The probability of X = 44 is approximately 0.087 using the normal approximation to the binomial.
The normal approximation to the binomial is a technique used to estimate probabilities for large binomial distributions when calculating by hand becomes impractical. In this case, we have N = 50, p = 0.8, and we want to find the probability of X = 44.
To use the normal approximation, we need to first check if the binomial distribution is approximately normal. This can be done by checking if the conditions np >= 10 and n(1-p) >= 10 are met. In our case, np = 50 x 0.8 = 40 and n(1-p) = 50 x 0.2 = 10, so the conditions are met.
Next, we calculate the mean and standard deviation of the normal distribution using the formulas μ = np and σ = sqrt(np(1-p)). In our case, μ = 40 and σ = sqrt(50 x 0.8 x 0.2) ≈ 2.83.
Finally, we use the normal distribution with mean μ and standard deviation σ to find the probability of X = 44. We need to standardize X using the formula Z = (X - μ) / σ, which gives Z = (44 - 40) / 2.83 ≈ 1.41.
Using a standard normal table or calculator, we find that the probability of Z being less than 1.41 is approximately 0.921. This means that the probability of X being less than or equal to 44 is approximately 0.921.
Therefore, the probability of X being exactly 44 is approximately the difference between the probability of X being less than or equal to 44 and the probability of X being less than or equal to 43. Using a continuity correction, we adjust 43.5 to 43, which gives us:
P(X = 44) ≈ P(43.5 < X < 44.5) ≈ P(Z < (44.5 - 40) / 2.83) - P(Z < (43.5 - 40) / 2.83) ≈ 0.087.
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CAN SOMEONE PLS HELP WITH THIS ILL MARK BRAINLIEST
Circle 1:
R- 3cm
D- 6cm
C- 18.84cm
Circle 2:
R- 6in
D- 12in
C- 37.68in
Circle 3:
R- 9mm
D- 18mm
C- 56.52mm
your welcome :)
An adult male hippopotamus can weigh from 3,500 pounds to 9,920 pounds. About how many tons is this
An adult male hippopotamus can weight from 3,500 pounds to 9,920 pounds, which is equivalent to 1.75 tons to 4.96 tons.
Weight is a measure of the force exerted on an object by gravity. It is typically measured in units of mass, such as pounds or kilograms, but is commonly referred to as "weight" in everyday language. The weight of an object can vary depending on its location and the strength of the gravitational field in that location.
To convert pounds to tons, we need to divide the weight in pounds by 2,000 (since there are 2,000 pounds in a ton). So, we have:
Minimum weight: 3,500 pounds / 2,000 = 1.75 tons (rounded to the nearest hundredth)
Maximum weight: 9,920 pounds / 2,000 = 4.96 tons (rounded to the nearest hundredth)
Therefore, an adult male hippopotamus can weigh approximately 1.75 to 4.96 tons.
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Represent the following sentence as an algebraic expression, where "a number" is the letter x. You do not need to simplify. Nine times the cube of a number. COORD
The solution of the given problem of expression comes out to be 9x³.
What exactly is an expression?There is a need for calculations like variable multiplying, splitting, joining, and currently removing. If they were combined, it would read: A mathematical formula, some data, and an equation. Values, elements, and mathematical operations like additions, subtractions, mistakes, subdivisions, but also arithmetic formulas all make up a declaration of truth. It is possible to assess and analyse words and sentences.
Here,
The following is the provided sentence's algebraic expression:
=> 9x³
where x is a numerical symbol.
Therefore , the solution of the given problem of expression comes out to be 9x³.
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Complete question:
Represent the following sentence as an algebraic expression, where "a number" is the letter x. You do not need to simplify.
{Nine times the difference of 8 and a number.}
Nine times the difference of 8 and a number.
1 point) Suppose that the blood pressure of the human inhabitants of a certain Pacific island is distributed with mean μ=74 mmHg and standard deviation σ=9 mmHg. According to Chebyshev's Theorem, at least what proportion of the islander's have blood pressure in the range from 47 mmHg to 101 mmHg ?
At least 88.88% of islanders have blood pressure that falls between 47 and 101 millimetres of mercury using Chebyshev's Theorem.
For each data distribution, Chebyshev's Theorem gives a lower constraint on the percentage of data that is within a given range of standard deviations of the mean. It specifically asserts that at least 1-1/k2 of the data will fall within k standard deviations of the mean for each dataset, regardless of its shape. In this instance, we're trying to determine the percentage of islanders whose blood pressure is between 47 and 101 millimetres of mercury.
We must determine the upper and lower range boundaries' standard deviations from the mean in order to use Chebyshev's Theorem. The lowest and upper limits are both 27 mmHg below and above the mean, respectively. As we want to know what percentage of the data falls within three standard deviations of the mean, we set k=3 and the range to be 6 standard deviations broad (27 mmHg / 9 mmHg per standard deviation).
By using Chebyshev's Theorem, we can determine that at least 88.88% of the islanders have blood pressure that is within three standard deviations of the mean (1-1/32 = 8/9 = 0.8888). We can infer that at least 88.88% of islanders have blood pressure in the range of 47 mmHg to 101 mmHg as the range we are interested in is within three standard deviations of the mean.
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please please please please help me with this question
Answer:
See attached image
Step-by-step explanation:
This is how I did it
I made point A as (0,0)
Point B is 12 units right and 4 units up from A. So B is(12,4)
Point C is 8 units right and 8 units down from A so it is at (8, -8)
When dilated by 1/4 with point A as center of dilation, B coordinates are reduced by 1/4 so the image B' coordinates are (12/4, 4/4) = (3,1)
C coordinates are reduced by 1/4 so C' coordinates of image are (8/4, -8/4) = (2, -2)
The A' coordinates are unchanged at A'(0,0)
So the image is A'B'C' as shown in the blue triangle
I do not know what that other triangle is for, it plays no role in the dilation
I also realize you may have been given some other strategy for solving but this is the way I did it
I hope that works for you.
10^ 5*10^ -1 =??
please help me
Answer: 10,000
Step-by-step explanation:
10^5 = 100000 and 10^-1 = 1/10, so the answer is 10000
plis las respuestas
Answer:
3. [tex]\frac{3}{4}[/tex] and [tex]\frac{6}{8}[/tex] 4.[tex]\frac{8}{2}[/tex] and [tex]\frac{4}{1}[/tex]
5. [tex]\frac{10}{50}[/tex] 6.[tex]\frac{1}{4}[/tex] 7.[tex]\frac{45}{50}[/tex]
8. x=1 9.x=30 10.x=16
11. [tex]\frac{8}{12} \frac{4}{6} \frac{2}{3}[/tex]
12. red pencils=[tex]\frac{4}{10}[/tex] black pencils=[tex]\frac{6}{10}[/tex]
total pencil = 4+6 =10
13. no es claramente visible, pero la respuesta podría ser [tex]\frac{1}{3}[/tex] y [tex]\frac{2}{6}[/tex]
For a sample of 20 IQ scores the mean score is 105. 8. The standard deviation, o, is 15. Determine
whether a normal distribution or a t-distribution should be used or whether neither of these can be used
to construct a confidence interval. Assume that IQ scores are normally distributed,
A) Use normal distribution,
B) Cannot use normal distribution or t-distribution,
C) Use the t-distribution
The 95% confidence interval for the population mean IQ score is (99.62, 111.98), therefore option(A) use normal distribution
Since the sample size is greater than 30 (n=20), we can use the normal distribution to construct a confidence interval for the population mean.
We can use the formula:
Confidence Interval = sample mean ± z (standard error)
where z is the critical value from the standard normal distribution corresponding to the desired level of confidence, and the standard error is calculated as:
standard error = o / sqrt(n)
where o is the sample standard deviation and n is the sample size.
Assuming a 95% confidence level, we can find the critical value z from the standard normal distribution table or using a calculator. The critical value for a 95% confidence level is 1.96.
Substituting the values in the formula, we get:
Confidence Interval = 105.8 ± 1.96 × (15 / sqrt(20))
Confidence Interval = 105.8 ± 6.18
Therefore, the 95% confidence interval for the population mean IQ score is (99.62, 111.98).
Therefore, we can use the normal distribution to construct a confidence interval for the population mean IQ score.
Therefore, the correct option is (A) Use normal distribution.
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in a study of breast cancer, a mother was considered exposed if she first gave birth at 30 years of age or older. among 1,628 mothers who were exposed, 31 subsequently developed breast cancer. among the 4,450 mothers who first gave birth before the age of 30, 65 subsequently developed breast cancer. what type of study design was used for this investigation of the association age at first birth and breast cancer?
The compared to mothers who gave birth for the first time at the age of under 30 to determine the incidence of breast cancer.
The study design used for this investigation of the association between age at first birth and breast cancer is Cohort Study.What is a cohort study?A cohort study is an analytical research approach in which a group of people with a shared trait or experience are followed over time. Cohort studies are used to determine the incidence of a disease, changes in morbidity and mortality rates, and to recognize risk factors for a disease. In this study of breast cancer, the mothers who gave birth for the first time at the age of 30 or older were considered exposed, and they were compared to mothers who gave birth for the first time at the age of under 30 to determine the incidence of breast cancer.
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Is 96 grater less than or equal to one
Answer: Greater than
Step-by-step explanation: 96 is a larger number than 1
Answer: 96 is greater than one
Step-by-step explanation:
96 is greater than one because if you plot it on a number line in would be far more than zero
work out the exact cost of Arabella’s 42 dresses using the special offer?
Answer:
$328.86
Step-by-step explanation:
1 dress is $8.70
42 dresses = 42 x 8.70
42 dresses = $365.40
10% of total cost = 10/100 x 356.40
36.54
Deduct the discount from the total amount
$365.40 - $36.54 = $328.86
Find the perimeter of the triangle in units. Round to two decimal
places as necessary.
E(12,-5)
D(-1,-1
F(7,4)
Therefore , the solution of the given problem of triangle comes out to be triangle's length, rounded to two decimal places, is roughly 33.33 units.
What is a triangle, exactly?A polygon is a hexagon if it has not less than one extra segment. It has a straightforward rectangle-shaped structure. Only edges A and B can differentiate something like this from an ordinary triangular shape. Despite the exact collinearity of the borders, Euclidean geometry only produces a part of the cube. Three edges and three angles make up a triangle.
Here,
Finding the length of each side and adding them together will allow us to determine the perimeter of the triangle whose points are E(12,-5), D(-1,-1), and F(7,-4).
The length of EF is given below using the distance formula:
=> √((7 - 12) ² + (4 - (- 5))² = √(25 + 81) = √(106) = 10.30
The ED is as follows:
=> sqrt((-1 - 12)2 + (-1 - (-5))2) = sqrt(169 + 16) = sqrt(185), which is 13.60.
And DF is this long:
=> √((7-1))² + (4-1))² = √(64+25) = √(89) = 9.43
As a result, the triangle's circumference is:
=> 10.30 + 13.60 + 9.43 ≈ 33.33
The triangle's length, rounded to two decimal places, is roughly 33.33 units.
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find the following probabilities related to odds. step 1 of 2 : if the odds in favor of a horse winning a race is 8:9 , what is the probability of the horse winning the race? express your answer as a simplified fraction.
Answer: The odds in favor of a horse winning a race are given as 8:9, which means that the probability of the horse winning is 8/(8+9) = 8/17. Therefore, the probability of the horse winning the race is 8/17.
Step-by-step explanation:
The probability of the horse winning the race is 8/17.
The odds in favor of a horse winning a race is 8:9. To find: The probability of the horse winning the race. The odds are defined as: The odds in favor of an event = Number of ways an event can occur : Number of ways the event cannot occur.
Here, the odds in favor of a horse winning a race = 8 : 9. That means, the horse can win in 8 ways and lose in 9 ways. Therefore, the probability of the horse winning the race can be calculated as follows:
Probability of horse winning the race = Number of ways the horse can win / Total number of possible outcomes
= 8 / (8 + 9) [As total outcomes = winning outcomes + losing outcomes]
= 8 / 17
Therefore, the probability of the horse winning the race is 8/17.
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Which fraction looks same way even if you turn it upside down
Answer:
Question is not asked properly. Details missing. The data is not given.
∠A=5x−15
∘
start color #11accd, angle, A, end color #11accd, equals, start color #11accd, 5, x, minus, 15, degrees, end color #11accd \qquad \green{\angle B} = \green{2x +21^\circ}∠B=2x+21
∘
start color #28ae7b, angle, B, end color #28ae7b, equals, start color #28ae7b, 2, x, plus, 21, degrees, end color #28ae7b
Encuentra el valor de xxx y luego la medida de \greenD{\angle B}∠Bstart color #1fab54, angle, B, end color #1fab54:
\greenD{\angle B} =∠B=start color #1fab54, angle, B, end color #1fab54, equals
^\circ
∘
In this case, the value of x is 9 Degrees.
From the given information, we know that ∠A is equal to 5x - 15 degrees. Now, we can use this equation to find the value of x. To do this, we need to rearrange the equation and solve for x. We can do this by adding 15 degrees to both sides of the equation, which gives us:
∠A + 15 = 5x
Now, we can divide both sides of the equation by 5 to isolate x, which gives us:
x = (∠A + 15) / 5
Therefore, we have found the value of x in terms of ∠A. If we know the value of ∠A, we can substitute it into this equation to find the value of x. For example, if ∠A is equal to 30 degrees, then:
x = (30 + 15) / 5
x = 9
So, in this case, the value of x is 9 degrees. I hope this helps you with your question. If you have any further questions or need any additional help, please let me know.
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hey need help
In a fraction the numerator is 1 less than the denominator if 1 is added to the numerator and 5 to denominator the fraction becomes 1 / 2 find the original fraction
If in a fraction the numerator is 1 less than the denominator if 1 is added to the numerator and 5 to denominator the fraction becomes 1 / 2 . The the original fraction is4/5.
What is the original fraction?Let's assume that the denominator of the original fraction is x. Then, according to the problem, the numerator is x - 1.
If 1 is added to the numerator and 5 is added to the denominator, we get:
(x - 1 + 1) / (x + 5) = 1/2
Simplifying the left side of the equation, we get:
x / (x + 5) = 1/2
Multiplying both sides by 2(x + 5), we get:
2x = x + 5
Subtracting x from both sides, we get:
x = 5
So, the denominator of the original fraction is 5, and the numerator is 5 - 1 = 4.
Therefore, the original fraction is 4/5.
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Samuel cut a cylinder from a piece of wood. He measured the circumference of the base of the cylinder and found that it measures 9.42 inches. The height of the cylindrical piece of wood is 6 inches. what is the approximate volume of Samuel's wooden cylinder?
The approximate volume of Samuel's wooden cylinder is calculated as: 56.52 cubic inches.
What is the Volume of a Cylinder?The volume of a cylinder can be calculated by multiplying the circumference with the height of the cylinder.
Therefore, the volume of a cylinder is calculated as V = πr²h, where h is the height and πr² is the circumference of the cylinder.
Given the following:
Circumference = 9.42 inches
Height of the cylinder = 6 inches.
Thus, we have:
Volume of cylinder = 9.42 * 6 = 56.52 cubic inches.
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I NEED HELP ON THIS ASAP! IT'S DUE TODAY!!!
Answer:
Scalene; right triangle
Step-by-step explanation:
See picture attached.
Answer has to be right to get brainilest!!!!
Answer:
hard question
Step-by-step explanation:
Happy Thanksgiving
A container in the shape of a triangular prism is used to hold a slice of pizza. The dimensions of the container are shown in the diagram.
Pizza, 10.8 inches, 7.2 inches, 1.5 inches, 9 inches
What is the volume of the container in cubic inches?
For the pizza box shaped in triangular prism, the volume is obtained as 58.32 cubic inches.
What is volume?
Each thing in three dimensions takes up some space. The volume of this area is what is being measured. The space occupied within an object's borders in three dimensions is referred to as its volume. It is sometimes referred to as the object's capacity.
The volume of a triangular prism is given by the formula:
V = (1/2) × base × height × length
where the base and height are the dimensions of the triangular base and the length is the height of the prism.
In this case, the base of the prism is a right-angled triangle with base 10.8 inches and height 7.2 inches.
The area of the base can be found as -
Area = (1/2) × base × height
= (1/2) × 10.8 × 7.2
= 38.88 square inches
The length of the prism is given as 9 inches.
Therefore, the volume of the container can be calculated as -
V = (1/2) × base × height × length
= 38.88 × 1.5
= 58.32 cubic inches
Hence, the volume of the container is 58.32 cubic inches.
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PLEASE ANSWER I WILL MAKE U BRAINLIST
Show steps thank you.
Answer:
x = 2 and y = 0
Step-by-step explanation:
Let's solve your system by elimination.
2x−3y=4;4x+3y=8
2x−3y=4
4x+3y=8
Add these equations to eliminate y:
6x=12
Then solve 6x=12 for x:
6x=12
x = 2
Now that we've found x let's plug it back in to solve for y.
Write down an original equation:
2x−3y=4
Substitute 2 for x in 2x−3y=4:
(2)(2)−3y=4
−3y+4=4 (Simplify both sides of the equation)
−3y+4+−4=4+−4 (Add -4 to both sides)
−3y=0
y = 0
Y=3(x+5)^2-1
Plot five points on the parabola: the vertex, two points to the left of the vertex, and two points to the right of the vertex. Then click on the graph-a-function button.
Answer:
Step-by-step explanation:
I have no clue on how to do this, help?
Answer:
[tex]40 {ft}^{2} [/tex]
Step-by-step explanation:
You will get the shaded area by subtracting the smaller rectangle from the area of the larger restangle.
The larger rectangle's area would be
[tex]10 \: ft \: \times 8 \: ft = 80 \: {ft}^{2} \\ [/tex]
The smaller rectanlge's area is
[tex]5 \: ft \: \times \: 8ft \: = 40 \: {ft}^{2} [/tex]
The shaded region would be
[tex]80 - 40 = 40 {ft}^{2} [/tex]
PLEASE HELP!! WILL GIVE BRAINLIEST!!
Question 4: You are creating an obstacle for a community event. The area of the rectangular space is represented by the expression 8x^2 - 12x. The width of the rectangular space is represented by the expression 4x.
Part A: Write an expression to represent the length of the rectangular space. (1pts)
SHOW ALL WORK TO FIND ALL LENGTHS (3pts) (MANDATORY!)
Answer: Length of Rectangular Space
______________________________
Part B: Prove your answer from Part A is corrected by multiplying the length and width of the rectangle. SHOW ALL WORK!!
Answer Write the expression in standard form:
___________________________________
Answer:
See below.
Step-by-step explanation:
First, we know that area = length times width. so the first step is to figure out how we got 8[tex]x^{2}[/tex]-12x. factor out 4x from the equation to get the length of the rectangular length. 4x(2x-3). so the length of the rectangle is 2x-3. to prove your answer, FOIL the two numbers, 4x and 2x-3, to get 8[tex]x^{2}[/tex]-12x. This equation is in standard form. The final answer is 8[tex]x^{2}[/tex]-12x
Please ASAP Help
Will mark brainlest due at 12:00
Answer:
X = -22
Step-by-step explanation:
WX = 1/7 WY
The length of WY = 2 - (-26) = 2 + 26 = 28
WX = 1/7WY = 28/7 = 4
X = -26 + 4 = -22
Answer:
X is at -22
Step-by-step explanation.
distance between W and Y is 28. 28/7 is 4. 4 away from w is -22.
Please Answer Please
Answer:
The court for 10 and under is 18 feet shorter so the area of this court is ( 78 − 18 ) × 27 = 1620 (78-18)\times27=1620 (78−18)×27=1620 square feet. Therefore, the area of this court is 2106 − 1620 = 486 2106-1620=486 2106−1620=486 square feet less than that of the regular court.
A bag holds 13 marbles. 6 are blue, 2 are green, and 5 are red.
If you select two marbles from the bag in a row without replacing the first marble, what is the probability that the first marble is blue and the second marble is green?
Answer: 6/13-2/13
I'm correct cause I always am hehe
A company that records and sells rewritable DVDs wants to compare the reliability of DVD fabricating machines produced by two different manufacturers. They randomly select 500 DVDs produced by each fabricator and find that 484 of the disks produced by the first machine are acceptable and 480 of the disks produced by the second machine are acceptable. Let 1 and 2 = the proportions of acceptable DVDs produced by the first and second machines, respectively.
Are the conditions for calculating a confidence interval for 1−2 met?
Random: met
10%: does not apply
Large Counts: met
Random: met
10%: not met
Large Counts: met
Random: met
10%: does not apply
Large Counts: not met
Random: not met
10%: does not apply
Large Counts: met
Random: met
10%: met
Large Counts: met
If 484 of the disks produced by the first machine are acceptable and 480 of the disks produced by the second machine are acceptable, random , 10% and large counts are met. Correct option is E.
To calculate a confidence interval for the difference between the proportions of acceptable DVDs produced by two different fabricating machines, we need to ensure that the following conditions are met:
Random: The sample of DVDs from each machine should be selected randomly, without any bias. This is important to ensure that the sample is representative of the population of all DVDs produced by each machine.
The sample size should be no more than 10% of the population of DVDs produced by each machine. This is important to ensure that the sampling distribution of the sample proportions is approximately normal.
Large counts: The number of acceptable and unacceptable DVDs in each sample should be large enough to satisfy the normal approximation to the sampling distribution of the sample proportions.
Therefore, the correct answer is (e) Random: met, 10%: met, Large Counts: met. All conditions for calculating a confidence interval for the difference between the proportions of acceptable DVDs produced by two different fabricating machines are met in this scenario.
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The plan for a new football stadium calls for the stands to be in a region defined by two concentric ellipses (Figure ). The outer ellipse is to be 240 yd long and 200 yd wide. The inner ellipse is to be 200 yd long and 100 yd wide. A football field of standard dimensions, 120 yd by 160 ft, will be laid out in the center of the inner ellipse.
a. Find particular equations of the two ellipses.
b. Find the eccentricities of the two ellipses.
c. How much clearance will there be between the corner of the field and the inner ellipse in the direction of the end line?
d. The area of an ellipse is where and are the major and minor radii, respectively. To the nearest square yard, what is the area of the stands? If each seat takes about 0.8 square yards, what will be the approximate seating capacity of the stadium?
e. Show that the familiar formula for the area of a circle is a special case of the formula for the area of an ellipse.
The particular equation of the outer ellipse is therefore: 1002x2 + 2402y2 - 2402 * 1002 = 0, the inner ellipse is therefore:502x2 + 2002y2 - 2002 * 502 = 0, Clearance= 343.29 yd and Approximate seats= 47124 seats
The plan for a new football stadium calls for the stands to be in a region defined by two concentric ellipses. The outer ellipse is to be 240 yd long and 200 yd wide. The inner ellipse is to be 200 yd long and 100 yd wide. A football field of standard dimensions, 120 yd by 160 ft, will be laid out in the center of the inner ellipse.
To find the particular equations of the two ellipses, we can make use of the following: standard form of equation of an ellipse:x2/a2 + y2/b2 = 1 The outer ellipse: Major axis = 240 yd = 480 yd/2a = 480/2 = 240 yd Minor axis = 200 yd/2b = 100 yd Now, substituting the values in the standard equation of an ellipse, we have:x2/2402 + y2/1002 = 1Multiplying both sides by 2402 * 1002, we have: 1002x2 + 2402y2 = 2402 * 1002
The particular equation of the outer ellipse is therefore: 1002x2 + 2402y2 - 2402 * 1002 = 0 The inner ellipse: Major axis = 200 yd = 400 yd/2a = 400/2 = 200 yd Minor axis = 100 yd/2b = 50 yd Now, substituting the values in the standard equation of an ellipse, we have: x2/2002 + y2/502 = 1 Multiplying both sides by 2002 * 502, we have:502x2 + 2002y2 = 2002 * 502The particular equation of the inner ellipse is therefore:502x2 + 2002y2 - 2002 * 502 = 0
The eccentricity of an ellipse is given by the formula: e = √(1 - b2/a2)For the outer ellipse: a = 240, b = 100∴ e = √(1 - 1002/2402) = √0.694 = 0.833 For the inner ellipse: a = 200, b = 50∴ e = √(1 - 502/2002) = √0.9375 = 0.968
To find the clearance between the corner of the field and the inner ellipse in the direction of the end line, we need to find the distance between the foci of the inner ellipse, which is given by: d = 2 * √(a2 - b2)where a = 200 yd and b = 50 yd. Substituting the values, we have: d = 2 * √(2002 - 502)≈ 387.29 yd The clearance between the corner of the field and the inner ellipse in the direction of the end line is approximately 387.29 - 120/2 = 343.29 yd.
The area of the stands is the area between the two ellipses. Using the formula given in the question, A = πab, where a = 240 yd/2 and b = 200 yd/2, the area is: A = π * 120 * 100 = 37,699.1 sq yd Approximate seating capacity of the stadium will be number of seats = 37,699.1 / 0.8 = 47123.88 ≈ 47124 seats.
A circle is a special case of an ellipse, where both radii are equal. In the case of a circle with radius r, the formula for the area of an ellipse is reduced to the formula for the area of a circle: A = πab = πr2 = area of a circle
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To find a segment parallel to another segment and through a given point, fold
a piece of paper so that the fold goes through the point and the pieces of the
segment on either side of the fold match up.
• À. True
• B. False
Finding a line segment parallel to another segment and passing through a given point is true.
What is line segment?A line segment is a finite portion of a line that is bounded by two distinct points.
According to question:The statement is asking whether the following method is true or false for finding a line segment parallel to another segment and passing through a given point:
Take a piece of paper.Fold the paper so that the fold line goes through the given point.Place the original segment on the paper so that one end of the segment is on one side of the fold and the other end is on the other side of the fold.Trace the segment onto the paper on both sides of the fold.Remove the original segment and connect the two traced segments with a straight line.This method is called the "fold-and-copy" method, and it is a valid way to construct a segment parallel to another segment and passing through a given point. The reason this works is because when the paper is folded along the given point, the fold line is perpendicular to the original segment. When the segment is copied onto the paper on both sides of the fold, the resulting segments are also perpendicular to the fold line. Since two lines that are both perpendicular to the same line are parallel, the resulting segment is parallel to the original segment. The resulting segment also passes through the given point, since it was copied from the original segment which passes through the given point. Therefore, the statement is true.
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