What’s the answer???

Answer:

B

Step-by-step explanation:

5^2+12^2=25+144=169=13^2 which will form a right angle triangle

The uncertainties ⟨Δx^2⟩ and ⟨Δp^2⟩ are given by the expressions ⟨Δx^2⟩ = a^2/2 and ⟨Δp^2⟩ = (ℏ^2)/(8a^2).

To calculate the uncertainties ⟨Δx^2⟩ and ⟨Δp^2⟩ for the given wave packet, we need to find the expectation values of the observables (x^ - ⟨x⟩)^2 and (p^ - ⟨p⟩)^2, respectively.

The wave packet is represented by the function ψ(x) = [2πa^2]^(1/2) exp[-4a^2(x - ⟨x⟩)^2 + iℏpx]. Here, a is a constant, ⟨x⟩ represents the expectation value of x, and p is the momentum operator.

To find ⟨Δx^2⟩, we calculate the expectation value of (x^ - ⟨x⟩)^2 with respect to ψ(x). By integrating (x - ⟨x⟩)^2 multiplied by the squared magnitude of the wave packet over all x values, we obtain the result ⟨Δx^2⟩ = a^2/2.

Similarly, to find ⟨Δp^2⟩, we calculate the expectation value of (p^ - ⟨p⟩)^2 with respect to ψ(x). Since p is the momentum operator, its expectation value is ⟨p⟩ = 0 for the given wave packet. By integrating (p^ - 0)^2 multiplied by the squared magnitude of the wave packet over all x values, we obtain the result ⟨Δp^2⟩ = (ℏ^2)/(8a^2).

Therefore, the uncertainties ⟨Δx^2⟩ and ⟨Δp^2⟩ are given by the expressions ⟨Δx^2⟩ = a^2/2 and ⟨Δp^2⟩ = (ℏ^2)/(8a^2).

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Answer:

20v-6

Step-by-step explanation:

To find the perimeter we have to add up all of our sides

9v-6+9v-6+2v+6

Combine light terms

20v-6

1) The points A(-2,1), B(2,3), and C(3,1) form a triangle ABC when plotted on a coordinate plane.

2) To verify if the triangle is a right triangle, we can check if the square of the length of one side is equal to the sum of the squares of the other two sides.

3) The graph of the equation y = x^2 - 9 - x^3 exhibits symmetry with respect to the x-axis, y-axis, and the origin.

4) To find the equation of the line passing through the points (4,3) and (-4,-4), we can use the formula for the slope-intercept form of a linear equation.

1) Plotting the points A(-2,1), B(2,3), and C(3,1) on a coordinate plane will form a triangle ABC with these vertices.

2) To verify if the triangle is a right triangle, we can calculate the slopes of the sides AB, BC, and AC. If the product of any two slopes is -1, then the triangle is a right triangle. Alternatively, we can also check if the square of the length of one side is equal to the sum of the squares of the other two sides using the Pythagorean theorem.

3) The equation y = x^2 - 9 - x^3 represents a curve on a graph. By observing the equation, we can see that it is symmetric with respect to the x-axis, y-axis, and the origin. This means that if we reflect the graph across any of these axes or the origin, we obtain an identical graph.

4) To find the equation of the line passing through the points (4,3) and (-4,-4), we can use the formula for the slope-intercept form of a linear equation: y = mx + b. First, we can find the slope (m) using the formula (change in y)/(change in x). Then, substituting one of the points into the equation, we can solve for the y-intercept (b). Finally, we can write the equation of the line in the form y = mx + b.

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Answer:

Step-by-step explanation:

CABD is half-circle as CD is diameter and cuts the circle in half

Correct choice is d)

Answer:

km square is the area and square km is the same as km square

Answer:

8

Step-by-step explanation:

now, just draw a pic and it will make sense

Answer:

d) 10t +12;$52

Step-by-step explanation:

The value of the sum of squares due to regression (ssr) if the total sum of squares (sst) is 25.32 and the sum of squares due to error (sse) is 31.89

Regression is a statistical technique used in the fields of finance, investing, and other disciplines that aims to establish the nature and strength of the connection between a single dependent variable (often represented by Y) and a number of independent variables (known as independent variables).

The most popular variation of this method is linear regression, which is also known as simple regression or ordinary least squares (OLS).

Linear regression determines the actual linear relationship between two variables based on a line of best fit. As a result, the slope of a straight line was used to depict linear regression indicating how altering one variable impacts modifying another. In a linear regression connection, the value of one variable when the value of the other is zero is represented by the y-intercept.

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The pair of events, selecting a number 1 through 6 by tossing a standard number cube, and selecting a second number by tossing the number cube again, can be classified as independent events.

In probability theory, two events are considered independent if the occurrence or non-occurrence of one event does not affect the probability of the occurrence of the other event. In this case, the outcome of the first toss has no influence on the outcome of the second toss.

Let's consider the sample space for each event:

Event A: Selecting a number 1 through 6 on the first toss of the number cube.

Event B: Selecting a number on the second toss of the number cube.

For Event A, the sample space is {1, 2, 3, 4, 5, 6}, as there are six possible outcomes.

For Event B, the sample space is also {1, 2, 3, 4, 5, 6}, as the outcome of the first toss does not affect the possible outcomes of the second toss.

Since the sample space for both events is the same, and the outcome of the first toss does not impact the outcome of the second toss, the pair of events can be classified as independent events.

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To express a number in cientific notation (often refered to as scientific form), we take the first digit and then put a decimal right after it. Next we take a count of all other numbers after the first digit and that would determine the value of the index (exponent).

In this case, we hould have 9, followed by a decimal, and then followed by 18 numbers. Note that any number aside zero would be written down after the first digit. Any zero would be disregarded.

Hence;

Values of x for which the series converges are in the interval (1, 5).

To find the values of x for which the series converges, we will use the Ratio Test. The series is given by:

∑ (x − 3)ⁿ / 2n, n = 0 to ∞

1. First, let's find the ratio of the (n+1)th term to the nth term:

((x - 3)ⁿ⁺¹ / 2ⁿ⁺¹) / ((x - 3)ⁿ / 2ⁿ) = (x - 3)ⁿ⁺¹ * 2ⁿ / (2ⁿ⁺¹ * (x - 3)ⁿ)

2. Simplify the ratio:

((x - 3)ⁿ⁺¹ / (x - 3)ⁿ) * (2ⁿ / 2ⁿ⁺¹) = (x - 3) * (1/2)

3. Apply the Ratio Test, the series converges if the absolute value of the ratio is less than 1:

| (x - 3) * (1/2) | < 1

4. Isolate x:

-2 < x - 3 < 2

5. Add 3 to all parts of the inequality:

1 < x < 5

Series converging values are in the interval (1, 5).

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A random variable is a numerical quantity resulting from a probability experiment. It assigns a numerical value to each possible outcome of the experiment. The correct answer is D.

The outcome of a probability experiment is often a count or a measure. When this occurs, the outcome is called a random variable.

Random variables can be classified into two types: discrete and continuous.

Discrete random variables have finite or countable outcomes, while continuous random variables have uncountable outcomes, making it essential to consider the probability density function to determine the probabilities associated with various intervals.

Hence,the answer of the question is D.

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The probability of rolling a sum greater than 5 is 13/18.

Probability can be defined as the ratio of the number of favourable outcomes to the total number of outcomes of an event.

We know that, probability of an event = Number of favourable outcomes/Total number of outcomes

There are six different possible outcomes for a dice, the set (S) of all the outcomes can be listed as follows:

(1,1) (1,2) (1,3) (1,4) (1,5) (1,6)

(2,1) (2,2) (2,3) (2,4) (2,5) (2,6)

(3,1) (3,2) (3,3) (3,4) (3,5) (3,6)

(4,1) (4,2) (4,3) (4,4) (4,5) (4,6)

(5,1) (5,2) (5,3) (5,4) (5,5) (5,6)

(6,1) (6,2) (6,3) (6,4) (6,5) (6,6)

a) The probability of rolling a sum of even number

Number of favorable outcomes = 9

Total number of outcomes = 36

Now, probability = 9/36

= 1/4

b) The probability of rolling a sum of odd numbers

Number of favorable outcomes = 9

Total number of outcomes = 36

Now, probability = 9/36

= 1/4

c) The probability of rolling a sum of greater than 5

Number of favorable outcomes = 26

Total number of outcomes = 36

Now, probability = 26/36

= 13/18

Therefore, the probability of rolling a sum greater than 5 is 13/18.

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Using translation concepts, the translation rule is given by:

(x,y) -> (x + 13, y + 7).

A translation is represented by a change in the function graph, according to operations such as multiplication or sum/subtraction either in it’s definition or in it’s domain. Examples are shift left/right or bottom/up, vertical or horizontal stretching or compression, and reflections over the x-axis or the y-axis.

Comparing v with v', and w with with w', we get that:

Hence the translation rule is given by:

(x,y) -> (x + 13, y + 7).

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Answer:

The set is (5, 6]

Step-by-step explanation:

Ok, let's see the different possibles notations to describe sets.

If we want to describe a discrete set, we use {}

Like in the set:

{1, 2, 3}

That set only contains the numbers 1, 2, and 3.

If we want to describe a continuous set that does not include the extremes, we use ()

For example:

(1, 3)

Contains all the numbers between 1 and 3, but does not include 1 and 3.

If we want to include the extremes, we need to use []

[1, 3]

This set is all the numbers between 1 and 3, including the values 1 and 3.

And we can mix these last two notations, so if we want a set that includes all the numbers between 5 and 6, not including 5 but including 6, we need to write:

(5, 6]

AB and YX are corresponding sides, BC and XZ are corresponding sides, and AC and YZ are corresponding sides of given triangle.

What is triangle?

A triangle is a two-dimensional geometric shape that has three sides, three angles, and three vertices. It is one of the simplest polygonal shapes and is commonly studied in geometry.

Since we have:

∠A ≅ ∠Y

∠B ≅ ∠X

∠C ≅ ∠Z

We can conclude that the two triangles ABC and XYZ are similar by the Angle-Angle (AA) similarity theorem.

Therefore, the corresponding sides of the two triangles are proportional to each other. We can write this as:

AB : YX = BC : XZ = AC : YZ

where AB and YX are corresponding sides, BC and XZ are corresponding sides, and AC and YZ are corresponding sides.

In other words, the ratio of the length of each side in triangle ABC to the corresponding side in triangle XYZ is constant.

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Answer:

1.98

Step-by-step explanation:

Find the number in the hundredth place 8 and look one place to the right for the rounding digit 3. Round up if this number is greater than or equal to 5 and round down if it is less than 5.

The mean temperature in Cleveland, OH, was 64°F. The accumulated degree days for Cleveland on 6-7 September 2022 were 1. The rest of Ohio accumulated degree days during the same period.

Based on the given information, the maximum temperature in Cleveland was 70°F and the minimum temperature was 58°F. To find the mean temperature, we add the maximum and minimum temperatures and divide by 2: (70°F + 58°F) / 2 = 128°F / 2 = 64°F.

Degree days are a measure of heating or cooling requirements. In this case, since the mean temperature in Cleveland was lower than a certain base temperature, degree days were accumulated. The base temperature is typically set at 65°F for cooling and 55°F for heating. Since the mean temperature in Cleveland was below the base temperature, the accumulated degree days are heating degree days (HDD).

For the specific date of 6-7 September 2022, Cleveland accumulated 1 heating degree day (HDD). This means that the average temperature for that period was 1 degree below the base temperature of 55°F.

The remaining stations in Ohio also accumulated heating degree days (HDD) on 6-7 September 2022. This indicates that the temperatures across the rest of Ohio were below the base temperature during that period.

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Answer:

3.1666667

Step-by-step explanation:

The answer is 3.1666667

Answer:

12

Step-by-step explanation:

There are

16 cups = 1 gallon

3 gallons = 48 cups

48 divided by 4 = 12 batches of rice pudding

Answer

12

Step-by-step explanation:

4 cup of milk = 1 batch of rice pudding

1 gallon of milk= 16 cups of milk

3 gallon of milk = 3x 16

=48 answer

then, 48 cup of milk = 48 ÷ 4

= 12 answer

Hence, stacy can make 12 batch of pudding with 3 gallon of milk.

She can cover 8 chests every 4 hours

The ratio is

We need to find how many chests she can cover in 6 hours

We will use the equivalent ratio to solve it

Where x is the number of chests

Use the cross multiplication

Divide

1. The value of x is 179.

2. The value of angle A is 22 degrees.

1. In a hexagon, the sum of all interior angles is equal to 720 degrees. We are given the measurements of four interior angles: 92, 100, 94, and 140 degrees. Let's calculate the sum of these four angles:

Sum of the four given angles = 92 + 100 + 94 + 140 = 426 degrees

To find the remaining two angles, we subtract the sum of the four given angles from the sum of all interior angles:

Sum of remaining two angles = 720 - 426 = 294 degrees

Since the two remaining angles are equal in measure, we divide the sum by 2 to find the measure of each angle:

Measure of each remaining angle = 294 / 2 = 147 degrees

We are given that each remaining angle measures (x - 32) degrees, so we can set up the equation:

x - 32 = 147

Solving for x:

x = 147 + 32 = 179

Therefore, the value of x is 179.

2. In right triangle ABC, we are given that cos(3x + 30) = sin(12x), and angle A is represented as (3x + 10). We need to find the value of angle A.

Since cosine is equal to the sine of the complementary angle, we can write:

cos(3x + 30) = cos(90 - 12x)

By comparing the angles inside the parentheses, we set up the equation:

3x + 30 = 90 - 12x

Solving for x:

15x = 60

x = 4

Now that we have the value of x, we can find the measure of angle A:

Angle A = 3x + 10 = 3(4) + 10 = 22

Therefore, the value of angle A is 22 degrees.

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Answer:

Frainkie is correct it takes $12.50

Step-by-step explanation:

37.50 divided by 3 to find out one wreath's cost which is 12.50

hope this helps

plz mark me brainliest.

To transform the regression equation, you would divide both sides of the equation by the square root of Var(ut), which is σ√(zt). This transformation helps in obtaining the transformed regression coefficients and standard errors that account for the heteroscedasticity in the error term.

When the variance of the error term (ut) is related to a known variable (zt), it implies the presence of heteroscedasticity in the regression model. Heteroscedasticity means that the variability of the error term is not constant across different levels of the independent variables.

To address this issue, we can transform the regression equation by dividing both sides by the square root of the variance of the error term, which is σ√(zt). This transformation is known as the weighted least squares (WLS) estimation.

By dividing both sides of the equation, we can obtain the transformed regression equation with the error term divided by its standard deviation. This transformation accounts for the heteroscedasticity by giving different weights to the observations based on the variability of the error term. It allows for a more appropriate estimation of the regression coefficients and standard errors, as it gives more weight to observations with smaller error variances and less weight to observations with larger error variances.

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Answer:

Antonio a économisé un total de 5 £ pendant ces deux semaines.

Step-by-step explanation:

La semaine dernière, Antonio a économisé la moitié de son allocation, soit:

1/2 * 6 £ = 3 £

Cette semaine, il a économisé un tiers de son allocation, soit:

1/3 * 6 £ = 2 £

Le montant total d'argent économisé pendant ces deux semaines est la somme des économies des deux semaines :

3 £ + 2 £ = 5 £

Ainsi, Antonio a économisé un total de 5 £ pendant ces deux semaines.

Answer:

Antonio saved £5 in two weeks.

Step-by-step explanation:

First week: 6(1/2) = 6/2 = 3

Second Week: 6(1/3) = 6/3 = 2

3 + 2 = £5

Hope this helps.

The transformation is a vertical stretch

From the question, we have

f(x) = -|x| + 1

g(x) = -8|x| + 8

The transformation from the graph of f(x) = -|x| + 1 to the graph of g(x) = -8|x| + 8 is a vertical stretching by a factor of 8.

The transformation results in the graph of g(x) being 8 times taller than the graph of f(x).

Mathmatically, this is

g(x) = 8f(x)

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To graph a rational function example, start by writing the equation in the form y = (ax + b)/(cx + d).

Then, plot the points where the denominator equals zero (when x = -d/c). These points are called vertical asymptotes.Next, plot the points where the numerator equals zero (when x = -b/a). These are called horizontal asymptotes.Finally, plot points between the vertical and horizontal asymptotes to graph the rational function.Plotting the points between the vertical and horizontal asymptotes will allow you to see the shape of the graph. Start by plotting points on either side of the vertical and horizontal asymptotes. Then, plot points at evenly spaced x-values between the vertical and horizontal asymptotes. For example, if the vertical asymptote is at x=-d/c, and the horizontal asymptote is at x=-b/a, you can plot points at x=-1.5d/c, x=-0.5d/c, x=-1.5b/a, and x=-0.5b/a. By plotting these points and connecting them with a smooth curve, you can graph the rational function.

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Answer:

1.9 feets (nearest tenth) ;

24.9 feets

Step-by-step explanation:

Given that :

Angle, θ = 4.3°

Length of ramp = 25

Maximum Height, h ;

sinθ = opposite / hypotenus

Sin 4.3 = h / 25

0.0749787 * 25 = h

1.874 feet = h

1.9 feets (nearest tenth)

Distance along the ground the ramp could cover :

Cos θ = Adjacent / hypotenus

Cos 4.3 = x / 25

0.9971851 = x / 25

0.9971851 * 25 = x

x = 24.929

x = 24.9 (nearest tenth)