Determine the angle at which the ellipse x^2+3y^2=12 is seen from the point M (0,4)

Answers

Answer 1

Therefore, the angle at which the ellipse x² + 3y² = 12 is seen from the point M (0,4) is -30 degrees.

What is ellipse?

An ellipse is a geometric shape that resembles a stretched or squished circle. It can be defined as the set of all points in a plane, such that the sum of the distances from two fixed points, called the foci, is constant. An ellipse has two axes, a major axis and a minor axis, which intersect at the center of the ellipse. The length of the major axis is twice the distance from the center to one of the foci, while the length of the minor axis is twice the distance from the center to one of the points where the ellipse intersects the major axis. Ellipses have many applications in mathematics, physics, and engineering. They are used to model the orbits of planets and satellites, as well as the paths of objects in electric and magnetic fields. They are also used in optics to describe the shape of lenses and mirrors, and in statistics to model data distributions.

Here,

To determine the angle at which the ellipse x² + 3y² = 12 is seen from the point M (0,4), we first need to find the equation of the tangent line to the ellipse at the point (0,4).

To do this, we take the derivative of the equation of the ellipse with respect to x and evaluate it at the point (0,4):

d/dx (x² + 3y²) = 2x + 6y(dy/dx)

At the point (0,4), we have x = 0 and y = 4, so the equation becomes:

0 + 6(4)(dy/dx) = 0

Solving for dy/dx, we get:

dy/dx = 0

This means that the tangent line to the ellipse at the point (0,4) is a horizontal line passing through the point (0,4).

Now we can find the angle at which the ellipse is seen from the point M (0,4) by finding the angle between the horizontal tangent line and the line connecting the point M to the origin. This angle is given by:

tan θ = (y₂ - y₁)/(x₂ - x₁)

where (x₁, y₁) = (0,4) is the point M and (x₂, y₂) is the point where the tangent line intersects the x-axis.

Since the tangent line is horizontal, it intersects the x-axis at the point (±2√3, 4), which are the x-intercepts of the ellipse. Choosing the positive x-intercept, we have:

x₂ = 2√3

y₂ = 0

Substituting these values into the formula for the tangent, we get:

tan θ = (0 - 4)/(2√3 - 0) = -2/2√3 = -1/√3

Taking the inverse tangent of both sides, we get:

θ = -30 degrees

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Related Questions

How does the author develop the connection between Mourne Textiles and the history and culture of Ireland? Responses by explaining major historical events in Ireland and how Gerd Hay-Edie took part in them by mentioning that local Irish weavers taught Gerd Hay-Edie how to weave and make the designs by describing Gerd Hay-Edie’s career and how events in Ireland impacted the company by comparing the Norwegian fjords to the Irish landscape and Gerd Hay-Edie’s fashion sense to the typical Irish style

Answers

The author develops the connection between Mourne Textiles and the history and culture of Ireland by mentioning that local Irish weavers taught Gerd Hay-Edie how to weave and make the designs. Additionally, the author highlights the significance of the landscape and natural resources in Northern Ireland to the design and production of the textiles.

Hence, the correct answer is option B.

In the article, the author describes how Gerd Hay-Edie learned traditional weaving techniques from local weavers in Northern Ireland, and how she incorporated these techniques into her designs. The author also emphasizes the importance of the Mourne Mountains and the surrounding natural resources in shaping the textiles produced by the company.

Furthermore, the author highlights how the designs and techniques used by Mourne Textiles are rooted in Irish tradition and history. Through these details and examples, the author establishes a strong connection between Mourne Textiles and the history and culture of Ireland.

Hence, the correct answer is option B.

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--The question is incomplete, answering to the question below

"How does the author develop the connection between Mourne Textiles and the history and culture of Ireland?

A. by explaining major historical events in Ireland and how Gerd Hay-Edie took part in them

B. by mentioning that local Irish weavers taught Gerd Hay-Edie how to weave and make the designs

C. by describing Gerd Hay-Edie’s career and how events in Ireland impacted the company

D. by comparing the Norwegian fjords to the Irish landscape and Gerd Hay-Edie’s fashion sense to the typical Irish style" --

find x if the angles of a triangle are x + 23, 4x+ 17, and 80

Answers

Step-by-step explanation:

The three internal angles of a triangle sum to 180 °

x + 23      +      4x+17     +   80    = 180

5x + 120 = 180

5x = 60

x = 12 °

Probability:
Person A and Person B are playing archery together. Assume their abilities to fire the arrow at the target are exactly the same, and the probability of getting the target is 0.5 for both of them.
Now that given A has fired 201 arrows and B has fired 200 arrows, what is the probability that A gets more targets than B?

Answers

If Person A and Person B are playing archery together. the probability that A gets more targets than B is 0.5, or 50%.

How to find the probability?

The number of targets hit by A and B follows a binomial distribution with parameters n = 201 and n = 200, respectively, and p = 0.5.

To find the probability that A gets more targets than B, we need to find the probability that A hits more than 100 targets (since 100 is the average number of targets hit by each player). We can use the normal approximation to the binomial distribution to do this.

The mean of the difference in the number of targets hit by A and B is:

E(A - B) = E(A) - E(B) = np - np = 0

The variance of the difference in the number of targets hit by A and B is:

Var(A - B) = Var(A) + Var(B) = np(1-p) + np(1-p) = 100

The standard deviation of the difference is then:

SD(A - B) = sqrt(Var(A - B)) = 10

Using the normal distribution approximation, we can standardize the difference in number of targets:

Z = (X - E(A - B)) / SD(A - B)

where X is the number of targets that A hits.

P(A hits more targets than B) = P(A - B > 0)

= P(Z > (0 - 0) / 10)

= P(Z > 0)

= 0.5

Therefore, the probability that A gets more targets than B is 0.5, or 50%. This means that there is an equal chance that A will hit more targets than B as there is that B will hit more targets than A.

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Nobody could get this correct last time i asked so please someone give the correct answer

Answers

I hope this help you

Find the missing exponent 5^11/5^?=5^4
Please answer ASAP

Answers

Hope this helps you figure out the question
5^7 You just subtract both exponents 11-7=4

in a class of 40 students, 19 play tennis, 20 play netball, and 8 play neither of these sports. a student is randomly chosen from the class. determine the probability that the student:

Answers

Therefore, the probability that the student plays neither tennis nor netball is 1/5 = 0.2 or 20%.

There are 40 students in a class. 19 students play tennis, 20 students play netball, and 8 students play neither of these sports.

A student is chosen randomly from the class, and we need to determine the probability that the student: Plays tennis If a student is randomly chosen from the class, the probability that the student plays tennis is: Probability of playing tennis= (Number of students playing tennis) /

(Total number of students in the class) Probability of playing tennis= 19 / 40Plays netball if  a student is randomly chosen from the class, the probability that the student plays netball is: Probability of playing netball= (Number of students playing netball) / (Total number of students in the class)Probability of playing netball= 20 / 40 = 1/2Plays neither of these sports a student is randomly chosen from the class, the probability that the student plays neither tennis nor netball is

:Probability of playing neither tennis nor netball= (Number of students who do not play either of the two sports) / (Total number of students in the class)Probability of playing neither tennis nor netball= 8 / 40Probability that the student plays tennis and netball

Probability of playing tennis and netball = (Number of students playing both tennis and netball) / (Total number of students in the class)We are given that none of the students play both tennis and netball, so the probability of playing both tennis and netball is 0.

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A dilation maps figure QRST to its image Q'R'S'T'. What is the scale factor?
Q'R
Q2 in. T
R'
S
4 in. T'
S'

Answers

The scale factor after dilation is 2 in.

What is dilation?

Resizing an item uses a transition called dilation. Dilation is used to enlarge or contract the items. The result of this transformation is an image with the same shape as the original. Yet, there is a variation in the shape's size.

Here in the given figure QRST , the length of QT = 2in.

Now after dilation the figure Q'R'S'T' , the length of Q'T'= 4in

Then scale factor is,

=> Q'T'/QT = 4/2 = 2in.

Hence the scale factor after dilation is 2 in.

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In the equation y = x + 2, why can y only be 5 when x is 3?

Answers

Answer:

look in explanation

Step-by-step explanation:

In this equation, y can only be equal to 5 if x is labeled as 3.

Why? Because when you input the numbers into the equation, y=5 and x=3 then it will make sense.  5=3+2  If you put y as any other number the equation will not be true.

What is the area of the driveway?

Answers

The area would be 25ft * 50ft =500ft

if (2x10^n)+(4.02x10^5), what is n?

Answers

(2x10^n)+(4.02x10^5), what is n?

Step-by-step explanation:

To determine the value of n, we need to rewrite the expression as a number in scientific notation, in the form a x 10^n, where 1 ≤ a < 10.

We can start by factoring out 10^n from both terms:

(2 x 10^n) + (4.02 x 10^5) = 10^n (2 + 4.02 x 10^-5)

Now we need to divide both sides of the equation by (2 + 4.02 x 10^-5):

(2 x 10^n) + (4.02 x 10^5) / (2 + 4.02 x 10^-5) = 10^n

We can simplify the expression on the left side by multiplying the numerator and denominator by 10^5:

(2 x 10^n x 10^5 + 4.02 x 10^5) / (2 x 10^5 + 4.02) = 10^n

Simplifying the numerator:

(2 x 10^(n+5) + 4.02 x 10^5) / (2 x 10^5 + 4.02) = 10^n

Now we can cross-multiply to eliminate the fraction:

(2 x 10^(n+5) + 4.02 x 10^5) = 10^n (2 x 10^5 + 4.02)

Expanding both sides:

2 x 10^(n+5) + 4.02 x 10^5 = 2 x 10^(n+5) + 4.02 x 10^n

Subtracting 2 x 10^(n+5) from both sides:

4.02 x 10^5 = 4.02 x 10^n

Dividing both sides by 4.02:

10^5 = 10^n

Therefore, n = 5.



An equation is modeled. What value of x makes the equation true?

Answers

The value of x that makes the equation true is -1.

How to obtain the value of x

To obtain the value of x, we must first express the equation as seen in the diagram. This gives us:

5x + 6 = 1

Five x was obtained by counting the number of x's that we have in the boxes and the sum of figure 1.

Now, when we solve this, we will have

5x = 1 - 6

5x = -5

x = -1.

This then means that if we are to sum -1 five times and add 6 to it, the final value that we will have is 1.

Complete Question:

The diagram shows five boxes with the x initials and 6 boxes with figure 1. All of these are represented on the left-hand side and equated to 1.

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I wish to accumulate $100 000 over 20 years at 10% p.a. compounded annually. What should be the amount of my annual payments?

Answers

To accumulate $100,000 over 20 years at a 10% annual interest rate compound annually, you would need to make annual payments of $8,218.64.

You can use the formula for the future value of an annuity to accumulate $100,000 over 20 years at a 10% annual interest rate compound on a yearly basis:

[tex]FV = Pmt * [(1 + r)^n - 1] / r[/tex]

Where:

FV is future value, which is $100,000 in that case

Pmt: annual payment

r: annual interest rate, which is 10%

n: number of payment periods, which is 20

By plugging in values:

[tex]$100,000 = Pmt * [(1 + 0.1)^(20) - 1] / 0.1[/tex]

Solving for Pmt, we get:

[tex]Pmt = $100,000 / [(1 + 0.1)^(20) - 1] / 0.1\\Pmt = $100,000 / 12.167\\Pmt = $8,218.64[/tex]

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Choose the two random variables from this list that are continuous.
a) The average temperature in NYC during May.
b) The compensation of a Top 500 CEO.
c) The number of apples per bag in a supermarket.
d) The number of ads during the Superbowl.

Answers

The two random variables from this list that are continuous are: a) The average temperature in NYC during May. b) The compensation of a Top 500 CEO.

A continuous random variable is a variable whose values are any member of an uncountable set or any uncountable combination of such members. A continuous random variable has an infinite number of possible values, which are represented by an interval (a,b), where a and b can be any value on the real number line. A continuous random variable cannot take on individual values because there are an infinite number of values between any two points.For example, temperature, length, and weight are examples of continuous random variables.

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3. If a planet travels 8.9 x 104 mph in its orbit, how far
will it travel in 8 days?

Answers

The planet will travel a distance of 17.088 x 106 miles in 8 days.

What is distance?

Distance is a numerical measurement of how far apart two or more objects, people, or locations are from one another. It is a fundamental concept in geometry, physics, and mathematics. Distance can be measured in a variety of ways, such as kilometers, miles, feet, inches, and light years. Distance can also refer to the physical separation between two points, such as the length of a line or the circumference of a circle. Distance can also refer to the emotional or psychological divide between two people. Distance can be both positive and negative, as it can bring people together or drive them apart.

To calculate how far the planet will travel in 8 days, we must first calculate the distance the planet will travel in one day. To do this, we must multiply the speed of the planet (8.9 x 104 mph) by 24 hours, which represents one day:

Distance in 1 day = 8.9 x 104 mph x 24 hours
Distance in 1 day = 2.136 x 106 miles

Now that we know the distance in one day, we can calculate the distance the planet will travel in 8 days. To do this, we must multiply the distance in one day (2.136 x 106 miles) by 8 days:

Distance in 8 days = 2.136 x 106 miles x 8 days
Distance in 8 days = 17.088 x 106 miles

Therefore, the planet will travel a distance of 17.088 x 106 miles in 8 days.

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two step equations
find the value of the unknown variable in the equation
-9=-9(t+1)

Answers

Answer:

Step-by-step explanation:

t=0

If you replace t with zero -9=-9(0+1)

0+1=1 and -9(1)=-9

so t=0

A rectangular field is 150 metres long and 100 metres wide. How many
times would a runner have to go around the field to run 2 kilometres?

Answers

Answer:

4

Step-by-step explanation:

the distance around the field is the perimeter, which is 2(length) + 2(width)

2(150) + 2(100) = 500

2 kilometres = 2000 metres, and 2000/500 = 4

Answer: 4 times

Step-by-step explanation:

Step 1: find the Perimeter

Perimeter = 2L + 2W

= 2(150 meters) + 2(100 meters)

= 500 meters.

Step 2: find how many times the runner would have to run around the perimeter.

2 kilometers = 2000 meters

2000/500=4

The runner would need to go around the field 4 times to run 2km.

1
2
Draw lines to join 10.56 to all the equivalent values.
10.56
105 tenths and 6 hundredths
10 ones and 56 tenths
1 ten and 56 hundredths
156 hundredths

Answers

Here's a visual representation of the lines connecting each value to 10.56:

What do you mean by line intersect?

In geometry, a line intersect is a point where two or more lines cross or meet. When two lines intersect, they share a single point in common, which is called the point of intersection. This point of intersection is the solution to the system of equations formed by the two lines.

by the question.

sure, I can help you with that!

To join 10.56 to all the equivalent values, you can draw lines connecting each value to 10.56. Here's how:

105 tenths and 6 hundredths:

To convert 105 tenths and 6 hundredths to a decimal, you can add the two values together: 105/10 + 6/100 = 10.56.

Draw a line connecting "105 tenths and 6 hundredths" to "10.56".

10 ones and 56 tenths:

To convert 10 ones and 56 tenths to a decimal, you can add the two values together: 10 + 56/10 = 10.56.

Draw a line connecting "10 ones and 56 tenths" to "10.56".

1 ten and 56 hundredths:

To convert 1 ten and 56 hundredths to a decimal, you can add the two values together: 10 + 56/100 = 10.56.

Draw a line connecting "1 ten and 56 hundredths" to "10.56".

156 hundredths:

To convert 156 hundredths to a decimal, you can divide the value by 100: 156/100 = 1.56.

Add 1 to the whole number part to get 10.56: 1 + 0.56 = 10.56.

Draw a line connecting "156 hundredths" to "10.56".

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The area of a square depends on the length of its sides. Answer the questions below regarding the relationship between the area of the square and the length of one side of the square.

Answers

Answer:

Step-by-step explanation:

function

slope

x value

y value

Liam says that the algebraic equation 6x + (-4) = 3y has two variables, coefficients of 6 and 3, and two terms. Is he correct? Explain.

PLS ASAP THIS IS A EXAM

Answers

Yes we can say that Liam's interpretation of the algebraic expression is correct because it has two variables, coefficients of 6 and 3, and two terms.

How to interpret Algebraic expressions?

In Mathematics, an algebraic expression is defined as an expression that is normally made up of variables, constants, coefficients, and then arithmetic operations. These mentioned items are the different parts that make up the algebraic expression.

Let us consider an expression, 3x + 5y - 8

Here, the parts of the expression are:

Coefficients are 3 and 5

Constant is 8

Variables are x and y

Terms are 3x, 5y

Mathematical operators used are plus (+) and minus (-).

We are given the algebraic equation 6x + (-4) = 3y

Thus, it has:

Two coefficients which are 6 and 3

Two variables which are x and y

Two terms which are 6x and 3y

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what does x = ?

25 = x + 6.5

Answers

Answer:

18.5

Step-by-step explanation:

25-6.5=18.5

x=18.5

Find the volume of this sphere.
Use 3 for TT.
7cm
V ~ [?]cm³
V = πTr³

Answers

The volume of the sphere is 1372 cubic cm for the given radius.

What is volume?

The area that any three-dimensional solid occupies is known as its volume. These solids can take the form of a cube, cuboid, cone, cylinder, or sphere. Many forms have various volumes. We have examined the several solids and forms that are specified in three dimensions, such as cubes, cuboids, cylinders, cones, etc., in 3D geometry. We will discover how to find the volume for each of these forms.

The volume of the sphere is given by the formula:

V = 4/3πr³

Substituting the value of π = 3 and r = 7 we have:

V = 4/3(3)(7)³

V = 1372 cubic cm.

Hence, the volume of the sphere is 1372 cubic cm for the given radius.

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What is the reciprocal of 0.9?

Answers

Answer:

1.11111111

Step-by-step explanation:

Answer: 1/0.9

Step-by-step explanation:

Simply put 1 as the numerator of the given number to get the reciprocal.

I’m in desperate need of help.
Please

Answers

The horizontal distance covered by Viola is approximately 1282.6 meters.

The height of the plane is approximately 461.7 meters

The height of the pole is approximately 159.8 feet.

The perimeter is 44.2.

How to calculate the value

The horizontal distance covered by Viola can be calculated by using trigonometry. The angle of inclination is 9°, and the distance traveled up the hill is 200 meters.

Let x be the horizontal distance covered. Then we have:

tan(9°) = 200/x

x = 200/tan(9°) ≈ 1282.6 meters

Therefore, the horizontal distance covered by Viola is approximately 1282.6 meters.

We can use trigonometry to find the height of the plane. Let h be the height of the plane above the atoll, and let d be the horizontal distance from the airplane to the atoll. Then we have:

tan(7°) = h/d

h = d * tan(7°) ≈ 461.7 meters

Therefore, the height of the plane is approximately 461.7 meters.

We can use trigonometry to find the height of the pole. Let h be the height of the pole, and let d be the distance from the surveyor to the base of the pole. Then we have:

tan(44°) = h/(d + 4)

h = (d + 4) * tan(44°)

h = (140 + 4) * tan(44°) ≈ 159.8 feet

Therefore, the height of the pole is approximately 159.8 feet.

In a 30°-60°-90° triangle, the hypotenuse is twice as long as the shorter leg and √3 times as long as the longer leg. Therefore, the shorter leg has length 18/2 = 9, and the longer leg has length 18√3/2 = 9√3.

The perimeter of the triangle is the sum of the lengths of the three sides, which are 9, 9√3, and 18. Therefore, the perimeter is:

9 + 9√3 + 18 = 27 + 9√3 ≈ 44.2

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A chemist is testing new drink flavors for a food company. He has containers with the following amounts of liquid in them:
1/4L, 1/4L, 1/2L, 1/8L, 1/2L, 1/16L, 1/4L, 1/4L, 1/8L
Which line plot describes the chemist's data?

A × × ×
× × × ×
<------|---------|---------|---------|------>
1/16 1/8 1/4 1/2

×
×
B × × ×
× × × ×
<------|---------|----------|---------|------>
1/16 1/8 1/4 1/2


×
× ×
C × × ×
× × × ×
<------|---------|----------|---------|------>
1/16 1/8 1/4 1/2



×
B × × ×
× × ×
<------|---------|----------|---------|------>
1/16 1/8 1/4 1/2

Please tell me the answer is that I don't understand​

Answers

Answer:

Step-by-step explanation:

1

Graph the image of ABC after a reflection over the line Y = x

Answers

Check the picture below.

Give the center and the radius of the circle with the equation
(x - 2)² + (y + 5)² = 144.
Center: (
Radius:

Answers

Using the equation, the center is (-2,5) and the radius is 12 units.

Define center and radius of circle?

Use the formula (x-a) ² + (y-b) ² = r² to determine a circle's equation when you are aware of its radius and center.

Here, stands for the circle's center, and is its radius. This equation is essentially a variant way of writing the general equation for a circle.

The given question is:

(x - 2) ² + (y + 5) ² = 144.

Now this can be written as:

(x - 2) ² + (y + 5) ² = 12²

The circle of center (x₁, y₁) and radius r is written as:

(x - x₁) ² + (y - y₁) ² = r²

Hence, the center is (-2,5) and the radius is 12 units.

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Find the length L of the curve x = y (y - 25/96 cube root y^3, 0 lessthanorequalto y lessthanorequalto 243. Set up: L = integral^243_0 squareroot 1 + (f'(x))^2 dy, where f'(y) = Simplify L = integral^243_0 squareroot (g(y))^2 dy, where g(y) = Integrate L =

Answers

The length L of the curve is approximately 185.35 units.

To find the length of the curve, we first need to find the derivative of the given function:

f'(y) = 1 - (25/32) y^(-2/3)

Next, we need to find the integrand by squaring the derivative and adding 1:

g(y) = √(1 + [1 - (25/32) y^(-2/3)]^2)

Then, we can use this integrand to set up the integral:

L = ∫[0,243] g(y) dy

L= 185.35 units

Using a calculator or software, we can evaluate this integral to find the length L of the curve, which is approximately 185.35 units. Hence the length of curve is  185.35 units

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mes fuller recently tested her 120 keyboarding students to see how many words per mintue they can type. The results were normally a distriubuted with a mean of 45 and a standard deviation of 6

Answers

Using the standard normal distribution table, we can find that the probability of a student typing more than 50 words per minute is 0.2033 or 20.33%.

What is probability?

Probability is a measure of the likelihood of an event occurring. It is a number between 0 and 1, where 0 means the event is impossible and 1 means the event is certain to happen.

It seems like you have given me information about the distribution of typing speed for Mes Fuller's 120 keyboarding students. The distribution is normally distributed with a mean (μ) of 45 words per minute and a standard deviation (σ) of 6 words per minute.

A normal distribution is a continuous probability distribution that is symmetric around the mean value. The mean value is the center of the distribution, and the standard deviation measures the amount of variability or spread of the data.

With this information, we can calculate probabilities for different values of typing speed using the standard normal distribution table or a statistical software program.

For example, if we want to know the probability of a student typing more than 50 words per minute, we can calculate the z-score as follows:

z = (x - μ) / σ = (50 - 45) / 6 = 0.83

therefore, the standard normal distribution table, we can find that the probability of a student typing more than 50 words per minute is 0.2033 or 20.33%.

Similarly, we can calculate probabilities for other values of typing speed using the same method.

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Answer:

Question #3 *I need help*

Step-by-step explanation:

Students need to be in the top 2% in order to be eligible for the national typing competition, if Carla can type 56 wpm, is she eligible?

i need help on this! ty!

Answers

The relative frequency is 8/25.

Describe Relative Frequency?

Relative frequency is a statistical concept that refers to the proportion of times that an event occurs in a given sample or population. It is calculated by dividing the number of times the event occurs by the total number of observations in the sample or population.

Relative frequency is an important concept in probability theory and statistics because it provides a way to estimate the probability of an event occurring based on the observed data. As the sample size increases, the relative frequency becomes a more accurate estimate of the true probability of the event.

Relative frequency is also used in hypothesis testing, where it is used to test whether a particular hypothesis is supported by the data. In this case, the observed relative frequency is compared to the expected relative frequency under the null hypothesis to determine whether the difference between the two is statistically significant.

The total number of spins is 75 and the number of times the spinner landed on 3 is 24.

Therefore, the relative frequency for the event "spin a 3" is:

24/75 = 8/25

So, the relative frequency is 8/25.

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The total number of spins is 75 and the number of times the spinner landed on 3 is 24.

The "spin a 3" occurrence has a relative frequency of [tex]\frac{8}{25}[/tex].

Describe Relative Frequency?

A statistical concept known as "relative frequency" describes the percentage of times an event happens in a given sample or population. It is calculated by dividing the total number of observations in the sample or group by the frequency of the event.

Because it offers a method to calculate the probability of an event occurring based on the observed data, relative frequency is a crucial concept in probability theory and statistics. The relative frequency becomes a more precise indicator of the actual probability of the event as sample size rises.

In order to determine whether a specific hypothesis is backed by the data, relative frequency is also used in hypothesis testing. To determine

whether the difference between the two is statistically significant, the observed relative frequency is in this instance compared to the expected relative frequency under the null hypothesis.

There were 75 total spins, and 3 appeared 24 times during those rotations.

As a consequence, the proportional frequency of "spin a 3" is as follows:

[tex]\frac{24}{75} =\frac{8}{25}[/tex]

So, the relative frequency is [tex]\frac{8}{25}[/tex].

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Express each of the following percentages as a fraction (a) 5⅛% (b) 91.4%​

Answers

Answer:

Step-by-step explanation:

(a)   [tex]5\frac{1}{8} =\frac{41}{8}[/tex]

      So we get

          [tex]5\frac{1}{8}\% =\frac{41}{8}\div100[/tex]

                   [tex]= \frac{41}{8} \times \frac{1}{100}[/tex]

                   [tex]=\frac{41}{800}[/tex]  

(b)    [tex]91.4=91\frac{4}{10} =91\frac{2}{5} =\frac{457}{5}[/tex]  

       So we get

               [tex]91.4\%=\frac{457}{5} \div100[/tex]

                          [tex]=\frac{457}{5} \times \frac{1}{100}[/tex]

                          [tex]=\frac{457}{500}[/tex]                

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