Please help! Find the area of the shaded regions. give your answer a completely simplified exact value of the terms of pi (no approximations)

The volume of the sand which is equal to the volume of the cone will be 376.8 cubic feet.

Let h be the height of the cone and A be the base area of the cone.

Then the volume of the cone will be given as,

Volume = (1/3) × A × h

At a construction site, sand is poured from a truck into a conical pile. The pile has a diameter of 12 feet and is 10 feet tall.

The base area of the cone is given as,

A = π × (d/2)²

A = 3.14 × (12 / 2)²

A = 3.14 × 36

A = 113.04 square feet

Then the volume of the cone is given as,

V = 1/3 × 113.04 × 10

V = 376.8 cubic feet

The volume of the sand which is equal to the volume of the cone will be 376.8 cubic feet.

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The degree of a vertex represents the number of other actors or actresses that an actor or actress has worked with in movies.

The neighborhood of a vertex represents the set of actors or actresses that an actor or actress has worked with in movies.

Isolated vertices represent actors or actresses who have not worked with any other actors or actresses in any movie, while pendant vertices represent actors or actresses who have only appeared in one movie with another actor or actress in the Hollywood graph.

The Hollywood graph is an undirected graph because the relationship between actors and actresses is mutual.

Each vertex in this graph represents an actor or actress, and the degree of a vertex represents the number of other actors or actresses that they have worked with in movies. In other words, the degree of a vertex represents the number of edges that are connected to that vertex.

The neighborhood of a vertex in a graph refers to the set of all vertices that are adjacent to it. In the context of the Hollywood graph, the neighborhood of a vertex represents the set of actors or actresses that a particular actor or actress has worked with in movies.

An isolated vertex in a graph is a vertex that has no edges connected to it. In the context of the Hollywood graph, an isolated vertex represents an actor or actress who has not worked with any other actors or actresses in any movie.

A pendant vertex in a graph is a vertex that has only one edge connected to it. In the context of the Hollywood graph, a pendant vertex represents an actor or actress who has only appeared in one movie with another actor or actress in the Hollywood graph.

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Explanation:

The normal curve, aka bell curve, has mirror symmetry with the mean at the very center. Half of the data is below the mean, while the other half is above the mean.

About 68% of the data will lie below the mean in a normally distributed data set. This is known as the Empirical Rule, which states that if a data set is approximately normally distributed, then approximately 68% of the data falls within one standard deviation of the mean, 95% falls within two standard deviations, and 99.7% falls within three standard deviations.

Answer:

Step-by-step explanation:

V≈62.83ft³

I hope it helped you out.

The formula to describe the variation is F = 1.6d².

Option C is the correct answer.

An equation is made up of one or two variables with a constant connected by an equal sign.

Example:

2x + 4 = 9 is an equation.

We have,

F is directly proportional to the square of d.

This can be written as,

F ∝ d²

F = kd² ____(1)

Now,

F = 40 when d = 5.

40 = k x 5²

k = 40/25

k = 8/5 _____(2)

Now,

From (1) and (2).

F = (8/5)d²

F = 1.6d²

Thus,

The formula to describe the variation is F = 1.6d².

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Answer: b1 = [tex]\frac{2A}{h} -b2[/tex]

Step-by-step explanation:

Algebra my friend...Algebra

So:

A = 0.5h(b1+b2)

A/(0.5h) =b1+b2

.: A/(0.5h) - b2 = b1

In other words:

b1 = [tex]\frac{A}{0.5h} -b2[/tex]

The 0.5 in the denominator can be rearranged to get the final answer:

b1 = [tex]\frac{2A}{h} -b2[/tex]

Total hours handled by x judges in the year ≤ 12120x where x is the number of judges needed to handle the caseload for the year.

To formulate an LP for this problem, we can define the decision variables and the objective function and constraints.

Decision Variables:

Let x be the number of judges needed by the city to handle the caseload for the year.

Objective Function:

We want to minimize the number of judges needed, so our objective function is:

minimize x

Constraints:

Each judge can handle up to 120 hours of caseload per month, so the total number of hours that can be handled by x judges in a month is 120x. The total number of hours needed to handle the caseload for the year is given in the table. Therefore, we have the following constraints:

For January: 120x ≥ 100

For February: 120x ≥ 120

For March: 120x ≥ 90

For April: 120x ≥ 80

For May: 120x ≥ 110

For June: 120x ≥ 130

For July: 120x ≥ 140

For August: 120x ≥ 110

For September: 120x ≥ 100

For October: 120x ≥ 90

For November: 120x ≥ 80

For December: 120x ≥ 120

These constraints ensure that the total number of hours handled by the judges in each month is at least as much as the number of hours needed to handle the caseload in that month.

We also need to ensure that all cases are handled by the end of December. This can be expressed as follows:

Total hours handled by x judges in the year ≤ 12120x

This constraint ensures that the total number of hours handled by the judges in the year is less than or equal to the maximum possible number of hours that can be handled by x judges in a year.

Therefore, the LP can be formulated as follows:

minimize x

subject to:

120x ≥ 100

120x ≥ 120

120x ≥ 90

120x ≥ 80

120x ≥ 110

120x ≥ 130

120x ≥ 140

120x ≥ 110

120x ≥ 100

120x ≥ 90

120x ≥ 80

120x ≥ 120

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The irrational number for this problem are given as follows:

pi/2.

Rational numbers are numbers that can be represented by fractions, such as numbers that have no decimal parts, or numbers in which the decimal parts are terminating or repeating.

Irrational numbers are numbers that cannot be represented by fractions, being non-terminating and non-repeating decimals, such as non-exact square roots.

For this problem, we have that the number pi/2 is irrational, as pi is a non-terminating decimal, and the division of an irrational by a rational results in an irrational.

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Answer:

-16x² + 10x - 14.

Step-by-step explanation:

To find the composition of two functions, (f g)(x), we first evaluate g(x) and then substitute the result into f(x).

So, let's first evaluate g(x):

g(x) = 8x² - 5x + 7

Next, substitute g(x) into f(x):

(f g)(x) = f(g(x)) = f(8x² - 5x + 7) = -2(8x² - 5x + 7) = -16x² + 10x - 14

Therefore, (f g)(x) = -16x² + 10x - 14.

The upper quartile score on the final exam is 83.

Upper quartile, represented as Q₃, also known as third quartile is the value in a data set such that 75% of the points in the data set are below this value, after arranging in an ascending order.

Given data set is the scores for the final exam in an 8th grade math class.

58, 72, 74, 92, 84, 40, 74, 81, 76, 83.

First arrange the data in an ascending order.

40, 58, 72, 74, 74, 76, 81, 83, 84, 92.

Median is the middle element.

Median = (74 + 76) / 2 = 75

Upper quartile is the median of the second half.

Consider the second half.

76, 81, 83, 84, 92.

Median = 83

Third quartile = 83

Hence 83 is the upper quartile score on the final exam.

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The set of parametric equations are

[tex]x=\sqrt{t}[/tex]

[tex]y=\sqrt{3+t[/tex]

A parametric equation uses a parameter, which is an independent variable (often represented by the notation t), and dependent variables, which are expressed as continuous functions of the parameter and are independent of other variables.

Using one or more independent variables known as parameters, a parametric equation defines a set of quantities as functions.

Given the equation:

[tex]x= \sqrt[]{y^{2}-3 }[/tex]

Let's find a set of parametric equation for the given equation given the parameter:

[tex]x = \sqrt{t}[/tex]

From the parameter:

[tex]x = \sqrt{t}[/tex]

Now, substitute [tex]\sqrt{t}[/tex] for x in the given equation:

[tex]x=\sqrt{y^2-3} \\\\\sqrt{t} = \sqrt{y^2 - 3} \\\\t=y^2-3\\\\y^2=3+t\\\\y=\sqrt{3+t}[/tex]

Therefore, the set of parametric equations is:

• [tex]x=\sqrt{t}[/tex]

• [tex]y=\sqrt{3+t}[/tex]

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The volume of a right circular cylinder with a diameter of 10 meters and a height of 16 meters is 400π m³.

Volume is the amount of space occupied by an object in three dimensions. It is a measure of how much space is contained within a solid shape, such as a cube, sphere, or cylinder. The unit of volume can vary based on the system of measurement being used, but common units include cubic meters, cubic centimeters, liters, and gallons. Volume is calculated by multiplying the area of the base of the object by its height or depth, depending on the shape of the object.

The volume of a right circular cylinder is given by the formula V = πr²h, where V is the volume of the cylinder, r is the radius of the circular base, and h is the height of the cylinder.

In words, the volume of a right circular cylinder is equal to the area of the circular base (πr²) multiplied by the height (h). This formula holds true regardless of the dimensions of the cylinder, as long as it has a circular base and straight sides that are perpendicular to the base.

The volume of a right circular cylinder is given by the formula V = πr²h, where r is the radius of the circular base and h is the height of the cylinder.

Since the diameter of the circular base is 10 meters, the radius is half of that, or 5 meters. The height of the cylinder is 16 meters.

Substituting these values into the formula, we get:

V = π(5)²(16) = 400π

Therefore, the volume of the cylinder is 400π cubic meters.

So the answer is 400π m³.

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The proportion i/k = 12 can be used to find the length of sides i and k if the perimeter is 12 units. To solve for the length of each side, the equation i + k = 12 is used, and then the two sides are divided by each other to get the proportion i/k = 12.

The proportion i/k = 12 can be used to find the length of sides i and k of a shape if the perimeter is 12 units. In order to solve for the length of each side, the equation i + k = 12 is used to determine the sum of the sides. The two sides are then divided by each other, resulting in the proportion i/k = 12. This proportion can then be used to find the length of sides i and k. For example, if the length of side i is 8, then the length of side k is 4. This can be determined by dividing 8 by 4, which results in the proportion i/k = 2. If the perimeter is 12 units, then the equation i + k = 12 can be used to determine that the length of side i is 6 and the length of side k is 6, since 6 + 6 = 12. The proportion i/k = 12 can then be used to confirm that the length of side i is 6 and the length of side k is 6.

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The complete question is

Which proportion can be used to find the length of sides ik if the perimeter is 12 units?

Using the empirical rule, we can conclude that approximately 68% of American women have shoe sizes between 6.54 and 9.58.

Using the empirical rule, we can say that approximately 68% of the data falls within one standard deviation of the mean, approximately 95% of the data falls within two standard deviations of the mean, and approximately 99.7% of the data falls within three standard deviations of the mean.

To find the percentage of American women who have shoe sizes between 6.54 and 9.58, we first need to standardize these values by subtracting the mean and dividing by the standard deviation:

z1 = (6.54 - 8.06) / 1.52 = -1.00

z2 = (9.58 - 8.06) / 1.52 = 1.00

Now, we can use the empirical rule to find the percentage of women with shoe sizes between z = -1.00 and z = 1.00. Since this interval corresponds to one standard deviation from the mean, we know that approximately 68% of the data falls within this range.

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The probability that between 19 and 53 (including 19 and 53) seeds grow into healthy plants is 0.9941.

The probability distribution of x, where x is the number of seeds that grow into healthy plants when 75 seeds are planted, is a binomial distribution with parameters n = 75 and p = 0.69. The probability of x = 44 is calculated by using the formula for the probability mass function of the binomial distribution:

[tex]P(x=44) = (75 choose 44) * (0.69)^44 * (1-0.69)^(75-44) = 0.1578[/tex]

The probability of x >= 44 is calculated by using the formula for the cumulative probability function of the binomial distribution:

[tex]P(x > = 44) = 1 - P(x < = 43) = 1 - (75 choose 43) * (0.69)^43 * (1-0.69)^(75-43) = 0.7406[/tex]

The probability of x > 44 is calculated by subtracting the probability of x = 44 from the probability of x >= 44:

P(x > 44) = P(x >= 44) - P(x = 44) = 0.7406 - 0.1578 = 0.5828

The probability of 19 <= x <= 53 is calculated by subtracting the probability of x <= 18 from the probability of x <= 53:

[tex]P(19 < =x < =53) = P(x < =53) - P(x < =18) = 0.9994 - 0.0053 = 0.9941[/tex]

Therefore, the probability that exactly 44 seeds grow into healthy plants is 0.1578, the probability that at least 44 seeds grow into healthy plants is 0.7406, the probability that more than 44 seeds grow into healthy plants is 0.5828, and the probability that between 19 and 53 (including 19 and 53) seeds grow into healthy plants is 0.9941.

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Answer:

Step-by-step explanation:

5. Diagram 2 shows a cylinder and a cuboid. Diagram 2 shows a cylinder and a cuboid. Fold / Use = 271 30 cm Find the value of x and give the correct answer to the multiple of two places. It is given that the volume of the cylinder and the cuboid are the same. Find the value of x and give your answer correct to two decimal places. Answer / Answer: 7 cm 8 cm [3 markah/ 3 marks] For Examine Us

Answer:

5

Step-by-step explanation:

The rule of the sides of a triangle is that the sum of the lengths of any two sides of a triangle is always greater than the length of the third side. This rule is also known as the triangle inequality theorem.

Answer: 96

The sum of the interior angles of a regular heptagon is equal to (n-2)180 degrees, where n is the number of sides of the polygon.

Since a regular heptagon has 7 sides, the sum of its interior angles is (7-2)180 = 720 degrees.

Therefore, the measure of each interior angle is 720 degrees / 7 = 104 degrees.

If the measure of an interior angle is (w + 8) degrees, then w + 8 = 104.

Solving for w, we get w = 96.

Answer: z is in the triangle  all triangles -180 degrees so 108+40 = 148

180-148=32
Answer 32 degrees

Step-by-step explanation:

Answer: 20 for acellus

Answer:

26 meters,

hope this helps!

Answer: 38.8°

Step-by-step explanation:

See the attached diagram:

From it we can tell that the tunnel forms a right triangle, with the length of a leg and the hypotenuse given. We can use the sine function to easily answer this, (letting θ be the angle we need to find)

sinθ = 52/83

.: θ = arcsin(52/83)

(Note: arcsin is the inverse of the sine function)

.: θ ≅ 38.8°

The standard form of the equation of the quadratic function is y = -1/8x^2 + 1/4x - 41/8

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

(h, k) = (1, -5)

(x, y) = (5, -7)

A quadratic function is represented as

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

So, we have

y = a(x - 1)^2 - 5

Given that

(x, y) = (5, -7)

We have

-7 = a(5 - 1)^2 - 5

This gives

16a = -2

So, we have

a = -1/8

Recall that

y = a(x - 1)^2 - 5

So, we have

y = -1/8(x - 1)^2 - 5

Expand

y = -1/8(x^2 - 2x + 1) - 5

This gives

y = -1/8x^2 + 1/4x - 41/8

So, the required equation is y = -1/8x^2 + 1/4x - 41/8

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Answer:

k is 2.5.

Step-by-step explanation:

To find the value of k, we can use the information given about points A and B to find the value of the parameters a and b. Since we know that the curve passes through A (1, 10) and B (4, 80), we can substitute these points into the equation y = ab^x to find the values of a and b.

Starting with point A:

10 = a * b^1

Next, using point B:

80 = a * b^4

We can now use these two equations to find the value of b:

10 = a * b^1

80 = a * b^4

Dividing the second equation by the first equation:

8 = b^3

Taking the cube root of both sides:

b = 2

We can now use either of the two equations to find the value of a:

10 = a * b^1

a = 10/2 = 5

Now that we have found the values of a and b, we can substitute the point C (-1, k) into the equation y = ab^x to find the value of k:

k = 5 * 2^(-1) = 5 * (1/2) = 2.5

So the value of k is 2.5.

The equation in standard form is x - 9y = -45.

The equation of a line in standard form is Ax + By = C, where x and y are variables and A, B and C are integers.

Given equation is y = 1/9 x + 5.

Here 1/9 is not an integer.

So multiplying the equation throughout by 9, we get,

9y = x + (5 × 9)

9y = x + 45

Subtracting both sides by x,

9y - x = 45

-x + 9y = 45

Multiplying throughout by -1,

x - 9y = -45, which is in standard form.

Hence the equation is x - 9y = -45 in standard form.

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The equation to represent the situation where the oldest child is 7 years older than the youngest child, using x for the age of the youngest child and y for the age of the oldest child, is y = x + 7.

If we let x represent the age of the youngest child in a family, then we can say that the oldest child is 7 years older than the youngest child. We can represent the age of the oldest child using the expression "x + 7", because if we add 7 to the age of the youngest child, we get the age of the oldest child.

Therefore, we can write an equation to represent this situation by equating the age of the oldest child to the age of the youngest child plus 7. This can be written as:

x + 7 = Oldest child's age

where x is the age of the youngest child, and "Oldest child's age" represents the age of the oldest child in the family. This equation tells us that if we know the age of the youngest child, we can find the age of the oldest child by adding 7 to it.

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The value of x is given as follows:

x = 130º.

To obtain the value of x, we must consider the exterior angle theorem, which states that each interior angle is supplementary with it's interior angle, meaning that the sum of their measures is of 180º.

As the interior angle is of 50º, the measure of the exterior angle x is given as follows:

x = 180 - 50

x = 130º.

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The ratio of the coordinate point on the line is  2 to 7.

The ratio of the coordinate point on the line is calculated as follows;

Let the coordinate points = (xp, yp)

Let the ratio of the line = a:b

xp = x₁  +  (a/(a+b) (x₂ - x₁)

yp = y₁  + (a/a+b) (y₂ - y₁)

-3 = -7 + ( a/a+b)(11 - - 7)

-3 = -7 + (a/a+b)(18)

-3(a + b)  = -7(a+b) + 18a

7(a + b ) - 3(a+b) = 18a

7a + 7b - 3a - 3b = 18a

4b = 14a

4/14 = a/b

2/7 = a/b

2 : 7 = a : b

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