You began a new job at a pizza shop 3 weeks ago. You worked 6 hours during the first week, 4 hours during the second week, and 10 hours during the third week. Which graph best represents the total hours you worked over these 3 weeks?
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Related Questions
The average score of a midterm exam in a large class is 69.7. The standard deviation is 18.0. Suppose that in order to get an A in the midterm, the student's score in the test has to be, at least, 1 standard deviation above the mean. What is the minimum score that assures a student an A in the midterm
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The minimum score that assures a student an A in the midterm is 87.7.
Given that the average score of a midterm exam in a large class is 69.7 and the standard deviation is 18.0. Suppose that in order to get an A in the midterm, the student's score in the test has to be at least one standard deviation above the mean.
To find the minimum score that assures a student an A in the midterm, we use the following formula: Minimum score = Mean + 1(Standard Deviation). Substituting the given values in the above formula, Minimum score = 69.7 + 1(18.0)Minimum score = 87.7. Therefore, the minimum score that assures a student an A in the midterm is 87.7.
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A car going 50 mil/hr accelerates to pass a truck. 5 seconds later the care is going 80mil/ Calculate
the acceleration of the car.
Answers
Answer:
Step-by-step explanation:
5 seconds later acceleration of the car is 6m/h^2
We know that the initial velocity of a car is 50 mph.
In the end, the final velocity of a car is 80 mph.
The time difference is 5 seconds.
For the calculation of the acceleration, we have this formula,
α = δv/t
so here, according to our data, velocity and time are,
u = 50 mph
v = 80 mph
t = 5 s
Finally, the acceleration of the car can be calculated by,
α = (80 - 50) / 5
α = 30 / 5
α = 6 m/h^2
From the above calculations, the car's acceleration is 6 m/h^2.
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X is a normally distributed random variable with a mean of 12 and a standard deviation of 3. The probability that x equals 19. 62 is.
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The characteristics of the normal distribution can be used to determine the likelihood that X equals 19.62 because X is a normally distributed random variable with a mean of 12 and a standard deviation of 3.
We must compute the z-score, which counts the number of standard deviations a given result is from the mean, in order to determine this probability. Calculating the z-score is as follows:
z = (x - μ) / σ
If the supplied value, x, the mean, and the standard deviation are all given.In this instance, x=19.62, =12, and =3 respectively. By replacing these values, we obtain:
z = (19.62 - 12) / 3 ≈ 2.54
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PLEASE HELP -2/3 divided by (-2/9)= A.-3/1 B.-1/3 C.1/3 D.3/1
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The answer to your question would be D. 3/1
A.
2x
Find the value of x.
D
X+5
x = [?]
B
4
E
3
C
![A.2xFind the value of x.DX+5x = [?]B4E3C](https://i5t5.c14.e2-1.dev/h-images-qa/contents/attachments/5clx80aJkqYFn2lVik1CJJX3WNWHX1Jq.png)
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Check the picture below.
now let's take a looksie at the triangles, well segments DE || AC, that only happens if segment DE is the midsegment of the triangle ABC, which also means that both triangles are similar
\(\cfrac{AB}{DB}=\cfrac{BC}{BE}\implies \cfrac{(2x)+(x+5)}{x+5}=\cfrac{4+3}{4}\implies \cfrac{3x+5}{x+5}=\cfrac{7}{4} \\\\\\ 12x+20=7x+35\implies 5x+20=35\implies 5x=15\implies x=\cfrac{15}{5}\implies x=3\)
![A.2xFind the value of x.DX+5x = [?]B4E3C](https://i5t5.c14.e2-1.dev/h-images-qa/answers/attachments/737pglJhg24ZDrxfO081MRMBfLxstmCr.png)
2 apples cost 2 dabloons.
How much does 1 apple cost
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Will be marking brainliest for the correct answer!!
Maximum answers is 3, so please 3 of the following ^^
Answers
Answer:
x = 6
11/2x + 2/3x = 37
37/6x = 37
Step-by-step explanation:
these are correct since when you evaluate the equation, you only get 6 being the value for x. And all these three options I wrote above lead to x = 6
Hope this helped :)
For this experiment you have been randomly assigned to a group consisting of you and one other person. You do not know now, nor will you ever know, who this other person is. For this experiment all you have to do is distribute your 10 points into two accounts. One account called KEEP and one account called GIVE. The GIVE account is a group account between you and your group member. For every point that you (or your group member) put in the GIVE account, I will add to it 50% more points and then redistribute these points evenly to you and your group member. The sum of the points you put in KEEP and GIVE must equal the total 10 points. Any points you put in the KEEP account are kept by you and are part of your score on this experiment. Your score on the experiment is the sum of the points from your KEEP account and any amount you get from the GIVE account. For example, suppose that two people are grouped together. Person A and Person B. If A designates 5 points in KEEP and 5 points in GIVE and person B designates 10 points to KEEP and 0 points to GIVE then each person’s experiment grade is calculated in this manner: Person A’s experiment grade = (A’s KEEP) + 1.5(Sum of the two GIVE accounts)/2 = 5 +(1.5)(0+5)/2= 5 + 3.75 = 8.75. Person A’s score then is 8.75 out of 10. Person B’s experiment grade = (B’s KEEP) + 1.5(Sum of the two GIVE accounts)/2 = 10 +(1.5)(0+5)/2 = 10 + 3.75. Person B’s score then is 13.75 out of 10. (you can think of any points over 10 as extra credit) In this module’s activity you were asked to make a decision about how to invest your resources (points). This activity is a classic strategic game where the good of the individual is at odds with the good for the group. These problems are pervasive in risk management. For example, a physician who is trained to treat diseases may be reluctant to discuss alternative treatments with a patient when the physician is sure that a specific treatment is the only truly viable treatment. Nonetheless, you have learned in this course that physicians (or an agent of the physician) must have this discussion and bow to the will of the patient even if, in the physician’s judgment, the patient chooses an alternative treatment which is likely to be superfluous. In this way, informed consent and patient education are nuisances to the physician but are very important to protect the group (maybe a hospital or surgical group) from liability. In light of recent events another example is warranted. Individuals may choose to not get vaccinated since they do not want to bear the risk of any possible adverse side-effects of a vaccine. This is perfectly reasonable to do so. The problem arises when large groups of people choose to not get vaccinated thus making the impact of the disease relatively larger than need be if everyone would choose to take a vaccine (remember our first cost-benefit experiment). This implies that individual’s rights to choose not to vaccinate are at odds with what is good for the group of individuals. These types of problems are common in risk management. Discussion: (If you post your answers to each of the four questions below before the deadline, you will get the full ten points for the discussion. The questions do not need to be answered mathematically or with a calculation. If you feel the need to use mathematics to make a calculation, then you are free to do so but the questions are merely asking you for a number and how you arrived at that number. If you do not do any calculations to arrive at the number, just say how you arrived at the number. (There are no incorrect answers.) 1. In this activity how did you arrive at your decision on the keep-give split? 2. What is the best outcome of this situation for you? 3. What is the best outcome of this situation for the group? 4. Can you see any parallels with this game and how risk management strategies work? Explain.
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1. I based my decision on allocating points to maximize my own score, while also considering the potential benefits of contributing to the group fund.
2. The best outcome for me would be allocating the minimum points required to the GIVE account, while putting the majority in the KEEP account. This would ensure I receive the most points for myself.
3. The best outcome for the group would be if both participants maximized their contributions to the GIVE account. This would create the largest group fund, resulting in the most redistributed points and highest average score.
4. There are parallels with risk management strategies. Individuals may act in their own self-interest, but a larger group benefit could be achieved if more participants contributed to "group" risk management strategies like vaccination, safety protocols, insurance policies, etc. However, some individuals may free ride on others' contributions while benefiting from the overall results. Incentivizing group participation can help align individual and group interests.
the sides of a square are growing at a rate of 3 inches per minute. how fast is the area increasing when each side is 5 inches long?
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24 centimeters. Hope this helped!
What is the value of x. -5(x-3)=-25
Answers
Answer:
The answer is 8
A basketball player makes 0.7 of the free throws he tries. Assuming this percentage will hold true for future attempts find the probability that in the next six tries the number of free throws he will make is: at least 4 and at most 3?
Answers
The probability that in the next six tries the number of free throws he will make is at least 4 is 0.74431 and at most 3 is 0.25569.
To find the probability for the given scenarios, we'll consider the two separate cases:
1. At least 4 free throws made:
The number of free throws the player will make in the next six tries follows a binomial distribution with parameters n = 6 (number of trials) and p = 0.7 (probability of success in each trial).
To find the probability that the player makes at least 4 free throws in the next six tries, we need to calculate the probabilities of making 4, 5, or 6 free throws, and add them up:
P(X ≥ 4) = P(X = 4) + P(X = 5) + P(X = 6)
where X is the random variable representing the number of free throws made.
Using the binomial probability formula, we can calculate these probabilities:
- Probability of making 4 free throws: (6 choose 4) * 0.7⁴ * 0.3²
- Probability of making 5 free throws: (6 choose 5) * 0.7⁵ * 0.3¹
- Probability of making 6 free throws: (6 choose 6) * 0.7⁶ * 0.3⁰
where "choose" is the binomial coefficient (6 choose 4) = 6!/(4!2!) = 15, and so on.
Getting the sum of these probabilities will give the probability of making at least 4 free throws.
P(X ≥ 4) = 0.324135 + 0.302526 + 0.117649 = 0.74431
2. To find the probability of making at most 3 free throws, we can use the complement rule:
P(X ≤ 3) = 1 - P(X ≥ 4) = 1 - 0.74431 = 0.25569
Therefore, the probability of making at least 4 and at most 3 free throws in the next six tries is:
P(3 ≤ X ≤ 4) = P(X ≤ 3) + P(X ≥ 4) = 0.25569 + 0.74431 = 1.0
This makes sense, since the player must make either at least 4 or at most 3 free throws in the next six tries, so the sum of these probabilities is 1.
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Help please , THANKS!
:DD
Answers
Answer:
73°
Step-by-step explanation:
To find ∠QPS, just add ∠1 and∠2
∠QPS = ∠1 + ∠2
= 44° + 29°
= 73°
Answer:
∠QPS = 73°
Step-by-step explanation:
∠1 = 44°
∠2 = 29°
∠QPS = ∠1 + ∠2 = 44° + 29° = 73°
Computing equipment is bought from a supplier. The cost of 5 Computers and 4 Printers is £6,600, the cost of 4 Computers and 5 Printers is £6,000. Form two simultaneous equations and solve them to find the costs of a Computer and a Printer. A used Car salesperson can be paid using two methods of commission. METHOD X uses straight commission 3.5% of the selling price of all vehicles sold. METHOD Y uses a fixed amount of £250 per week plus commission of 1.5% of the selling price of all vehicles sold. If the total selling price of the Cars sold in each week is on average £20,000, calculate which of the two methods of commission the salesperson would prefer.
Answers
The cost of one computer is £600 and the cost of one printer is £800.
Computing equipment is bought from a supplier. The cost of 5 Computers and 4 Printers is £6,600, and the cost of 4 Computers and 5 Printers is £6,000. Form two simultaneous equations and solve them to find the costs of a Computer and a Printer.
Let the cost of a computer be x and the cost of a printer be y.
Then, the two simultaneous equations are:5x + 4y = 6600 ---------------------- (1)
4x + 5y = 6000 ---------------------- (2)
Solving equations (1) and (2) simultaneously:x = 600y = 800
Therefore, the cost of a computer is £600 and the cost of a printer is £800..
:Therefore, the cost of one computer is £600 and the cost of one printer is £800.
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What is the area of a circle with the radius of 16 meters? Use 3.14 for pi or put pi in your answer for an exact answer.
Answers
Answer:
803.84m^2
Step-by-step explanation:
16^2=256
256×3.14=803.84
orrr for the exact answer 256π=804.24771931898.....
1) Explain the problem of unit root in standard regression and in time-series models and Explain how to use the Dickey-Fuller and augmented Dickey-Fuller tests to detect this. In clearly and detailed . Kindly type your answers . Course Econometrics
Answers
The problem of unit root in standard regression and time-series models arises when a variable exhibits a non-stationary behavior, meaning it has a trend or follows a random walk. Unit root tests, such as the Dickey-Fuller and augmented Dickey-Fuller tests, are used to detect the presence of a unit root in a time series. These tests examine whether the coefficient on the lagged value of the variable is significantly different from one, indicating the presence of a unit root.
In standard regression analysis, it is typically assumed that the variables are stationary, meaning they have a constant mean and variance over time. However, many economic and financial variables exhibit non-stationary behavior, where their values are not centered around a fixed mean but instead follow a trend or random walk. This presents a problem because standard regression techniques may produce unreliable results when applied to non-stationary variables.
Time-series models, such as autoregressive integrated moving average (ARIMA) models, are specifically designed to handle non-stationary data. They incorporate differencing techniques to transform the data into a stationary form, allowing for reliable estimation and inference. Differencing involves computing the difference between consecutive observations to remove the trend or random walk component.
The Dickey-Fuller test and augmented Dickey-Fuller test are commonly used to detect the presence of a unit root in a time series. These tests examine the coefficient on the lagged value of the variable in a regression framework. The null hypothesis of the tests is that the variable has a unit root, indicating non-stationarity, while the alternative hypothesis is that the variable is stationary.
The Dickey-Fuller test is a simple version of the test that includes only a single lagged difference of the variable in the regression. The augmented Dickey-Fuller test extends this by including multiple lagged differences to account for potential serial correlation in the data. Both tests provide critical values that can be compared to the test statistic to determine whether the null hypothesis of a unit root can be rejected.
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Can someone help me with this?
Answers
Answer:reflections I think
Step-by-step explanation: when you reflect a point across an axis, at least one of the coordinates’ sign will change
Answer:
person above me is right
Step-by-step explanation:
A school janitor has mopped 1/3 of a classroom in 5 minutes. At what date is he mopping? Simplify your answer and write it as a proper fraction,mixed number,or whole number
Answers
The correct answer is the janitor is mopping at a rate of 1/15 of a classroom per minute and this is a proper fraction.
It is given in the question that a school janitor has moped \(\frac{1}{3}\) of classroom in 5 minutes.
We have to find the rate at which he is moping
We will divide \(\frac{1}{3}\) by 5, to divide by 5 we will multiply \(\frac{1}{3}\) with reciprocal of 5 that is \(\frac{1}{5}\)
\(\frac{1}{3}\)× \(\frac{1}{5}\) = \(\frac{1}{15}\)
Hence, the janitor is mopping at a rate of 1/15 of a classroom per minute.
This fraction is proper fraction If the numerator of a fraction is less than the denominator, the fraction is said to be a correct fraction.
A proper fraction's value is never more than 1. Sam, for instance, divided a chocolate bar into four equal pieces. He took one portion and handed his sister Rachel three portions.
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There are four defenders on a soccer team. If this represents 20 percent of the players on the team, which equation can be used to find the total number of players on the team?
StartFraction 4 divided by 1 Over 20 divided by 1 EndFraction = StartFraction 4 Over 20 EndFraction
StartFraction 4 times 20 Over 100 times 20 EndFraction = StartFraction 80 Over 200 EndFraction
StartFraction 20 times 25 Over 4 times 25 EndFraction = StartFraction 500 Over 100 EndFraction
StartFraction 20 divided by 5 Over 100 divided by 5 EndFraction = StartFraction 4 Over 20 EndFraction
Answers
Answer:
D. (20/ 5) /(100/5) = 4 / 20Step-by-step explanation:
Four defenders on a soccer team represents 20 percent of the players on the team.
If the total number is x, it can found as:
4 = 20%x = 100%x = 4*100/20 = 4*5 = 20Correct choice with same outcome is D
the perosn abocve me is right
Step-by-step explanation:
Need help with part A
Answers
Answer: 0.4
Step-by-step explanation:
The question is asking for the probability to own a dog.
40% own a dog.
If you add all of the percentages you get 100%
40/100
=0.4
The probability is 0.4 times to randomly select a resident that only owns a dog.
The volume of a triangular prism is increased by a factor of 8.
By what factor is the surface area of the figure increased?
2
4
16
24
Answers
(a) find the mean number of cars owned for this sample. give your answer to at least 2 decimal places.
Answers
The mean number of cars owned for this sample is 3.00.
To find the mean number of cars owned for this sample, we will use the formula for calculating the mean:
Mean = (sum of all values) / (number of values)
Let's assume that the sample is given as: 1, 2, 3, 4, 5
Find the sum of all values. In this case, the sum is 1 + 2 + 3 + 4 + 5 = 15.
Find the number of values. In this case, there are 5 values.
Divide the sum of all values by the number of values to find the mean. In this case, the mean is 15 / 5 = 3.
Overall, Mean, median and mode are all measures of central tendency in statistics. In different ways they each tell us what value in a data set is typical or representative of the data set. The mean is the same as the average value of a data set and is found using a calculation. Add up all of the numbers and divide by the number of numbers in the data set.
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Hii guys I need help with this I took a screenshot of it.
I WILL GIVE YOU 18 POINTS JUST PLS HELP THANKS (:
Answers
Answer:
x <= 9
Step-by-step explanation:
x -15 <= -6
+15. +15
x <=9
A circle has an arc with a measure of 120 degrees and a lenght of 3π cm. What is the diameter of the circle
Answers
Answer:
9 cm
Step-by-step explanation:
Arc length = θ/360 × 2πr
A circle has an arc with a measure of 120 degrees and a lenght of 3π cm. What is the diameter of the circle
Hence,
3π = 120/360 × 2πr
Diameter = 2r
3π = 1/3 × 2πr
Cross Multiply
9π = 2πr
2r = 9π/π
Note that :
Diameter = 2r
Hence,
Diameter = 9 cm
A population has a current size of 150. If λ is 1. 2, what will the expected population size be after two generations?.
Answers
The expected population size be after two generations which has a current size of 150 and λ of 1.2 is 216.
Nt = N₀ × λ^t
Nt = Population size at generation t
N₀ = Current population size
t = Number of generations
λ = Finite rate of increase
λ = 1.2
N₀ = 150
Nt = 150 × 1.2²
Nt = 150 × 1.44
Nt = 216
Population size is defined as the number of individuals present in a designated region. Finite rate of increase is the ratio of population size from increase from one year to the next.
Therefore, the expected population size be after two generations is 216
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Zahra completed a 5-kilometer race in 40 minutes. If she were able to keep the same pace, how many kilometers could she run in 72 minutes? 6 7 8 9
Answers
Answer:
9
Step-by-step explanation:
you can set up a proportion for it (i included a picture of it)
Answer:
I am just doing this to confirm the other person is right. It is 9.
Step-by-step explanation:
is a parallelogram. is the midpoint of . and trisect .
Let ⃗⃗⃗⃗⃗ = ⃗ and ⃗⃗⃗⃗⃗ = . Show your work on the diagram as well.
Answers
Answer:
option 6b):) is correct
the committee needs to obtain data for review and measurement of the process. what would be the best way to catalog the data so it can be used to make meaningful changes?
Answers
The committee can best catalog the data so it can be used to make meaningful changes by using a database management system (DBMS).
A database management system (DBMS) is a system that enables users to create, read, update, and delete data in a database. The DBMS is a tool that handles all data-related tasks. Organizations employ a DBMS to keep data organized and easy to access and manage.
DBMS provides a set of computerized tools for managing all types of data. A DBMS allows end-users to extract and analyze data from a database.
The committee can use a database management system to ensure that data is organized and easily retrievable. They can employ a DBMS to streamline data entry and report production for high-quality output.
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Kristi travels by plane at an average speed
of 387.5 mph for 2 hours and by car at an
average speed of 56.8 mph for 1.25 hours.
What was the total distance in miles Kristi
Traveled during this time?
Answers
Answer:
846
Step-by-step explanation:
2 x 387.5 + 1.25 x 56.8
[ Air craft travel distance + car travel distance ]
= 775 + 71
=846
The total distance is 846miles.
What is multiplication?In mathematics, multiplication is a method of finding the product of two or more numbers. It is one of the basic arithmetic operations, that we use in everyday life.
Here, given that,
Kristi travels by plane at an average speed of 387.5 mph for 2 hours and by car at an average speed of 56.8 mph for 1.25 hours.
Total distance =[ Air craft travel distance + car travel distance ]
=2 x 387.5 + 1.25 x 56.8
= 775 + 71
=846
Hence, total distance is 846 miles.
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What’s the answer???
Answers
Answer:
The answer will be A
As 75 - 12 should be equal to 9x
So answer is "A"
Ethan is at a sandwich shop and is looking at the combo meal, which includes a sandwich, a choice of 2 sides, and a medium drink. He has to decide between 5 different sandwiches, 4 different sides, and 6 kinds of drinks. If he decided beforehand to get 2 different sides, how many different combinations could he order?
Answers
Answer:
286
Step-by-step explanation:
C(n,r)=?
C(n,r)=C(13,3)
=13!(3!(13−3)!)
=13!3!×10!
= 286
Answer:
360
Step-by-step explanation:
I honestly don't understand how it was 360, but I tried 240 and it didn't work.