Hard water, which contains mg2+ and ca2+ ions, tends to form a ring in a bathtub due to its reaction with the soluble anions in soap. The formation of this insoluble material is an example of.

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Answer 1

Answer:

I dont understantd is it mg4

Explanation:


Related Questions

A population of bacteria is 8500 on day 1, 9350 on day 2, and 10,285 on day 3. What will the population be on day 30?.

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Population are often represented using exponential functions

The population of the bacteria on day 30 is 134837

Let x represent the number of days, and y represents the population.

So, we have: (x,y) = (1,8500), (2, 9350) (3, 10285)

An exponential functions is represented as [tex]\mathbf{y = ab^x}[/tex]

So, we have:

[tex]\mathbf{8500 = ab}[/tex]

[tex]\mathbf{9350 = ab^2}[/tex]

Divide both equations

[tex]\mathbf{\frac{9350}{8500} = \frac{ab^2}{ab}}[/tex]

[tex]\mathbf{1.1 = b}[/tex]

Rewrite as:

[tex]\mathbf{b = 1.1 }[/tex]

Substitute 1.1 for b in [tex]\mathbf{8500 = ab}[/tex]

[tex]\mathbf{ 8500 = 1.1a}[/tex]

Divide both sides by 1.1

[tex]\mathbf{ 7727.3 = a}[/tex]

Rewrite as:

[tex]\mathbf{ a = 7727.3 }[/tex]

So, we have:

[tex]\mathbf{y = ab^x}[/tex]

[tex]\mathbf{y = 7727.3 \times 1.1^x}[/tex]

On day 30, we have: x = 30.

So, the equation becomes

[tex]\mathbf{y = 7727.3 \times 1.1^{30}}[/tex]

[tex]\mathbf{y = 134837}[/tex]

Hence, the population of the bacteria on day 30 is 134837

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The need for change to automated sales at bergman’s most likely arises from a(n) ______ force.

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Answer: Outside


Quizlet

The concept of having shared understanding in public speaking is most closely related to which dimension of source credibility?.

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The concept of having shared understanding in public speaking is most closely related to this dimension of source credibility: common ground

Public speaking can be defined as an act of talking or speaking formally to an audience, in order to explain an idea, project, and product.

Source credibility is highly dependent on the level of delivery of a speaker who is speaking to an audience.

In public speaking, common ground is a dimension of source credibility which refers to the concept of having shared understanding between a public speaker and the audience.

In conclusion, a common ground exists when there is shared understanding between a public speaker and the audience.

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This excerpt best illustrates Kurt Vonnegut’s message that everyone in a society should have equal talent and beauty. Advances in technology should be closely monitored. Television viewing limits individual thought and creativity. Absolute equality prevents personal freedoms of expression.

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Answer:d

Explanation: I did it

Answer:

The answer is D

Explanation:

If two populations are merged, each with different frequencies of an allele at a locus, and random mating occurs immediately, how long will it take to achieve a hardy–weinberg equilibrium in the new population?.

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If two populations with different frequencies of an allele at a locus randomly mate, then only ONE generation will take to achieve Hardy–Weinberg equilibrium. This principle is used in population genetics.

The Hardy–Weinberg equilibrium is a principle used in population genetics to calculate allele and genotype frequencies in a population.

The Hardy-Weinberg equilibrium states that allele and genotype frequencies in a population will remain constant from one generation to the next in absence of different evolutionary forces.

The evolutionary forces that may alter the Hardy-Weinberg equilibrium include natural selection, mutations, nonrandom mating, genetic drift, and gene flow.

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What is the difference of the volumes of the two oblique pyramids, both of which have square bases? Round the volumes to the nearest tenth of a centimeter. 2 oblique pyramids with square bases are shown. Pyramid A is a base edge length of 2. 6 centimeters and a height of 2 centimeters. Pyramid B has a base edge length of 2 centimeters and a height of 2. 5 centimeters. 0. 7 cm3 1. 2 cm3 1. 8 cm3 2. 3 cm3.

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Answer:

What brought an end to efforts during the late thirteenth century to form an alliance of European states and the il-khanate of Persia aimed at crushing Islamic forces in the eastern Mediterranean

Explanation:

Antimony (sb) has two stable isotopes with isotopic masses of 120. 9038 u and 122. 9042 u. What is the natural abundance of the heavier isotope?.

Answers

Answer:

average Atomic mass of thallium = 204.38

let heavier isotope is x%  

204.3833 (100) = x(204.9744) + (100-x) 202.9723

20438.33 = 2.0021x + 20297.23

x= 70.476

correct answer is 70.3%

Explanation:

check the pic

Read the excerpt from "Harlem. " Does it stink like rotten meat? Or crust and sugar over- like a syrupy sweet? Read the excerpt from "The Weary Blues. " Droning a drowsy syncopated tune Rocking back and forth to a mellow croon In both poems, Hughes uses the imagery to establish tone. Offer background information. Convey a criticism. Conjure pleasant memories.

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Answer: establish tone

Explanation: ed 2021

There are different kinds of tones. Hughes uses the imagery to establish tone.

What does establishing tone implies?

For one to establish a tone means to set a kind of  quality, feeling, etc., by the approach one use in  speaking or writing.

Tone is known to be an author's attitude toward a specific subject. The tone can be seen by looking at word choices and phrases that is used by the author or looking at the language used.

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Assume the blood pressures of 10 people were measured before and after sleeping for the night. What is the corresponding critical t-value for a one-tailed, paired-samples t test with an alpha level of 0. 05 (5%). Please report your answer as an absolute value and include three decimal places.

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Using a t-distribution table or a t-critical value calculator, the critical value for a one- tailed t - test for the sample given at 0.05 α-level would be 1.833

The critical value for a one-tailed, paired sample t test can be defined thus :

[tex]t_{critical} = t_{α, df-1} [/tex]

Sample size, n = 10

The degree of freedom , df for a 1 - tailed t-test is calculated using the relation :

df = n - 1

Hence,

Degree of freedom, df = n - 1 = 10 - 1 = 9

Using a Tcritical value calculator or a t - distribution table :

[tex]t_{critical} = t_{0.05, 9} = 1.833 [/tex]

Therefore, the critical value for a one - tailed test at 0 05 level of confidence would be 1.833.

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Which monarch was the target of the Gunpowder Plot? A. Elizabeth I B. James I C. Charles I D. Charles II.

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Answer: The answer is B

Explanation: James I

The monarch who was the target of the gunpowder was James I.

James I is the monarch which was the target of the Gunpowder Plot. Hence option B is correct.

What is monarch?

Monarch is defined as a sovereign ruler is someone who has control over a kingdom or empire. A monarch with legal standing. In the United Kingdom, monarchy is the oldest system of government. A king or queen is the head of state in a monarchy. Constitutional monarchies include the British Monarchy. Monarchy, a form of government in which one person has full power or authority.

The Gunpowder Plot of 1605, in which Guy Fawkes and other Catholic conspirators attempted to blow up Parliament and assassinate James I of England, is commemorated on 5 November in Britain on Guy Fawkes Day.

Thus, James I is the monarch which was the target of the Gunpowder Plot. Hence option B is correct.

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How do you embody the burger king® brand values of dreaming big, meritocracy, and authenticity?.

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Burger King's brand values are vital in dictating the company's brand message, meritocracy, and personality.

The brand values of Burger King include dreaming big, meritocracy, and authenticity. They're placed at the core of the brand and dictate the message of the company.

The brand values are vital in shaping the decision-making processes. The brand values of dreaming big, meritocracy, and authenticity are can be applied in the life of an individual as it helps in one's development.

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Dwayne is making a cladogram using a diagonal line. Where should he place the least primitive organism? E A B D.

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Answer:

E

Explanation:

Answer: E

Explanation: edge 2022

Choose the best Spanish equivalent to the phrase I am hungry. Soy sed. Estoy hambre. Tengo sed. Tengo hambre.

Answers

Answer: late but, the answer would be TENGO HAMBRE

Explanation:

Answer: D. Tengo hambre.

Explanation: On Edge!

Which of the following is true if δesys = - 115 j?.

Answers

Answer:

115 j

is true

Explanation:

Thats the true

Which letter shows the type of wave that can be seen by humans.

Answers

Electromagnetic Spectrum

One common attention getter used in a speech introduction is.

Answers

Answer:

Asking a question that you want the audience to answer or consider

Explanation:

Please mark as brainliest if this helped you

Which of the following best describes metal prices?.

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Hard substances that conduct heat and electricity and have a characteristic lustre or shine

Which is an example of a polyatomic ion? H2 CO3- Mg Ne -.

Answers

Answer:

CO3-

Explanation:

What would happen if you did not have the stapedius and tensor tympani muscles?.

Answers

Loud sounds would cause the ossicles to move too much, which would cause damage to the inner ear.

An automated packaging systems is responsible for packing boxes.

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An automated packaging machine is a device mostly found in industrialised environment used to package and seal fast moving consumable goods.

The products could be packaged in sachets or in boxes depending on the type of packaging needed

The various types of packaging are listed bellow

Primary PackagingSecondary Packaging

Primary Package: These are package that are used to enclose the product directly, if the product is edible, the primary package is mostly food safe i.e when it comes in contact with product it does not have any form of harmful effect to the final consumer

Secondary Package: These are packages that are use to enclose are large amount of products are are enclose in a primary package, they are usually in boxes

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What did it mean when foreign diplomats "kowtowed" to the Chinese emperor or his representatives? It meant that diplomats relinquished all their rights in the Forbidden City. It meant that diplomats recognized the superiority of the Chinese emperor. It meant that foreign missionaries could no longer visit China. It meant that diplomats had full trading rights equal to those of China.

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Kowtowing is simply known to be the a form of paying respect. kowtowed to the Chinese emperor or his representatives simply meant that meant that diplomats recognized the superiority of the Chinese emperor.

Kowtow, is commonly said pronounced as kotow.

It is very common to traditional China as a form of respect or reverence. It is known as an act of supplication made by an inferior to his superior through the kneeling and knocking of head to the floor.

It is a traditional forms of reverence. In many scenarios, the standing bow has displaced the kowtow.

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Answer:

B edge 2021

Explanation:

Martin decided to buy 3 bags of grapes weighing 4 1 5 pounds each. How much did all 3 bags of grapes weigh? 1 and one-fifth 7 and one-fifth 12 and one-fifth 12 and three-fifths.

Answers

Answer:

12 3/5

Explanation:

12 3/5 pounds

Step-by-step explanation:

Martin decided to buy 3 bags of grapes.

The weight of each bag = 4\frac{1}{5}451 pounds

We have to calculate the weight of all 3 bags of grapes.

So we multiply 4\frac{1}{5}451 to 3

= \frac{21}{5}521 × \frac{3}{1}13

=  \frac{63}{5}563

= 12\frac{3}{5}1253 pounds

The weight of all 3 bags of grapes were  12\frac{3}{5}1253 pounds.

Answer:

12 3/5

Explanation:

A car is traveling with a constant speed when the driver suddenly applies the brakes, causing the car to slow down with a constant acceleration of magnitude 3. 50 m/s2. If the car comes to a stop in a distance of 30. 0 m, what was the car's original speed?.

Answers

Answer: 14.49 m/s

Explanation:  you would have to use  kinematic equations to solve for the original speed.

v^2 = v0^2 + 2 (a) (x)  where v = 0 since the car stopped

then you would get v0 = sqrt (2(a)(x))

plug in the known values

v0 = sqrt(2(3.50)(30.0))

v0 = 14.49 m/s

So the answer would be 14.49 m/s

A vendor sells hot dogs and s sodas.

Answers

A)100d/(s+2h)

If S is the cost of soda in cents, then

h*2S +s*S = 100*d

S = 100d/(s+2h)

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We should appreciate that the telephone here have been working as efficient as in the past.

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I agree thats is very true

Which of the following statements about the law of acceleration is true.

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Answer:

Acceleration

Explanation:

He has plundered our seas, ravaged our Coasts, burnt our towns, and destroyed the lives of our people. –The Declaration of Independence, Thomas Jefferson Which statement best describes the use of rhetorical appeals in the passage? The passage relies on pathos by listing facts that support Jefferson’s point. The passage relies on ethos by demonstrating why Jefferson is qualified to discuss the issue. The passage relies on pathos by generating sympathy for the American people. The passage relies on ethos by using strong, emotional language.

Answers

Answer:

C- The passage relies on pathos by generating sympathy for the American people.Explanation:

The passage relies on pathos by generating sympathy for the American people is the statement best describes the use of rhetorical appeals in the passage. Thus, option (c) is correct.

What is passage?

The term “passage” refers to the explanation and description of a sentence in relation to a topic. The passage aimed to describe those details related to the theme of the story. The different passage is to justify to the different things as to clarify. The passage is to define the important terms.

According to the given, the passage was the justify the details of the relies in the pathos was the feeling related to the generated the sympathy for the American people. According to this passage's including the pathos, the narrator was expressing the emotions of herself. Pathos was always appealing to emotions, imagination, and also beliefs and values.

Therefore, option (c) is correct.

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Which expression is equivalent to (4 6i)2? –20 48i 8 12i 16 – 36i 20 48i.

Answers

Answer:

The answer is: -20 + 48i

Answer:

A

Explanation:

Which expression is equivalent to (4 + 6i)2?

–20 + 48i

Which statements accurately describe satellite motion? check all that apply.

Answers

What are the options?

Let f be the function defined by f(x)=x3+x2+x. Let g(x)=f−1(x), where g(3) = 1. What is the value of g'(3)?.

Answers

Quick review of the inverse function theorem:

By definition of inverse function,

f(f⁻¹(x)) = x

Differentiating both sides with respect to x using the chain rule gives

f'(f⁻¹(x)) • (f⁻¹)'(x) = 1

so that the derivative of the inverse is

(f⁻¹)'(x) = 1 / f'(f⁻¹(x))

Now if f(a) = b and a = f⁻¹(b), then the theorem says

(f⁻¹)'(b) = 1 / f'(a)

so that

g'(3) = 1 / f'(1)

We have

f(x) = x³ + x² + x   ⇒   f'(x) = 3x² + 2x + 1   ⇒   f'(1) = 3 + 2 + 1 = 6

and so

g'(3) = 1/6

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A banker estimated a customer's worth to be $127,000. The customer was actually worth $120,000.Find the percent error.A. 5.5%B. 5.6%C. 5.7%D. 5.8%Get 50 points for an answer and brainlyiest for explination How can you tell if you are finished solving a polynomial division problem? According to Ainsworth, securely attached children: a. develop psychological disorders during adolescence. b. show severe signs of distress when their mothers leave. c. are closer to their fathers than their mothers. d. seek interaction with their mother upon reunion after separation. Kerry has learned to be afraid of strawberries. Raspberries are very similar to strawberries, and even though Kerry never learned to fear raspberries, she is terrified when she sees them. This is an example of 4. Look at the following table:Summary of Medication Administration: Emergency Room, Mercy Medical Center,August 10, 2014Medication AdministrationPatient NameMedicationAmount GivenTimeRosie EliasTenecteplase (TNK)35 mg10:04 a.m.Albuterol2.5 mg11:15 a.m.Peter MoskowitzPrednisone40 mg12:05 p.m.a. What information do the row and column labels provide? (1 point) Special proteins that bind to enzymes during the cell cycle are calleda.CDKb.Growth promoting factor c.Cyclin d.checkpoint When the delegates to the Constitutional Convention created the presidency, which concept or philosophy was reflected in their final structure Plzzzzz help meee is that the right answer In a recently created group, group members are getting to know about one another and are on their best behavior. This group is MOST likely in the _____ stage of group development. Mr pilgrim needs fencing for his turkey coop the perimeter is 240 yards the length is 16 yards longer than the width What is f(-1)?PLEASE HELP ASAP If gastr/o is the combining form for stomach, what is the medical term that means removal of half of the stomach whats the answer to this? Reeses sister earns $15 per hour. The store offers her a raise - a 6% increase per hour after a raise how much will Reese sister make per hour five friends get together to have a thanksgiving dinner. roger, ted, tom, pam, and donna brought (in no particular order) turkey, salad, dressing, peas, and potatoes. each item was brought on a different colored plate (no particular order) white, purple, black, green, and pink. - no food begins with the same letter as the name of the person who brought it- the dressing was not brought by tom or pam- the person who brought the potatoes and the person who brought the green plate both have names that begin with the same letter- neither rogers plate nor teds plate was purple and the peas were also not brought on the purple plate- toms food and the food on the pink plate are not peas or potatoes- donna did not bring the black platetry to determine the kind of food each person brought and what color plate it was on PLS HELP I NEED THIS DONE TODAY PLSSS WILL GIVE BRAINLY What is the difference between real and apparent weightlessness? What is the slope-intercept form of the equation x + y= -15? 10. A substance needed by the body for growth, energy, repair and maintenance is called a ...............(a) Carbohydrate (c) Calorie (b) Nutrient (d) Protein According to Dalton, atoms cannot be SELECT ALL THAT APPLY a Created b Destroyed c Subdivided d Bonded