what is electric power quality and how passive filters are applied to this problem?

In deciding whether to insert company-designed danger symbols to denote the potential for electrocution, the writer's primary concern should be liability law.

This will be the correct option.

Why liability law is a writer's primary concern? Liability law or legal accountability is important for companies, and individuals may be held accountable for their activities.

These rules exist to shield consumers from businesses that are not up to par.

An individual's freedom to speak their thoughts is limited to prevent harm to others.

The symbol used for electrocution danger should be placed in the manual by the writer.

Electricians or people working in electrical fields require the warning symbol to be included in the manual to avoid accidents and keep them safe.

When writing a manual, the writer should be concerned about liability law, which ensures that the company is not held accountable if an accident occurs as a result of insufficient warning or instruction in the manual.

The writer's job in writing a manual is to provide instruction to the readers, which is why they must ensure that everything is done legally and safely so that they do not fall under liability law.

Therefore, the writer's primary concern should be liability law when considering whether to insert company-designed danger symbols to denote the potential for electrocution.

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The approximate probability that at least 26 loans will result in default, out of 100 loans with a historical default rate of 20 percent, is 0.0846.

To solve this problem, we can use the binomial distribution formula, which is P(X ≥ k) = 1 - P(X < k), where X is a binomial random variable, k is the minimum number of successes we want to achieve (in this case, 26 defaults), and P is the probability of success on each trial (in this case, 0.2, or 20 percent).

Using this formula, we can find the probability of having less than 26 defaults as follows:

P(X < 26) = Σ(k=0 to 25) (100 choose k) * 0.2^k * (0.8)^(100-k) = 0.9154

(Note: the symbol "choose" represents the binomial coefficient, which can be calculated using the formula n choose k = n!/(k!(n-k)!)

Therefore, the probability of having at least 26 defaults is:

P(X ≥ 26) = 1 - P(X < 26) = 1 - 0.9154 = 0.0846

Therefore, the approximate probability that at least 26 loans will result in default is 0.0846.

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The rate at which the tree will grow in just 1 year would be = 3ft/year.

The quantity of tree that grows in 1/12 year = 1/4 ft

The quantity of tree that will grow in 1 year = X ft.

That is;

1/12 years = 1/4ft

1 year = X

Make X the subject of formula;

X= 1/4÷1/12

X = 1/4×12/1

X = 3 ft

Therefore, the rate at which the tree will grow in just 1 year would be = 3 ft/year.

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Answer:

1. -3

2. -5

3. -9

4. +16

5. -7

6. -3

7. -11

8. +11

9. -5

10. -5

Step-by-step explanation:

Answer: The largest possible volume of the box is 2321.08 cubic centimeters, and this occurs when the side length of the square base is approximately 19.15 cm and the height of the box is approximately 6.84 cm.

Step-by-step explanation:

Let's denote the side length of the square base as "x" and the height of the box as "h".Since the box has an open top, we only need to consider the 5 faces of the box. The area of the base is x^2, and the areas of the other four faces are each equal to xh (since the box has equal height on all sides).Thus, the total surface area of the box is:x^2 + 4xhWe are given that 1100 square centimeters of material is available to make the box, so we can set up an equation based on this information:x^2 + 4xh = 1100We want to maximize the volume of the box, which is given by:V = x^2h.

To solve for the maximum volume, we need to express h in terms of x using the equation for the surface area:4xh = 1100 - x^2

h = (1100 - x^2)/(4x)

Substituting this expression for h into the equation for the volume, we get:V = x^2 * (1100 - x^2)/(4x). Simplifying this expression, we get:V = (1/4)x(1100x - x^3)

To get the maximum volume, we need to take the derivative of this expression with respect to x, set it equal to zero, and solve for x:dV/dx = 275 - (3/4)x^2 = 0

x^2 = 366.67

x = 19.15 cm (rounded to two decimal places)

To check that this gives us a maximum, we can take the second derivative:

d^2V/dx^2 = -3x/2 < 0 (for x > 0)

Since the second derivative is negative, this tells us that we have found a maximum.Now we can find the corresponding value of h:

h = (1100 - x^2)/(4x)

h = (1100 - (366.67))/(4(19.15))

h = 6.84 cm (rounded to two decimal places)

Finally, we can calculate the maximum volume:

V = x^2h

V = (19.15)^2 * 6.84

V = 2321.08 cubic centimeters (rounded to two decimal places).

Therefore, the largest possible volume of the box is 2321.08 cubic centimeters, and this occurs when the side length of the square base is approximately 19.15 cm and the height of the box is approximately 6.84 cm.

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the P-value (0.0000316) is less than the significance level of 0.01, we reject the null hypothesis. This means that the teacher can conclude that the students have indeed mastered the material in their statistics unit, based on the results of the pretest and posttest.

To determine the P-value and draw a conclusion, the teacher can use a one-tailed paired t-test since the same group of students took both the pretest and posttest. The null hypothesis is that the mean difference between pretest and posttest scores (μd) is equal to zero, and the alternative hypothesis is that μd is greater than zero.

Using a calculator or statistical software, the teacher can calculate the paired t-statistic for the data:

t = (x(bar)d - μd) / (s / √n)

Where x(bar)d is the sample mean of the difference scores, μd is the hypothesized population mean difference (0), s is the sample standard deviation of the difference scores, and n is the sample size (20).

Plugging in the values from the table, we get:

x(bar)d = 5.75

s = 4.091

n = 20

t = (5.75 - 0) / (4.091 / √20) = 4.67

Using a t-distribution table with 19 degrees of freedom (df = n-1), the P-value for this one-tailed test is 0.0000316.

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The length of the arc AB is approximately 66.5 cm. We can use the formula given below to find the length of the arc:arc length = (central angle / 360°) x (2πr), where r is the radius of the circle. Here, we are given the radius of the circle as 5 7.9 cm and the central angle as 360°.

Thus, the formula becomes: arc length = (360° / 360°) x (2 x 3.14 x 5 7.9) arc length = 2 x 3.14 x 57.9 arc length = 364.452 cm ≈ 364.5 cm However, the answer needs to be rounded to the nearest tenth. Since the tenths place is occupied by 4, we need to round up the hundredths place, which is 5. Thus, the final answer is: arc length AB = 66.5 cm (rounded to the nearest tenth).Therefore, the length of arc AB is approximately 66.5 cm.

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The length of arc AB is 5.5 cm when rounded to the nearest tenth.

To find the length of arc AB, the radius and the angle at the center are required since they are the main parameters for calculating the length of arc AB.

Since the radius has not been given, it can be computed as shown below.

r = 2πr / 360°

= 7 x 3.14 / 360°

= 0.061 cm/degree

The angle at the center of AB is 180°/2 = 90°.

Therefore, the length of arc AB is given by

L = rθ

= 0.061 cm/degree x 90°

= 5.49 cm

Hence, the length of arc AB is 5.5 cm when rounded to the nearest tenth.

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Gerry's decision will depend on a variety of factors, including the recommendations of his friends, the course syllabus, and his own personal preferences. It is important for him to carefully consider all of these factors before making his final decision.

Gerry is registering for classes next semester and he is deciding between two teachers, Dr. Anderson and Dr. Bean. In order to make an informed decision, Gerry speaks to 17 friends that previously took the course from Dr. Anderson and 17 friends that took it from Dr. Bean. Out of the 17 friends that took Dr. Anderson's course, 8 highly recommend him. Out of the 17 friends that took Dr. Bean's course, 11 highly recommend him.
Based on the recommendation of his friends, Gerry may be inclined to choose Dr. Bean, as he received more highly positive recommendations than Dr. Anderson. However, there are other factors that Gerry may want to consider before making his final decision. For example, Gerry may want to look at the syllabus for each course and compare them to see which one would be a better fit for his academic goals. He may also want to look at the times that each course is offered to see which one fits best with his schedule. Additionally, he may want to read reviews of both professors on websites such as Rate My Professor to see what other students have said about their teaching styles.
Ultimately, Gerry's decision will depend on a variety of factors, including the recommendations of his friends, the course syllabus, and his own personal preferences. It is important for him to carefully consider all of these factors before making his final decision.

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Rounded to the nearest whole number, the container is approximately 52% full.

To find the percentage that the shipping container is full, we need to compare the volume of the shipped goods to the total volume of the container.

Given dimensions:

Length = 35 ft

Width = 8 ft

Height = 9 ft 9 in

We need to convert the height to feet by dividing the inches by 12:

Height = 9 ft + (9/12) ft = 9.75 ft

Total volume of the container:

Volume = Length × Width × Height

Volume = 35 ft × 8 ft × 9.75 ft

Volume = 2730 ft³

Volume of the shipped goods:

Given as 1420 ft³

To find the percentage filled, we divide the volume of the shipped goods by the total volume of the container and multiply by 100:

Percentage filled = (Volume of shipped goods / Total volume of container) × 100

Percentage filled = (1420 ft³ / 2730 ft³) × 100

Percentage filled ≈ 52.0%

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She can estimate that 50 seventh-graders will be boarding the bus to go to school.

The unitary technique entails finding the value by multiplying the single value and then solving the problem using the initial value of a single unit.

By using the unitary technique, we can determine the value of many units from the value of a single unit as well as the value of multiple units from the value of a single unit. We typically utilise this technique for math calculations.

10 out of the 32 children in the first-period class that we are given ride the bus to school. There are 160 students in seventh grade.

Therefore, we have;

160/32=5

10 x 5 =50

Thus, the answer is 50

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Answer:

To solve the equation 6x + 3 = 9 for x, the operations that must be performed on both sides of the equation in order to isolate the variable x are subtraction and then division.

What is a linear equation?

A linear equation in one variable has the standard form Px + Q = 0. In this equation, x is a variable, P is a coefficient, and Q is constant.

How to solve this problem?

Given that 6x + 3 = 9.

First, we have to separate variable and constants. So, we have to subtract 3 from both sides.

6x + 3 - 3 = 9 - 3

i.e. 6x = 6

Now, to solve this equation, we use division.

x = 6/6 = 1

i.e. x = 1

Therefore, to solve the equation 6x + 3 = 9 for x, the operations that must be performed on both sides of the equation in order to isolate the variable x are subtraction and then division.

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Step-by-step explanation:

To solve the equation 6x + 3 = -9, you can follow the following sequence:

6x + 3 - 3 = -9 - 3

This simplifies to 6x = -12.

This simplifies to x = -2.

Therefore, the solution to the equation 6x + 3 = -9 is x = -2.

The value of the line integral is 256/5.

We can parameterize the curve C as x = 4cos(t) and y = 4sin(t) for t in [0, pi/2]. Then, ds = sqrt((dx/dt)^2 + (dy/dt)^2) dt = 4 dt.

Substituting in these values, we have:

integral C xy^4 ds = integral from 0 to pi/2 of (4cos(t))(4sin(t))^4 (4) dt

= 256 integral from 0 to pi/2 of cos(t) sin^4(t) dt

We can use integration by substitution with u = sin(t) and du = cos(t) dt to get:

256 integral from 0 to 1 of u^4 du = 256 * (1/5) u^5 evaluated from 0 to 1

= 256/5

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The conclusion that can be drawn from the box plots is that the attendance on Friday has a greater interquartile range than attendance on Saturday, but both data sets have the same median.

What is interquartile range?

Interquartile range (IQR) is a measure of variability, based on splitting a data set into quartiles. It is equal to the difference between the third quartile and the first quartile. An IQR can be used as a measure of how far the spread of the data goes.A box plot, also known as a box-and-whisker plot, is a type of graph that displays the distribution of a group of data. Each box plot represents a data set's quartiles, median, minimum, and maximum values. This is a visual representation of numerical data that can be used to identify patterns and outliers.

What is Median?

The median is a statistic that represents the middle value of a data set when it is sorted in order. When the data set has an odd number of observations, the median is the middle value. When the data set has an even number of observations, the median is the average of the two middle values.

In other words, the median is the value that splits a data set in half.

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Answer:

---------------------

According to the box plot we have:

The IQR is the difference of Q3 and Q1:

To find a second-degree polynomial satisfying the given conditions, we can start with a general form of a second-degree polynomial:

p(x) = ax^2 + bx + c

Given that p(1) = 2, p'(1) = 2, and p''(1) = 4, we can substitute these values into the polynomial and its derivatives to form a system of equations.

p(1) = 2:

a(1)^2 + b(1) + c = 2

a + b + c = 2

p'(1) = 2:

2a(1) + b = 2

2a + b = 2

p''(1) = 4:

2a = 4

a = 2

From equation 3, we find that a = 2. Substituting this value into equation 2, we can solve for b:

2(2) + b = 2

4 + b = 2

b = -2

Finally, substituting the values of a and b into equation 1, we can solve for c:

2 + (-2) + c = 2

c = 2

Therefore, the second-degree polynomial satisfying the given conditions is:

p(x) = 2x^2 - 2x + 2

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Answer: A number line is a line in which numbers are marked at an equal distance from each other, either horizontally or vertically. The numbers on the right side of the line are positive numbers. Positive numbers are numbers that are greater than zero. Positive numbers include both whole numbers and decimals greater than zero.

A number line is an effective tool for visualizing and ordering positive numbers. On a number line, positive numbers are represented to the right of zero, and they increase in value as you move farther to the right. For instance, the number 2 is to the right of the number 1, and the number 10 is farther to the right than the number 2. Similarly, 3.5 is a larger number than 2.5. Hence, the answer is: Draw a number line and mark all positive numbers on it.

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The sum of A² and B² (45.53) is not equal to C² (37.21). Therefore, the blocks cannot form a right-angled triangle, and the tower will not be stable.

To determine whether the tower will be stable, we need to check if the lengths of the blocks satisfy the conditions for forming a right-angled triangle. According to the Pythagorean theorem, in a right-angled triangle, the square of the length of the hypotenuse (the longest side) is equal to the sum of the squares of the other two sides.

Let's label the blocks:

Blue block: Side A = 4.3 inches

Orange block: Side B = 5.2 inches

Red block: Side C = 6.1 inches

To form a stable tower, we need to check if the sum of the squares of the two shorter sides is equal to the square of the longest side.

Calculating the squares:

A² = 4.3² ≈ 18.49

B² = 5.2² ≈ 27.04

C² = 6.1² ≈ 37.21

Now, we need to find the longest side. Let's compare the squares:

C² (37.21) is the largest.

According to the Pythagorean theorem, for a right-angled triangle, the sum of the squares of the two shorter sides must be equal to the square of the longest side. In this case, the sum of the squares of A² and B² should be equal to C².

A² + B² ≈ 18.49 + 27.04 ≈ 45.53

However, the sum of A² and B² (45.53) is not equal to C² (37.21). Therefore, the blocks cannot form a right-angled triangle, and the tower will not be stable.

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The explicit formula for the sequence an = 1-en-1 nten is an = 1 - e^(n-1) * (n-1) * e.

Alternatively, if we consider the sequence an = 1-en-1 2+en, the explicit formula would be an = 1 - e^(n-1) * (n-1) * e + e^(n-1) * (n+1) * e. Lastly, if we consider the sequence an = 1-en 2+en, the explicit formula would be an = 1 - e^n * n * e + e^(n-1) * (n+2) * e.

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The graph of the function g(x) is the graph (a) i.e. the top left

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

f(x) = x²

See attachment for the possible graphs of the functions

The function g(x) is given as

g(x) = (x + 1)²

This means that

The function f(x) is shifted up by 1 unit to get the function

Using the above as a guide, we have the following:

The graph of the function g(x) is the graph (a) i.e. the top left

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i) Degrees of freedom are there for the critical value will be 15.

ii) The critical value will be 2.131.

iii) The margin of error will be 1.004

iv) The 95% confidence interval that can be constructed will be between 0.078 and 2.698.

i) The degrees of freedom for the critical value is n-2 = 17-2 = 15.

ii) The critical value can be found using a t-distribution table with 15 degrees of freedom and a confidence level of 95%. The critical value is 2.131.

iii) The margin of error can be calculated using the formula:

ME = t_(alpha/2) * SE_b1

where t_(alpha/2) is the critical value, and SE_b1 is the standard error of the slope coefficient.

ME = [tex]2.131 \times 2.080 / \sqrt{(16.106)}[/tex] = 1.004

iv) The 95% confidence interval can be constructed using the formula:

CI = b1 +/- t_(alpha/2) [tex]\times[/tex]SE_b1

CI = [tex]1.388 +/- 2.131 \times 2.080 / \sqrt{(16.106)}[/tex] = (0.078, 2.698)

Therefore, we can be 95% confident that the true slope coefficient beta_1 falls between 0.078 and 2.698.

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The integral evaluates to[tex]∫∫(9x + 12y) daᵣ = ∫∫(9/3)(u + 4v - 4u[/tex]) dudv over the region r.

To evaluate the given integral using the given transformation, we can express the integral in terms of the new variables u and v. The transformation equations are:

x = (1/3)(u + v)

y = (1/3)(v - 2u)

We need to calculate the integral (9x + 12y) da over the parallelogram region r.

First, we need to find the limits of integration in terms of u and v. The vertices of the parallelogram are (-1, 2), (1, -2), (4, 1), and (2, 5). Converting these points to u and v coordinates using the transformation equations, we get:

(-1, 2) -> (1/3, 2/3)

(1, -2) -> (1, -2)

(4, 1) -> (5/3, 1)

(2, 5) -> (1, 3)

The limits of integration for u are 1/3 to 5/3, and for v, it's 2/3 to 3.

Now, we can substitute the transformation equations into the integrand:

9x + 12y = 9[(1/3)(u + v)] + 12[(1/3)(v - 2u)]

= 3u + 3v + 4v - 8u

= -5u + 7v

Finally, we can rewrite the integral in terms of u and v

∫∫r (9x + 12y) da = ∫(1/3 to 5/3) ∫(2/3 to 3) (-5u + 7v) dv du

To evaluate this double integral, we integrate first with respect to v from 2/3 to 3, and then with respect to u from 1/3 to 5/3. The resulting integral will provide the answer to the problem.

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Answer:

answer C!!

Step-by-step explanation:

Given  : sphere with radius 15.To find : Which expression gives the volume.Solution : We have given that radius of sphere = 15 units.Volume of sphere =  .Plugging the value of radius Volume of sphere =  .

The series is absolutely convergent. The series Σ(1/n^9) converges (as a p-series with p = 9 > 1), by the limit comparison test also converges absolutely.

We can use the limit comparison test to determine the convergence of the series:

Since arctan(n) ≤ π/2 for all n ≥ 1, we have |(-1)^n arctan(n) / n^9| ≤ π/2n^9 for all n ≥ 1.

Since the series Σ(1/n^9) converges (as a p-series with p = 9 > 1), by the limit comparison test, the given series also converges absolutely.

Therefore, the series is absolutely convergent.

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Thus, 1) The second derivative, with respect to x, of the wave function: d2dx2ψn(x) = -Cn^2(pi/L)^2sin(n*pi*x/L).

2) U(x)ψn(x) = 0

3) Eψn(x) = -Cn^2(pi/L)^2Esin(n*pi*x/L)

1) The second derivative, with respect to x, of the wave function ψn(x) in the interval 0≤x≤L can be found by applying the second derivative operator to the wave function:

d2dx2ψn(x) = -Cn^2(pi/L)^2sin(n*pi*x/L)

where n is the quantum number and C is the normalization constant.

2) U(x)ψn(x) is the product of the potential energy function U(x) and the wave function ψn(x) in the interval 0≤x≤L. If the potential energy function is zero in this interval, then U(x)ψn(x) is also zero.

Therefore, U(x)ψn(x) = 0.

3) Eψn(x) is the product of the energy E and the wave function ψn(x) in the interval 0≤x≤L. Substituting the wave function expression from part 1 into this product, we get:

Eψn(x) = -Cn^2(pi/L)^2Esin(n*pi*x/L)
where E is the energy of the particle.

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Thus, the curl of the vector field F = (x2 − y2) i + 4xy j is (2x − 2y) k.

The curl of a vector field is a measure of how much the field rotates around a point. To compute the curl of the given vector field F = (x2 − y2) i + 4xy j, we need to calculate the cross product of the gradient operator (del) and F.

Using the formula for the curl, we have:
curl F = (∂Fz/∂y − ∂Fy/∂z) i + (∂Fx/∂z − ∂Fz/∂x) j + (∂Fy/∂x − ∂Fx/∂y) k

Where Fx, Fy, and Fz are the components of F in the x, y, and z directions, respectively.

In this case, F has no z-component, so we can simplify the formula to:
curl F = (∂Fy/∂x − ∂Fx/∂y) k

Now, let's calculate the partial derivatives:
∂Fx/∂y = 0 - (-2y) = 2y
∂Fy/∂x = 2x - 0 = 2x

Therefore, the curl of F is:
curl F = (2x − 2y) k

This means that the field rotates around the z-axis with a magnitude proportional to the difference between x and y. The curl is zero when x equals y, which corresponds to a point of no rotation.

In summary, the curl of the vector field F = (x2 − y2) i + 4xy j is (2x − 2y) k.

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a. t = 2.58, N = 21, two-tailed test at α = 0.05:

To determine whether to reject or fail to reject the null hypothesis, we need to compare the calculated t-value to the critical t-value from a t-distribution with N - 1 degrees of freedom at the given alpha level.

For a two-tailed test at α = 0.05 with 21 degrees of freedom, the critical t-value is approximately ±2.080.

Since the calculated t-value of 2.58 is greater than the critical value of 2.080, we would reject the null hypothesis.

b. t = 1.99, N = 49, one-tailed test at α = 0.01:

For a one-tailed test, the critical value is based on the tail of the distribution where the alternative hypothesis is located.

At α = 0.01 and 49 degrees of freedom, the critical value for a one-tailed test is approximately 2.404.

Since the calculated t-value of 1.99 is less than the critical value of 2.404, we would fail to reject the null hypothesis.

c. μ = 47.82, 99% CI = (48.71, 49.28):

The confidence interval (CI) gives us a range of values that the population mean is likely to be within. In this case, we have a 99% CI, which means that there is a 99% chance that the true population mean falls between 48.71 and 49.28.

Since the null hypothesis typically states that the population mean equals a certain value, in this case, 47.82, we can conclude that we would reject the null hypothesis.

d. μ = 0, 95% CI = (-0.15, 0.20):

The confidence interval in this case gives us a range of values that the population mean is likely to be within. Since the null hypothesis typically states that the population mean equals a certain value, in this case, 0, we can conclude that we would fail to reject the null hypothesis, since the interval includes 0.

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The equation of the parabola that satisfies the given conditions is y^2 = 20(x + 5)

The given information tells us that the conic is a parabola with focus at (-10, 0) and directrix x = 0.
Since the directrix is a vertical line, we know that the parabola is opening to the left or right. In this case, since the focus is to the left of the directrix, the parabola opens to the left.
The standard form of a parabola that opens to the left with focus (h, k) and directrix x = a is:
(y - k)^2 = 4p(x - h)
where p is the distance from the vertex (h, k) to the focus, and also from the vertex to the directrix. In this case, the vertex is halfway between the focus and directrix, so it is at (-5, 0).
Since the directrix is x = 0, which is a vertical line passing through the origin, the distance from the vertex to the directrix is simply 5.
Therefore, p = 5, and the equation of the parabola is:
(y - 0)^2 = 4(5)(x + 5)
y^2 = 20(x + 5)
This is the equation of the parabola that satisfies the given conditions.

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The vertex, focus, and directrix of the parabola x^2 = 2y are Vertex: (0, 0), Focus: (0, 1/2), Directrix: y = -1/2

The given equation is x^2 = 2y, which is a parabola with vertex at the origin.

The general form of a parabola is y^2 = 4ax, where a is the distance from the vertex to the focus and to the directrix.

Comparing the given equation x^2 = 2y with the general form, we get 4a = 2, which gives us a = 1/2.

Hence, the focus is at (0, a) = (0, 1/2), and the directrix is the horizontal line y = -a = -1/2.

Therefore, the vertex, focus, and directrix of the parabola x^2 = 2y are:

Vertex: (0, 0)

Focus: (0, 1/2)

Directrix: y = -1/2

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Answer: 1/12

Step-by-step explanation: the LCD of these two fractions is 12. 5/6 is equal to 10/12, and 3/4 is equal to 9/12. from here, you can find the difference in the numerators over the common denominator and that will be your answer. 10/12-9/12=1/12

Answer:

Draw diagonal AC.

Set your calculator to degree mode.

Use the Law of Cosines to find AC.

AC = √(6^2 + 8^2 -2(6)(8)(cos 95°))

= 10.41

From this, use the Pythagorean Theorem to find DC.

DC = √(10.41^2 - 5^2) = 9.13

So the perimeter of ABCD is

5 + 6 + 8 + 9.13 = 28.13 cm