If the value X is -1/4 what is the order of these expressions from least to greatest,X, 1 minus X, X minus one, negative one minus X

Finding percentages is an important skill that can be useful in many areas of life, from calculating discounts on shopping to understanding financial reports.

To find a percentage, you need to first convert the percentage to a decimal by dividing it by 100. For example, 22% becomes 0.22. Next, multiply this decimal by the number you are calculating the percentage of, which in this case is 40. So, 0.22 x 40 = 8.8. Therefore, 22% of 40 is 8.8. It's worth noting that percentages can also be found by using proportions, where the percentage is the part over the whole, multiplied by 100. But using the above method is more straightforward and quicker.

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TRUE.

When calculating a p-value, we always assume that the null hypothesis is true.TRUE/FALSE

The statement "When calculating a p-value, we always assume that the null hypothesis is true"

Answer: TRUE.

When calculating a p-value, we assume that the null hypothesis is true and use it as a basis for determining the probability of obtaining the observed sample results or more extreme results, assuming that the null hypothesis is true. If the resulting p-value is small (e.g., less than the chosen significance level), we reject the null hypothesis in favor of the alternative hypothesis. If the p-value is large, we fail to reject the null hypothesis. So, the null hypothesis serves as the reference point for calculating the p-value and making a decision about the hypotheses.

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The vertex form of the parabola is y = 2(x-1)² + 3.

We have,

Vertex = (1, 3)

passing point (-1, 11)

Use the vertex form of the quadratic:

y = a(x - h)² + k

Here h = 1 and k = 3

So, 11 = a(-1 -1)² + 3

11 = 4a² + 3

8 = 4a²

a² = 8/4

a² = 4

a =2

Then, the vertex form of parabola is

y = 2(x-1)² + 3

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The type of scale used to evaluate the food at a new restaurant on 7-point scales with bipolar adjectives such as good-bad and inexpensive-expensive is known as a Likert scale.

This type of scale is commonly used in surveys to measure attitudes and opinions towards a particular topic, in this case, the food at a new restaurant. A Likert scale consists of a series of statements or adjectives that respondents are asked to rate on a scale that ranges from strongly disagree to strongly agree or, in this case, from bad to good and from inexpensive to expensive.

The bipolar adjectives used in the scale allow for a clear distinction between the positive and negative aspects of the food, which helps to ensure that the responses are more accurate and meaningful. The 7-point scale provides a wider range of options than a binary scale, which allows for more nuanced and detailed responses.

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The equation of the parabola in vertex form is y = (1/20)(x + 7)^2 + 1.

To write the equation of a parabola in vertex form, we use the equation:

y = a(x - h)^2 + k

where (h, k) represents the vertex of the parabola.

Given that the vertex is (-7, 1), we have h = -7 and k = 1. Substituting these values into the equation, we get:

y = a(x + 7)^2 + 1

Now, we need to find the value of 'a' to complete the equation. Since the parabola passes through the point (10, 309/20), we can substitute these coordinates into the equation:

309/20 = a(10 + 7)^2 + 1

309/20 = a(17)^2 + 1

309/20 = a(289) + 1

309/20 = 289a + 1

To simplify the fraction, we multiply both sides by 20:

309 = 20(289a + 1)

309 = 5780a + 20

Now, we solve for 'a':

5780a = 309 - 20

5780a = 289

a = 289/5780

a = 1/20

Substituting this value of 'a' back into the equation, we have:

y = (1/20)(x + 7)^2 + 1

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The left circle represents isosceles triangles.

An isosceles triangle is described as  a triangle that has two sides of equal length.

In the area of the organizer where the circles meet, an isosceles and obtuse triangle would be appropriate

A triangle is also described as  a three-sided geometric shape whose internal angles added together shouldn't be greater than 180°.

We should note that the two sides and the two sharp angles of an isosceles right triangle are equal.

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The area between the two curves f(x) and g(x) over the interval [0, 3] is 4.5 square units. To calculate the area between the two curves f(x) = 14x + x^2 - 2x^3 and g(x) = x^2 - 4x, we need to follow these steps:

1. Find the points of intersection: Set f(x) = g(x) and solve for x.

14x + x^2 - 2x^3 = x^2 - 4x

Rearrange the equation:

2x^3 - 18x = 0

Factor out 2x:

2x(x^2 - 9) = 0

Solve for x:

x = 0, x = 3, x = -3

2. Determine the interval: The points of intersection are x = -3, x = 0, and x = 3. We'll consider the interval [0, 3] for this problem.

3. Set up the integral: To find the area between the curves, we'll integrate the difference between the functions over the interval [0, 3]:

Area = ∫[f(x) - g(x)] dx from 0 to 3

Area = ∫[(14x + x^2 - 2x^3) - (x^2 - 4x)] dx from 0 to 3

Simplify the integrand:

Area = ∫(10x - 2x^3) dx from 0 to 3

4. Integrate and evaluate: Find the antiderivative and evaluate it at the limits of integration:

Area = [5x^2 - (1/2)x^4] from 0 to 3

Area = (5(3)^2 - (1/2)(3)^4) - (5(0)^2 - (1/2)(0)^4)

Area = (45 - 40.5) - (0)

Area = 4.5

Therefore, The area between the two curves f(x) and g(x) over the interval [0, 3] is 4.5 square units.

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The number of randomly presented items that children can repeat immediately after the items are presented is called their immediate memory span or short-term memory capacity.

The number of randomly presented items that children can repeat immediately after the items are presented is called their immediate memory span or short-term memory capacity.

The capacity of short-term memory is limited and varies from person to person and depending on the complexity of the information being presented.

The typical range of immediate memory span for children is around 5 to 9 items, with older children and adults having a slightly larger capacity.

However,

Some individuals with exceptional memory abilities, such as memory athletes, can recall significantly more items in short-term memory.

Factors that can affect short-term memory capacity include the nature of the items being presented their familiarity or meaningfulness, the duration of the presentation and the individual's level of attention and working memory capacity.

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The points that lie on the circle are:

(4, 6)

(-4, 6)

The points that lie on the circle are:

(4,6)

(-4,6)

Let's take the point (6,6) as an example.

To see if this point lies on the given circle, we can use the distance formula to find the distance between the center of the circle (4,6) and the point (6,6):

[tex]distance = \sqrt{(6-4)^2 + (6-6)^2} = \sqrt{2^2 + 0^2} = 2[/tex]

Since the radius of the circle is 10, and the distance between the center and the point is 2, we know that the point is not on the circle.

Therefore, (6,6) is not a point on the circle with center (4,6) and radius 10.

One point on the circle is (4, 16). To see why, we can use the distance formula to calculate the distance from the center of the circle at (4, 6) to the point (4, 16):

[tex]d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2)}\\\\d = \sqrt{(4 - 4)^2 + (16 - 6)^2}\\\\d = \sqrt{10^2}\\\\d = 10[/tex]

Since the distance from the center to the point is equal to the radius of the circle, (4, 16) must lie on the circle.

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Complete question:

Answer:

[tex](x + 1)(x - 1)[/tex]

Step-by-step explanation:

We can factor this expression using the rule:

[tex]a^2 - b^2 = (a + b)(a - b)[/tex]

First, we can solve for a:

   [tex]x^2 = a^2[/tex]

[tex]\sqrt{x^2} = \sqrt{a^2}[/tex]

    [tex]x = a[/tex]

Next, we can solve for b:

   [tex]1 = b^2[/tex]

[tex]\sqrt1 = \sqrt{b^2[/tex]

   [tex]1 = b[/tex]

Finally, we can plug these a and b values into the above rule:

[tex](a + b)(a - b)[/tex]

[tex]\boxed{(x + 1)(x - 1)}[/tex]

Answer:

1539/4 (improper fraction) or 384 3/4 (simplified fraction)

Step-by-step explanation:

To find the improper fraction, write 384.75 as a fraction:

384.75/1

Then, since you have 2 decimal places after the ., multiply the entire fraction by 100:

38475/100

Next, find the GCF, which is 25, and simplify this fraction to find the final improper fraction:

1539/4

To find the simplified fraction, we already have the whole number, 384, so we have to convert 0.75 to a fraction which is 3/4, because 0.75 is 3/4 of 100:

384 3/4

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Answer:  Modern dance is a team-based practise that needs participants to move in rhythmic sequences. Choreographed routines in modern dance frequently entail dancers synchronising and coordinating their movements, which are frequently rhythmical and expressive. Baseball, downhill skiing, and competitive swimming all demand teamwork and coordination, yet these sports don't frequently incorporate rhythmic movement patterns.

Step-by-step explanation:

The seventh-grade class supplied 175 bags of snacks and 225 beverages for the school dance.

Finding the number of bags of snacks and beverages:

Let's assume that the number of bags of snacks supplied by the seventh-grade class is represented by 'x'. Since the number of beverages supplied is 50 more than the number of bags of snacks, we can represent the number of beverages supplied as 'x + 50'.

The total number of items supplied is 400, so we can write:

x + (x + 50) = 400

Simplifying this equation, we get:

2x + 50 = 400

Subtracting 50 from both sides, we get:

2x = 350

Dividing both sides by 2, we get:

x = 175

Therefore, the number of bags of snacks supplied by the seventh-grade class is 175. Using the fact that the number of beverages supplied is 50 more than the number of bags of snacks, we can calculate the number of beverages supplied as:

x + 50 = 175 + 50 = 225

Therefore, the number of beverages supplied by the seventh-grade class is 225.

So, the seventh-grade class supplied 175 bags of snacks and 225 beverages for the school dance.

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Answer: To find the equation of the line that is perpendicular to the given line and passes through the point (0,9), we need to first find the slope of the given line. We can do this by rearranging the equation into slope-intercept form (y = mx + b):

2x + 12y = -1

12y = -2x - 1

y = (-2/12)x - 1/12

y = (-1/6)x - 1/12

So the slope of the given line is -1/6.

To find the slope of the line perpendicular to the given line, we use the fact that the slopes of perpendicular lines are negative reciprocals of each other. That is:

m1 * m2 = -1

where m1 is the slope of the given line and m2 is the slope of the line we want to find.

So, the slope of the line we want to find is the negative reciprocal of -1/6, which is 6.

Now we have the slope (m = 6) and a point on the line (0,9), so we can use the point-slope form of the equation of a line to find the equation:

y - y1 = m(x - x1)

where x1 = 0 and y1 = 9

y - 9 = 6(x - 0)

y - 9 = 6x

y = 6x + 9

Therefore, the equation of the line that is perpendicular to the given line and passes through the point (0,9) is y = 6x + 9, in slope-intercept form.

Aloioi

Step-by-step explanation:

Answer:

C (-6, -1)

Step-by-step explanation:

The union of Event A and Event B (AuB) is the set of elements that are in either Event A or Event B, or both: AuB = {1, 2, 3, 4, 6, 7}.

In mathematics, a set is a collection of distinct objects. The union of two sets is the set of all distinct elements that belong to either one of the sets or both. In this case, Event A and Event B are two sets with some overlapping elements.

The union of Event A and Event B (AuB) contains all the elements from both sets, without any duplication. Therefore, the resulting set for AuB is {1, 2, 3, 4, 6, 7}.

The concept of set union is fundamental in set theory and has various applications in other fields of mathematics, such as calculus and probability theory.

Understanding set theory is essential for studying these and other mathematical disciplines.

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When printing a newspaper, you are most likely to use a line screen setting of 85 lpi (lines per inch).

The volume of the given hemisphere is: 3619.1 mm³

The hemisphere is also defined as a half of a sphere.

A hemisphere is also referred to as a half of the earth, usually as divided into northern and southern halves by the equator, or into western and eastern halves by an imaginary line passing through the poles.

The formula for the volume of a hemisphere is:

V = ²/₃πr³

Where:

V is volume

r is radius

We are given:

r = 12 mm

Thus:
V = ²/₃π(12)³

V = 3619.1 mm³

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Not replacing the first marble makes the events dependent because the outcome of the first draw affects the probability of the second draw. After the first blue marble is drawn, there are only two blue marbles and four marbles in total remaining in the bag. Therefore, the probability of drawing a second blue marble is lower than the probability of drawing a blue marble on the first draw. The probability of drawing two blue marbles is calculated as the product of the probability of drawing a blue marble on the first draw and the probability of drawing another blue marble on the second draw, given that the first marble was not replaced.

srry if bad quality

The graph of f is both decreasing and concave down on the interval (9, infinity). Therefore, the correct answer is (D).

To determine where the graph of f is both decreasing and concave down, we need to analyze the first and second derivatives of f.

First derivative:

f'(x) = x² - 8x - 9

Second derivative:

f''(x) = 2x - 8

The graph of f is decreasing when f'(x) < 0, and concave down when f''(x) < 0.

To find where the graph of f is both decreasing and concave down, we need to look for where f'(x) < 0 and f''(x) < 0 simultaneously.

f'(x) < 0 when x < -1 or x > 9.

f''(x) < 0 when x < 4.

Therefore, the graph of f is both decreasing and concave down on the interval (9, infinity).

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(i) The probability of both events A and B happening, P(A and B), is 0.12. (ii) The probability of either event A or event B happening, P (A or B), is 0.58.

First, let's define what it means for events to be independent. Two events A and B are independent if the occurrence of one event does not affect the probability of the occurrence of the other event. In other words, the probability of both events occurring together is equal to the product of their individual probabilities: P (A and B) = P(A) x P(B).

Using this formula, we can find the probability of both events occurring together:
P (A and B) = P (A) x P(B) = 0.3 x 0.4 = 0.12

Now let's find the probability of either event occurring. We can use the formula P (A or B) = P (A) + P(B) - P(A and B).
We already know that P(A) = 0.3 and P(B) = 0.4, and we just found that P (A and B) = 0.12. Plugging those values into the formula, we get:
P (A or B) = 0.3 + 0.4 - 0.12 = 0.58
So, the probability of either event occurring is 0.58.
In summary:
(i) P (A and B) = 0.12
(ii) P (A or B) = 0.58

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Answer: To find the area of the walkway surrounding the circular garden, we need to subtract the area of the circular garden from the area of the larger circle that includes the garden and the walkway.

The diameter of the larger circle is equal to the diameter of the garden plus the width of the walkway on both sides, which is 1 meter on each side. So the diameter of the larger circle is:

10 + 1 + 1 = 12 meters

The radius of the larger circle is half of its diameter, which is:

12 / 2 = 6 meters

The area of the larger circle is:

πr^2 = π(6)^2 = 36π square meters

The radius of the circular garden is half of its diameter, which is:

10 / 2 = 5 meters

The area of the circular garden is:

πr^2 = π(5)^2 = 25π square meters

Therefore, the area of the walkway surrounding the circular garden is the difference between the area of the larger circle and the area of the circular garden:

Area of walkway = Area of larger circle - Area of circular garden

= 36π - 25π

= 11π square meters

So the area of the walkway is 11π square meters.

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The 12th term of the arithmetic sequence is -66.

We have,

The nth term of an arithmetic sequence can be found by the formula

an = a1 + (n-1) d,

where a1 is the first term, d is the common difference, and n is the term number.

To find a(12),

we can plug in a1 = 11, d = -7, and n = 12 into the formula:

So,

a12 = a1 + (n-1)d

a12 = 11 + (12-1)(-7)

a12 = 11 + 11(-7)

a12 = 11 - 77

a12 = -66

Therefore,

The 12th term of the arithmetic sequence is -66.

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Homoscedasticity refers to the pattern of covariation that is constant around the regression line, whether the values are small, medium, or large.

Regression line is defined as the line which is used to estimate the unknown relationship between two variables and the relationship is linear.

The equation of this line is used to find or predict the value of one of the variable from the other.

Homoscedasticity is something which assumes that the variances are equal for different groups.

So, this refers to the pattern of covariation that is constant around the regression line, whether the values are small, medium, or large.

Hence the correct term is Homoscedasticity.

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The given statement "The probability of winning a lottery is .0000000012. The Law of Large Numbers says that because this probability is so small, no one should ever win a lottery." is False because the Law of Large Numbers does not state that an event with a small probability will never occur.

In fact, the law states that as the number of trials increases, the observed frequency of an event will approach the theoretical probability of that event. So, while the probability of winning a lottery may be very small, if enough people play the lottery over a large number of trials, it is expected that some people will win.

Additionally, the Law of Large Numbers does not apply to a single event but rather to the long-term frequency of an event over a large number of trials. Therefore, it is not accurate to use the Law of Large Numbers to make predictions about individual lottery outcomes.

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The number 500 when divided by 10³ yields a quotient of 0.5.

Given that,

a number when divided by 10³ yields a quotient of 0. 5.

Let the unknown number be x.

When x is divided by 10³, we get 0.5.

x / 10³ = 0.5

Multiplying both sides by 10³, we get,

x = 0.5 × 10³

x = 0.5 × 1000

x = 500

Hence the required number is 500.

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The correct answer is (a) households 11 36 23 08 42.

To draw a sample size of 5 without replacement from a population of 50 households, we can use the random number table. The first two digits of each number in the table correspond to the row, and the next two digits correspond to the column.

To select the first household, we look at the first number in the table, which is 11. This corresponds to row 01, column 01, so we select household 01.

To select the second household, we look at the second number in the table, which is 36. This corresponds to row 03, column 06, so we select household 36.

We repeat this process for the remaining households, being careful not to select a household that has already been chosen.

Therefore, the households selected are: 11, 36, 23, 08, 42.

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