John believes that the amount of sleep he gets the night before a test and his score on that test are inversely related. On his first exam, he got eight hours of sleep and scored 70 on the exam. To the nearest tenth, how many hours does john believe he must sleep the night before his second exam so that the average of his two exam scores is an 80?.
John will need to sleep for 10.3 hours before his second exam so that the
average of his two exam scores is an 80.
We were given
8 hours of sleep = 70
To get average of 80
70+ x = 80
2
Cross multiply:
70+x = 160
x= 160-70
= 90.
If 8 hours of sleep = 70
x hours of sleep = 90
Cross multiply
8× 90 = 70 × x
720 = 70x
x = 720/70
x = 10.2857
≈ 10.3 hours of sleep
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What is the approximate length of arc s on the circle below? use 3. 14 for pi. Round your answer to the nearest tenth.
Which statements describe us national security after 2001? choose two correct answers.
Answer:
1 AND 7
Explanation:
The US focused national security efforts on fighting terrorism. The US military invaded Afghanistan to fight al-Qaeda and the Taliban. Hence option 4 and 5 is correct.
What is terrorism?Terrorism is defined as the intentional use of criminal violence to incite a condition of panic or fear, usually in order to further political or religious objectives. The improper application of force or violence against individuals or property with the intent to intimidate or coerce a government, the general public, or any segment thereof, in support of political or social objectives.
They saw the necessity to increase security awareness in the nation after Al-Qaeda struck the United States on September 11, 2001. The level of national security increased as a result. More precautions were taken in an effort to thwart any potential factors that could trigger similar attacks in the future.
Thus, the US focused national security efforts on fighting terrorism. The US military invaded Afghanistan to fight al-Qaeda and the Taliban. Hence option 4 and 5 is correct.
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Which of the following variables would be appropriate for a bar graph?.
Answer: your not showing any variables
Explanation:
Given the function f(x) = 0. 5|x – 4| – 3, for what values of x is f(x) = 7?.
Answer: hello mister, i am here today to give you the greatest answer you have ever seen in the history of answers. The answer to this question is I do not fudging know!!! go back to elementary where this math belongs. I am a former Military General and even I know this stuff and even I know this stuff.
Explanation:
What evidence do the positions of the peaks and dips in its spectrum provide about an object?.
The positions of the peaks and dips in its spectrum provide evidence about the ELEMENTAL COMPOSITION of an object. Each element can absorb light at determined wavelengths.
Each element can absorb light rays at determined wavelengths because elements are composed of different atoms.
Spectroscopy is a field of study focused on the interaction between the atoms of an element and electromagnetic radiation as a function of the wavelength.
This field (spectroscopy ) studies the absorption and emission spectra of light by matter, which can be used to determine the elemental composition of an object.
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Which of the following best characterizes the french revolution brainly.
Answer:
Violent
Explanation:
best characterized the French Revolution
What is the slope of the line that passes through (5 4) and (7 10).
Answer:
m=y2-y1/x2-x1=10-4/7-5
=6/2
=3
slope =3
Madame pouchets home is called.
Answer:
Villa of Green Happiness.
Explanation:
In colonial america who were the sons of liberty brainly.
Suppose you start to eat some potato chips from an open bag that you found in your locker and noticed that the chips taste and smelled unpleasant. What process has resulted from the unpleasant chips?.
rancidity . reason : bcz it is the aerial oxidation of oil and fats present in the chips .
The number of employees in a company decreased from 40 to 28. What is the percentage decrease in the number of employees?.
Answer:
Answer: 30% decrease
Explanation:
[tex] = { \rm{ \frac{(40 - 28)}{40} \times 100\%}} \\ \\ = { \rm{30\%}}[/tex]
The number of employees in a company decreased from 40 to 28
[tex]=\frac{(40-28)}{40} \times 100 \%$$=30 \%[/tex]
percentage decrease in the number of employees is 30 % .
What is a percentage?percentage, a relative value indicating hundredth parts of any quantity. One percent (symbolized 1%) is a hundredth part; thus, 100 percent represents the entirety and 200 percent specifies twice the given quantity. percentage. Related Topics: mathematics percentile.
What is percentage and example?One percent (1%) represents the one hundredth, 2 percent (2%) represents two hundredths, 100% represents the whole, 200% twice the given quantity and so on… For example - 1 percent of 1000 mangoes is equal to 1/100 of 1000 or 10 mangoes.
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In passage 2, how does the phrase "the city's tumult," (line 3) contrast with the author's observations of the doves?.
There are different kinds of phrases. The phrase "the city's tumult," (line 3) contrast with the author's observations of the doves as the noise and confusion of the city is contrasted with the peacefulness of the doves.
A Phrase is known to be a group of words that comes together to make meaning, but it is known to not be a complete sentence.
The city's tumult is very different from the author's observations of the doves this is because doves are peaceful and calm creatures and have nothing to do with tumult.
See full question below
In Passage 2, how does the phrase "the city's tumult," (line 3) contrast with the author's observations of the doves?
The overfed people are contrasted with the doves that rely on breadcrumbs for food.
The noise and confusion of the city is contrasted with the peacefulness of the doves.
The isolation of people living lonely lives is contrasted with the socialness of the doves.
The lives of people who must walk and drive on the ground are contrasted with the lives of doves and their ability to fly.
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It is estimated that 32 patrons will attend an event for every $100 spent in advertising. If tickets cost $75, how much can a promoter expect to increase sales if he spends $25,000 in advertising?.
In order to increase sales if he spends $25,000 in advertising, the promoter should be expecting 600,000 dollars
If It is estimated that 32 patrons will attend an event for every $100 spent in advertising.
The cost of tickets = $75,
If he spends $25,000 in advertising, divide the amount by 100 dollars
25000/100 = 250
This means 32 x 250 = 8000 patrons is estimated to attend an event.
Since each ticket cost 75 dollars, then, the promoter should expect to increase sales by multiplying 75 dollars by 8000 patrons. That is,
75 x 8000 = 600,000 dollars
Therefore, the promoter should be expecting 600,000 dollars to increase sales if he spends $25,000 in advertising.
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Which of the following best represents a plan for choosing a cardiofitness activity?.
Answer:
Either compare multiple aerobic activities and choose an activity suited for personal goals or avoid comparing aerobic activities and choose an activity suited for personal goals.
Which of the four substances has the lowest density.
Answer:
ice, wax,Alcohol, i think
How did the new jersey plan address the issue of representation brainly.
Answer:
By thinking Their brain is very Big that's how i think so
Answer:
That's the answer thanks for the points
Explanation:
Hope it helps
If you suspect information has been improperly or unnecessarily classified what should you do first.
If you suspect that an information has been improperly or unnecessarily classified, the first action you should take is to: Discuss your concerns with your security manager or supervisor.
An information can be defined as a data or group of data that has been processed and it is available for beneficial use by an end user.
Generally, there are two (2) main categories of information and these include:
Classified information: it contains sensitive information and as such, it is restricted to authorized users only.Unclassified information: it can be accessed and used by everyone (general public).For security purposes, if you suspect that an information has been improperly or unnecessarily classified, the first action you should take is to immediately discuss your concerns with your security manager or supervisor.
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A food worker takes three hours to reheat a pot of soup for a buffet to 165°f (74°c).
An action the food worker must take next is to throw the soup out.
Food preservation is an art that typically involves the process of preventing food spoilage by mitigating or reducing the activities (growth) of microbial organisms and other external factors while maintaining the nutritional value, flavor and texture of a food.
Some of the common factors that result in food spoilage include the following:
TemperatureOxidationMoisture contentPathogens (microorganisms) such as yeast, molds, bacteria, etc.A soup is an example of a time/temperature control for safety (TCS) foods because they are more susceptible to the growth of pathogens (microorganisms) such as yeast, molds, bacteria, etc.
For TCS foods, it is important that they are cooled from 135 Fahrenheit (°F) to 70 Fahrenheit (°F) within two (2) hours, else, it must be thrown out. Since this food worker took three (3) hours to reheat the pot of soup to 165°F (74°C), he or she must throw the soup out because it has exceeded the minimum time required for TCS foods.
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Which statement describes the system of equations 3x-4y=-35.
Answer:
The system of equations is one solution.
The term commonly used in accounting to describe the format for recording a transaction is:.
Answer:
General ledger
Explanation:
General ledger is used to record all of a companies transaction
How did using metal help ancient chinese people increase food production.
How many newtons of force are needed to accelerate a 1,875 kg object at a rate of 1. 5 m/s2?.
Answer:
2812.5 N
Explanation:
We know that
F = ma
F = 1875 × 1.5
F = 1875 × 15/10
F = 2812.5 N
Answer:
Hope this helps
Explanation:
2812.5N
Which is the primary characteristic of all physical and digital sales channels?.
Physical and digital sales channels often has different characteristics. Business-to-Business is the primary characteristic of all physical and digital sales channels.
A B2B is simply known as "business-to-business" company that often helps to give services or products to other businesses.
The B2B sales is described as when firm's selling its supplies or parts to another firm. The term is comprise of all companies that produce products and services that is aimed toward other businesses. Examples are SaaS products, B2B marketing firms etc.
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Answer:
B2B
Explanation:
I took the test and got it right
In the following citation for a website which detail is optional according to mla style.
The detail that is optional according to MLA style is: 6 Mar. 2014.
In the Modern Language Association style for citing websites, it is optional to input the date that the information was accessed. It is not a requirement but it is highly recommended.
Also note that when citing the URL's, the https:// should be omitted. URL's are important in these citations.
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Answer:
mappinc link
Explanation:
Where are 2 places you can search for apps that work with quickbooks online?.
Based on the application analysis, the 2 places you can search for apps that work with QuickBooks online are QuickBooks App Store and QBO account.
The Steps to search for apps that work with QuickBooks online
Go to QuickBooks Apps.Select a specific Categories section.Click the Get app now button.In the option of the QBO account. Do the following:
Go to the Apps menu.Download the App through the category button.Hence, in this case, it is concluded that the correct answer is "QuickBooks App Store and QBO account."
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Write a function called has_duplicates that takes a string parameter and returns true if the string has any repeated characters. Otherwise, it should return false.
The function to solve the algorithm that is required to return Boolean (True of False) if the parameter contains duplicate character will be implemented using the Kotlin Programming Language.
// Here is the algorithm
fun has_duplicates (parameter: String) : Boolean{
for (i in parameter.size-1){
if(parameter[i]==parameter[i+1]){
return true
} else{
return false
}
}
}
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When o2 is released as a result of photosynthesis it is a direct by-product of.
Answer:
answer is water molecules
Explanation:
The oxygen evolved during photosynthesis comes from water molecules.
Answer:
The O2 released in photosynthesis comes from the H2O, not the CO2. This was proved by radioactive isotopes. I think this is what you are asking.
Walter and Trina are planning a campus event focused on equity and inclusion. Several students would like to help with the event by delivering speeches. Which of the following speeches would NOT be aligned with the topics of equity and inclusion?
Equal access and opportunities in fine arts
The importance of untimed tests for all students
Equality is not equity
Diverse voices in the college curriculum
The following speech is not necessary aligned with the topics of equity and inclusion that are planned for the event:
The importance of untimed tests for all students.The speech can be considered related to equity because it is about all students, but the topic it talks about is not a very important problem in relation to inclusion and equity. However, all the other options are related.
Inclusion means that everyone is included, no one is left out. Equity means that everything is the same for every one, there are no preferences, everything is fair for everyone.
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In a class of 19 students, 12 are female and 13 have an a in the class. There are 4 students who are male and do not have an a in the class. What is the probability that a student chosen randomly from the class does not have an a?.
Answer:
probability (student doesn't have an a)=6/19