Answer:
2.8%, and 3.2%
Step-by-step explanation:
Buyer's real estate agent:
9522.80 ÷ 340100.00 = 0.028 = 2.8%
Seller’s real estate agent:
10883.20 ÷ 340100.00 = 0.032 = 3.2%
Evaluate the expression 3x (x+4), for x=5 show and explain your steps
Answer:
27
Step-by-step explanation:
3 x ((5) + 4)
3 x 9 =27
Linda purchased a prepaid phone care for $15. Long distance calls cost 18 cents a minute using this care. Linda used her card only once to make a long distancecal. If the remaining credit on her card is $8.16, how many minutes did her call last?
Answer:
her last call was 38 minutes
Explanation:
Given;
Long distance calls cost 18 cents a minute = $0.18 per minute
Initial credit = $15
Final credit after call = $8.16
The amount of credit C used to make the long distance call is;
C= initial - final credit
C = $15 - $8.16
C = $6.84
Then the number of minutes N used can be calculated by;
\(N=\frac{C}{R}\)R = rate = $0.18 per minute
substituting we have;
\(\begin{gathered} N=\frac{6.84}{0.18} \\ N=38 \end{gathered}\)Threrefore, her last call was 38 minutes
Behavioral scientists want to test whether classical music has a relaxing effect on patients with extreme anxiety. They decide to consider sleepiness as an indication that the patient is relaxed.
They randomized 100 patients in a hospital between a treatment group and a control group, and they put the groups in separate rooms. The treatment group had classical music playing in its room whereas the control group had a day without music.
The results of the experiment show that the mean portion of time the treatment group spent sleeping that day was 15 minutes greater than the mean portion of time the control group spent sleeping. To test whether the results could be explained by random chance, the scientists created the table below, which summarizes the results of the 1,000 rerandomized trials of the data (with differences of means rounded to the nearest 5 minutes).
Treatment Group Mean − Control Group Mean Frequency
−25 5
−20 25
−15 69
−10 122
−5 168
0 201
5 177
10 147
15 56
20 27
25 3
According to the simulations, what is the probability that the treatment group mean is greater than the control group mean by 15 minutes or more, and what can be concluded regarding this result? Assume a probability of less than 5% is significant. (7 points)
The probability that the treatment group mean is 15 minutes or greater than the control group mean is 8.6%, and the results suggest that classical music makes anxious people sleepier
The probability that the treatment group mean is 15 minutes or greater than the control group mean is 3.0%, and the results suggest that classical music makes anxious people sleepier
The probability that the treatment group mean is 15 minutes or greater than the control group mean is 0.3%, and the results suggest that classical music makes anxious people sleepier
The probability that the treatment group mean is 15 minutes or greater than the control group mean is 8.6%, and the results suggest that the original difference of means could be the result of random chance
To determine the probability that the treatment group mean is 15 minutes or greater than the control group mean, we need to analyze the frequencies provided in the table.
From the table, we can see that there are 56 instances where the difference of means is 15 minutes.
Additionally, there are 27 instances where the difference of means is greater than 15 minutes.
To calculate the probability, we sum up the frequencies for differences of means that are 15 minutes or greater:
Frequency = 56 + 27 = 83
Now, we divide the frequency by the total number of rerandomized trials (1,000):
Probability = Frequency / Total number of trials = 83 / 1000 = 0.083
Converting to a percentage, the probability is 8.3%.
Therefore, the correct answer is:
The probability that the treatment group mean is 15 minutes or greater than the control group mean is 8.3%, and the results suggest that the original difference of means could be the result of random chance.
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Place the following in order from least to greatest. −2/3 , - .6, - 62 %, - .61
Answer
-0.6, -0.61, -62%, -2/3
Explanation
-2/3 turn into decimal so...
-2/3 = -0.67
-62% oso turn onto decimal...
-62% = -0.62
thn rearrange all the numbers from least to greatest.. thn u will get the ans..
The clearinghouse and research center on servant leadership is now called a. The Center for Applied Ethics b. The Service and Leadership Center c. The Greenleaf Center for Servant Leadership d. The Center for Service and Ethical Behaviors
The clearinghouse and research middle on servant management is now called c. The Greenleaf Center for Servant Leadership.
The middle turned into named after Robert K. Greenleaf, who first brought the idea of servant leadership in his essay "The Servant as Leader" published in 1970. The Greenleaf Center for Servant Leadership serves as a worldwide useful resource for promoting the knowledge and exercise of servant leadership.
It conducts studies, provides educational applications, and gives a platform for individuals and businesses to study and interact with servant management ideas. The middle's recognition is on nurturing moral and compassionate management that prioritizes the nicely-being and growth of individuals and the groups they serve. Through its initiatives, the Greenleaf Center pursuits to inspire and empower leaders to create a superb and impactful exchange by embracing the servant management philosophy.
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The clearinghouse and research center on servant leadership is called The Greenleaf Center for Servant Leadership.
The clearinghouse and research center on servant leadership is called The Greenleaf Center for Servant Leadership. It is a nonprofit organization that was founded in 1964 by Robert K. Greenleaf. The center is dedicated to promoting the principles of servant leadership, which emphasizes serving others and putting their needs first.
The Greenleaf Center conducts research, provides resources and training, and serves as a hub for individuals and organizations interested in servant leadership.
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The function h is defined by the following rule
h(x)=-5x+5
Complete the function table down below
Visitors to a carnival can buy an unlimited-ride pass for $50 or an entrance-only pass for $20. In one day, 282 passes were sold for a total of $10,680. The following system of equations models this scenario:
50x + 20y = 10,680
x + y = 282
How many unlimited-ride passes were sold?
114
146
168
212
Answer:
168 unlimited-ride passes.
Step-by-step explanation:
50x+20y=10680
x+y=282
Multiply.
20(x+y=282)
20x+20y=5640
Subtract.
50x-20x+20y-20y=10680-5640.
30x=5040
x=168
Hope this helps plz hit the crown :D
It's C, I took the test and got it right.
The plot shown below describes the relationship between students' scores on the first exam in a class and their
corresponding scores on the second exam in the class.
Which of the following is the best estimate of the average change in the score on Exam 2 associated with a 1
point increase in the score on Exam 1?
Choose 1 answer:
1
point
1
point
NI
C 1 point
2 points
How do you find f (- 4 on a graph?
To find f (-4) on a graph, plot the point (-4, f (-4)) on the graph.
B. First, identify the point (-4, 0) on the x-axis. This is the point where the x-coordinate is -4. Then, draw a line perpendicular to the x-axis that passes through the point (-4, 0).
This line represents the function f (x). Use the equation of the line to determine the value of f (-4). For example, if the equation of the line is y = 3x + 7, then the value of f (-4) is -5.
To plot the point (-4, f (-4)) on the graph, simply draw a dot at the intersection of the line and the y-axis, with the y-coordinate being f (-4). This dot represents the point (-4, f (-4)).
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find the primary shear (′) in the weld as a function of the force f.
The primary shear (′) in the weld can be expressed as a function of the force f using the formula ′ = f / (t * L), where t is the thickness of the weld and L is the length of the weld.
The formula ′ = f / (t * L), where t is the weld's thickness and L is its length, can be used to express the primary shear (′) in a weld as a function of the force f.
Therefore, as the force f increases, the primary shear in the weld will increase proportionally.
Primary shear, a type of stress that develops when pressures are applied in opposition to one another along parallel planes or parallel surfaces, describes the deformation of a material under shear stress. Prior to other types of deformation, like bending or twisting, becoming substantial, primary shear is the sort of shear deformation that first takes place in a material. The material fails along planes that are perpendicular to the direction of the shear stress as a result of primary shear, which causes the material to deform. In engineering and materials science, a material's capacity to withstand primary shear is a crucial characteristic that impacts its strength and toughness.
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a radiator contains 9 liters of a 25% antifreeze solution. how much should be drained and replaced with pure antifreeze to produce a 55% antifreeze solution? (round your answer to two decimal places.)
Answer: 3.6L
Step-by-step explanation:
ill give brainliest If the circumference of a circle is approximately 200 square feet, what is the RADIUS?
Given: CF bisects AD.47°B479DFWhich triangle congruence theorem or postulatecould be used to prove AABC = ADBF?O Angle-Side-Angle (ASA)Side-Side-Side (SSS)Side-Angle-Side (SAS)Angle-Angle-Side (AAS)
1) First, from the picture we see that we have two equal angles: ∠A = ∠D = 47°.
2) Secondly, We also know that the line CF bisects AD.
3) Finally, the two opposite angles of B are equal, we call these angles ∠B.
From (1)-(2)-(3) we conclude that the answer is: angle-side-angle (ASA).
For example, we have the side/line AB between angles ∠A and ∠B.
A flagpole that is 4.5 m tall is represented in a picture as being 1.5 cm in height. What is the scale factor?
The scale factor is:
The scale factor of the flagpole is 1/300.
What is a scale factor?A scale factor is a representative factor that can be used to either increase or decrease the size of a given object. This is majorly used in scale drawing.
scale factor = length on drawing/ original length
Given a flagpole of height 4.5 m but represented as 1.5 cm, then;
1.5 cm = 0.015 m
Then;
scale factor = 0.015/ 4.5
= 15/ 4500
= 1/ 300
The scale factor of the representation in the picture is 1/300.
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Which table shows y as a function of x ?
Answer: H
Step-by-step explanation:
Becuase it is the only one were x doesnt have the same number twice
In the table H, for every value of y there is a unique value of x, therefore option H is correct.
Step-by-step explanation:
In this question we have to go through the option and find the the correct answer.
In the table F, for two or more values of y the value of x remains unchange , therefore thios option is incorrect.
In the table G, for the y values -1 and 5 the value of x is -1 (unchanged) , therefore this option is also incorrect.
In the table H, for every value of y there is a unique value of x, therefore option H is correct.
In the table J, for the y values 0 and 6 the value of x is 0 (unchanged) , therefore this option is also incorrect.
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In XYZ, ZY = 78°. XY=9, and XZ= 12. To the nearest tenth, what is m
The measure of angle Z is 47.19°.
What is Law of Sines?Law of sines is defined as that ratio of the length of the sides of a triangle to the sine of the angle opposite to the these sides are equal.
That is, if a, b and c are sides opposite to the angles A, B and C respectively, then,
a / sin A = b / sin B = c / sin C
Given a triangle XYZ.
m ∠Y = 78°, XY = 9, XZ = 12
We have to find the measure of angle Z.
Using the law of sines,
XZ / sin Y = XY / sin Z
12 / sin (78°) = 9 / sin Z
Cross multiplying,
12 × sin Z = 9 × sin (78°)
sin Z = (9 × sin (78°)) / 12
sin Z = 0.7336
Z = sin⁻¹ (0.7336)
Z = 0.8236 radians
= 47.19°
Hence the measure of Z is 47.19°.
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find series solution for the following differential equation. your written work should be complete (do not skip steps).y'' 2xy' 2y=0
To find the series solution for the differential equation y'' + 2xy' + 2y = 0, we can assume a power series solution of the form:
Now, substitute y(x), y'(x), and y''(x) into the differential equation:
∑(n=0 to ∞) aₙn(n-1) xⁿ⁻² + 2x ∑(n=0 to ∞) aₙn xⁿ⁻¹ + 2 ∑(n=0 to ∞) aₙxⁿ = 0
We can simplify this equation by combining the terms with the same powers of x. Let's manipulate the equation step by step:
We can combine the three summations into a single summation:
∑(n=0 to ∞) (aₙ₊₂(n+1)n + 2aₙ₊₁ + 2aₙ) xⁿ = 0
Since this equation holds for all values of x, the coefficients of the terms must be zero. Therefore, we have:
This is the recurrence relation that determines the coefficients of the power series solution To find the series solution, we can start with initial conditions. Let's assume that y(0) = y₀ and y'(0) = y'₀. This gives us the following initial terms:
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The calculation of SNN distance does not take into account the position of shared neighbors in the two nearest neighbor lists. In other words, it might be desirable to give higher similarity to two points that share the same nearest neighbors ranked higher in the nearest neighbor lists. Describe how you might modify the definition of SNN similarity to achieve that. Justify your modification.
By incorporating this information into the similarity measure, we can produce more accurate and informative results in clustering and classification tasks.
To modify the definition of clustering similarity to take into account the position of shared neighbors in the two nearest neighbor lists, we can introduce a weighting factor that considers the rank of the shared neighbor in each list. This can be achieved by multiplying the regular SNN similarity value by a weight factor that is calculated as the reciprocal of the sum of the ranks of the shared neighbors in the two lists. For example, if two points have a shared neighbor that is ranked 2nd in one list and 3rd in the other list, the weight factor would be 1/(2+3) = 0.2. This weight factor would then be multiplied by the regular SNN similarity value to produce a modified SNN similarity score that gives higher similarity to points that share the same nearest neighbors ranked higher in the nearest neighbor lists. This modification is justified because it takes into account the fact that having shared neighbors that are ranked higher in the nearest neighbor lists is a stronger indicator of similarity than having shared neighbors that are ranked lower.
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The equation of the line with an x intercept of 4 and a slope of 1.5
Answer:
y=1.5x+4
Step-by-step explanation:
5. A dining room chair has four legs.
You begin placing chairs around a
table that seats five people.
Answer:
20
I assume the question asks how many chair legs there are in total.
If a chair has four legs and you have five chairs, you would multiply 5 times 4.
5 times 4 = 20
Find f(1), f(2), f(3), f(4), and f(5) if f(n) is defined recursively by f(0) = 3 and for n = 0,1,2,....
(a) f(n+1) = -2f(n)
(b) f(n+1) = 3f(n) +7
(c) f(n+1) = f(n)^2 – 2f(n) – 2
(d) f(n+1) = 3^J(n)/3
The values of function being changed according to the recursive formulae a) f(1) = -6, f(2) = 12, f(3) = -24, f(4) = 48, and f(5) = -96, b) f(1) = 16, f(2) = 55, f(3) = 172, f(4) = 523, and f(5) = 1576, c) f(1) = 1, f(2) = -3, f(3) = 13, f(4) = 141, and f(5) = 19597.
Let's find the values of f(1), f(2), f(3), f(4), and f(5) for each of the given recursive definitions:
(a) f(n+1) = -2f(n)
Using this recursive formula, we can calculate the values as follows:
f(1) = -2f(0) = -2(3) = -6
f(2) = -2f(1) = -2(-6) = 12
f(3) = -2f(2) = -2(12) = -24
f(4) = -2f(3) = -2(-24) = 48
f(5) = -2f(4) = -2(48) = -96
Therefore, f(1) = -6, f(2) = 12, f(3) = -24, f(4) = 48, and f(5) = -96.
(b) f(n+1) = 3f(n) + 7
Using this recursive formula, we can calculate the values as follows:
f(1) = 3f(0) + 7 = 3(3) + 7 = 9 + 7 = 16
f(2) = 3f(1) + 7 = 3(16) + 7 = 48 + 7 = 55
f(3) = 3f(2) + 7 = 3(55) + 7 = 165 + 7 = 172
f(4) = 3f(3) + 7 = 3(172) + 7 = 516 + 7 = 523
f(5) = 3f(4) + 7 = 3(523) + 7 = 1569 + 7 = 1576
Therefore, f(1) = 16, f(2) = 55, f(3) = 172, f(4) = 523, and f(5) = 1576.
(c) f(n+1) = f(n)² – 2f(n) – 2
Using this recursive formula, we can calculate the values as follows:
f(1) = f(0)² - 2f(0) - 2 = 3² - 2(3) - 2 = 9 - 6 - 2 = 1
f(2) = f(1)² - 2f(1) - 2 = 1² - 2(1) - 2 = 1 - 2 - 2 = -3
f(3) = f(2)² - 2f(2) - 2 = (-3)² - 2(-3) - 2 = 9 + 6 - 2 = 13
f(4) = f(3)² - 2f(3) - 2 = 13² - 2(13) - 2 = 169 - 26 - 2 = 141
f(5) = f(4)² - 2f(4) - 2 = 141² - 2(141) - 2 = 19881 - 282 - 2 = 19597
Therefore, f(1) = 1, f(2) = -3, f(3) = 13, f(4) = 141, and f(5) = 19597.
Therefore, The values of function being changed according to thr recursive formulae a) f(1) = -6, f(2) = 12, f(3) = -24, f(4) = 48, and f(5) = -96, b) f(1) = 16, f(2) = 55, f(3) = 172, f(4) = 523, and f(5) = 1576, c) f(1) = 1, f(2) = -3, f(3) = 13, f(4) = 141, and f(5) = 19597.
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What is the law of large numbers?
If you were using the relative frequency of an event to estimate the probability of the event, would it be better to use 100 trials or 500 trials? Explain.
The Law of Large Numbers is a fundamental concept in probability theory and statistics stating the number of trials of a random event increases, the average of the outcomes approaches the expected value of the event. It's better to use 500 trials.
In other words, as we repeat an experiment a large number of times, the proportion of times that a certain outcome occurs will converge to its probability of occurrence. This is an important concept in statistical inference, as it helps to ensure that the results of a sample are representative of the population from which it was drawn.
Now, if you were using the relative frequency of an event to estimate the probability of the event, it would be better to use 500 trials rather than 100 trials. The reason is that the larger the number of trials, the more accurate the estimate of the probability is likely to be.
Using a larger sample size reduces the impact of random variation and provides a more precise estimate of the true probability. The Law of Large Numbers tells us that as the sample size increases, the relative frequency of the event should converge to the true probability, so a larger sample size will generally give a more reliable estimate
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a wire whose length is given as x inches is bent into a square. express the length of a side of the square in terms of x.
Therefore, the length of a side of the square is x/4 inches by the equation.
In this context, we have a wire that we need to bend into a square. A square has four equal sides, so if we let s be the length of one side of the square, then the total length of the wire must be 4s.
The equation 4s = x represents this relationship, where x is the total length of the wire.
To solve for s, we can isolate s on one side of the equation by dividing both sides by 4. This gives us:
4s / 4 = x / 4
Simplifying, we get:
s = x / 4
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Anthony is a waiter at a restaurant. Each day he works, anthony will make a guaranteed wage of $35, however the additional amount that anthony earns from tips depends on the number of tables he waits on that day. From past experience, anthony noticed that he will get about $7 in tips for each table he waits on. How much would anthony expect to earn in a day on which he waits on 20 tables? how much would anthony expect to make in a day when waiting on tt tables?.
Anthony's expected earning would be $175 in a day when he waits in 20 tables.
According to the question,
We have the following information:
Each day Anthony works, Anthony will make a guaranteed wage of $35, however the additional amount that Anthony earns from tips depends on the number of tables he waits on that day. From past experience, Anthony noticed that he will get about $7 in tips for each table he waits on.
Now, for waiting on 20 tables, he will get the fixed amount of 35 dollars and the amount for 20 tables.
So, the total amount will be:
35+7*20
35+140
$175
Hence, Anthony would expect to earn $175 in a day when he waits in 20 tables.
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Mr. Gravy and Mrs. Gravy are packaging dinners for the homeless. It takes Mr. Gravy 4 minutes to package one dinner. It takes Mrs. Gravy 3 minutes to package one dinner. They start packaging dinners at 10:00 a.m. How many total dinners will they have packed at 12:00pm?
Answer:
Mr.Gravy =30
Mrs.Gravy =40
Step-by-step explanation:
One brand of juice contains 0.05 of natural juice. Which is this decimal written as a percent?
A) 0.05%
B) 5%
C) 0.5%
D) 50%
Answer:
B.) 5%
Step-by-step explanation:
You'll need to multiply 0.05 by 100. Since 100 = 1, we are only multiplying by 1 and not changing the value of our number.
0.05 × 100 = 5
5/100 is 5 over 100 and means 5 per 100. 5 "per 100" means 5 "percent" or 5%
Therefore, 0.05 = 5%
I hope this helps! ^-^
(Please help!!!) The heights of 14 plants, in inches, are listed.
12, 14, 15, 15, 16, 16, 16, 17, 18, 18 ,19, 20, 22, 25
If another plant with a height of 13 inches is added to the data, how would the mean be impacted?
The mean would stay the same value of about 17.1 inches.
The mean would decrease in value to about 17.1 inches.
The mean would stay the same value of about 17.4 inches.
The mean would increase in value to about 17.4 inches.
As a result, the mean would be approximately **15.87** inches. The solution is **B**.
The mean would decrease in value to about 17.1 inches.
Defining Mean?The mean in mathematics is a measurement of a set of numbers' central tendency. The average is another name for it. A set of numbers are added together to determine the mean, which is then divided by the total number of values in that set.
The sum of a collection of integers divided by the total number of values in the set yields the mean of the set.
12 + 14 + 15 + 15 + 16 + 16 + 17 + 18 + 18 + 19 + 20 + 22 + 25 = **225** is the total height of the 14 plants.
Rounding to two decimal places, the mean height of these plants is 225/14, or **16.07** inches.
The revised sum of heights would be **238** if an additional plant with a height of 13 inches were to be included in the data.
238/15 = **15.87** inches (rounded to two decimal places) would be the new mean height.
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Impactation in the mean is B)The mean would decrease in value to about 17.1 inches.
Defining Mean?
The mean in mathematics is a measurement of a set of numbers' central tendency. The average is another name for it. A set of numbers are added together to determine the mean, which is then divided by the total number of values in that set.
The sum of a collection of integers divided by the total number of values in the set yields the mean of the set.
=>12 + 14 + 15 + 15 + 16 + 16 + 17 + 18 + 18 + 19 + 20 + 22 + 25 = **225** is the total height of the 14 plants.
Rounding to two decimal places, the mean height of these plants is
=> 225/14, or **16.07** inches.
The revised sum of heights would be **238** if an additional plant with a height of 13 inches were to be included in the data.
=> 238/15 = **15.87** inches (rounded to two decimal places) would be the new mean height.
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what is the factored form of the function f(x)=x³+2x²-15x-36
Answer:
(x+3)(x+3)(x-4)
Step-by-step explanation:
I find a graphing calculator immensely helpful for factoring problems. Of course the constant in the binomial factor is the opposite of the x-intercept value. The x-intercept at -3 just touches the axis, so has even multiplicity. It will give rise to a repeated factor.
The x-intercepts of -3, -3 and +4 mean the factorization is ...
f(x) = (x +3)(x +3)(x -4)
A student spends $48 on school supplies at a store where sales tax is 7%. What is the total cost of the supplies?
Answer:
The answer is 51.36 so just add 48 plus 7%
Step-by-step explanation:
Answer
51.36
Step-by-step explanation:
How to find unique prime factorization of 10 factorial.