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Brainly.com What is your question? High School Mathematics 5+3 pts Which of the following situations could be represented with the given system of equations? 0.1x+0.6y=0.4(5) x+y=5 A. Eunice needs to combine solutions of 0.1M HCl and 0.4M HCl to produce 5L of 0.6M hydrochloric acid (HCl). B. Eunice needs to combine solutions of 0.1M HCl and 0.6M HCl to produce 5L of 0.4M hydrochloric acid (HCl). C. Eunice needs to combine solutions of 0.4M HCl and 0.6M HCl to produce 5L of 0.1M hydrochloric acid (HCl). D. Eunice needs to combine solutions of 0.1M HCl and 0.6M HCl to produce 4L of 0.5M hydrochloric acid (HCl).


Answered by answersmine AT 22/10/2019 – 02:26 AM

In the equations, the molarity is given as coefficients, x and y are volumes of HCl of different concentrations.  Therefore on the right hand side, molarity is 0.4, volume is 5 L.
The correct answer has a product of 0.4M and 5L.

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In which of the following situations would summarizing be most useful? A. writing a review of a movie B. giving an exact retelling of an event C. reading a high school yearbook D. writing a persuasive essay



In which of the following situations would summarizing be most useful? A. writing a review of a movie B. giving an exact retelling of an event C. reading a high school yearbook D. writing a persuasive essay

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The Roman Empire faced all of the following economic problems during its decline except __________. A. high unemployment B. overspending C. interrupted trade D. the reduction of new resources


The correct answer is A) high unemployment.

The Roman Empire faced all of the following economic problems during its decline except high unemployment.

The Roman Empire decline was due to many reasons. Barbarian tribes invaded Roman territories. The last one was the invasion led by barbaric leader Odoacer, that deposed Emperor Romulus Augustus in 476. Another reason was the overspending in so many wars and trying to defend territories that were so far away from Rome. This caused a financial crisis in the Empire. One more factor was the government corruption that provoked political instability in the Empire.

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Jamal is entering his freshman year of high school. according to eriksons psychosocial stages, jamal is likely to face a(n) ________.



Jamal is entering his freshman year of high school. according to eriksons psychosocial stages, jamal is likely to face a(n) ________.

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Which of the following best describes the 1957 events at Central High School in Little Rock, Arkansas? Governor Faubus resisted the school’s integration with National Guard troops, and President Eisenhower sent federal troops to enforce integration. Under Governor Faubus, Little Rock police first fought, then enforced, the order to integrate the school. President Eisenhower sent National Guard troops to resist the school’s integration, but Governor Faubus obtained a court order to dismiss them. President Eisenhower and Governor Faubus worked together to make the integration process run as smoothly as possible.


The correct answer is  Governor Faubus resisted the school’s integration with National Guard troops, and President Eisenhower sent federal troops to enforce integration.

After the Supreme Court case Brown vs. Board of Education (1954) the federal government called for the desegregation of schools all across America. This included Central High School. Central High School was previously an all white school. After Brown vs. Board of Education ruled segregated schools illegal, 9 black students enrolled at Central High School. These individuals would be known as the Little Rock 9.

After enrolling, these students tried to attend Central High School but were kept out by the national guard troops. This was due to Governor Fabius’s disagreement with integrating white and black schools. However, President Eisenhower enforced the federal ruling by sending in federal troops to enforce the new ruling, allowing black and white students to attend the same school.

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Obesity is to type 2 diabetes as high _____ is/are to atherosclerosis.



Obesity is to type 2 diabetes as high _____ is/are to atherosclerosis.

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What factors led to population growth in the high middle ages?



What factors led to population growth in the high middle ages?

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Which sentence from the essay best conveys the central idea of "Life Without Go Go Boots"? The rest of my life would be endurable if I had a pair of those white, calf-high confections with little black heels I learned what my mother had been trying to tell me all along: high fashion has the shelf life of potato salad. Style is mostly a matter of acting as if you know very well what you look like, thanks, and are just delighted about it I have a feeling the day might come when my daughter will beg to be a slave of conventional fashion.



Which sentence from the essay best conveys the central idea of “Life Without Go Go Boots”? The rest of my life would be endurable if I had a pair of those white, calf-high confections with little black heels I learned what my mother had been trying to tell me all along: high fashion has the shelf life of potato salad. Style is mostly a matter of acting as if you know very well what you look like, thanks, and are just delighted about it I have a feeling the day might come when my daughter will beg to be a slave of conventional fashion.

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In what year were cigarette packages made to include health warning labels that mentioned the Surgeon General? A. 1986 B. 1984 C. 1969 D. 1965 ;)))) (HIGH SCHOOL)



In what year were cigarette packages made to include health warning labels that mentioned the Surgeon General? A. 1986 B. 1984 C. 1969 D. 1965 ;)))) (HIGH SCHOOL)

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Texting is an increasingly popular means of communication with students at Mystic Falls High School. Students text their friends to make plans, ask questions, and share information. However, texting can also be distracting. It takes students' attention away from the primary purpose of school: learning. What is the tone of the article? a) meloncholy b) humerous c) respectful d) critical



Texting is an increasingly popular means of communication with students at Mystic Falls High School. Students text their friends to make plans, ask questions, and share information. However, texting can also be distracting. It takes students’ attention away from the primary purpose of school: learning. What is the tone of the article? a) meloncholy b) humerous c) respectful d) critical

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Miguel has been working hard at football practice he is experiencing and rapid heart rate warm dry skin nausea vomiting headache confusion in a high fever 140°F it is very likely that Miguel is suffering from what heat illness? Heat cramps? Heat exhaustion? Heat stress? Heat stroke?


Answer:

Heat stroke

Explanation:

Since Miguel is out at the field under the hot sun working hard practicing football, it is likely that Miguel is exhausted and very much tired. The water content in his body has decreased drastically. And also since it is very hot, Miguel is likely to suffer from heat stroke as his body temperature has increased at a rapid rate and he is suffering from fever at 140° F, which is a clear sign of heat stroke.

       Heat stroke is a most severe heat attach where the body temperature rises upto 140° F or 40° C or higher. It also leads to body cramps, vomiting and severe headache, increased pulse rate. This is very dangerous and may lead to death. Therefore it is very important to take medical care as soon as possible.

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How can refraining from smoking benefit an individual's health? A. Refraining from smoking reduces an individual's risk of contracting most types of diseases. B. Refraining from smoking eliminates the risk of developing cardiovascular diseases. C. Refraining from smoking eliminates the risk of developing respiratory conditions, such as asthma. D. Refraining from smoking reduces an individual's risk of contracting certain types of diseases. (HIGH SCHOOL)



How can refraining from smoking benefit an individual’s health? A. Refraining from smoking reduces an individual’s risk of contracting most types of diseases. B. Refraining from smoking eliminates the risk of developing cardiovascular diseases. C. Refraining from smoking eliminates the risk of developing respiratory conditions, such as asthma. D. Refraining from smoking reduces an individual’s risk of contracting certain types of diseases. (HIGH SCHOOL)

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Why is water an excellent solvent for most ionic compounds and polar covalent molecules but not for non-polar compounds? A) Water is a polar molecule. B) Water has a charge like an ion. C) Water is a deionizing substance. D) Water molecules have an unusually high kinetic energy in the liquid state.


A)Water is a polar molecule. When talking about solubility, the rule that “like dissolves like” is usually correct. This means that polar substances are soluble in other polar substances. This occurs because the opposite partially charged ends of different polar molecules are attracted to each other. Similarly, the partially charged ends of polar molecules will be even more attracted to the charged ends of an ionic compound’s molecule. This is why,for example, table salt/ NaCl, which is an ionic compound, dissolves in water. 
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From what is known about spring tides and neap tides, you can conclude that a. the sun’s gravity exerts the most power when the moon is on the opposite side of the Earth from the sun. b. the height of high tides varies with the phases of the moon. c. spring tides and neap tides affect the phases of the moon. d. the moon revolves around the Earth every 14 days.



From what is known about spring tides and neap tides, you can conclude that a. the sun’s gravity exerts the most power when the moon is on the opposite side of the Earth from the sun. b. the height of high tides varies with the phases of the moon. c. spring tides and neap tides affect the phases of the moon. d. the moon revolves around the Earth every 14 days.

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PLEASE HELP Mr. Utterson the lawyer was a man of a rugged countenance, that was never lighted by a smile; cold, scanty and embarrassed in discourse; backward in sentiment; lean, long, dusty, dreary, and yet somehow lovable. At friendly meetings, and when the wine was to his taste, something eminently human beaconed from his eye; something indeed which never found its way into his talk, but which spoke not only in these silent symbols of the after-dinner face, but more often and loudly in the acts of his life. He was austere with himself; drank gin when he was alone, to mortify a taste for vintages; and though he enjoyed the theatre, had not crossed the doors of one for twenty years. But he had an approved tolerance for others; sometimes wondering, almost with envy, at the high pressure of spirits involved in their misdeeds; and in any extremity inclined to help rather than to reprove. "I incline to, Cain's heresy*," he used to say. "I let my brother go to the devil in his quaintly 'own way.'" In this character, it was frequently his fortune to be the last reputable acquaintance and the last good influence in the lives of down-going men. And to such as these, so long as they came about his chambers, he never marked a shade of change in his demeanour. No doubt the feat was easy to Mr. Utterson; for he was undemonstrative at the best, and even his friendship seemed to be founded in a similar catholicity of good-nature. It is the mark of a modest man to accept his friendly circle ready-made from the hands of opportunity; and that was the lawyer's way. His friends were those of his own blood or those whom he had known the longest; his affections, like ivy, were the growth of time, they implied no aptness in the object. Hence, no doubt, the bond that united him to Mr. Richard Enfield, his distant kinsman, the well-known man about town. It was a nut to crack for many, what these two could see in each other, or what subject they could find in common. It was reported by those who encountered them in their Sunday walks, that they said nothing, looked singularly dull, and would hail with obvious relief the appearance of a friend. For all that, the two men put the greatest store by these excursions, counted them the chief jewel of each week, and not only set aside occasions of pleasure, but even resisted the calls of business, that they might enjoy them uninterrupted. *The biblical story of Cain and Abel is a story about two brothers who gave offerings to God. Abel’s offering was accepted by God, but Cain’s was not. Jealous, Cain killed his brother. When God asked Cain where Abel was, Cain said, “Am I my brother’s keeper?” By saying this, Cain implied that what his brother did was his own business. (Genesis 4:1-16) What is significant about “Cain’s heresy” in this passage? A.It shows that Mr. Utterson is a deeply religious and righteous person. B.It shows that Mr. Utterson tries not to judge others or get in their business. C.It shows the Mr. Utterson wants to steal from other people’s businesses. D.It shows that Mr. Utterson does not believe in any kind of religion at all.



PLEASE HELP Mr. Utterson the lawyer was a man of a rugged countenance, that was never lighted by a smile; cold, scanty and embarrassed in discourse; backward in sentiment; lean, long, dusty, dreary, and yet somehow lovable. At friendly meetings, and when the wine was to his taste, something eminently human beaconed from his eye; something indeed which never found its way into his talk, but which spoke not only in these silent symbols of the after-dinner face, but more often and loudly in the acts of his life. He was austere with himself; drank gin when he was alone, to mortify a taste for vintages; and though he enjoyed the theatre, had not crossed the doors of one for twenty years. But he had an approved tolerance for others; sometimes wondering, almost with envy, at the high pressure of spirits involved in their misdeeds; and in any extremity inclined to help rather than to reprove. “I incline to, Cain’s heresy*,” he used to say. “I let my brother go to the devil in his quaintly ‘own way.'” In this character, it was frequently his fortune to be the last reputable acquaintance and the last good influence in the lives of down-going men. And to such as these, so long as they came about his chambers, he never marked a shade of change in his demeanour. No doubt the feat was easy to Mr. Utterson; for he was undemonstrative at the best, and even his friendship seemed to be founded in a similar catholicity of good-nature. It is the mark of a modest man to accept his friendly circle ready-made from the hands of opportunity; and that was the lawyer’s way. His friends were those of his own blood or those whom he had known the longest; his affections, like ivy, were the growth of time, they implied no aptness in the object. Hence, no doubt, the bond that united him to Mr. Richard Enfield, his distant kinsman, the well-known man about town. It was a nut to crack for many, what these two could see in each other, or what subject they could find in common. It was reported by those who encountered them in their Sunday walks, that they said nothing, looked singularly dull, and would hail with obvious relief the appearance of a friend. For all that, the two men put the greatest store by these excursions, counted them the chief jewel of each week, and not only set aside occasions of pleasure, but even resisted the calls of business, that they might enjoy them uninterrupted. *The biblical story of Cain and Abel is a story about two brothers who gave offerings to God. Abel’s offering was accepted by God, but Cain’s was not. Jealous, Cain killed his brother. When God asked Cain where Abel was, Cain said, “Am I my brother’s keeper?” By saying this, Cain implied that what his brother did was his own business. (Genesis 4:1-16) What is significant about “Cain’s heresy” in this passage? A.It shows that Mr. Utterson is a deeply religious and righteous person. B.It shows that Mr. Utterson tries not to judge others or get in their business. C.It shows the Mr. Utterson wants to steal from other people’s businesses. D.It shows that Mr. Utterson does not believe in any kind of religion at all.

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Calculate the volume thank you, you are helping me graduate high school



Calculate the volume thank you, you are helping me graduate high school

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Which of the following might a person experience if he is not properly prepared for activity he is participating in? A. High Blood Pressure B. Low Heart Rate C. Increased Flexibility D. Broken Bones



Which of the following might a person experience if he is not properly prepared for activity he is participating in? A. High Blood Pressure B. Low Heart Rate C. Increased Flexibility D. Broken Bones

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Alcohol consumption in teenagers is a problem for families, society and the teens themselves. Approximately 5,000 adolescents die each year as a result of underage drinking. What are other consequences for teens who experiment or abuse alcohol? (HIGH SCHOOL)



Alcohol consumption in teenagers is a problem for families, society and the teens themselves. Approximately 5,000 adolescents die each year as a result of underage drinking. What are other consequences for teens who experiment or abuse alcohol? (HIGH SCHOOL)

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PLEASE HELP!!!!!! The Jonas school district gives awards to its schools based on overall student attendance. The data for attendance are shown in the table, where Low represents the fewest days attended and High represents the most days attended for a single student. School Low High Range Mean Median IRQ σ High School M 128 180 62 141 160 55.5 41.5 High School N 131 180 49 159 154 48.5 36.5 High School P 140 180 40 153 165 32.5 31.5 Part A: If the school district wants to award the school that has the most consistent attendance among its students, which high school should it choose and why? Justify your answer mathematically. Part B: If the school district wants to award the school with the highest average attendance, which school should it choose and why? Justify your answer mathematically.


Answer:

High School P has the most consistent attendance among its students.

School N should be awarded for the highest average attendance.

Step-by-step explanation:

Consider the provided information.

Part A: If the school district wants to award the school that has the most consistent attendance among its students, which high school should it choose and why? Justify your answer mathematically.

Standard deviation (σ) is a measure of how a data set is spread out.

If the standard deviation is low, this implies that the information tends to be near to the set mean, whereas a high standard deviation implies that the information points are spread across a wider spectrum of values.

Therefore, for more consistency we need to look for the low standard deviation.

From the provided table we can see that the school P has low standard deviation (σ) i.e 31.5

Hence, High School P has the most consistent attendance among its students.

Part B: If the school district wants to award the school with the highest average attendance, which school should it choose and why? Justify your answer mathematically.

The formula for mean is:

Mean=frac{x_1+x_2+...+x_n}{n}

Mean is the same as average.

The sum of mean or average will be larger if each students contributes more attendance.

For highest average attendance the school with higher mean should be awarded.

Hence, School N should be awarded for the highest average attendance.

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Read the paragraph. During our summer vacations, we would always go out to our cabin by Butterfly Creek. The trips were always fun and relaxing. We would take hikes, photograph the wildlife, and swim in the river. Wildflowers in high meadows. Butterflies hovering. I still remember the smell of pine canyons when I think about those years. What is the biggest problem with this paragraph?


Answer:

The biggest problem with this paragraph is the “Wildflowers in high meadows. Butterflies hovering” fragments.

Explanation:

A fragment is a group of words that is similar to a sentence in the sense that it starts with a capital letter and ends with punctuation (like a period) but that it is not a sentence as it does not convey a complete idea, thus, they are usually wrong.

The fragments “Wildflowers in high meadows.” and “Butterflies hovering.” are the two errors in the paragraph, and we can correct them by either adding a main clause that completes the idea or adding this fragments to an already-existing main clause.

For example, a way we can fix them are “We would enjoy the view of wildflowers in high meadows and butterflies hovering”.

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Individuals with high blood pressure may benefit from dietary restriction of


1. The answer is “C”.

“Identical twins” who have been raised apart are typically more similar in intelligence level than biological siblings raised together because they have been born with the same genetic code.

Identical twins originate from a single fertilized egg that parts into two. Before it parts, it is either male or female. After it parts, there are either two guys or two females. The two sections of the fertilized egg embed in the uterus and every create one of the twins.  

Identical twins have the equivalent hereditary source. No immediate reason for monozygotic twinning has been resolved; it isn’t innate. Monozygotic twins speak to around 33% all things considered. They may look strikingly comparative, and it might be hard to reveal to them separated.

2. The answer is “A”.

Lawrence Kohlberg felt that one of the only ways individuals will accomplish the objectives in each of his six stages was to participate in “consensus democracy” in small group settings.

Lawrence Kohlberg felt that the best way to support development through these stages was by discourse of good problems and by investment in consensus democracy inside small groups. Consensus democracy was rule by understanding of the gathering, not larger part rule. This would invigorate and widen the reasoning of youngsters and grown-ups, enabling them to advance starting with one phase then onto the next.

3. The answer is “D.  showing a learner how to correct common mistakes”.

The term scaffolding alludes to a procedure in which instructors display or exhibit how to take care of an issue, and afterward venture back, offering support as required. Analyst and instructional architect Jerome Bruner first utilized the term ‘scaffolding’ in this setting, harking back to the 1960s. The hypothesis is that when understudies are given the help they require while discovering some new information, they stand a superior possibility of utilizing that learning freely. Bruner suggests positive association and three methods of portrayal amid educating: activities, pictures, and dialect.  

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An unknown, rectangular substance measures 3.6 cm high, 4.21 cm long, and 1.17 cm wide. if the mass is 21.3 g, what is this substances density (in grams per milliliter)?


This problem is to apply Roult’s Law.

Roult’s Law states that the vapor pressure, p, of a solution of a non-volatile solute is equal to the vapor pressure of the pure solvent, Po solv, times the mole fraction of the solvent, Xsolv

p = Xsolv * Po sol

X solv = number of moles of solvent / number of moles of solution

The solvent is water and the solute (not volatile) is glycerin.

Number of moles = mass in grams / molar mass

mass of water = 132 ml * 1 g/ml = 132 g

molar mass of water = 18 g/mol

=> number of moles of water = 132 g / 18 g/mol = 7.33333 mol

mass of glycerin = 27.2 g

molar mass of glycerin:, C3H8O3: 3 * 12 g/mol + 8 * 1 g/mol + 3*16 g/mol = 92 g/mol

number of moles of glycerin = 27.2g / 92 g/mol = 0.29565

total number of moles = 7.33333 moles + 0.29565 moles = 7.62898 moles

=> X solv = 7.33333 / 7.62898 = 0.96125

=> p = 0.96125 * 31.8 torr ≈ 30.57 torr ≈ 30.6 torr.

Answer: 30.6 torr

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The table below shows data from a survey about the amount of time high school students spent reading and the amount of time spent watching videos each week (without reading): Reading Video 5 1 5 4 7 7 7 10 7 12 12 15 12 15 12 18 14 21 15 26 Which response best describes outliers in these data sets? A) Neither data set has suspected outliers. B) The range of data is too small to identify outliers. C) Video has a suspected outlier in the 26-hour value. D) Due to the narrow range of reading compared to video, the video values of 18, 21, and 26 are all possible outliers.


Answer with explanation:

Arranging the data in ascending order

1, 4,5,5,7,7,7,7, 10,12,12,12,12,14,15,15,15,18,21,26

There are 20 data values in data set.

Mean of data set

=frac{text{Sum of all the data values in the data set}}{text{Total number of values}}\\=frac{225}{20}\\=11.25

Since there are , even number of data values in the data set,

So, Median

=frac{(10th +11th) term}{2}\\=frac{12+12}{2}=12

First Quartile and third Quartile can be calculated directly ,using the concept of even and odd number of Observations in the data set.

Q_{1}=7, Q_{2}=15

Mode> 12

Since data values is negatively skewed, Mean < Median <Mode.

To calculate Outlier

Interquartile Range (IQR)

 =Q_{3}-Q_{1}\\ =15-7\\=8

Also, 1. Q_{1}-1.5 *IQR\\=7-1.5 *8\\=-5\\2. Q_{3}+1.5 *IQR\\=15+1.5*8\\=15+12\\=27

No, value exceeds 27, nor any value is less than -5.

So, there are no outliers in Data set, which has 20 values.

Option A:  Neither data set has suspected outliers.

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End behavior of F(x)=-x^(3-)2x^(2)+7x-10 A. The graph of the function starts high and ends high B. The graph of the function starts low and ends low C. The graph of the function starts high and ends low D. The graph of the function starts low and ends high


Answer:

False

Step-by-step explanation:

Suposse that we are given a function f(x) and a constant value h.

1. Case:

If we take the function g(x)=f(x)+h, then the graph of the function g(x) will be the graph of the funcion f(x) moved up or down.

2.Case:

If we take the function g(x)=hf(x), then the graph of the function g(x) will be the graph of the function f(x) just taller or shorter.

3.Case:

If we take the function g(x)=f(x-h), then the graph of the function g(x) will be the graph of the fuction f(x) moved horizontally.

4. Case:

If we take the function g(x)=f(hx), then the graph of the function g(x) will be tha graph of the function f(x) wither or thiner.

For example:

If we take f(x)=sin(x) and h=2. Then, if we take g(x)=sin(2x) then f(0)=g(0)=0, which means that the graph of the functiction is not moved up or down. However, f(π/2)=sin(π/2)=1 and g(π/2)=sin(π)=0 which gives us a hint that the graph of the function became thiner.

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A regulation soccer goal net is 24 ft wide by 8 ft high. A soccer net for children is 6 ft wide. If the manufacturer wishes to keep the children’s soccer net to scale, how tall should the children’s net be? What is the scale factor? (round answer to two decimal places)


You need to determine the number of ways in which 30 competitors from 50 can qualify. First, you have to realize that the order is irrelevant, that is: it is the same competitor_1, competitor _2, competitor _3 than competitor_3, competitor_2, competitor_1, or any combination of those three competitors.

So, the number of ways is which 30 competitors from 50 can qualify is given by the formula of combinations, which is:

C (m,n) = m! / (n! * (m -n)! )

=> C (50,30) = 50! / (30! (50 – 30)! ) = (50!) / [30! (50 – 30)!] = 50! / [30! 20!] =

 = 47,129,212,243,960 different ways the qualifiying round of 30 competitors can be selected from the 50 competitors.