Answer:
10
Step-by-step explanation:
Because 5 + 5 is 10, so 1/2 of 10 + 1/2 of 10 = 10
Where in a scholarly article would you expect to find a concise summary of the entire experiment?
introduction
abstract
discussion
title page
A normal distribution of data has a mean of 15 and a standard deviation of 4. How many standard deviations from the mean is 25? 0. 16 0. 4 2. 5 6. 25.
A Z-score or the standard score shows that how many standard deviation for a given measurement deviates from the mean. Total number of standard deviation is 2.5 from the mean 25.
Given information-
The value of the mean of the data is 15.
The value of the standard deviation of the data is 4.
The value of the sample mean is 25.
Normal distribution-A function that represent the distribution of n numbers of random variables in a symmetrical bell shaped.
Z score-A Z-score or the standard score shows that how many standard deviation for a given measurement deviates from the mean. The z score for the normal distribution of the data set can be given as,
\(Z=\dfrac{X-\mu}{\sigma}\)
Here \(X\) is the sample mean of the data set, \(\mu\) is the population mean of the data set and \(\sigma\) is the standard deviation.
Put the values,
\(Z=\dfrac{25-15}{4} \\Z=2.5\)
Hence, total number of standard deviation is 2.5 from the mean 25.
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If a point is equidistant from the two sides of an angle, then it is:
A. On the angle bisector
B. On the side of the angle
C. On the perpendicular bisector
D. The vertex of the angle
Answer:
A. On the angle bisector
Step-by-step explanation:
You want a shorter description of a point that is equidistant from the sides of an angle.
Angle bisectorThe definition of an angle bisector is, "the set of points equidistant from the sides of an angle." A point in that set is on the angle bisector.
PLEASE HURRY!!!!!!
Martha wanted to find out what her classmates’ favorite sport was. She separated the list of classmates into three age groups and then from each group, drew names from a hat so that the number in each group was proportional to the number in each age group. Was Martha’s survey a random survey, and if so, which sampling method did she use?
A. Yes, she used simple random sampling.
B. Yes, she used systematic random sampling.
C. Yes, she used stratified random sampling.
D. No, she did not choose a random sample.
Answer:
C. Yes, she used stratified random sampling.
Explanation :
Stratified random sampling is a random method of sampling where researcher divided the population into sub group and the randomly select from these group to find the final sample.
Answer:
C
Step-by-step explanation:
There are 26 people watching Serena's softball game that are wearing sunglasses. Serena determined this is 40% of the people watching the game. How many people are watching Serena's softball game?
Maryanne sells cruise vacations.
A photo of a cruise ship is shown.
She makes a base salary of $2,500 per month plus 5% of the cost of each vacation. This month she sold $80,000 in cruises. What are her total monthly wages?
An aircraft encounters a 20 knot crosswind and makes NO heading correction. After 1 hour of flight, how far off course would the aircraft be
The aircraft will be 20 nautical miles off course after 1 hour of flight.
The distance the aircraft will be off course after 1 hour of flight can be calculated using the formula:
distance off course = (crosswind speed) x (time)
In this case, the crosswind speed is 20 knots and the time is 1 hour. So, the distance off course is:
distance off course = 20 knots x 1 hour = 20 nautical miles
Therefore, the aircraft will be 20 nautical miles off course after 1 hour of flight.
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If f(x)=16x-30 and g(x)=14x-6, for which value of x does (f-g)(x)=0?
12
13
14
The value of x for which (f - g)(x) = 0 is x = 12.
To find the value of x for which (f - g)(x) = 0, we need to subtract g(x) from f(x) and set the resulting expression equal to zero. Let's perform the subtraction:
(f - g)(x) = f(x) - g(x)
= (16x - 30) - (14x - 6)
= 16x - 30 - 14x + 6
= 2x - 24
Now, we can set the expression equal to zero and solve for x:
2x - 24 = 0
Adding 24 to both sides:
2x = 24
Dividing both sides by 2:
x = 12
Therefore, the value of x for which (f - g)(x) = 0 is x = 12.
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Andrea sells photographs at art fairs. She prices the photos according to size: small photos cost $10, medium photos cost $15, and large photos cost $40. She usually sells as many small photos as medium and large photos combined. She also sells twice as many medium photos as large. A booth at the art fair costs $300. If her sales go as usual, how many of each size photo must she sell to pay for the booth?
Answer: she must sell 6 large photos and 6 small photos
Step-by-step explanation: and how I knew that is I multiplied 6 40 times and that gives you 240 and if you multiply 6 ten times that gives you 60 so 240 plus 60 is $300
do you know how to bake a muffan
Answer:
yea by using a resipe
Step-by-step explanation:
Answer:
yes
Step-by-step explanation:
you need eggs, butter, flour, sugar, salt, oil (i prefer olive oil) and baking powder.
fruit if you like them in your sweets.
this makes 12 muffins
2 cups flour
3 tsps baking powder
1/2 tsp salt
3/4 cup sugar
1 egg
1 cup milk
1/4 cup oil
preheat oven. i usually do 350 F, increase the temperature if youd like them to cook faster but keep in mind youll need to check on them often with increased heat.
stir together your dry ingridents and in a seperate bowl beat your egg with a fork. stir in the milk and oil with the egg.
pour into your dry ingriedeints until everything is well mixed.
bake until golden
if you like fruit id suggest blueberries, 1 cup
Apples are $1.79 per lb at Food Lion. If I purchase 3.8 lbs, how much sure I expect to pay?
Answer:
$6.80
Step-by-step explanation:
1.79 x 3.8 = 6.802
So $6.80
What is the first step in solving the equation m/5 - 2=8
Answer:
The first step is adding two to both sides to further isolate the variable.
Step-by-step explanation:
You want m/5=10 so you can multiply 5 on both sides and find what m equals which is 50 in this instance.
Answer:
Step-by-step explanation:
m/5 -2=8 I would first add 2 to both sides
m/5=10 Then multiply both sides by 5 to clear out the fraction.
m=50
Determine whether the pair of sets is equal, equivalent, both, or neither. A = {biology, computer science, trigonometry} B = {computer science, calculus, trigonometry, biology) Are set A and set B equal, equivalent, both, or neither? O Both O Neither O Equal O Equivalent
The sets A = {biology, computer science, trigonometry} B = {computer science, calculus, trigonometry, biology) are equivalent.
This is because they have the same number of elements, but the elements are not in the same order. Two sets are equal if they have the same elements in the same order, and two sets are equivalent if they have the same number of elements, but the elements are not in the same order. Therefore, the correct answer is "Equivalent."
Here is the answer in HTML format:
<p>The sets A and B are <strong>equivalent</strong>. This is because they have the same number of elements, but the elements are not in the same order. Two sets are equal if they have the same elements in the same order, and two sets are equivalent if they have the same number of elements, but the elements are not in the same order. Therefore, the correct answer is "<strong>Equivalent</strong>."</p>
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the general convention is to reject a hypothesis if your data analysis indicates that there is a probability that a hypothesis is incorrect. True or False
The general convention is to reject a hypothesis if your data analysis indicates that there is a probability that a hypothesis is incorrect. This is False.
What is probability?Probability is the occurence of likely events. It is the area of mathematics that deals with numerical estimates of the likelihood that an event will occur or that a statement is true. An event's probability is a number between 0 and 1.
After a performing a test, scientists can reject the null hypothesis meaning there is a definite, consequential relationship between the two phenomena
In this case, the convention is to accept a hypothesis if your data analysis indicates that there is a probability that a hypothesis is incorrect.
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What is the slope of this line? −2/3 2/3 3/2 I don't know. Graph of a line on coordinate plane. Axes are labeled x and y. Three points are shown, labeled with ordered pairs 2 comma 3, 5 comma 5, and 8 comma 7. The line passes through these three points.
Answer:
2/3 is your answer
Step-by-step explanation:
Hope this helps
P.S.(from k12)
The slope of the line is 2/3.
Here,
Graph of a line on coordinate plane. Axes are labeled x and y.
Three points are with ordered pairs (2, 3), (5, 5), and (8, 7) and the line passes through these three points.
We have to find the slope of the line.
What is the slope of the line?
Let two points (x₁, y₁) and (x₂, y₂) are on the line, then slope of the line is calculated as;
\(m = \frac{y_{2}-y_{1} }{x_{2}-x_{1} }\)
Now,
Three points are passes through the line are (2, 3), (5, 5), and (8, 7).
To find the slope, Let any two point from three given points.
Let (2, 3) and (5, 5) on the line.
Hence, Slope is calculated as,
⇒ \(m = \frac{5-3}{5-2} = \frac{2}{3}\)
Therefore, The slope of the line is 2/3.
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You just won a grand prize that pays you $1000 a month for 9 years. If you can earn 8 percent on your money, what is this prize worth to you today? $100,875.78$122,591.29$64,800.00$14,000.00$76,812.50
If you can earn 8 percent on your money, the prize worth to you is: $76,812.50. To calculate the present value of the prize, we need to determine the current worth of receiving $1000 per month for 9 years, given an 8 percent annual interest rate.
This situation can be evaluated using the concept of the present value of an annuity. The present value of an annuity formula is used to find the current value of a series of future cash flows. In this case, the future cash flows are the $1000 monthly payments for 9 years. By applying the formula, which involves discounting each cash flow back to its present value using the interest rate, we find that the present value of the prize is $76,812.50.
This means that if you were to receive $1000 per month for 9 years and could earn an 8 percent return on your money, the equivalent present value of that prize, received upfront, would be $76,812.50.
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*97 POINTS*
Use the numerals representing cardinalities in the Venn diagram, shown on the right, to give the cardinality of the set
A' ∩ B' ∩ C. '
n(A' ∩ B' ∩ C')= ___________
Answer:
19
Step-by-step explanation:
A' represents everything out A
B' represents everything out B
C' represents everything out C
So only the outside is left hope this helps
In which step did the student first make a mistake and how can it be corrected? (4 points)
Answer: The answer is Step 2 it should be m o plus m p = 180 degrees (Supplementary angles)
Step-by-step explanation: The reason it’s this answer first we know the triangle will equal 180 and 2 it was supplementary
Y= 3y - 2x
2y = 3x -2
(método de sustitución, igualación y suma y resta)
The solution of the system of equations is (x, y) = (1/3, 1/3).
To solve the given system of equations, we can use any of the following three methods; the substitution method, the elimination method (also known as the addition/subtraction method), and the graphical method. Below, we will solve it using each of these methods.
1. Substitution method:
We will use the substitution method to solve the system of equations. Step-by-step solution is shown below; Given equations are
Y = 3y - 2x ...(1)2y = 3x - 2 ...(2) From equation (1), we have
Y + 2x = 3y ...(3)Now substitute equation (3) into equation
(2)2y = 3x - 2 ...(2)Y + 2x = 3y ...(3)2(3y - 2x) = 3x - 2
Multiplying both sides by 2:
6y - 4x = 3x - 2 Grouping like terms:
6y - 3x = 2 Adding 3x to both sides:
6y = 3x + 2Dividing both sides by 6:
y = (3/6)x + 2/6y = (1/2)x + 1/3
Therefore, the solution of the system of equations is (x, y) = (1/3, 1/3).
2. Elimination method:
We will use the elimination method to solve the system of equations. Step-by-step solution is shown below; Given equations are
Y = 3y - 2x ...(1)2y = 3x - 2 ...(2)Multiplying equation (1) by 2,
we get;2Y = 6y - 4x ...(3)Multiplying equation (2)
by -3, we get;-6y = -9x + 6 ...(4) Adding equations (3) and (4),
we get;-4x = -9x + 8
Simplifying;-4x + 9x = 8x = -8x = -2
Therefore, we found the value of x, which is -2.
Substitute the value of x in either equation (1) or (2);
If we substitute x = -2 in equation (1), we get;
Y = 3y - 2(-2)Y = 3y + 4Y - 3y = 4Y = 4/2Y = 2Substitute the value of y in equation (1)
;Y = 3y - 2xY = 3(2) - 2(-2)Y = 6 + 4Y = 10
Therefore, the solution of the system of equations is (x, y) = (-2, 10/2).3.
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Mr. Trpkosh was calculating the rate of change of two functions. The first function had a rate of change of -10; the second function had a rate of change of 8. Norman said the second function had the greater rate of change because 8 is greater than -10. Do you agree or disagree with Mr. Trpkosh? Explain your answer. *
Answer:
No, I do not agree with Mr. Trpkosh.
Step-by-step explanation:
The rate of change of a function means the total change in the function for a unit change in the independent variable.
If the function is increasing with increment in the independent variable, then the rate of change of the function is positive, while if the function is decreasing with the same, then the rate of change of the function is negative.
Given that the rate of change of the first function = - 10, so this function is decreasing with a rate of 10.
The rate of change of the second function = 8, so this function is increasing with a rate of 8.
So, the first function has a higher rate of change.
i i rlly don't know this gets harder tho
Answer:
Step-by-step explanation:
4(n + 10) = 34
4n + 40 = 34
If you need the rest...
4n = -6
n = -6/4
how to calculate magnitude of vector
The magnitude of the vector is calculated by using the formula √((c-a)²+(d-b)²) where A(a,b) and B(c,d) are point on the plane.
A vector is any quantity that has a magnitude as well as directiom and that also follows the vector law of addition.
Let us say that there are any two points on the co-ordinate plane A(a,b) and B(c,d).
Now the magnitude of the vector AB can be found by using the formula,
AB = √((c-a)²+(d-b)²)
and the direction of this vector will be from A to B on the coordinate plane. If we want to find direction, then it is given by, tab A = (d-b)/(c-a)
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The ordered data are below
658 789 1,306 1,900 1,922 2,077
2,409 2,768 3,603 4,291 5,744 6,502
7,528 8,355 8,358 10,463 11,463 14,163
The middle value for 21 observations is observation ___ , so the median of the data is _____ million dollars.
Answer:
There are 21 observations in the data set, which is an odd number. Therefore, the middle value will be the (n+1)/2th observation, where n is the total number of observations.
The middle value = (21+1)/2 = 11th observation
The 11th observation is 4,291, so the median of the data is $4.291 million dollars.
What is the meaning of bail-in and bail-out? (5 marks) What are
the pros and cons of using bail-in to resolve a bank failure? (10
marks) Why have bank regulators been seeking to improve their
bail-in
Bail-in and bail-out are terms used in resolving bank failures. Bail-in involves the bank's stakeholders bearing the losses, while bail-out involves external financial support. Pros of bail-in include protecting taxpayers and promoting market discipline, while cons include potential contagion effects, complexity, and investor uncertainty. Bank regulators seek to improve bail-in frameworks to enhance financial stability and protect taxpayers.
Bail-in refers to a process in which a failing bank's creditors and shareholders are required to bear the losses incurred by the bank. In a bail-in, the bank's liabilities are written down or converted into equity, effectively recapitalizing the bank and restoring its solvency. This approach aims to ensure that the costs of the bank's failure are borne by the bank's stakeholders rather than taxpayers or the government.
On the other hand, a bail-out involves providing financial support to a failing bank by external sources, typically the government or a central bank. The bail-out involves injecting funds into the bank to prevent its collapse and maintain its operations. This approach aims to protect depositors and maintain stability in the financial system but can often place a burden on taxpayers.
Now let's discuss the pros and cons of using bail-in to resolve a bank failure.
Pros of using bail-in:
1. Protection of taxpayers: Bail-in reduces the burden on taxpayers by making the bank's stakeholders, such as bondholders and shareholders, responsible for covering the losses. This helps prevent moral hazard and ensures that the costs of the bank's failure are borne by those who have a stake in the bank.
2. Market discipline: Bail-in promotes market discipline by holding creditors and shareholders accountable for their investment decisions. This encourages better risk assessment and monitoring of banks by investors, as they become more cautious about investing in banks with higher risk profiles.
Cons of using bail-in:
1. Potential contagion effects: The implementation of bail-in measures can potentially lead to contagion effects in the financial system. If investors lose confidence in one bank, it may spread to other banks and institutions, causing a broader financial crisis.
2. Lack of clarity and complexity: Determining the appropriate allocation of losses and implementing a bail-in can be complex and challenging. There may be difficulties in accurately valuing assets, determining the order of creditor hierarchy, and navigating the legal and operational complexities involved.
3. Investor uncertainty: The possibility of bail-in may increase uncertainty among investors, leading to higher borrowing costs for banks and reduced market confidence. This can negatively impact the stability of the financial system.
In recent years, bank regulators have been seeking to improve their bail-in frameworks to enhance financial stability and protect taxpayers. They aim to establish clear rules and procedures for implementing bail-ins, ensure sufficient loss-absorbing capacity within banks, and enhance transparency and investor confidence.
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How much is 600 Euros (EUR) to US Dollars (USD)
USD 651.83 is equal to 600 Euros (USD). The euro, denoted by the sign €, is the currency and monetary unit of the European Union.
How much is $600 euro in US dollars?USD 651.83 is equal to 600 Euros (USD). The euro, denoted by the sign €, is the currency and monetary unit of the European Union.Prior to its release as currency notes and coins in 2002, it first existed as a noncash monetary unit.The participating EU nations' domestic currencies and a few non-EU countries were replaced by the euro.The official money of the United States of America is the dollar, abbreviated as USD.A dollar is made up of 100 cents and is known as the United States dollar.To set it apart from other currencies based on the dollar, it is denoted by the symbol $ or US$.
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For a project in her Geometry class, Addison uses a mirror on the ground to measure
the height of her school's football goalpost. She walks a distance of 13.25 meters from
the goalpost, then places a mirror on flat on the ground, marked with an X at the
center. She then steps 1.3 meters to the other side of the mirror, until she can see the
top of the goalpost clearly marked in the X. Her partner measures the distance from
her eyes to the ground to be 1.55 meters. How tall is the goalpost? Round your answer
to the nearest hundredth of a meter.
1q
1.55 m
1.
13 m-
13.25 m
Answer:
the height of the goalpost is approximately 10.48 meters.
Step-by-step explanation:
To find the height of the goalpost, Addison needs to use the distance from the mirror to the goalpost, the distance from her eyes to the ground, and the angle formed by the goalpost, the mirror, and her eyes. She can use the law of cosines to solve for the height of the goalpost.
Let "a" be the distance from the goalpost to the mirror, "b" be the distance from the mirror to Addison's eyes, and "c" be the distance from Addison's eyes to the ground.
The law of cosines states that: c^2 = a^2 + b^2 - 2ab * cos(C), where C is the angle formed by the goalpost, the mirror, and Addison's eyes.
In this case, a = 13.25 meters, b = 1.3 meters, and c = 1.55 meters. We can substitute these values into the formula to solve for the angle C:
1.55^2 = 13.25^2 + 1.3^2 - 2 * 13.25 * 1.3 * cos(C)
Solving for cos(C) and using the inverse cosine function (arccos), we find that C = 52.22 degrees.
Now that we know the angle C, we can use the law of sines to solve for the height of the goalpost. The law of sines states that:
sin(C) / a = sin(A) / h, where A is the angle formed by the ground, the mirror, and the goalpost, and h is the height of the goalpost.
In this case, A = 180 - C - 90 = 180 - 52.22 - 90 = 37.78 degrees, and a = 13.25 meters. We can substitute these values into the formula to solve for h:
sin(52.22) / 13.25 = sin(37.78) / h
Solving for h, we find that the height of the goalpost is approximately 10.48 meters.
Therefore, the height of the goalpost is approximately 10.48 meters.
52 > 43 + w
is it a solution?
7 yes or no
4 yes or no
13 yes or no
9 yes or no
Find the coefficient of correlation between and X and Y if covariance between X and Y is 15 and the variance of X and Y are respectively 10 and 25
Answer:
0.95
Step-by-step explanation:
\(Correlation \ coefficient \ (r) = \dfrac{covaraince \ between \ X \ and \ Y }{SD_X \times SD_Y }\)
\(Correlation \ coefficient \ (r) = \dfrac{15 }{10^{1/2} \times 25^{1/2} }\)
\(Correlation \ coefficient \ (r) = \dfrac{15 }{3.162 \times 5 }\)
\(Correlation \ coefficient \ (r) = \dfrac{15 }{15.81 }\)
\(Correlation \ coefficient \ (r) \simeq 0.95\)
What score would a student need to have a 30th percentile score on the SAT? Recall that the mean score was 1509, and the standard deviation of the scores is 312.
Group of answer choices
a. 1244
b. 1345
c. 1456
d. 1673
Rounding to the nearest whole number, we get that the score a student would need to have a 30th percentile score on the SAT is 1345. Correct option is B.
To find the score corresponding to the 30th percentile, we need to use the standard normal distribution with a mean of 0 and a standard deviation of 1. We can convert the SAT score to a standard normal score using the formula:
z = (x - μ) / σ
where x is the SAT score, μ is the mean score (1509), and σ is the standard deviation (312).
To find the score corresponding to the 30th percentile, we need to find the z-score that has an area of 0.30 to its left. Using a standard normal table or calculator, we can find that the z-score corresponding to a 30th percentile is approximately -0.52.
Now we can use the formula to find the corresponding SAT score:
-0.52 = (x - 1509) / 312
Solving for x, we get:
x = -0.52 * 312 + 1509 = 1345.36
Therefore, the answer is (b) 1345.
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I am doing a connexus geometry unit test. please send assistance!
Answer:
x=37
Step-by-step explanation:
50+24=74
74/2=37