which of the following measures can be calculated for qualitative data only?
a. mean
b. median
c. mode
d. none of these

Answer:

Explanation:

Wxndy~~

Answer:25

Step-by-step explanation:

Additive inverse of 19/-6 is 19/6

Additive inverse of -2/3 is 2/3

Multiplicative inverse of 19/-6 is -6/19

Multiplicative inverse of  -2/3 is  3/-2 (also written as -3/2)

(a) The additive inverse of a number is that number that when added to it gives 0.

For example, the additive inverse of x is -x.

This is because adding -x to x gives 0. i.e

x + (-x) = 0

In other words, the additive inverse of a number is the negative of that number.

Given:

(i) 19/-6

The additive inverse of 19/-6 is the negative of 19/-6 which is -(19/-6).

-(19/-6) then gives 19/6

Therefore, the additive inverse of 19/-6 is 19/6

(ii) -2/3

The additive inverse of -2/3 is the negative of -2/3 which is -(-2/3).

-(-2/3) then gives 2/3

Therefore, the additive inverse of -2/3 is 2/3

(b) The multiplicative inverse of a number is that number that when multiplied by it gives 1.

For example, the multiplicative inverse of y is 1/y.

This is because multiplying y by 1/y gives 1. i.e

y x (1/y) = 1

In other words, the multiplicative inverse of a number is the reciprocal of that number.

Given:

(i) 19/-6

The multiplicative inverse of 19/-6 is the reciprocal of 19/-6 which is 1/(19/-6).

1 / (19/-6) then gives -6/19

This is found by just swapping the numerator(19) and the denominator(-6)

Therefore, the multiplicative inverse of 19/-6 is -6/19

(ii) -2/3

The multiplicative inverse of -2/3 is the reciprocal of -2/3 which is 1/(-2/3).

1 / ( -2/3) then gives  3/-2

This is found by just swapping the numerator(-2) and the denominator(3)

Therefore, the multiplicative inverse of  -2/3 is  3/-2 (also written as -3/2).

Answer:7/5

Step-by-step explanation:

Start at the bottom dot and count up then go over to the right and count until you have reached the other dot.

Answer:

7/5

7 over 5 is the slope

Becca made a total of 24 rolls and 12 biscuits.

Multiplication is one of the four elementary mathematical operations of arithmetic, with the other ones being addition, subtraction, and division. The result of a multiplication operation is called a product.

Becca made 2 trays of rolls and biscuits, with 12 rolls and 6 biscuits in each tray. To find the total number of rolls and biscuits, we need to multiply the number of rolls and biscuits per tray by the number of trays, and then add them together:

Total rolls = 2 trays × 12 rolls per tray = 24 rolls

Total biscuits = 2 trays × 6 biscuits per tray = 12 biscuits

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Answer:

544 cups of orange juice

Step-by-step explanation:

1 gallon = 16 cups

34 x 16 = 544

Answer:

12 cups

Step-by-step explanation:

3/4 = 0.75

0.75 gallons to cups = 12 cups

Answer:

I think the answer you're looking for is 86400

Step-by-step explanation:

Answer: 45

Step-by-step explanation:

Answer:

32.40 dollars

have a nice day

Step-by-step explanation:

Have a nice day

Answer:

$3

Step-by-step explanation:

28-10=18

18/6=3

Answer:

4 gallons

Step-by-step explanation:

just do 8 times 1/2 because 8 is the amount of pitchers filled but one pitcher is only half.

The appropriate simulation applet to calculate an approximate p-value is 0.0077.

The strong evidence that a short delay hinders the memorization process is strong data suggests that a brief delay impairs memorization.

Delay or no delay, answer: the number of words remembered

The mean distance between words remembered with and without delay over time is null, or zero.

Alt: The mean distance in words remembered over the long term (with no delay minus with delay) is higher than 0.

Yes, the majority of the lines do skew to the right. The mean for no delay is 10.55 whereas that for with delay is 8.7.

The mean distance in words remembered is 1.85.

1)0.0077 as the p-value

2)Strong data suggests that a brief delay impairs memorization.

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Answer:

Step-by-step explanation:

If the line has an equation of x = (some number), this is a vertical line. The slope is undefined and all the points on the line have an x-coordinate of that (some number). For example, if x = -2, then all points along this line will have an x-coordinate of -2, making it a vertical line.

Answer:

its undefined, since its a vertical line and is parallel to the y-axis it is passes though all points with a x-axis of -1

Step-by-step explanation:

The radians will the hour hand on a clock rotation for 23hr and 6hr is 23/6π and π.

We have to find the radians will the hour hand on a clock rotation for 23hr and 6hr.

One revolution is done by fully around the circle with the radius. After one full rotation, the radius subtends an angle of 2π radians at the circle's center. To illustrate the conversion of 1 radian to degrees, we will use the knowledge that 2π radians = 360 degrees.

2π radians = 360°

Divide the above equation by 2,

⇒ π radians = 180°

Divide the above equation by π,

⇒ 1 radian = 180°/π

⇒ 1 radian = 57.296°

Only 12 hours are represented by one full rotation of the hour hand. A whole rotation equals 360°, or two radians.

11 hours rotation equals to 330°, or 11π/6 radians.

23 hours=12+11

=360°+330° (or) 2π+11π/6

=690° (or) 23π/6

Now, 6 hours=12/2

=360°/2 (or) 2π/2

=180° (or) π.

Therefore, the radians will the hour hand on a clock rotation for 23hr and 6hr is 23/6π and π.

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The correct steps to transform equation x² + 10x + 24 = 0 into the form (x - p)² = q are:

Step 1   x² + 10x + 24 + 1 = 0 + 1

Step 2  x² + 10x + 25 = 1

Step 3  (x + 5)² = 1

In this question, we have been given an equation x² + 10x + 24 = 0

We need to transform given equation x² + 10x + 24 = 0 into the form (x - p)² = q

x² + 10x + 24 = 0                    .............(Given equation)

x² + 10x + 24 + 1 = 0 + 1          ............(Add 1 to each side)

x² + 10x + 25 = 1

x² + 2(5)x + 5² = 1

(x + 5)² = 1

Therefore, the correct steps to transform equation x² + 10x + 24 = 0 into the form (x - p)² = q are:

Step 1   x² + 10x + 24 + 1 = 0 + 1

Step 2  x² + 10x + 25 = 1

Step 3  (x + 5)² = 1

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Answer:

1

Step-by-step explanation:

The formula for slope is y2 - y1 over x2 - x1.

-8--2 = -6

6-12= -6

-6/-6 = 1

The z-score of x = -2, if it is 2.78 standard deviations to the left of the mean, is D. More than 2.5.

A z-score is a measure of how many standard deviations a data point is from the mean. In this case, the data point x = -2 is 2.78 standard deviations to the left of the mean. This means that the z-score is -2.78. Since the absolute value of -2.78 is greater than 2.5, the correct answer is D. More than 2.5.

Here's how to calculate the z-score:

z = (x - μ) / σ

where z is the z-score, x is the data point, μ is the mean, and σ is the standard deviation.

In this case, we are given that x = -2 and that it is 2.78 standard deviations to the left of the mean. This means that:

z = -2.78

So the z-score is -2.78, which is greater than 2.5 in absolute value. Therefore, the correct answer is D. More than 2.5.

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Emma is asking an empirical question so that she she can test her hypothesis

What is a Empirical hypothesis?

Something empirical is something based on real evidence .

Evidence that is verifiable by observation as opposed to something that is true in theory or by some kind of reckoning or logic

A hypothesis is a theory that is put forward for further examination to see if it is correct. It is not a call but it is an explanation that fits the available evidence so , An empirical hypothesis is a theory that is based on real evidence and experience but that has not been proven yet

So, According to the question

Emma wants to know if long distance relationship in college have a greater likelihood of ending than a relationship that are not long distance and for that she creates a questionnaire and the crowds 100 student from our school to complete the questionnaire so she can test her hypothesis

Here, Emma is asking an empirical questions ( question about experience) and will conclude the test based on these 100 students experience and thoughts.

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Given that students turn in their homework and a teacher rewards them with computer time and the more frequently they turn in their homework, the more they are allowed to use the computers. Students have been turning in their homework with increasing frequency, therefore, the computer time is serving as a POSITIVE REINFORCEMENT.

Positive reinforcement is a behavior modification strategy that entails rewarding or reinforcing a certain action to encourage it to happen again. It is a technique used in operant conditioning, a theory of behavior management that uses rewards and punishments to shape behavior. In other words, positive reinforcement entails the addition of a positive stimulus following a specific action that leads to an increase in the likelihood of that action repeating in the future.

Example, The parents of a child give them $5 for every good grade received, resulting in better grades in the future.

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Positional numeration is a system of representing numbers using positional notation. In this system, each digit represents a multiple of the base of the number system, which is usually 10 in our decimal system. The number 3.15569 x 10^7 in positional numeration is 31,556,900.

The value of a digit is determined by its position, with the rightmost digit representing the ones place, the next digit to the left representing the tens place, and so on. To convert the given number, 3.15569 x 10^7, into positional numeration, we first need to express it in scientific notation. In scientific notation, a number is expressed as a product of a coefficient and a power of 10. In this case, the coefficient is 3.15569, and the power of 10 is 7. Therefore, the given number can be expressed as: 3.15569 x 10^7

To convert this number into positional numeration, we can simply multiply the coefficient by the power of 10. This can be done by moving the decimal point of the coefficient 7 places to the right, since 10^7 is a power of 10 with exponent 7. The resulting number is: 31,556,900

Therefore, the number 3.15569 x 10^7 in positional numeration is 31,556,900. It is important to remember that positional numeration is a system of representing numbers using positional notation based on the base of the number system, which is usually 10 in our decimal system.

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Answer:

d

Step-by-step explanation:

After 24.0 days, 2.00 milligrams of an original 128.0-milligram sample remain, and 6 half-lives have occurred.

To determine the number of half-lives that occurred, we must use the half-life formula:

Final amount = Initial amount x (1/2)^(number of half-lives)Here, the initial amount of the sample is 128.0 milligrams, and the final amount is 2.0 milligrams.

Putting these values in the formula, we get:

\(2.0 = 128.0 x (1/2)^(number of half-lives)2.0/128.0 = (1/2)^(number of half-lives)log(2.0/128.0) = number of half-lives x log(1/2)log(2.0/128.0) = number of half-lives x (-0.3010)Number of half-lives = log(2.0/128.0) ÷ (-0.3010)Number of half-lives ≈ 6.13 ≈ 6\)

Therefore, 6 half-lives have occurred.

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Answer:

687.5

Step-by-step explanation:

No, a and b are not independent. The joint probability of a and b does not equal the product of their individual probabilities, indicating a dependence between the two events.

To determine if a and b are independent, we need to compare the probability of their joint occurrence with the product of their individual probabilities.

If a and b are independent, then p(a and b) should equal p(a) multiplied by p(b).

p(a and b) = p(a or b) - p(a) - p(b) = 0.88 - 0.70 - 0.60 = -0.42

Since the result is negative (-0.42), it implies that p(a and b) is not equal to p(a) multiplied by p(b), indicating that a and b are dependent events.

Based on the calculation, it can be concluded that a and b are not independent events. The joint probability of a and b does not equal the product of their individual probabilities, indicating a dependence between the two events.

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i don't speak that language so i don't know what your saying. im sorry

When two circles intersect, there can be common internal and external tangents, and if the circles intersect at two points, then the line joining their centers will bisect the common internal tangents and be perpendicular to the common external tangents.

Tangent is a line or segment that lies between the two circles, while a common external tangent is a line or segment that lies outside both circles.

Additionally, there can be a special case where the two circles are tangent to each other, meaning they touch at exactly one point.

When two circles intersect, there are a few important properties to consider. First, the two circles will intersect at either one or two points.

If they intersect at one point, then the two circles are said to be tangent to each other.

In this case, the tangent to each circle at the point of intersection is the same line. If the two circles intersect at two points, then there are two common internal tangents and two common external tangents.

Furthermore, if two circles intersect at two points, then the line joining the centers of the circles will bisect the common internal tangents and will be perpendicular to the common external tangents. This is known as the Radical Axis Theorem.

Another important property of intersecting circles is that if a line or segment intersects one circle and is tangent to the other circle at a point of intersection, then the line or segment will be a common tangent to the two circles.

The intersection of two circles can result in either no points, one point, or two points of intersection.

Tangent lines and tangent segments can also be used to create common tangents for the two circles.

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Question:

You have studied the properties and theorems of circles related to radil, chords, secants, and tangents. These components help to create angles and segments inside and outside a circle. However, there are also properties and components associated with two circles together. All circles are similar to each other and all circles are congruent when their radii have the same length. For this project, let's consider the Intersection of two circles. There are three possible arrangements.

1. No points of intersection:

2. One point of intersection:

3. Two points of intersection:

There are relationships between two circles other than the points of intersection. Those relationships involve tangent lines and tangent segments. A common tangent for two circles is a line or segment that touches both circles only once. These common tangents can be internal common tangents or external common tangents. A common internal

The cash-sharing ratio for this family is Bob:Charmaine:Kevin = 6:2:1. Bob will receive R45,000, Charmaine will receive R15,000, and Kevin will receive R7,500. Bob receives 60% of the prize money.The percentage difference in earnings between Bob and Charmaine is 200%.

To determine the cash-sharing ratio, we consider the proportions mentioned in the problem. Bob gets three times as much as Charmaine, and Charmaine gets twice as much as Kevin. Therefore, the ratio of their shares will be 6:2:1 (Bob:Charmaine:Kevin).

To calculate the amount each member will receive, we divide the total prize money of R75,000 according to the cash-sharing ratio. Bob will receive 6/9 (or 2/3) of the total prize money, which is R45,000. Charmaine will receive 2/9 of the total prize money, which is R15,000. Kevin will receive 1/9 of the total prize money, which is R7,500.

To find the percentage of the prize money Bob receives, we divide his share (R45,000) by the total prize money (R75,000) and multiply by 100. The calculation is (45,000/75,000) x 100 = 60%. Therefore, Bob receives 60% of the prize money.

The percentage difference in earnings between Bob and Charmaine can be calculated by finding the difference between their shares and dividing it by Charmaine's share. The calculation is ((45,000 - 15,000)/15,000) x 100 = 200%. Therefore, Bob's earnings are 200% more than Charmaine's.

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The area of the surface obtained by rotating the circle \(x^2 + y^2 = r^2\) about the line y = r is π²r² square units.

To find the area of the surface obtained by rotating the circle

\(x^2 + y^2 = r^2\) about the line y = r, we can use the method of cylindrical shells.

The circle \(x^2 + y^2 = r^2\) is centered at the origin (0, 0) with a radius r. The line y = r is the line y-axis but shifted up by r units.

When we rotate the circle about the line y = r, it forms a 3D shape called a torus or a donut shape.

Consider a small strip on the circle at a distance y from the line y = r.

This small strip is at a distance r - y from the y-axis.

The length of this strip is the circumference of the circle at y, which is 2πy (since the circumference of a circle is 2π times its radius).

The width of this strip is the change in x, which we can denote as dx.

The area of this small strip is then given by the product of its length and width, which is 2πy dx.

Now, to find the total surface area, we integrate this area over the range of y values from -r to r (since the circle is symmetric about the y-axis):

Total Surface Area = ∫[from -r to r] 2πy dx

Now, we need to express y in terms of x using the equation of the circle \(x^2 + y^2 = r^2:\\y^2 = r^2 - x^2\)

y = ±√(r² - x²)

Since we are considering the upper half of the circle, we take the positive square root:

y = √(r² - x²)

Now, we can rewrite the integral with respect to x:

Total Surface Area = ∫[from -r to r] 2π√(r² - x²) dx

To solve this integral, we can make a trigonometric substitution:

Let x = r sin(θ), then dx = r cos(θ) dθ.

When x = -r, θ = -π/2, and when x = r, θ = π/2.

Now the integral becomes:

Total Surface Area = ∫[from -π/2 to π/2] 2π√(r² - (r sin(θ))²) (r cos(θ)) dθ

Total Surface Area = 2πr² ∫[from -π/2 to π/2] √(1 - sin²(θ)) cos(θ) dθ

Now, we can use the trigonometric identity:

sin²(θ) + cos²(θ) = 1

√(1 - sin²(θ)) = cos(θ)

Total Surface Area = 2πr² ∫[from -π/2 to π/2] cos²(θ) dθ

Now, use the trigonometric identity: cos²(θ) = (1 + cos(2θ))/2

Total Surface Area = 2πr² ∫[from -π/2 to π/2] (1 + cos(2θ))/2 dθ

Total Surface Area = 2πr² [θ/2 + (sin(2θ))/4] [from -π/2 to π/2]

Total Surface Area = 2πr² [(π/2 + sin(π) - (-π/2 + sin(-π)))/4]

Since sin(π) = 0 and sin(-π) = 0:

Total Surface Area = 2πr² [(π/2 - (-π/2))/4]

Total Surface Area = 2πr² (π/2)

Total Surface Area = π²r²

So, the area of the surface obtained by rotating the circle \(x^2 + y^2 = r^2\) about the line y = r is π²r² square units.

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Answer:y=12.1244

X=24.2487

Step-by-step explanation:

SOHCATOA or you could have used Pythagorean theorem after you found one of the sides, but I find that it’s quicker to use this.