prove that a hypothesis is true.

II. Scientific explanations should be based on evidence or data.

III. Scientific explanations must have logical and consistent arguments.

IV. Scientific explanations should use scientific principles, models, and theories.

Answers

Answer:

The statement that is true is:

II. Scientific explanations should be based on evidence or data.

                                                                                     ~Lylliara Jackson~

6. Now, revise your definition for waves to include energy and matter.

A wave is a phenomenon that...

Answers

Answer:

A wave is phenomenon that transfers energy from one point to another through a disturbance without affecting the matter.

Explanation:

A wave is phenomenon that transfers energy from one point to another through a disturbance without affecting the matter.

There are two main types of waves Longitudinal waves travels parallel to their source. For example, sound waves. Through a series of rarefactions and compressions, longitudinal waves are propagated. Transverse waves travel perpendicular to their source.

Which statement about aldehydes and ketones is correct?

A) In aldehydes, the carbon is always joined to at least one hydrogen atom.

B)Every ketone molecular formula is unique.

C) Aldehydes are similar to ketones, but their carbonyl group is located in the middle of the carbon chain.

D) In ketones, the carbon of their carbonyl group is bonded with one other carbon.

Answers

Answer:

A) In aldehydes, the carbon is always joined to at least one hydrogen atom.

Explanation:

Aldehydes and Ketones are organic compounds.

The main difference between them is that aldehydes have the carbon atom attached to at least one hydrogen atom.

In ketones, the carbon is attached to another carbon.

The IUPAC names of alkanals usually end with -eFor alkanones usually end with -one

To reiterate, the striking difference between the two families is that in alkanals, a hydrogen atom is directly attached to the carbonyl group while in alkanones, no hydrogen atoms is attached to the carbonyl group but two bulky alkyl groups.

List the steps of how a virus is able to infect your cells

Answers

Answer:

Key Points

Viral replication involves six steps: attachment, penetration, uncoating, replication, assembly, and release.

During attachment and penetration, the virus attaches itself to a host cell and injects its genetic material into it.

5. The diagram above shows what happened when an irregular solid was immersed in water. This irregular solid has the same mass as a gold block, which is 2 cm wide by 2 cm high by 5 cm long. Using the method described in the passage, compare the density of the unknown with the density of gold.
A. Equal to gold
B. Less than gold
C. Greater than gold
D. Cannot be determined​

Answers

The answer is going to be C hope this helps please make me a Brainly

The density of the unknown will be greater than the density of gold.

An overview will be given since the diagram isn't given. The formula to calculate the density of an irregular shape will be the mass divided by the volume.

The density is the mass per volume. From the information given, since they've the same mass, then it means that the volume of the gold will be more than the volume of the unknown. Therefore, the density of the unknown will be greater than gold.

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Two compounds of phosphorus and fluorine have the following
mass ratios.
Compound 1: 10.14 g fluorine for every 3.38 g phosphorus
Compound 2: 8.42 g fluorine for every 4.21 g phosphorus
Find the whole number ratio of masses of fluorine in compound
1 to compound 2.

Help me please

Answers

Answer: 3:2

Explanation: (10.14÷3.38)÷(8.42÷4.21)=1.5=3/2

Which statement about the masses of subatomic particals is true?
A. Electrons and neutrons have similar masses.
B. Neutrons and protons have similar masses.
C. Electrons, protons and neutrons have similar masses.
D. Electrons, protons and neutrons have very diffren´t masses.

Answers

the answer is D, all of them have very different masses

Oxygen atoms have six outer electrons

Write the symbol for an oxide ion.

Answers

Answer:

[tex]O^{2-}[/tex] is the symbol for an oxide ion

50 POINTS: PLEASE ANSWER AS QUICK AS POSSIBLE!

Question:

After getting their results in, a group of scientists went back and looked at their study. As planned, their experiment consisted of three groups. The first group received a new medicine at a normal dose, the second group received the medicine at half the dose, and the third group received the medicine at twice the dose.

Which of the following best describes what went wrong with the scientists’ study?


Choices:

- an improper experimental procedure

- the lack of a control group

- selection bias

- human error

Answers

Explanation:

The lack of a control group

The answer would be “the lack of a control group.” To make the results more accurate, the scientists should have used a placebo group to use as a comparison.

Is the study of the living plants and animals in the ocean

Answers

Answer:

marine biologist

Explanation:

marine biologist

Answer:

marine biologist a scientist who studies creatures that live in ocean water, from bacteria and shellfish to kelp and whales. mean One of several measures of the “average size” of a data set. .organism Any living thing, from elephants and plants to bacteria and other types of single-celled life.

I am tryna make sure of my answer is this correct

Answers

i think it is but i don’t truly know-

Answer:

great job!!

Explanation:

ALL IS CORRECT :)

what is biogas, biomass and biodigester​

Answers

Answer:

Biogas is a type of biofuel that is naturally produced from the decomposition of organic waste. When organic matter, such as food scraps and animal waste, break down in an anaerobic environment (an environment absent of oxygen) they release a blend of gases, primarily methane and carbon dioxide.

Explanation:

Biomass is renewable organic material that comes from plants and animals. ... Biomass contains stored chemical energy from the sun. Plants produce biomass through photosynthesis. Biomass can be burned directly for heat or converted to renewable liquid and gaseous fuels through various processes.biodigester is like a mechanical stomach. It is fed with organic material, which is broken down (decomposed) by micro-organisms (bacteria) is an oxygen-free (anaerobic) environment to produce a renewable energy called biogas (methane and carbon dioxide) and other material that is mainly used as fertilizer.

Explanation:

Biogas is a type of biofuel that is naturally produced from the decomposition of organic waste.

Biomass is plant or animal material used for energy production, or in various industrial processes as raw substance for a range of products.

A Biodigester simply means a tank which digests organic material biologically. In this sense, the FilterPod is a biodigester. However, many people think of a biodigester as a tank which digests, anaerobically, without air, organic material and produces methane gas for cooking, lighting and heating ect.

How many electrons are there in the only energy level of helium, a noble gas? * Two Three Six Eight​

Answers

Answer:

Explanation:

Noble gases are the least reactive of all known elements. That's because with eight valence electrons, their outer energy levels are full. The only exception is helium, which has just two electrons.

Destructive forces can include floods, landslides, tornadoes, tsunamis, wildfires and
volcanoes.
True
False

Answers

Answer:

answer is true

Answer:

True

Explanation:

The
force acting on an object is the combination of
all of the individual forces acting on it.
Check it
2 SCRATCHPAD
~ Improve this questio

Answers

Answer:

Yes as you can improve The invisible to human eye force or physical force if any being applied to a object of any mass and with all individual forces as they are acting on this object

Explanation:

Which element is this.Its shiny,Is solid at room temperature, has atoms with two valence electrons?A:Lithium B:Strontium C:Aluminium D:Silicon

Answers

Answer:

Strontium

Explanation:

STRONTIUM

Strontium is a chemical element that is non radioactive and its occur naturally. It is a shiny and silvery white metal that have atomic number of 38 and it belong to group 2 member of the periodic table which is why it have two valence electrons. It is a solid metal at room temperature.

About 99% of Strontium is found in bones. It help to make new bones in humans by replacing the old bones.

Therefore, it is strontium.

Strontium is the element which is shiny, solid at room temperature and has two electrons in its outermost shell.

The atomic number of Strontium is 38. In the first shell, there are two electrons, in the second and fourth shell has space for 8 electrons so these shells are filled with electron whereas third shell has 18 electrons and the fifth shell has 2 electrons. Strontium belongs to second group i.e. alkaline earth metals due to which it has two valance electrons in its outermost shell.

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The volume of a candy bar is 55cm^3. The mass of the candy bar is 70g. What is the density of the candy bar in g/cm^3

Answers

Answer:

1.3 g/cm3

Explanation:

clarify the following expression s
a.atomic number
b.mass number
c.nucleus​

Answers

Answer:

Atomic number of a chemical element is the number of protons found in the nucleus of every atom of that element.

The mass number, also called atomic mass number or nucleon number, is the total number of protons and neutrons in an atomic nucleus.

The atomic nucleus is the small, dense region consisting of protons and neutrons at the center of an atom.

Predict how James will improve the view of the sample. How will the magnification and resolution of the image change?

Answers

Answer:

answer questions brain

Which of the following is true about metals?
A. They are usually less reflective in luster than metalloids.
B.
They are usually better conductors than nonmetals.
C. They are usually less malleable than nonmetals.
D.
They are usually more brittle than metalloids.

Answers

B. They are usually better conductors than nonmetals
Other Questions
How do I solve both of the scenarios Lesson4Words to KnowUnderstanding the following words will help you read this lesson:TERMS & NAMESprimary sourcesecondary sourceoral historyHow HistoriansStudy the PastBuild on What You Know You may know where your parents or ancestors came from and some of the stories about them. Relatives and their stories help people understand their family history. Now learn what historians use to help them understand the past.Understanding the PastESSENTIAL QUESTION What questions do historians ask to help them understand the past?People investigate their family history to find out about their ancestors. In the process, however, they also find out about themselves. We study world history for the same reasons.Why Study History? What has already happened to a person, a family, or asociety affects what will occur today and in the future. But history is much more than simply recounting and studying past events. Examining a historical event also involves studying a societys culture, religion, politics, and economics.When historians examine past events, they try to find patterns. They look for causes and effects that explain how and why events happened. They also try to understand why some ideas and traditions last and why others die out. Just as important, historians attempt to see the past through the eyes of the people who lived it. By doing so, historians gain greater insight into human nature and answer important historical questions.Asking Historical Questions As historians study the past, they ask themselves questions like those below. These questions help historians compare different societies and draw conclusions about the past. How have groups or societies interacted, and what have been the results? How have leaders governed societies? How have belief systems developed and changed? How have societies dealt with differences among their people? How have societies tried to protect peoples security? How are societies similar and different?Why do we study history?The Historians ToolsESSENTIAL QUESTION What methods do historians use to help them answer questions about what happened in the past? When you hang up a picture, you use a hammer to pound in the nail. Historians also use tools to do their job. These tools include primary sources, secondary sources, and oral history.Primary Sources A primary source is something written or created by a person who witnessed a historical event. You will learn about an ancient primary source on the next page. Primary sources include letters, diaries, eyewitness articles, videotapes, speeches, and photographs. Artifacts, such as the human-made tools, are also primary sources.loading...How Knowledge of the Past ChangesESSENTIAL QUESTION What steps do historians take as they answer historical questions?Detectives use fingerprints and other evidence to solve crimes. Historians act as detectives too. They use evidence from primary, secondary, and oral sources.Fact or Fiction? Historical evidence isnt always as simple as a bloodstain at a crimescene. Historians sometimes have more information than they can use when they try to answer a question. They must sort through all of the information and choose whats most important and most trustworthy as evidence. In addition, sometimes what historians thought was true turns out to be false. For instance, one historian proved that the so-called mummyscurse was false. According to legend, the curse would kill anyone who entered the tomb of an ancient Egyptian ruler. Many people believed the curse had caused the death of English archaeologist Lord Carnarvon. He died suddenly in 1923, shortly after entering the tombof ancient Egyptian ruler King Tut. People believe that the other archaeologists who had entered the tomb between 1923 and 1926 would also die as a result of the curse. However, a historian later examined the archaeologists death records. Their average age at death was70 years. The evidence did not support the existence of the mummys curse.Drawing Conclusions The mummys curse was easy to disprove. But not all historical questions are so easily answered. Sometimes different historians arrive at different conclusions based on the same facts.Answer the following questions2. What is the difference between primary and secondary sources? Help me find the slope of this problem ?? Calculate the number of moles in 2.60 grams of SnO2 ? Please show your work to receive credit. Whats this called Please ASAP Does anyone know this answer !!!!!! Every year, management and labor renegotiate a new employment contract by sending their proposals to an arbitrator, who chooses the best proposal (effectively giving one side or the other $3 million). Each side can choose to hire, or not hire, an expensive labor lawyer (at a cost of $300,000) who is effective at preparing the proposal in the best light. If neither hires a lawyer or if both hire lawyers, each side can expect to win about half the time. If only one side hires a lawyer, it can expect to win nine tenths, or 0.9, of the time. Use the given information to fit in the expected payoff, in dollars, for each cell in the matrix. Management (M) No Lawyer Lawyer No Lawyer L: M: S L: S M: SLabor (L) Lawyer L: M: S L: S M: S The Nash equilibrium for this game is for Management to_____a lawyer, and for Labor to_____a lawyer. A hairdresser is deciding to open her own studio. If the hair dresser chooses Location A she will pay $1200 in rent and will earn $45 perhaircut. If she chooses Location B, she will pay $1800 in rent and will earn $60 per haircut. How many haircuts would she have to give to makethe same profit in either location? which branch of government is responsible for making and passing laws What does the underlined word mean in the following sentence?-> El estudiante tiene un mal resfriado.a) coldb) breathc) hoarsed) pain What are the effects of microorganisms (bacteria, protits, and fungi) in the day to day activity of farmers (+16) + (-32) =A -12B 14C -16 what special function does the spleen of the seal do A-5-B when A=9 and B=-4 Which table represents a linear function?answers are in the picture plz help im timed why should we treat a 14 year old offender differently than a 24 year old offender??you have to read the paragraph and answer the question you deposit 10000 into a bank account. the account pays 4 annual interest compounded quarterly. find the balance after 5 years. Paleomagnetism is the study of I need help plz and plz explain why plz In a bag full of beans and rice, the ratio by weight of beans to rice is 2 to 9. If the bag has a total weight of 3 kilograms, how many kilograms of beans are there in the bag? (round to nearest thousandths)