Kenisha is about to call a Bingo number in a classroom game from 1-75.

1. Describe an event that is likely to happen, but not certain, for the
number she calls.

2. Describe an event that is unlikely to happen, but not impossible, for
the number she calls.

3. Describe an event that is certain to happen for the number she calls.

PLEASE HELP WILL VOTE BRAINLIEST 20 POINTS !!

Answer:

Step-by-step explanation:

x = 174 + 180 - x

2x = 354

x = 177

180 - x  =  3

Answer:

The supplementary angle of an angle is the angle that, when added to the original angle, gives 180 degrees. So, if an angle measures 174 degrees more than the measure of its supplementary angle, then the two angles will add up to 354 degrees. This means that the measure of the original angle is 177 degrees, and the measure of the supplementary angle is 177 degrees.

Here is the solution in equation form:

Let x be the measure of the angle.

x = 180 - x + 174

2x = 354

x = 177

Therefore, the measure of the angle is 177 degrees, and the measure of the supplementary angle is 177 degrees.

The function f(x) is equal to 5x+2 x-1. We'll solve the following parts of the problem: a. Determine the vertical and horizontal asymptotes. b. Determine the domain and range. c. Determine the x and y intercept. d. Sketch the graph. a. Determine the vertical and horizontal asymptotes.

To find the vertical asymptotes of a rational function, we have to identify any values of x that make the denominator of the function equal to zero. In this case, the denominator of f(x) is [tex](x-1)[/tex], so the vertical asymptote is x = 1. The horizontal asymptote of f(x) is determined by looking at the degrees of the numerator and denominator.

Since the degree of the numerator (1) is less than the degree of the denominator (2), the horizontal asymptote is y=0.b. Determine the domain and range The domain of the function f(x) is the set of all real numbers except x=1 (since the function is undefined at x

=1). The range is the set of all real numbers.

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As per the given data, approximately 14.29% of the data points fall into the interval 88 to 89, based on the given histogram.

Thank you for providing the histogram. From the histogram, we can estimate the portion of data points that falls into the interval 88 to 89 by examining the relative height of the bars.

In the given histogram, the bar representing the interval 88 to 89 has a height of approximately 4 units. To estimate the portion of data points, we need to consider the total height of all the bars.

From the histogram, we can see that the total height of all the bars is 28 units. Since the bar for the interval 88 to 89 has a height of 4 units, we can estimate the portion as follows:

Portion = (Height of the bar for interval 88 to 89) / (Total height of all bars)

       = 4 / 28

       = 0.142857 (rounded to six decimal places)

Therefore, approximately 14.29% of the data points fall into the interval 88 to 89, based on the given histogram.

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We cannot have a fractional number of people, the maximum number of people that can go to the amusement park is 5.

The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.

Let's assume that the number of people going to the amusement park is "x".

The cost of parking is fixed at $8.50, so the remaining budget for tickets is $195 - $8.50 = $186.50.

The cost per person for tickets is $33, so the total cost of tickets for "x" people will be $33x.

So, we need to find the maximum value of "x" such that $33x + $8.50 ≤ $195.

$33x + $8.50 ≤ $195

$33x ≤ $195 - $8.50

$33x ≤ $186.50

x ≤ $186.50 ÷ $33

x ≤ 5.65

Since we cannot have a fractional number of people, the maximum number of people that can go to the amusement park is 5.

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Answer:

Money Left = -0.50(Games Played) + 47.50

The equation that best represents how much money you have left as you play the games is based on the information provided: Money Left = -0.50 Games Played + 47.50

The amount of money you still have after a specific number of games is represented by this equation.

Given that each game costs $0.50 to play, the phrase "-0.50 Games Played" refers to the total amount of money spent on games.

Thus, the number "47.50" refers to the starting balance you held before beginning any game play. You may calculate how much money is left by deducting the amount you spent on games from the starting sum.

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This query will return the total awards paid for each category, sorted in descending order by the award paid field.

To answer your question, we would use the sum aggregate function to calculate the total awards paid for each category. We would group the data by category and then use the sum function to calculate the total award paid for each group. To sort the data in descending order by the award paid field, we would use the ORDER BY clause with the DESC keyword. The SQL query to achieve this would look something like this:
SELECT category, SUM(award_paid) AS total_awards_paid
FROM awards_table
GROUP BY category
ORDER BY total_awards_paid DESC;
This query will return the total awards paid for each category, sorted in descending order by the award paid field.
Use the SUM aggregate function in a SQL query to find the total awards paid for each category. You'll need to group the results by the category and sort them in descending order by the total award paid. Here's an example of a SQL query that would accomplish this:
```
SELECT category, SUM(award_paid) as total_awards
FROM awards_table
GROUP BY category
ORDER BY total_awards DESC;
```

In this query, we're selecting the category and sum of the award_paid field, grouping the results by category, and sorting them in descending order by the total awards.

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The Cartesian coordinate system is also referred to as a plane because it represents a two-dimensional space.

In mathematics, a plane is a flat surface that extends infinitely in all directions. The Cartesian coordinate system consists of two perpendicular lines, known as the x-axis and y-axis, which intersect at a point called the origin. These axes divide the plane into four quadrants.

The term "plane" in the context of the Cartesian coordinate system originates from the concept of a geometric plane, which is a fundamental concept in Euclidean geometry. In Euclidean geometry, a plane is a flat, two-dimensional surface that extends infinitely in all directions.

The Cartesian coordinate system borrows this concept and applies it to represent points, lines, curves, and shapes in a two-dimensional space.

By using the Cartesian coordinate system, we can assign coordinates (x, y) to any point in the plane, where the x-coordinate represents the horizontal position and the y-coordinate represents the vertical position.

This system allows us to precisely locate and describe objects or phenomena within the two-dimensional space, making it a valuable tool in various fields such as mathematics, physics, engineering, and computer graphics.

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Answer: -3/4, 5/7

Step-by-step explanation:

[tex]y = -\frac{3}{4} x +\frac{5}{7}[/tex]

In the form y = mx + b, the slope is defined to be m, and y intercept is b

so we can see the coefficient of x is -3/4, so that is m, or the slope.

similarly, the constant b can be seen as 5/7, which is the y-intercept.

The length of the radius of right cylinder is 10 feet

Cylinder is a three-dimensional shape in geometry consisting of two parallel circular bases joined together by a curved surface at a particular distance from the center.

How to determine this

Volume of Cylinder = [tex]\pi r^{2} h[/tex] = 2000π

Where [tex]\pi[/tex] = 22/7

r =?

h = 20 feet

To calculate the length of the radius

2000π = π * [tex]r^{2}[/tex] * 20

2000π = 20π * [tex]r^{2}[/tex]

Divides through by 20π

2000π/20π = 20π * [tex]r^{2}[/tex]/20π

100 = [tex]r^{2}[/tex]

Square both sides

√100 = √r

10 = r

Therefore, the radius of the cylinder is 10 feet

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The probability that Rickenbacker Airlines will receive a specific number of complaints on a given day can be determined using the Poisson distribution, given an average of 3 complaints per day.

To find the probability of receiving a specific number of complaints, we can use the Poisson distribution formula:

P(X = x) = (e^(-λ) * λ^x) / x!

Where:

P(X = x) is the probability of receiving x complaints

λ (lambda) is the average number of complaints per day

e is the base of the natural logarithm (approximately 2.71828)

x is the number of complaints we want to find the probability for

x! denotes the factorial of x

In this case, the average number of complaints per day is given as 3. Therefore, the probability of receiving a specific number of complaints can be calculated as follows:

P(X = x) = (e^(-3) * 3^x) / x!

For example, if we want to find the probability of receiving exactly 2 complaints in a day:

P(X = 2) = (e^(-3) * 3^2) / 2!

= (2.71828^(-3) * 3^2) / 2!

By plugging in the values into the formula and performing the calculations, we can determine the specific probability.

Similarly, we can calculate the probabilities for other numbers of complaints by substituting different values of x into the formula.

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The estimated conditional probability of a family having two girls if it has at least one girl is 1/2 or 0.5.

Having one girl does not provide any information about the gender of the second child, so the probability of the second child being a girl or a boy is still 50-50.

To estimate the conditional probability of a family having two girls if it has at least one girl, we can utilize the concepts of "one_girl" and "two_girls" scenarios.

Let's define "one_girl" as the event of a family having one girl, and "two_girls" as the event of a family having two girls. We want to calculate the probability of "two_girls" occurring given that "one_girl" has occurred.

The conditional probability can be calculated using the formula:

P(two_girls | one_girl) = P(two_girls and one_girl) / P(one_girl)

To estimate this probability, we need to make certain assumptions. Assuming that the probability of having a girl or a boy is equal (50% each), we can analyze the possible outcomes for a family with at least one girl:

GG (two_girls)

GB (one_girl)

BG (one_girl)

Out of these three possibilities, two of them satisfy the condition of having at least one girl (GG and GB). The event "one_girl" occurs in two out of three possible scenarios.

Therefore, P(one_girl) = 2/3.

Among these two scenarios, only one corresponds to "two_girls" (GG). Therefore, P(two_girls and one_girl) = 1/3.

Now, we can substitute these values into the conditional probability formula:

P(two_girls | one_girl) = (1/3) / (2/3) = 1/2.

It's important to note that this estimation assumes equal probability for a girl or a boy and assumes independence between the genders of different children within a family. In reality, the probability of having a girl or a boy may vary, and the gender of siblings can be dependent in certain cases (e.g., due to genetic factors). Therefore, this estimation serves as a simplified scenario based on the assumption of equal probabilities and independence.

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Caroline can fill 216 pages with six photos each.   To find out how many pages Caroline can fill with six photos each, we need to calculate the total number of pages in the album.

Each page in the album has six photos, so the total number of photos in the album is 6 x 6 = 36.

The total number of pages in the album is equal to the number of photos multiplied by the number of pages per photo. In this case, each photo occupies 6 pages.

So, the total number of pages in the album is:

36 x 6 = 216

Therefore, Caroline can fill 216 pages with six photos each.  

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Caroline can fill approximately 181 pages with six photos each.

To determine the number of pages Caroline can fill with six photos each, we divide the total number of photos she has by six.

[tex]\frac{1090 photos}{6 photos per page}= 181.67[/tex]

Since we cannot have a fraction of a page, we round down to the nearest whole number since we cannot have a partial page.

In summary, by dividing the total number of photos by the number of photos per album page, we find that Caroline can fill approximately 181 pages with six photos each.

Therefore, Caroline can fill approximately 181 pages with six photos each.

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The solution is: : 9(4 + 5), is the distributive property of the GCF of 36 and 45 to rewrite the sum.

Here, we have,

given that,

36 and 45

we have,

The GCF of 36 and 45 is

36: 2 * 2 * 3 * 3

45: 3 * 3 * 5

The GCF of 45 and 36 is 9

9(4 + 5) would be how the distributive property would be written.

Hence, The solution is: : 9(4 + 5), is the distributive property of the GCF of 36 and 45 to rewrite the sum.

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complete question:

What is the distributive property of the GCF of 36 and 45 to rewrite the sum

The enlargement transformation user to produce the new pentagon is called a dilation.

Dilation or Scaling involves increasing or decreasing the size of an object while maintaining its shape and proportions. In this case, the original pentagon is scaled up or down uniformly to create the new pentagon.

It involves making use of a certain scale factor to make increment or decrease an object. In this case a scale factor greater than 1 was used as the new pentagon was said to be enlarged.

Therefore, the enlargement transformation is a dilation.

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Answer:

The most important characteristic of a correlation coefficient is the absolute value.

The absolute value of a correlation coefficient represents the strength of the relationship between two variables, regardless of the direction of the relationship. A correlation coefficient can range from -1 to +1, where a value of -1 indicates a perfect negative correlation (i.e., as one variable increases, the other decreases), a value of +1 indicates a perfect positive correlation (i.e., as one variable increases, the other also increases), and a value of 0 indicates no correlation (i.e., there is no relationship between the variables).

The most important characteristic of a correlation coefficient is the absolute value.

The absolute value of the correlation coefficient represents the strength of the relationship between two variables, regardless of its direction. It indicates the degree to which the variables are associated with each other.

By focusing on the absolute value, we can assess the magnitude of the correlation without being influenced by whether it is positive or negative. For example, a correlation coefficient of -0.8 or +0.8 both indicate a strong relationship, while a correlation coefficient of 0 suggests no relationship.

The number of variables included is not a characteristic of the correlation coefficient itself, but rather a consideration in the analysis. One-tailed and two-tailed refer to the type of hypothesis being tested and are relevant in statistical testing. However, the absolute value of the correlation coefficient is crucial in determining the strength of the relationship between variables, making it the most important characteristic to assess in correlation analysis.

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The equation of the tangent line to the graph of y = arcsec(18x) at the point (2, 18) is y = (√3 / 6)x + (18 - √3 / 3).

To find the equation of the tangent line to the graph of the function y = arcsec(18x) at the point (2, 18), we need to determine the slope of the tangent line at that point.

The derivative of the arcsec(x) function is given by:

d/dx [arcsec(x)] = 1 / (|x| * sqrt(x^2 - 1))

Using this derivative, we can find the slope of the tangent line at x = 2:

m = 1 / (|2| * sqrt(2^2 - 1))

= 1 / (2 * sqrt(3))

= 1 / (2 * √3)

= √3 / 6

Now that we have the slope (m) and the point (2, 18), we can use the point-slope form of a linear equation to find the equation of the tangent line:

y - y₁ = m(x - x₁)

where (x₁, y₁) is the given point (2, 18) and m is the slope (√3 / 6).

Plugging in the values:

y - 18 = (√3 / 6)(x - 2)

Simplifying further:

y - 18 = (√3 / 6)x - (√3 / 6)(2)

y - 18 = (√3 / 6)x - √3 / 3

Finally, rearranging the equation to the standard form:

y = (√3 / 6)x + (18 - √3 / 3)

So, the equation of the tangent line to the graph of y = arcsec(18x) at the point (2, 18) is y = (√3 / 6)x + (18 - √3 / 3).

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k(9) = 2(9)^2 - 3√9

= 2(81) - 27

= 162 - 27

= 135

If k(x) = 2x^2 - 3√x then k(9) is equal to 2(9)^2 - 3√9 which simplifies to 2(81) - 27 = 162 - 27 = 135 1

Answer:

To find the distance between the two places where the rainbow appears to hit the ground, we need to find the roots of the quadratic r(x) = (x+15)(x-47)/52.

The roots of a quadratic equation are the values of x that make the quadratic equal to zero. So, we need to solve the equation:

r(x) = 0

Substituting the expression for r(x), we get:

(x+15)(x-47)/52 = 0

This equation is true if and only if one of the factors is zero. Therefore, we need to solve the equations:

x + 15 = 0 or x - 47 = 0

The solutions to these equations are:

x = -15 or x = 47

Since we are interested in the distance between the two places where the rainbow appears to hit the ground, we need to take the absolute value of the difference between these two solutions:

|47 - (-15)| = 62

Therefore, the distance between the two places where the rainbow appears to hit the ground is 62 miles.

Step-by-step explanation:

Answer: the 95% confidence interval for the population mean μ is (461, 559).

Step-by-step explanation:To estimate μ with 95% confidence, we need to use the formula for the confidence interval:

CI = x ± z*(s/√n)

where:

x = sample mean = 510

s = sample standard deviation = 125

n = sample size = 25

z = the z-score corresponding to the desired confidence level of 95%, which is 1.96 (obtained from the standard normal distribution table)

Plugging in the values, we get:

CI = 510 ± 1.96*(125/√25)

= 510 ± 49

Therefore, the 95% confidence interval for the population mean μ is (461, 559). We can say with 95% confidence that the true population mean falls within this interval.

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The word that describes the probability that she will land on orange is (c) unlikely

From the question, we have the following parameters that can be used in our computation:

Sections = 4

The orange sections in the spinner is

Orange = 1

So, we have

P(Orange) = 1/4

Evaluate

P(Orange) = 0.25

This value is less than 0.5

This means that the probability is unlikely

Hence, the probability that she will land on orange is (c) unlikely

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The resulting expression, f(x + h) = 3x^2 - 6x + 6h(x - 1) + (3h^2 + 1), represents the function f(x) shifted by h units to the right.

To find and simplify f(x + h) for the given function f(x) = 3x^2 - 6x + 1, we substitute (x + h) in place of x in the function and expand the expression.

First, let's substitute (x + h) for x in the function:

f(x + h) = 3(x + h)^2 - 6(x + h) + 1

To simplify this expression, we need to expand and simplify the terms.

Expanding the squared term (x + h)^2:

(x + h)^2 = (x + h)(x + h) = x(x + h) + h(x + h) = x^2 + hx + hx + h^2 = x^2 + 2hx + h^2

Now, let's substitute this expansion into the expression for f(x + h):

f(x + h) = 3(x^2 + 2hx + h^2) - 6(x + h) + 1

Expanding further by distributing the coefficients:

f(x + h) = 3x^2 + 6hx + 3h^2 - 6x - 6h + 1

Combining like terms, we have:

f(x + h) = (3x^2 - 6x) + (6hx - 6h) + (3h^2 + 1)

Simplifying each grouped term:

The first term, (3x^2 - 6x), remains the same.

The second term, (6hx - 6h), can be factored out 6h:

f(x + h) = 3x^2 - 6x + 6h(x - 1)

The third term, (3h^2 + 1), cannot be further simplified.

Therefore, the simplified expression for f(x + h) is:

f(x + h) = 3x^2 - 6x + 6h(x - 1) + (3h^2 + 1)

In this expression, we have expanded and simplified f(x + h) by substituting (x + h) for x in the given function f(x) = 3x^2 - 6x + 1. The resulting expression, f(x + h) = 3x^2 - 6x + 6h(x - 1) + (3h^2 + 1), represents the function f(x) shifted by h units to the right.

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The option giving the perimeter of the fountain, considering it's concept, is given as follows:

D. 48 feet.

The perimeter of a polygon is given by the sum of all the lengths of the outer edges of the figure, that is, we must find the length of all the edges of the polygon, and then add these lengths to obtain the perimeter.

We have a triangular fountain, hence the the lengths for this problem are given as follows:

(we used the formula for the distance between two points on the coordinate plane to obtain the side lengths on the triangle).

Hence the perimeter is given as follows:

15 + 15 + 18 = 48 feet.

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The all three statements are true about the political impact of environmental problems.

The political impact of environmental problems is complex and multifaceted. Governments often engage in debates and disagreements over how to solve environmental problems, including issues such as setting regulations, allocating resources, and implementing policies.

These disagreements can arise from differing perspectives on the severity of the problems, the best approaches to address them, and the distribution of responsibilities among countries.

2. These discussions may involve debates about the trade-offs between economic development and environmental protection, the role of industries and businesses in sustainability efforts, and the involvement of local communities in decision-making processes.

3. Overall, the political impact of environmental problems extends to various levels and involves different actors, including governments, international organizations, and individuals, leading to debates, disagreements, and discussions about the best ways to address these challenges.

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Since the p-value is less than the significance level (α = 0.05), we reject the null hypothesis.

Based on the given sample data, there is sufficient evidence to conclude that the proportion of city residents who prefer Edgar as the mayor is less than 0.55.

To perform a hypothesis test to determine whether the proportion of city residents who prefer Edgar as the mayor is less than 0.55, we can follow the five-step process. Let's define the steps and compute the required values:

Step 1: State the hypotheses

Null hypothesis (H0): p = 0.55 (proportion of residents who prefer Edgar is equal to 0.55)

Alternative hypothesis (Ha): p < 0.55 (proportion of residents who prefer Edgar is less than 0.55)

Step 2: Set the significance level

Let's assume a significance level (α) of 0.05 (5%).

Step 3: Compute the test statistic

We can use the formula for the test statistic, which follows the standard normal distribution under the null hypothesis:

z = ([tex]\hat{p}[/tex] - p) / √(p(1-p) / n)

Where:

[tex]\hat{p}[/tex] is the sample proportion (403/940 = 0.428)

p is the hypothesized proportion (0.55)

n is the sample size (940)

Plugging in the values, we have:

z = (0.428 - 0.55) / √(0.55(1-0.55) / 940)

Step 4: Determine the critical region and the p-value

Since we are testing whether the proportion is less than 0.55, we'll use a one-tailed test. With a significance level of 0.05, the critical value corresponding to the left tail is -1.645.

We can calculate the p-value by finding the area under the standard normal curve to the left of the test statistic (z).

Step 5: Make a decision and interpret the results

If the test statistic falls within the critical region or if the p-value is less than the significance level (α), we reject the null hypothesis in favor of the alternative hypothesis. Otherwise, we fail to reject the null hypothesis.

Now, let's calculate the test statistic (z) and the p-value.

z = (0.428 - 0.55) / √(0.55(1-0.55) / 940) ≈ -7.262

The p-value corresponding to this test statistic is extremely small (close to zero). Since the p-value is less than the significance level (α = 0.05), we reject the null hypothesis.

Interpretation:

Based on the given sample data, there is sufficient evidence to conclude that the proportion of city residents who prefer Edgar as the mayor is less than 0.55.

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The equations of the planes that are parallel to the plane x 2y−2z = 1 and two units away from it is x + 2y - 2z = 3.

The coefficients of x, y, and z in the equation x+2y-2z=1 give us the normal vector of the plane, which is <1, 2, -2>.

We can choose any point on the given plane as a point on the parallel plane. For simplicity, we can use the point (1,0,0), which is on the given plane.

The point-normal form of the equation of a plane is given by: a(x-x0) + b(y-y0) + c(z-z0) = 0, where (x0, y0, z0) is a point on the plane, and <a, b, c> is the normal vector of plane.

Since we want a plane that is two units away from given plane, we can modify the constant term in the equation to get: a(x-x0) + b(y-y0) + c(z-z0) = d, where d is the distance between two planes, which is 2 units in this case.

The equation of the parallel plane is:

Normal vector of the given plane: <1, 2, -2>

Point on the given plane: (1,0,0)

Distance between the two planes: 2 units

Using the point-normal form:

1(x-1) + 2(y-0) - 2(z-0) = 2

Simplifying:

x + 2y - 2z = 3

Therefore, the equation of a plane that is parallel to the plane x+2y-2z=1 and two units away from it is x + 2y - 2z = 3.

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The general solutions of the given ODE is,

(a) y(t) = c1 exp(-2t)cos(t) + c2 exp(-2t)sin(t).

(b) y(t) = exp(-3t)(c1 + c2t + c3t).

(c) y(t) = c1 + c2t + c3t + c4exp(-2t).

To find the general solution to the ODE

(a) y" + 4y' + 5y = 0,

The characteristic equation is,

⇒ r² + 4r + 5 = 0,

which has roots r = -2 ± i.

The general solution is then,

⇒ y(t) = c1 exp(-2t)cos(t) + c2 exp(-2t)sin(t).

Where c1 and c2 are arbitrary constants.

(b) For the ODE,

y" + 3y' + 3y' + y = 0,

The characteristic equation,

⇒ r² + 3r + 3 = 0,

which has roots r = (-3 ± i√3)/2.

Using the hint (m + 1),

we can write the general solution as

⇒ y(t) = exp(-3t)(c1 + c2t + c3t).

Where c1 , c2 and c3 are arbitrary constants.

(c) For the ODE y"' + 2y" + y = 0,

The characteristic equation,

⇒ r² + 2r + r = 0,

which has roots r = 0 (with multiplicity 2) and r = -2.

Then we can write the general solution as,

⇒ y(t) = c1 + c2t + c3t + c4exp(-2t).

Where c1 , c2, c3 and c4 are arbitrary constants.

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Answer: Ok, so the tree would start with the ten marbles going to 1 of the reds, 1 of the black , and get till you used up all the black, then do 2/10 and 8/10 to 12 and repeat the 1 part step, and then do 4/12 and 8/12 and add it all up and place the probability out of 22.

Step-by-step explanation:

The distance traveled by the little boy is 150.72 feet.

Distance is the measure of the length between two points.

To calculate the total distance traveled by the little boy, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the distance traveled by the little boy is 150.72 feet.

Learn more about distance here: brainly.com/question/17273444

Answer:

Step-by-step explanation:

x = width

x+8 = length

x(x+8)=273

x2 +8x-273=0

(x+21)(x-13)=0

x=-21  x=13

width can not be -21

width = 13 cm

length =21 cm

Answer:

The Length and Width are 21 cm, 13cm.

Step-by-step explanation:

so,

273 cm²   = ( x + 8 ) cm * ( X ) cm

Expanding the equation :

273 = x² + 8x cm => x² + 8x -273 =0

Now we use the Quadratic formula :

x = (-8 ± √(64 + 1092)) / 2    => x = (-8 ± √(1156)) / 2   => x = (-8 ± 34) / 2

Now we have two possibles,

Dimensions cannot be positive so x = 13, x+8 = 21.

Therefore the length, and width are 21 cm and 13 cm respectively.

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