NO LINKS!!! URGENT HELP PLEASE !!!
#1-3
Find the shaded area of each figure, and round your answer to one decimal place if necessary.
Answers
You posted a lot of questions. I'll do the first three to get you started.
==================================================
Problem 1
Answer: 55 square inchesExplanation:
Draw a vertical line to enclose the un-shaded region. Think of it like adding fencing to enclose a paddock or backyard.
What results are two rectangles. The larger rectangle has area = length*width = 8*10 = 80 square inches.
The smaller unshaded rectangle inside has area of 5*5 = 25 square inches.
The difference of those areas is: 80-25 = 55
You have the correct answer. Nice work.
==================================================
Problem 2
Answer: 486 square feetExplanation:
Follow the same set of steps as done in the previous problem. Draw a vertical line to form a larger rectangle.
The larger rectangle has area of 18*31.5 = 567 square feet.
The smaller unshaded rectangle has area of 9*9 = 81 square feet.
Subtract those results to get the shaded region only: 567-81 = 486
==================================================
Problem 3
Answer: 5.6 square cmExplanation:
This time we don't have to add any extra lines to enclose the figure.
A = larger area = 6*2.4 = 14.4
B = smaller unshaded area = 2*4.4 = 8.8
C = A-B = 14.4-8.8 = 5.6 square cm
You have the correct answer. Nice work.
Answer:
1) 55 in²
2) 486 ft²
3) 5.6 cm²
Step-by-step explanation:
To calculate the area of each given figure, subtract the area of the cut-out rectangle (marked in blue on the attached diagram) from the area of the larger rectangle.
[tex]\boxed{\begin{minipage}{5cm}\underline{Area of a rectangle}\\\\$A=w\cdot l$\\\\where:\\ \phantom{ww} $\bullet$ \quad $w$ is the width.\\ \phantom{ww} $\bullet$ \quad $l$ is the length.\\\end{minipage}}[/tex]
Question 1[tex]\begin{aligned}\textsf{Total Area}&=\textsf{Larger rectangle}-\textsf{Cut-out rectangle}\\&=8 \cdot 10- 5\cdot 5\\&=80-25\\&=55\; \sf in^2\end{aligned}[/tex]
Question 2[tex]\begin{aligned}\textsf{Total Area}&=\textsf{Larger rectangle}-\textsf{Cut-out rectangle}\\&= 31.5\cdot 18- 9\cdot 9\\&=567-81\\&=486\; \sf ft^2\end{aligned}[/tex]
Question 3[tex]\begin{aligned}\textsf{Total Area}&=\textsf{Larger rectangle}-\textsf{Cut-out rectangle}\\&= 6\cdot 2.4- 4.4\cdot2 \\&=14.4-8.8\\&=5.6\; \sf cm^2\end{aligned}[/tex]
Related Questions
SHOW WORK
Brad is leasing a car worth $34,000 for three years. His leasing company says that the car Brad
is leasing will only be worth $22,600 at the end of his lease. Approximately what percentage of the
car's original value will Brad need to pay as part of his lease? (round to the nearest whole number as
a percent not decimal)
You are leasing a car with a MSRP of $27,000 for three years. After three years, the leasing
company expects the car to have a value of 70% of its original MSRP. What will the residual value of
the car be after three years? (show your work)
Answers
Brad will need to pay 34% of the car's original value as part of his lease.
The residual value of the car after three years is $18,900
What percentage of the car's original value will Brad need to pay as part of his lease?PART 1
To find the percentage of the car's original value that Brad will need to pay as part of his lease, we need to calculate the difference between the original value and the residual value (the value of the car at the end of the lease) and express it as a percentage of the original value. Here's how to do it:
difference = $34,000 - $22,600 = $11,400
Express the difference as a percentage of the original value:
($11,400 / $34,000) x 100% = 34%
Therefore, Brad will need to pay approximately 34% of the car's original value as part of his lease. Rounded to the nearest whole number, this is 34%.
PART 2
The residual value of the car after three years can be found by multiplying the original MSRP by the percentage of its value that it will retain after three years. Here's how to do it:
Find the value the car will retain after three years:
residual value = 70% of $27,000 = 0.70 x $27,000 = $18,900
Therefore, the residual value of the car after three years will be $18,900.
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The
accompanying
table shows the value
of a car over time that was purchased for
17100 dollars, where x is years and y is the
value of the car in dollars. Write an
exponential regression equation for this
set of data, rounding all coefficients to the
nearest hundredth. Using this equation,
determine the value of the car, to the
nearest cent, after 12 years.
Years (x) Value in Dollars (y)
0
1
2
3
4
LO
5
17100
14090
12240
11403
10369
9055
Answers
The equation of the exponential regression is y = 17100[tex]e^{-0.194x}[/tex] and the value of a car after 12 years is $1667
What is an exponential regression?It is a model that explains processes that experiences growth at a double rate. It is used for situations where the growth begins slowly but rapidly speeds up without bounds or where the decay starts rapidly but slows down to get to zero.
Given that, the given table shows the value of a car over time that was purchased for 14100 dollars, where x is years and y is the value of the car in dollars.
We need to find the exponential regression equation for this set of data,
We know that,
The exponential regression equation is : y = A₀eᵃˣ
Where A₀ is the coefficient of exponential regression and a is the constant.
For x = 0, the value of y will be $17100.
Therefore,
17100 = A₀e⁰
A₀ = 17100
Therefore, the equation will be =
y = 17100eᵃˣ
Find for a,
For x = 1, the value of y will be $14090.
14090 = 17100eᵃ
eᵃ = 14090/17100
Taking ln both sides, then we have,
a lne = -0.194
a = -0.194
Therefore, the exponential regression equation for this set of data is :
y = 17100[tex]e^{-0.194x}[/tex]
Finding the value of the car, after 12 years =
y = 17100[tex]e^{-0.194(12)[/tex]
y = 1667
Hence, the equation of the exponential regression is y = 17100[tex]e^{-0.194x}[/tex] and the value of a car after 12 years is $1667
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Find the number of ways of arranging the elements of [n] in such a way that even and odd numbers must alternate.
Answers
The total number of arrangements in which the elements of [n] alternate between even and odd numbers are:
(n/2)! * (n/2)! if n is odd
(n/2)! * (n/2-1)!! if n is even
The initial number in the permutation must be odd if n is odd. There are n/2 ways to organize the odd numbers and n/2 ways to arrange the even numbers because there are (n/2)! odd numbers and n/2 even numbers. There is only one way to determine the sequence in which odd and even numbers occur because they must alternate. As a result, there are (n/2)!*(n/2)! viable permutations in total.
The number of odd and even numbers is equal if n is even. There are n/2 options for the initial number since we can choose any odd number to be the first number in the permutation. The second slot thus has options for (n/2 - 1) even numbers, the third position has options for (n/2 - 1) odd numbers, and so on.
Therefore, the total number of valid permutations is (n/2) * (n/2 - 1) * (n/2 - 1) * ... * 1, which can be written as (n/2)! * (n/2-1)!!.
Thus, the total number of arrangements in which the elements of [n] alternate between even and odd numbers are:
(n/2)! * (n/2)! if n is odd
(n/2)! * (n/2-1)!! if n is even
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A rug 4 m wide and 5 m long costs $132. How much would a 3 m by 4 m rug of the same material cost?
Answers
Answer:
4m x 5m = 20 sq/m
$132 ÷ 20 sq/m = $6.60 per sq/m
3m x 4m = 12 sq/m
12 sq/m x $6.60 = $79.20
Suppose that you are conducting a survey of car owners and recording the number of cars each individual has owned in their lifetime. The mean number of cars is 6, and the standard deviation is 3. Larry has owned 15 cars in his lifetime.
Which of the following statements is true?
Select the correct answer below:
A. The number of cars Larry has owned is 3 standard deviations to the right of the mean.
B. The number of cars Larry has owned is 9 standard deviations to the right of the mean.
C. The number of cars Larry has owned is 3 standard deviations to the left of the mean.
D. The number of cars Larry has owned is 9 standard deviations to the left of the mean.
Answers
Larry's car ownership is three standard deviations above the mean. As a result, option A is the correct answer.
Consider the z-score formula, which tells us how many standard deviations a person's value is from the mean:
z = (x - μ) / σ
where x is the individual's value, is the mean, and is the standard deviation.
Plugging in the values from the problem yields:
z = (15 - 6) / 3 = 3
This indicates that Larry's car ownership is three standard deviations above the mean. As a result, option A is the correct answer. Option B is incorrect because it by a factor of three overestimates the number of standard deviations. Option C is incorrect because it implies Larry has had a negative number of cars, which is illogical. Option D is incorrect because it overestimates the number of standard deviations by a factor of 3.
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directions for this project, you will submit the python script you used to make your calculations and a summary report explaining your findings. python script: to complete the tasks listed below, open the project two jupyter notebook link in the assignment information module. your project contains the nba data set and a jupyter notebook with your python scripts. in the notebook, you will find step-by-step instructions and code blocks that will help you complete the following tasks: hypothesis tests for a population parameter hypothesis tests for a population mean hypothesis test for a population proportion hypothesis test for the difference between two population parameters hypothesis test for difference between two population means summary report: once you have completed all the steps in your python script, you will create a summary report to present your findings. use the provided template to create your report. you must complete each of the following sections: introduction: set the context for your scenario and the analyses you will be performing. hypothesis tests for the population mean: discuss all steps of the hypothesis tests and interpret your results. hypothesis test for the population proportion: discuss all steps of the hypothesis test and interpret your results. hypothesis test for the difference between two population means: discuss all steps of the hypothesis test and interpret your results. conclusion: summarize your findings and explain their practical implications.
Answers
From the directions, It seems that you are working on a project related to hypothesis testing for NBA data. To complete the project, you need to perform several hypothesis tests for population parameters and write a summary report explaining your findings.
The first task is to submit a Python script that includes all the necessary code to perform the hypothesis tests. You can use the Jupyter notebook provided in the project to write the code. The notebook contains step-by-step instructions and code blocks that will help you complete the tasks.
The second task is to write a summary report that includes an introduction, hypothesis tests for the population mean, hypothesis test for the population proportion, hypothesis test for the difference between two population means, and a conclusion.
In the introduction, you should set the context for your scenario and explain the purpose of your analysis. You should also provide an overview of the data and the hypothesis tests you will be performing.
In the hypothesis tests for the population mean, you will need to discuss all the steps of the hypothesis test, including formulating the null and alternative hypotheses, selecting the significance level, calculating the test statistic, determining the p-value, and interpreting the results.
In the hypothesis test for the difference between two population means, you will need to discuss all the steps of the hypothesis test, including formulating the null and alternative hypotheses, selecting the significance level, calculating the test statistic, determining the p-value, and interpreting the results.
Finally, in the conclusion, you should summarize your findings and explain their practical implications. You should also discuss any limitations of your analysis and suggest future research directions.
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Suppose a certain home improvements outlet knows that the monthly demand for framing studs is 2300 when the price is $0.99 each but that the demand is 3900 when the price is $0.67 each. Assuming that the demand function is linear, write its equation. Use p for price and q for quantity
Answers
Assuming that the demand function is linear, the equation will be
p + 0.0001q = 5.
Here are the steps to get to the final equation:
p = price and q = quantity,
Information is given in the question that,
When the price is $4.77, the demand is 2,300, and the price is 3,300, and the demand is also 3,300.
The generic equation for a line is now stated, using the points mentioned above as the line's points:
We get, 2,300 - q = -10,000(4.77 - p)
or
= 2,300 - q = -47700 + 10,000p
or
= 10,000p + q = 2300 + 47700
or
= 10,000p + q = 50000
or
= p + 0.0001q = 5
Thus the equation will be p + 0.0001q = 5.
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Look at the image below to figure out the problem
I will give brainiest to the correct answer and giving 15 points away
Answers
Answer:
54 cups
Step-by-step explanation:
2/9=12/?
12/2=6
6*9=54
6 Lola buys 2.5 meters of red fabric for $6.55 per meter. She buys 3.2 meters of
blue fabric for $5.25 per meter. How much money does she spend in all? 21
Round your answer to the nearest cent.
Show your work.
Answers
The total money she spent in all is $34.00(nearest cent)
What is word problem?A word problem is a math problem written out as a short story or scenario. Basically, it describes a realistic problem and asks you to imagine how you would solve it using math. If you've ever taken a math class, you've probably solved a word problem.
This word problem are interpreted into mathematical equation.
Lola bought 2.5 meters red for 6.55$ per yard
total for red = 2.5 × 6.55 = $16.4
She bought blue 3.2 meters for 5.25$
total for blue = 3.2 × 5.5 = $17.6
The total money spent = $17.6 + $16.4
= $34.00(nearest cent)
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The line plot shows the amount of time that Melissa spent last week exercising. What is the difference between the longest time and the shortest time Melissa spent exercising?
Please tell me how you got the answer thank you
i need a quick response
Answers
The difference between the longest time and the shortest time Melissa spent exercising (Range) is; 3/4 hours.
What is the range of the given set of data?As evident from the task content; the difference between the longest time and the shortest time Melissa spent exercising, otherwise termed the range is to be determined.
By observation, the longest time = 1 hour while the shortest time = 1/4 hour.
Hence, the difference is; 1 - 1/4 = 3/4 hours.
On this note, the difference as required is; 3/4 hours.
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the dimensions of a triangle are shown below. if the height of the triangle is increased by a factor of 4, which statement will be true about the area of the triangle?
Answers
If the height of the triangle is increased by a factor of 4 , then (b) The area will increase by a factor of 4 .
The Area of a triangle is : Area = (1/2)×b×h,
Where base of triangle = b and height of triangle = h ;
In this case, the base of triangle is = 20m and
the height of triangle is = 10m,
So the area of the triangle is ⇒ A = (1/2)×20m×10m = 100m² ;
If the height of the triangle is increased by a factor of 4, the new height will be 4 times the original height,
Which is ⇒ h' = 4×h = 4×10m = 40m ;
The base of triangle remains that is = 20m.
So, the new area of the triangle is : A' = (1/2)×20m×40m = 400m² ;
On Comparing New area(A') to the Original area(A),
We get ; A'/A = 400/100 = 4 ;
Therefore, the area of the triangle has increased by a factor of 4.
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The given question is incomplete , the complete question is
The dimensions of a triangle are base = 20m , height = 10m . If the height of the triangle is increased by a factor of 4,
Which statement will be true about the area of the triangle ?
(a) The area will increase by a factor of 2
(b) The area will increase by a factor of 4
(c) The area will increase by a factor of 8
(d) The area will not change .
Answer:
the area will increase by
Step-by-step explanation:
Share 28 sweet between amanda and busi in the ratio 3:1
Answers
28/4=7
Therefore one part equals 7
3 x 7 = 21
1 x 7 = 7
Ratio = 21 : 7
9.An online news article
posted this circle graph. If a total of six million
apps were downloaded, about how many of
each kind of app was downloaded?
Apps Downloaded
Social
Media
40%
Games
25%
Music
30%
Video
5%
Answers
The social media apps are 24,00,000 , games apps are 15,00,000 , music apps are 18,00,000 and video apps are 3,00,000.
How to calculate percentage of a number?
A percentage is a number or ratio that can be expressed as a fraction of 100. If we have to calculate percent of a number, divide the number by the whole and multiply by 100.
Given:
Total apps : six million
Social Media : 40%
Games : 25%
Music : 30%
Video : 5%
In order to find the number of apps of each category , we need to calculate each percentages . thus,
Social Media : 40%
Therefore , Social media apps = 40% of Six million = 0.4*60,00,000
Social media apps = 24,00,000
Similarly,
Games : 25%
Games apps = 25% of 60,00,000
Games apps = 15,00,000
Music : 30%
Music apps = 18,00,000
Video : 5%
video apps = 3,00,000
Hence , the social media apps are 24,00,000 , games apps are 15,00,000 , music apps are 18,00,000 and video apps are 3,00,000.
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Samir operates an orange juice stand. On Monday he used 5 bags of oranges. On Tuesday he used 7/10 as many oranges as on Monday. How many bags of oranges did Samir use on Tuesday?
Answers
Samir, Juice operator used 7/2 bags of oranges on Tuesday.
What is a fraction?A fraction is written in the form of p/q, where q ≠ 0.
Fractions are of two types they are proper fractions in which the numerator is smaller than the denominator and improper fractions where the numerator is greater than the denominator.
Given, Samir operates an orange juice stand. On Monday he used 5 bags of oranges.
So, The number of bags of oranges used on Tuesday can be determined by multiplying the number of bags by the fraction.
Therefore, On Tuesday he used 5×(7/10) = 7/2 bags of oranges on Tuesday.
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Order angles from smallest to largest then the sides from smallest to largest in the triangle
SSS _,_,_
AAA _,_,_
Answers
The angles from smallest to largest are ∠A, ∠C, ∠B and the order of sides from smallest to largest is BC, AB, AC.
What is Triangle?A triangle is a two dimensional figure which consist of three vertices, three edges and three angles.
Sum of the interior angles of a triangle is 180 degrees.
Given a triangle ABC.
The two angles of a triangle is given as 21° and 96°.
∠A = 21° and ∠B = 96°.
We have the fact that, the sum of the interior angles of a triangle is 180 degrees.
So, ∠A + ∠B + ∠C = 180°
21° + 96° + ∠C = 180°
∠C = 63°
The side opposite the smallest angle will be the smallest side.
So, the side opposite ∠A = 21° is BC, which is the smallest side.
The side opposite ∠C = 63° is AB , which is the second largest side.
The side opposite ∠B = 96° is AC, which is the largest side.
Hence the order of angles and side are ∠A, ∠C, ∠B and BC, AB, AC respectively.
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What is the difference between sample statistics and population parameters called?
Answers
The difference between sample statistics and population parameter is called sampling error .
Sample statistics is the description in number or representation in number of the data measured by samples . The examples include mean , median , mode , average , percentiles etc .
Population parameter is also the description in number or representation in number of data about an entire population . The examples include population mean , population variance etc.
The sample statistics is calculated over data by say 100 regular customers whereas the population parameter is calculated by data over the specific target market . So , you can say that people of sample statistics are a subset of people of population parameter .
To understand better look at this example ,
By sample statistics , the mean Vitamin D level in sample of 100 men is 63nmol/L
Now by population parameter , the true mean Vitamin D level in all middle aged and older European men is 63nmol/L
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How do I do math for mass volume and density
Answers
The.average bone density for the sample will be: C.31 g/cm³
How to calculate the average bone densityBased on the information, it should be noted that the average bone density for sample 1 will be:
= 6.8 / 22.6
= 0.3
It should be noted that the average bone density for sample 2 will be:
= 1.7 / 5.4
= 0.32
It should be noted that the average bone density for sample 3 will be:
= 3.6 / 11.3
= 0.32
It should be noted that the average bone density for sample 4 will be:
= 5.2 / 17.4
= 0.3
The average bone density for the sample will be:
= (0.3 + 0.32 + 0.32 + 0.3) / 4
= 0.31 g/cm³
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What multiplication equation can you use to find 3/8 divided by 3/4
Answers
The two methods of finding the quotient are flipping the divisor and then multiplying and the second one is converting the fractions into decimals and dividing them.
What are fractions?Fractions describe the part of something present out of the total amount.
here, we have,
We know that the result of diving a fraction by a fraction is the same as multiplying that fraction by the reciprocal of the divisor.
∴ (3/8) ÷ (3/4) is,
= (3/8) × (4/3).
= 4/8.
= 1/2.
The second method is converting the fractions into decimals and then dividing them in a conventional way.
3/8 = 0.375
and 3/4 = 0.75.
∴ 0.375 ÷ 0.75 is,
= 0.5.
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Right now, Miguel is 9 kilometers into a 36-kilometer race. He is running an average of 18 kilometers every hour.
Answers
Miguel finished the 36 km in 1 hour and 30 minutes.
What is an expression?An expression contains one or more terms with addition, subtraction, multiplication, and division.
We always combine the like terms in an expression when we simplify.
We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.
Example:
1 + 3x + 4y = 7 is an expression.
3 + 4 is an expression.
2 x 4 + 6 x 7 – 9 is an expression.
33 + 77 – 88 is an expression.
We have,
18 km = 1 hour
9 km = 30 minutes
Now,
Total distance = 36 km
Distance done by Miguel = 9 kilometers
So,
The distance remaining.
= 36 - 9
= 27
Now,
Time taken to run 27 km.
18 km = 1 hour
Multiply 27/18 on both sides.
27 km = 27/18 x 1 hour
27 km = 1.5 hour
Thus,
1 hour and 30 minutes.
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Complete question.
Right now, Miguel is 9 kilometers into a 36-kilometer race. He is running an average of 18 kilometers every hour.
After how many hours Miguel will finish the 36 km.
What are the zeroes of the polynomial function?
Answers
Answer: The zeroes of a polynomial function are the values of x!
Step-by-step explanation:
The zeroes of a polynomial function are the values of x at which the polynomial is equal to zero. The zeroes of a polynomial can be found by setting the polynomial equal to zero and solving for x. For example, if the polynomial is f(x) = x^2 + 3x – 4, then the zeroes are -4 and 1. This is because when x = -4, f(-4) = 0 and when x = 1, f(1) = 0.
Step-by-step explanation:
zeroes of a function are the values of x that create the functional value 0.
since we have been given just 4 answer options, we could play "trial and error" to find the right one.
or we could think a little bit.
F(x) = x³ - x² - 6x = x(x² - x - 6) = x(x - 3)(x + 2)
and so the zeros are all values of x that cause that expression to be 0. and that means any value of x that sets one of the factors to 0.
x = 0 is clear.
x = 3 (3 - 3 = 0)
and
x = -2 (-2 + 2 = 0)
are the other 2 zeros.
that means D is the right answer.
Determine whether the following arguments are best interpreted as being inductive or deductive. Also state the criteria you use in reaching your decision (i.e., the presence of indicator words, the nature of the inferential link between premises and conclusion, or the character or form of argumentation).
The graphical method for solving a system of equations is an approximation, since reading the point of intersection depends on the accuracy with which the lines are drawn and on the ability to interpret the coordinates of the point.
(Karl J. Smith and Patrick J. Boyle, Intermediate Algebrafor College Students)
Answers
An argument from definition is one in which the conclusion is determined by a single word or definition. As a result, the argument is deductive and definition-based.
Deductive arguments are those that are certain, whereas inductive arguments are those that are likely.
The argument is deductive if the arguer believes that the truth of the premises absolutely establishes the truth of the conclusion. The argument is inductive if the arguer believes that the truth of the premises provides only good reasons to believe the conclusion is probably true.
Endogenous means originating from within.
The conclusion (cholesterol is manufactured within the human body) follows logically from the premises (Cholesterol is endogenous with humans).
The conclusion is claimed here on the word endogenous.
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The complete question is:
Determine whether the following arguments are best interpreted as being inductive or deductive. Also state the criteria you use in reaching your decision (i.e., the presence of indicator words, the nature of the inferential link between premises and conclusion, or the character or form of argumentation).
Cholesterol is endogenous with humans. Therefore, it is manufactured inside the human body.
Polygon ABCD is a rectangle. AE = 4x+10 and EC = 2x+18. What is DB? (Make sure you are answering the question being asked...)
Answers
The length of DB in rectangle ABCD is √{5x² + 38x + 106}.
What is Pythagoras's theorem?
In a right-angled triangle, the sum of the squares of the smaller two sides of a right-angle triangle is equal to the square of the largest side.
Given, Polygon ABCD is a rectangle, AE = 4x + 10 and EC = 2x + 18.
Here DB is the diagonal of the rectangle ABCD.
Therefore,
DB = √(AE² + EC²).
DB = √{(4x + 10)² + (2x + 18)²}.
DB = √{16x² + 80x + 100 + 4x² + 72x + 324}.
DB = √{20x² + 152x + 424}.
DB = √{5x² + 38x + 106}.
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the critical value of f for an upper tail test at a 0.05 significance level when there is a sample size of 21 for the sample with the smaller variance and there is a sample size of 9 for the sample with the larger sample variance is
Answers
The critical value of f for an upper-tail test at a 0.05 significance level is 2.94.
The critical value of F for an upper-tail test at a 0.05 significance level with a sample size of 21 for the sample with the smaller variance and a sample size of 9 for the sample with the larger variance can be found using an F-distribution table or calculator.
Using an F-distribution table or calculator with numerator degrees of freedom (df1) of 8 and denominator degrees of freedom (df2) of 20 (since df1 is for the sample with the larger variance and df2 is for the sample with the smaller variance), the critical value of F at the 0.05 significance level is approximately 2.94.
Therefore, the answer is a. 2.94.
The complete question is:-
The critical value of F for an upper-tail test at a 0.05 significance level when there is a sample size of 21 for the sample with the smaller variance and there is a sample size of 9 for the sample with the larger sample variance is _____. a. 2.94 b. 2.45 c. 2.10 d. 2.37
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Write the rule for the linear function. Remember a function rule is written using f (x) x 7 5 -1 y 2 3 6
Answers
The rule for the linear function is f(x) = (-1/2)x + 11/2
What is an equation of the line?An equation of the line is defined as a linear equation having a degree of one. The equation of the line contains two variables x and y. And the third parameter is the slope of the line which represents the elevation of the line.
To write the rule for the linear function, we can start by finding the slope of the line passing through the given points (x, y):
Slope = ( y₂ - y₁ ) / ( x₂ - x₁ )
Slope= (6 - 2) / (-1 - 7)
Slope= 4 / (-8)
Slope= -1/2
Therefore, the slope of the line passing through these points is -1/2.
Now, we can use the point-slope form of a linear equation to find the equation that represents this relationship:
y - y₁= m(x - x₁)
Where m is the slope and (x1, y1) is any point on the line. Let's use the point (7, 2):
y - 2 = (-1/2)(x - 7)
y - 2 = (-1/2)x + 7/2
y = (-1/2)x + 11/2
Therefore, the rule for the linear function is f(x) = (-1/2)x + 11/2
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2. A minor league baseball park has 7000 seats. Box seats cost $6, grandstand seats cost $4, and bleacher seats cost $2. When all seats are sold, the revenue is $26,400. If the number of box seats is one-third the number of bleacher seats, how many seats of each type are there? Give a complete sentence explaining what your answers mean.
a. Clearly define the variables in this problem:
x =
y=
z =
b. Write the equations for this problem.
c. Solve using the Gauss-Jordan method.
Answers
If a minor league baseball park has 7000 seats. Box seats cost $6, grandstand seats cost $4, and bleacher seats cost $2. x = 400, y = 5400, z = 1200.
What is the equation?The two equations are
x + y + z = 7000
6x + 4y +2z = 26400
Hence,
1/3z + y + z= 7000
4/3z+ y= 7000
y= 7000 - 4/3z
Substitution
6×1/3z + 4×(7000 - 4/3z) + 2z= 26400
Solving for z
2z + 4×7000 - 4×4/3z + 2 z= 26400
2z + 28000 - 16/3z + 2 z= 26400
2z - 16/3z + 2z= 26400 - 28000
-4/3z= -1600
z= (-1600)÷ (-4/3)
z= 1200
So,
x= 1/3z
x= 1/3×1200
x = 400
y= 7000 - 4/3z
y= 7000 - 4/3×1200
y= 5400
Therefore x = 400, y = 5400, z = 1200.
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f (x) = 3x + 2 + x find f (2)
Answers
[tex]f(x)=3x+2+x[/tex] find f(2)
Substitute:
[tex]f(2)=3(2)+2+(2)[/tex]
[tex]f(2)=6+2+2[/tex]
[tex]\fbox{f(2) = 10}[/tex]
A total of N balls are put in two urns, so that initially urn A has i balls and urn B has N - i balls. At each step, one ball is chosen at random from the N balls If it is from urn A, it is moved to urn B, and vice versa. Let Xn be the number of balls in urn A after n steps. Show that {Xn, n > 0) is a DTMC, assuming that the successive random drawings of the balls are independent. Display the transition probability matrix of the DTMC.
Answers
We have shown that {Xn, n > 0) is a DTMC, assuming that the successive random drawings of the balls are independent by using the Memoryless property and Time-independent transition probabilities.
(1) Memoryless property:
Suppose we are at time n and know that Xn = i.
To determine the probability of moving to state j at time n+1, we only need to know the number of balls in urn A at time n and the number of balls that are drawn at time n+1.
The past history of the chain before time n is irrelevant. Therefore, the Markov chain has a memoryless property.
(2) Time-independent transition probabilities:
To calculate the transition probability from state i to state j, we need to consider the possible ways in which the number of balls in urn A can change from i to j. The transition probability from state i to state j is given by:
P(i,j) = P(Xn+1 = j | Xn = i) = P(Xn+1 = j | Xn = i, ball drawn from urn A) * P(ball drawn from urn A) + P(Xn+1 = j | Xn = i, ball drawn from urn B) * P(ball drawn from urn B)
= P(Xn+1 = j-1 | Xn = i, ball drawn from urn A) * (i/N) + P(Xn+1 = j+1 | Xn = i, ball drawn from urn B) * ((N-i)/N)
= (i-1)/(N-1) * (i/N) + (N-i-1)/(N-1) * ((N-i)/N)
= (i-1)(N-i)/N(N-1) + (N-i-1)i/N(N-1)
Therefore, the transition probability matrix is given by:
P = [P(i,j)] =
[(N-2)/N(N-1) 2/N(N-1) 0 0 ... 0]
[(N-3)/(N-1)(N-2) (N-1)/(N-1)(N-2) 2/N(N-2) 0 ... 0]
[0 (N-4)/(N-2)(N-3) (N-2)/(N-2)(N-3) 3/N(N-3) ... 0]
[0 0 (N-5)/(N-3)(N-4) (N-3)/(N-3)(N-4) ... 0]
[ ........................................... ]
[ 0 0 ... 0 2/N(N-1) (N-2)/N(N-1)]
Therefore, we have shown that {Xn, n > 0} is a DTMC with the transition probability matrix given by P.
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uestion
Estimate √283 between two consecutive whole numbers.
Answers
Answer: The square root of 283 lies between the square roots of 256 and 324, which are 16 and 18, respectively. Therefore, an estimate for the square root of 283 is between 16 and 18, and we can round to the nearest whole number, which is 16.
Step-by-step explanation:
help me solve this equation
Answers
(X,Y)=(1,7)
Dr. Lawrence attended meetings from 9:00 am to 11:45 am and from 2:15 pm to 4:45 pm. How many hours did he attend meetings? ( write the minutes as a fraction of an hour)
Answers
Answer:
4 and 11/12 hour
Step-by-step explanation:
11 hour 45 min - 9 hour = 2 hour 45 minute
4 hour 45 min - 2 hour 15 = 2 hour 30 minute
Total = (2 + 2 hour) + (45 + 30 min)
= 4 hour 55 min
= 4 and (55)/60) hour
= 4 and 11/12 hour