What is the volume of the region bounded by y=4x-x^2 and y=x^2 if rotated about the line x=4?

The next number in this sequence of cube numbers is 125

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

1,8,27,64......

Each term of teh sequence is the cube of its position

So, we have:

Next term = 5^3

Evaluate

Next term = 125

Hence, the next term is 125

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a) z ⊂ r - True

b) z ⊆ r - True

c) z ⊆ r - True

d) n ⊂ r - True

e) z ⊂ n - False

What is the subset?

A subset is a set of elements that are contained within another set. The elements of the subset are referred to as its members or elements, and the set that contains the subset is called the superset.

In mathematical notation, if A is a subset of B, it is written as A ⊆ B. If A is not a subset of B, it is written as A ⊈ B.

Given the definitions:

z = {...-3,-2,-1,0,1,2,3,...} - The set of all integers.

n = {1,2,3,4, ...} - The set of all positive integers.

r = set of real numbers - The set of all real numbers (positive, negative, and zero).

(a) z ⊂ r - True. The set of integers is a subset of the set of real numbers.

(b) z ⊆ r - True. The set of integers is a subset of the set of real numbers.

(c) z ⊆ r - True. This is the same statement as in (b).

(d) n ⊂ r - True. The set of positive integers is a proper subset of the set of real numbers.

(e) z ⊂ n - False. The set of integers is not a subset of the set of positive integers.

Hence,

a) z ⊂ r - True

b) z ⊆ r - True

c) z ⊆ r - True

d) n ⊂ r - True

e) z ⊂ n - False

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The function that represent the cost of the rent per hour is f(h) = 200h + 100

The domain is {0, 2, 3, 4} and the range for the function is  {0$, 500$, 700$, 900$}

An equation is the equality between two algebraic expressions, which have at least one unknown or variable.

To solve this problem, we have to state the equation using the information of the problem:

Information about the problem:

Let be (h) as the hours that the theater can be rented

The function will be as follow:

f(h) = 200h + 100 where:

Domain = {0, 2, 3, 4}

Range = {0$, 500$, 700$, 900$}

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The collection of short line segments with a slope that should satisfy the specified differential equation at each point is referred to as the direction field.

The stated differential equation is :

y' = 2y – 3 => dy/dx = 2y – 3

Find equilibrium solution, at dy/dx = 0.

2y – 3  = 0

y = 3/2

At y = 3/2, the intervals are: ]3/2, ∞[

Put any value of y in this differential equation,

2y – 3  at y = 2

2*2 – 3 = 1 > 0

Thus, slope becomes positive for y > 3/2 .

As, the relation between t and the obtained solution y are increases.

Thus, y < 3/2 : intervals are: ]- ∞, 3/2[

Put any value of y in this differential equation,

2y – 3  at y = 1

2*1 – 3 = -1 < 0

Thus, slope becomes negative for y < 3/2 .

As, the relation between t and the obtained solution y in decreases.

Therefore,  the direction field for the stated differential equation is obtained.

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the correct question is-

Draw a direction field for the given differential equation. Based on the direction field, determine the behavior of y as t → 0. If this behavior depends on the initial value of y at t = 0, describe the dependency.

y' = 2y – 3

Answer: 266.666667%

Step-by-step explanation:

I got that after i worked it out

Answer:

Step-by-step explanation:

The number of students in a class of 360 students who would be expected to choose pizza or a sandwich as their favorite type of lunch will be 280. Then the correct option is C.

In parameter estimation, the expected value is an application of the weighted sum. Informally, the expected value is the simple average of a considerable number of individually determined outcomes of a randomly picked variable.

The expected value is given below.

E(x) = np

Where n is the number of samples and p is the probability.

The probability who choose pizza or a sandwich as their favorite type of lunch will be given as,

p = (30 + 40) / (30 + 20 + 40)

p = 70 / 90

p = 7 / 9

Then the expected value is given as,

E(x) = 360 x (7/9)

E(x) = 280

The number of students in a class of 360 students who would be expected to choose pizza or a sandwich as their favorite type of lunch will be 280. Then the correct option is C.

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The Nitrogen is commonly considered as a Trigonal Pyramidal molecule .

In a Trigonal Pyramidal arrangement, there are three atoms attached to the central atom at the corners of a triangular plane, with the fourth atom attached above or below the plane.

This molecular geometry is commonly observed in compounds where the central atom has five valence electrons, such as nitrogen in its most common oxidation state of +3.

The Nitrogen in this oxidation state forms compounds like nitrogen triiodide (NI₃) and nitrogen trioxide (NO₃), which have a trigonal pyramidal geometry.

Therefore , Yes , Nitrogen is trigonal pyramidal .

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Answer:

a2 + 4b2

Step-by-step explanation:

The perimeter of the rhombus be 60 cm.

It is a rhombus or square if the diagonals of a quadrilateral are perpendicular bisectors of one another.

Lines that cut through the middle of each side of a triangle's perpendicular bisector are perpendicular to the provided side.

check to see if the diagonals of a rhombus cut the angles; if they do, the object is a rhombus. The diagonals can also be checked to verify if they are perpendicular bisectors of one another, or if they cross at a right angle.

One way to describe a perpendicular bisector is as a line that divides another line segment into two equal portions by crossing it perpendicularly.

[tex]$$\begin{aligned}& \text { Area of rhombus }=\frac{1}{2} \times D_1 \times D_2 \\& 216=\frac{1}{2} \times 24 \times D_2\end{aligned}$$[/tex]

(1) [tex]$\mathrm{D}_2=\frac{216}{12}=18$[/tex]

(2) Diagonals perpendicular bisector of each other

[tex]$$\begin{aligned}& \mathrm{OA}=\mathrm{DC}=12 \& \mathrm{DB}=\mathrm{OD}=9 \\& \mathrm{AB}^2=12^2+9^2=144+81=225 \\& \mathrm{AB}=15 \mathrm{~cm}\end{aligned}$$[/tex]

(3) perimeter [tex]$=4 \times 15=60 \mathrm{~cm}$[/tex].

The complete question is:

The area of a rhombus is 216 sq. cm. If its one diagonal is 24 cm; find :

(i) length of its other diagonal,

(ii) length of its side,

(iii) perimeter of the rhombus.

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The derivatives of h(x) is h'(x) = √2 csc ([tex]x^4[/tex] + 1).

We have,

To find h'(x), we need to take the derivative of h(x) with respect to x using the Fundamental Theorem of Calculus.

Given that h(x) = ∫sin(2x - π/4) csc([tex]x^4[/tex] + 1) dt, we can rewrite it as:

h(x) = ∫[a, x] sin(2t - π/4) csc([tex]t^4[/tex] + 1) dt

Now, we'll apply the Fundamental Theorem of Calculus:

h'(x) = d/dx [∫[a, x] sin(2t - π/4) csc([tex]t^4[/tex] + 1) dt]

Using the Leibniz integral rule, we have:

h'(x) = sin(2x - π/4) csc([tex]x^4[/tex] + 1) - sin(2a - π/4) csc([tex]a^4[/tex] + 1)

However, we need to evaluate this derivative at x = π/4 and x = -π/4, so we substitute these values in:

h'(π/4) = sin(2(π/4) - π/4) csc((π/4)^4 + 1) - sin(2a - π/4) csc([tex]a^4[/tex] + 1)

h'(-π/4) = sin(2(-π/4) - π/4) csc((-π/4)^4 + 1) - sin(2a - π/4) csc(a^4 + 1)

Since the derivative is evaluated at the endpoints, the term with sin(2a - π/4) cancels out in both expressions.

Therefore, the derivative simplifies to:

h'(x) = sin(π/4) csc([tex]x^4[/tex] + 1) - sin(-π/4) csc([tex]x^4[/tex] + 1)

simplifying further:

h'(x) = (√2/2) csc([tex]x^4[/tex] + 1) + (√2/2) csc([tex]x^4[/tex] + 1)

Combining like terms, we have:

h'(x) = (√2/2) (csc([tex]x^4[/tex] + 1) + csc([tex]x^4[/tex] + 1))

h'(x) = (√2/2) (2csc([tex]x^4[/tex] + 1))

Finally, simplifying:

h'(x) = √2 csc([tex]x^4[/tex] + 1)

Therefore,

The derivatives of h(x) is h'(x) = √2 csc([tex]x^4[/tex] + 1).

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The complete question:

If h(x) = ∫sin 2x − π/4 csc (x^4 - 1) dt  for −π/4 ≤ x ≤ π/4, then h′(x)?

Total atomic events or count = 2598960

Now, According to the question:

A joint probability distribution represents a probability distribution for two or more random variables. Instead of events being labelled A and B, the condition is to use X and Y as given below. f(x, y) = P(X = x, Y = y) The main purpose of this is to look for a relationship between two variables.

In a deck of cards there are 52 cards having 4 different suits each having 13 different ranks.

In a joint probability distribution of 5 cards hand from a 52 deck of cards is calculated as shown below:

Total atomic events or count = ⁵²C₅

= 52!/5! * (52-5)!

= 52!/5! * 47!

= (48 x 49 x 50 x 51 x 52)/5!

= 311875200/120

= 2598960

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The dot product of two vectors u and v can be represented using index notation as u_i v_i.

A mathematical language called index notation is used to describe the components of a vector or tensor. It consists of an element's position in the vector or tensor and a symbol, typically a Latin or Greek letter.

A mathematical language called index notation is used to describe the components of a vector or tensor. The element's position in the vector or tensor is indicated by a symbol (often a Latin or Greek letter) with an integer subscript. How to utilise index notation is as follows:

Vectors can be represented by a single letter with a subscript, such as v i, where I stands for the element's position in the vector.

Tensors are multidimensional arrays that can be described using an index notation for each element. For instance, T i,j can be used to represent the element in a matrix's ith row and jth column.

Executing operations: Index notation can be used to express operations like matrix multiplication and the vector dot product. For instance, u_i v_i can be used to denote the dot product of the two vectors u and v.

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A) Base = 10 units, Height = 7 units, and Area = 35 square units.

B) Base = 11 units, Height = 6 units, and Area = 33 square units.

C) Base = 10 units, Height = 4 units, and Area = 20 square units.

D) Base = 4 units, Height = 11 units, and Area = 22 square units.

What is the area of the triangle?

The area of a triangle is a measure of the space contained within its three sides. It can be calculated by multiplying the base of the triangle by its height and dividing the result by two. In mathematics, the formula for the area of a triangle is:

A = (1/2)bh

where b is the base and h is the height of the triangle.

For figure A)

The base of the triangle would be = 10 units

The height of the triangle is = 7 units.

Area of the triangle = 1/2 * 10 * 7

                                = 35 square units.

For figure B)

The base of the triangle would be = 11 units

The height of the triangle is = 6 units.

Area of the triangle = 1/2 * 11 * 6

                                = 33 square units.

For figure C)

The base of the triangle would be = 10 units

The height of the triangle is = 4 units.

Area of the triangle = 1/2 * 10 * 4

                                = 20 square units.

For figure D)

The base of the triangle would be = 4 units

The height of the triangle is = 11 units.

Area of the triangle = 1/2 * 4 * 11

                                = 22 square units.

Hence,

A) Base = 10 units, Height = 7 units, and Area = 35 square units.

B) Base = 11 units, Height = 6 units, and Area = 33 square units.

C) Base = 10 units, Height = 4 units, and Area = 20 square units.

D) Base = 4 units, Height = 11 units, and Area = 22 square units.

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The given expression (5x² + 25x + 20) / 7x is equivalent to the expression [(x² + 2x + 1) / (x - 1)] × [(5x² + 15x - 20) / (7x² + 7x)].

What is an expression?

Mathematical expressions consist of at least two numbers or variables, at least one arithmetic operation, and a statement. It's possible to multiply, divide, add, or subtract with this mathematical operation.

The given expression is - (5x² + 25x + 20) / 7x

The other two expression are -

(x² + 2x + 1) / (7x² + 7x)

Let the unknown expression be x.

So according to the question -

(x² + 2x + 1) / (7x² + 7x) × x = (5x² + 25x + 20) / 7x

Cross multiply the polynomials -

x = [(5x² + 25x + 20) / 7x] × [(7x² + 7x) / (x² + 2x + 1)]

Here, it can be seen that (x² + 2x + 1) is the expansion of (x + 1)² and (7x² + 7x) = 7x (x + 1).

Substitute these values into the equation -

x = [(5x² + 25x + 20) / 7x] × [7x (x + 1) / (x + 1)²]

Simplify the equation -

x = (5x² + 25x + 20) / (x + 1)

Here, it can be seen that (5x² + 25x + 20) is the expansion of 5 (x + 4) (x + 1).

Substitute these value into the equation -

x = 5 (x + 4) (x + 1) / (x + 1)

Simplify the equation -

x = 5 (x + 4)

Multiply the numerator and denominator by (x - 1) -

x = 5 (x + 4) (x - 1) / (x - 1)

x = 5x + 20 (x - 1) / (x - 1)

x = 5x² - 5x + 20x - 20 / (x - 1)

x = 5x² + 15x - 20 / (x - 1)

So the unknown expression is 5x² + 15x - 20 / (x - 1).

Verify by substituting -

[(x² + 2x + 1) / (x - 1)] × [(5x² + 15x - 20) / (7x² + 7x)]

Here, it can be seen that (x² + 2x + 1) is the expansion of (x + 1)² and (7x² + 7x) = 7x (x + 1).

Substitute these values into the equation -

[(x + 1)² / (x - 1)] × [5 (x + 4) (x - 1) / 7x (x + 1)]

5 (x + 4) (x + 1) / 7x

Simplify the equation -

5x + 20 (x + 1) / 7x

5x² + 5x + 20x + 20 / 7x

5x² + 25x + 20 / 7x

This expression is equivalent to the original expression.

Therefore, the unknown expressions are (5x² + 15x - 20) and (x - 1).

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An expression for the total number of coins Nancy and Bill have is

5x - 2 coins.

A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.

Given, Nancy has x coins. Bill has 2 coins fewer than four times the number of coins Nancy has.

The numerical form of the statement will be for the total number of coins they both have is,

= x + (4x - 2).

= 5x - 2 coins.

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-17 is  value(s) of h is b in the plane .

A straightforward explanation of a vector ?

A quantity or phenomena with both magnitude and direction being independent of one another is called a vector. Additionally, the phrase designates how such a quantity is represented mathematically or geometrically.

                                Velocity, momentum, force, electromagnetic fields, and weight are some natural examples of vectors.

For the plane spanned by a1 and a2, y is a linear combination of a1 and a2 if it is in the plane.

y = a a1 + b a2 where a and b are constants.

[4,1,h] = a[1,4,-2] + b[-2,-3,7]

[4,1,h] = [a - 2b,4a -3b,-2a+ 7b] by the rules of vector addition and multiplication. Vectors are equal if their components are equal

4 = a - 2b

1 = 4a - 3b

h = -2a + 7b

We can solve for a and b from the first two equations to find h:

a = -2

b = -3

h = -17

We see that -2[1,4,-2] - 3[-2,-3,7] = [4,1,-17].

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The complete question is -

For what value(s) of h is b in the plane spanned by a1 and a2?

a1 = [1, 4, -2] a2 = [-2, -3, 7] b = [4, 1, h]

1. SI 2. CI 3. SI 4. SI 5. CI 6. SI 7. CI 8. SI 9. CI 10. CI

When interest is calculated, it is done so using both the principal and the interest that has accumulated over the previous period.

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The wavelength for radio waves with frequency 3 × 10^9 is given as follows:

3 x 10^-1 m.

To find the numeric value of a function or of an expression, we replace each instance of the variable in the function or in the expression by the value at which we want to find the numeric value.

The function for this problem is defined as follows:

y = (3 x 10^8)/x.

The wavelength for radio waves with frequency x = 3 × 10^9 is given as follows:

y = (3 x 10^8)/(3 x 10^9).

y = 3 x 10^(-1).

(keep the base and subtract the exponents).

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The area of the equilateral triangle is A = 12*√3 square units.

We know that for a equilateral triangle of side length S is given by the formula below:

A = (√3/4)*S²

Here we know that the sidelength is 4√3​, then we can replace that on the expression above to get:

A =  (√3/4)*(4√3)²

A = (√3/4)*16*3

A = √3*(4*3)

A = 12*√3

That is the area of the equilateral triangle.

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The magnitude of the force on the test charge will be the magnitude of the net force acting on the test charge due to its interaction with the other 2 charges.

The magnitude of the force on a test charge is the measurement of the strength of the interaction between the test charge and other charges.

In this scenario, a test charge of 1 µc is placed halfway between two charges of 3.2 µc and 8.2 µc separated by 10 cm. To find the magnitude of the force on the test charge, we can use Coulomb's law.

The magnitude of the force is given by the formula

=> F = k * q1 * q2 / r²,

where k is the Coulomb constant, q1 and q2 are the magnitudes of the charges, and r is the distance between the charges.

The magnitude of the force between the test charge and the 3.2 µc charge is given by the formula

=> F = k * 1 * 3.2 / (0.05²).

The magnitude of the force between the test charge and the 8.2 µc charge is given by the formula

=> F = k * 1 * 8.2 / (0.05²).

The magnitude of the force on the test charge is the sum of these two forces, which can be calculated using the formula

=> F = k * q1 * q2 / r².

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The total number of square meters of glass that were used to make the​ window are:

250 square meters

A kite is a 2-dimensional geometric shape with two pairs of equal-length sides that meet at right angles. It has two diagonals, one longer and one shorter. To find the area of a kite, we use the formula:

In this case, the dimensions given are 20 and 25, which we can assume are the lengths of the two diagonals of the kite.

Let's call the shorter diagonal d1 (which is 20) and the longer diagonal d2 (which is 25).

Using the formula, we can find the area of the kite:

So, the total area of glass used to make the window is 250 square meters.

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i. The formula that correctly relates Y and T is T=Y+1 and today's closing price is 33.

Given information is that:

Carlie's stock rose by 1 point in trading today.

Let Y represent yesterday's stock price at closing

Let T represent today's stock price at closing

=> formula that correctly relates Y and T is:

T=Y+1

ii) If yesterday's closing price was 32 what was today's closing price?

today's closing price = yesterday's closing price + 1

<=> T=Y+1  

<=> T=32+1=33.

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(a) H'(6) is the rate of change of the height of the tree at time t=6, which is the slope of the line tangent to the graph of H(t) at that point. Using the data in the table, we can estimate H'(6) to be 3.2 meters per year. This means that, at t=6, the height of the tree is increasing at a rate of 3.2 meters per year.

(b) H'(t) is the rate of change of the height of the tree at time t. Since H'(t) is twice-differentiable, it is continuous and can take any value between its minimum and maximum values. Therefore, there must be at least one time t, for 2 < t < 10, such that H'(t) = 2.

(c) To approximate the average height of the tree over the time interval 2 ≤ t ≤ 10, we can use a trapezoidal sum with the four subintervals indicated by the data in the table. We have:

Therefore, the average height of the tree over the time interval 2 ≤ t ≤ 10 can be approximated by the trapezoidal sum:

(10 + 14 + 18 + 22) × (2 + 2 + 3 + 3) / 8 = 196/8 = 24.5 meters.

(d) According to the given model, G(x) = 100x/(1+x), if the tree is 50 meters tall, then the diameter of the base of the tree is x = 2, and the rate of change of the height of the tree with respect to time, in meters per year, is given by G'(2) = 100(1 - 2)/(1 + 2)² = -100/9. Therefore, the rate of change of the height of the tree with respect to time, in meters per year, at the time when the tree is 50 meters tall is -100/9 meters per year.

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The sum of the infinite geometric series is 64/7.

Geometric progression is a sequence of numbers such that the ratio of two consecutive numbers is the same for whole sequence.

This ratio is common ratio.

Geometric series is the sum of the numbers in the geometric progression.

Sum of an infinite geometric series can be found by the formula,

S = a / (1 - r)

where a is the first term and r is the common ratio.

Given series is 16 - 12 + 9 - 27/4 + ...

a = 16

r = -12 / 16 = -3/4

S = 16 / (1 - -3/4)

  = 16 / (1 + 3/4)

  = 16 / (7/4)

  = 64/7

Hence the required sum is 64/7.

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16 ounces in 2 cups.

how many ounces is 2 cups?

1 cup = 8 ounces

so, 2 cup = 2 x 8

                =16 ounces

A number of distinct units of mass, weight, or volume are derived from the uncia, an ancient Roman unit of measurement, including the ounce, which is almost unmodified.

The avoirdupois ounce, or precisely 28.349523125 g, is 1/16 of an avoirdupois pound and is used in both the United States and the United Kingdom.

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One ounce, abbreviated as "oz," is 480 grains, or 31.103 grams, and it is a measure of weight that is one-twelfth of a Troy or Apothecaries' pound.2 Cups = 16 Ounces

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So, if the curve has a horizontal tangent, the values are = k, where k is an integer, and where the curve has a vertical tangent, the values are = (2k + 1)/2, where k is an integer.

A cardiod is a curve defined by the equation r = 1 + cos(θ), where r is the radial coordinate and θ is the angular coordinate. The equation can be re-written as r = 1 + cos(θ) = 1 + 2cos^2(θ/2) for 0 <= θ <= 2π. A curve has a horizontal tangent when its derivative with respect to θ is equal to zero, which means the slope of the tangent line is 0. The derivative of r with respect to θ is dr/dθ = -sin(θ). Thus, the curve has a horizontal tangent when -sin(θ) = 0, or θ = kπ, where k is an integer.

Here,

A curve has a vertical tangent when its second derivative with respect to θ is equal to zero, which means the rate of change of the slope is 0. The second derivative of r with respect to θ is d^2r/dθ^2 = -cos(θ). Thus, the curve has a vertical tangent when -cos(θ) = 0, or θ = (2k + 1)π/2, where k is an integer.

So, the values of θ where the curve has a horizontal tangent are θ = kπ, where k is an integer, and the values of θ where the curve has a vertical tangent are θ = (2k + 1)π/2, where k is an integer.

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In the regular hexagon, there will be only one line axis of symmetry.

Axial symmetrical is similarity around an axis; an item is internally symmetric if it retains its appearance when turned around an axis.

The polygon is a 2D geometry that has a finite number of sides. And all the sides of the polygon are straight lines connected to each other side by side.

The regular hexagon is shown.

In the regular hexagon, the upper triangle and the lower triangle are shaded. Then there will be only one line axis of symmetry.

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