1. Write the explicit formula for the sequence below

Answer:

a) (-2,0) is the x-intercept of the line.

b) (0,4) is the y-intercept of the line.

c) "2" is the slope of the line.

d) 2x + 4 = y (Equation of the Line)

Step-by-step explanation:

All linear equations have a general form: mx+n.

When we figure out two points on the line, we can use them in this general formula and find out the equation for the line.

We can use x and y intercepts of the line for that, they are also asked to find.

The x-intercept of the line is (-2,0) because this is where the line crosses the x axis, this point is named as x-intercept.

Except the axis, y-intercept has no more difference than x-intercept. So, the y-intercept of a line is where the line crosses the y axis.

We can see that the line crosses y axis at (0,4).

Now, we know two specific points on the line. This means that we can find the slope and write the equation for this line.

We can find the slope using the formula below:

y1 - y0 / x1 - x0 = Slope

This would give us the slope for the line, no matter which point you take as (x1, y1). The order is not important.

If you use the given points on the formula above, you would get "2" as the slope of the line.

In the general form of a linear equation, the coefficient of "x" is equal to the slope of the line. This means that "m" is equal to "2". (y = 2x + n)

Finally, you can use one of the known points to find out the real equation for the line.

Let's use (0,4):

2x + n = y (Use 0 for "x" and 4 for "y" variable.)

We can conclude that "n" is equal to 4.

So, the equation of this line is equal to "2x + 4 = y".

the area of the shaded regions of all circles in terms of pi is a = 253.42 in², a = 215.98 yd², a = 25.13 ft², a = 201.06 yd² and a = 64.14 ft² respectively.

What is the shaded region?

The area of the shaded region is the difference between the area of the entire polygon and the area of the unshaded part inside the polygon. The area of the shaded part can occur in two ways in polygons. The shaded region can be located at the center of a polygon or the sides of the polygon.

The formula for calculating the area of a shaded segment of a circle is:

a = π ∗ r² ∗ angle/360

The area of the sector depends on the radius of the circle r and the measure of the angle t.

The area of a sector for angle t is  A = t/360 ⋅ π ⋅ r²

We have given the figures with their radius and shaded region angles,

In the first figure:

radius r =  11 in and  shaded region angle = 260°

so, a = π ∗ r² ∗ angle/360

a = π ∗ (11)² ∗ 260/360

a =  π ∗ 121 ∗ 2/3

a = 253.42 in²

In the second figure:

radius r =  15 yd and  shaded region angle = 110°

so, a = π ∗ r² ∗ 110/360

a = π ∗ (15)² ∗ 110/360

a =  π ∗ 225 ∗ 11/36

a = 215.98 yd²

In the third figure:

radius r =  6 ft  and  shaded region angle = 80°

so, a = π ∗ r² ∗ 80/360

a = π ∗ (6)² ∗ 80/360

a =  π ∗ 36 ∗ 2/9

a = 25.13 ft²

In the fourth figure:

radius r =  16 yd  and  shaded region angle = 90°

so, a = π ∗ r² ∗ 90/360

a = π ∗ (16)² ∗ 90/360

a =  π ∗ 256 ∗ 1/4

a = 201.06 yd²

In the fifth figure:

radius r =  7 ft  and  shaded region angle = 150°

so, a = π ∗ r² ∗ 150/360

a = π ∗ (7)² ∗ 150/360

a =  π ∗ 49 ∗ 5/12

a = 64.14 ft²

Hence, the area of the shaded regions of all circles in terms of pi is a = 253.42 in², a = 215.98 yd², a = 25.13 ft², a = 201.06 yd² and a = 64.14 ft² respectively.

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The equation y = 3x describes the relationship between x and y in the table.

What is the slope intercept?

The definition of a linear equation is an algebraic equation in which each term has an exponent of one and the graphing of the equation results in a straight line. An example of a linear equation is y=mx + b.

A relationship that when graphed produces a straight line. Equation. A mathematical sentence that sets 2 expressions equal to each other.

This equation shows that for every increase of 1 in the value of x, y increases by 3.

This is consistent with the values in the table, where for each increment of 1 in x, y also increases by 3.

Hence, The equation y = 3x describes the relationship between x and y in the table.

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The value of a=17 cm and b=6 cm as FGHJ is a kite.

Kite has property their adjacent sides are equal. The top two sides of the kite are equal and the bottom two sides of the kite are equal.

Any quadrilateral with two sets of congruent successive sides is referred to as a kite (in contrast to a parallelogram where the opposite sides are congruent). Connecting points G and J, draw a section. Triangle GHJ and triangle GFJ are congruent. The information that GH = GF and FJ = HJ will be used.

FG=GH because of ∠F=∠H.

30=2a-4

2a=34

a=17 cm      

Similarly, ∠F=∠H

FJ=HJ

3b+6=24

3b=18

b=6 cm

Hence, The value of a=17 cm and b=6 cm

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Answer:

a=17 and b=6

Step-by-step explanation:

took the test

x axis described as the independent variable

What is horizontal line?

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x-axis is the horizontal line dividing the plane into parts. The x-axis is also described as  the abscissa and it used for independent variable.

A horizontal line is any straight path that runs from left to right or from right to left. In coordinate geometry, a line is said to be horizontal if two points on it have the same Y-coordinates. Its origins are in the term "horizon." In other words, the horizontal lines and the horizon, or x-axis, are always parallel.

A line that moves from left to right is said to be horizontally oriented. When you look beyond the horizon, you are seeing the dawn over a horizontal line. The x-axis serves as a representation of a horizontal line.

A horizontal line is one that extends from left to right across the full page. This is explained by the fact that horizontal lines are parallel to the horizon. By considering this fact, children can maintain the meaning of horizontal lines. Its root word, "horizon," refers to the line that may be seen separating the earth from the sky.

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The possible values of x are values greater than 0.67

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

0.6 < x > 67%

Express 67% as a decimal

So, we have the following representation

0.6 < x > 0.67

The above statement means that 0.6 is less than x and x is greater than 0.67

This implies that x is greater than 0.6 and x is greater than 0.67

The possible values in this case are values greater than 0.67

Take for instance, 0.7 is greater than 0.6 and 0.67

Hence, the value of x is 0.7

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Her entire monthly phone bill is $153.37, which includes long distance calls of $119.68, $84.36, and $68.49, as well as local calls of $21.00.

To figure out the student's total average monthly phone expense, combine her long distance phone bills ($119.68 + $84.36 + $68.49) and her local phone bill ($21.00), then divide the total by three (the number of months). The sum of the three long distance phone bills is $272.53, which is added to the $21.00 local phone charge for a total of $293.53. By dividing this sum by three, we get a monthly phone charge of $153.37. In summary, the student's total average monthly phone bill is $153.37, which includes long distance calls of $119.68, $84.36, and $68.49, as well as local calls of $21.00.

Here,

Long distance phone bills total:

$119.68 + $84.36 + $68.49

= $272.53

Local phone bill: $21.00

Total: $272.53 + $21.00

= $293.53

Average monthly phone bill:

$293.53 / 3

= $153.37

Her entire monthly phone cost is $153.37, which includes $119.68, $84.36, and $68.49 for long distance calls and $21.00 for local calls.

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The total number of different arrangements is 36 * 1 = 36

Permutation and Combination:

Permutation and combination are the ways to represent a group of objects by selecting them in a set and forming subsets. It defines the various ways to arrange a certain group of data. When we select the data or objects from a certain group, it is said to be permutations, whereas the order in which they are represented is called a combination.

There are 9 types of flowers and you are choosing 2 of them, so the number of ways to choose the flowers is 9 choose 2 which is equal to (98)/(21)=36.

There is 1 vase and you are choosing 1 of them, so the number of ways to choose the vase is 1 choose 1 which is equal to 1.

The total number of different arrangements is 36 * 1 = 36.

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The equation has one extraneous solution which is n is approximately 2.38

Here we have the following equation

=> 9/n²+1 = n+3/4

Now, we have to find the value of n by simplifying the given equation,

In order to so the simplification we have to do the cross multiplication on then, then we get the resulting expression as,

=> n²+1(n + 3) = 36

When we expand it then we get,

=> n²+1(n) + n²+1(3) = 36

=> n³ + n + 3n² +3 - 36 = 0

=> n³ + 3n² +  n - 33 =  0

Here we have to find the roots are the  x  values where the graph intersects the x-axis.

And then we have to find the roots replace y with  0  and solve for  x.

Then the value of n is obtained as

=> n  ≈  2.38

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A multiple-choice quiz contains 5 questions. Each question has answer choices labeled a, b, c, and d. There are 256 different ways can a student answer the five questions.

Permutation and Combination:

Permutations and combinations form counting principles, which are applied in many different situations. A permutation is the number of different arrangements that can be made from a given set. When it comes to permutations, the details matter because the order or order matters. The three country names are spelled differently: {US, Brazil, Australia} or {Australia, US, Brazil) or {Brazil, Australia, US}, and the order in which the country names appear is important. In combination, the names of the three countries are just one group, and the order or sequence does not matter.

When asked how many ways an object can be combined, dispersed, mixed or split, in this case the answer is to use the counting method to calculate the number of ways.

In this case, DDDD can be answered from AAAA, AAAB, AAAC, AAAD, AABA, AABB, ..., CADB. To calculate that number, we have to consider that for every possible answer to one question, there are four alternatives to the other question. So for the 4 choices for question 1, there are 4 choices for question 2, and for each question 3, and so on.

Therefore, the answer is 4*4*4*4 = 256 questions.

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Answer:

Step-by-step explanation:

1. To find the slope between the two points (3,4) and (-1,2), we can use the slope-intercept form of a line, y = mx + b. The slope (m) is equal to the rise (change in y) over the run (change in x), or (y2-y1)/(x2-x1). In this case, the rise is (2-4) = -2 and the run is (-1-3) = -4, so the slope is (-2)/(-4) = 1/2.

2. To find the slope between the two points (-2,0) and (5,-3), we can use the same formula, (y2-y1)/(x2-x1). The rise is (-3-0) = -3 and the run is (5-(-2)) = 7, so the slope is (-3)/7 = -3/7

3. To find the slope between the two points (4,-5) and (4,2), we can use the same formula, (y2-y1)/(x2-x1). The rise is (2- (-5)) = 7 and the run is (4-4) = 0, so the slope is 7/0 which is undefined.

4. To find the slope between the two points (-1,3) and (5,3), we can use the same formula, (y2-y1)/(x2-x1). The rise is (3-3) = 0 and the run is (5-(-1)) = 6, so the slope is 0/6 = 0.

Therefore ,as a result, the answer to the probability problem is 67.5% chance that you get good scores.

Probability theory is a branch of mathematics that focuses on calculating the likelihood that a statement is true or that an event will occur. Any number in 0 and 1, with 1 signifying certainty and 0 generally reflecting the likelihood of occurrence, can be used to represent a chance. Probability is a diagrammatic model of range the chance or likelihood that an event will occur.

Here,

Given : There is a 0.25 percent probability that we work tonight without studying,

a 0.80 percent chance that you study and get high grades, and

a 0.30 percent chance that you don't study and get a good grade.

To calculate the likelihood that we will receive high marks,

multiply by: 0.25 * 0.30 + 0.75 * 0.8

=> 0.075 + 0.60 => 0.675

You have a 67.5% chance of getting good grades.

As a result, the answer to the probability problem is 67.5% chance that you get good scores.

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Step-by-step explanation:

since we got a point and actually the slope, we can start with the point-slope form and transform.

you know that the slope-intercept form is

y = ax + b

"a" is the slope, "b" is the y-intercept.

we see therefore, that the slope of the given line is 1/4.

a perpendicular slope (90°) turns the slope fraction upside-down and flips the sign.

so, the perpendicular slope is -4/1 = -4.

the point-slope form is

y - y1 = a(x - x1)

"a" is again the slope (for the new line this is -4), (x1, y1) is a given point. in our case (1, 1).

so, we get

y - 1 = -4(x - 1)

we transform by simplifying :

y - 1 = -4x + 4

y = -4x + 5

y = -4x + 5

is the perpendicular line in slope-intercept form that passes through (1, 1).

the probability of "heads" on the first flip of this coin will be 1/2.

What is probability and example?

Probability = the number of ways of achieving success. the total number of possible outcomes. For example, the probability of flipping a coin and it being heads is ½, because there is 1 way of getting a head and the total number of possible outcomes is 2 (a head or tail). We write P(heads) = ½ .

The chances of an event occurring are defined by probability. Probability has several uses in games, in business to create probability-based forecasts,

"Heads" is the result of the latest flip and the preceding four flips. The total sample space for the heads.

P(A^B)=(1/2)^5

The preceding four flips in a row all resulted in "heads."

P(B)=(1/2)^4

The probability that the 5th flip lands head is;

⇒P(A^B)/p(B)= (1/2)⁵/(1/2)⁴

⇒P(A^B)/p(B)= 1/2

Hence, the probability of "heads" on the next (5th) flip of this coin will be 1/2.

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She  should plant 118 trees per acre to maximize her harvest area. This will yield 96 bushels per tree.

95 trees per acre x 80 bushels per tree = 7600 bushels

96 trees per acre x 77 bushels per tree = 7392 bushels

97 trees per acre x 74 bushels per tree = 7158 bushels

98 trees per acre x 71 bushels per tree = 6938 bushels

99 trees per acre x 68 bushels per tree = 6732 bushels

100 trees per acre x 65 bushels per tree = 6500 bushels

101 trees per acre x 62 bushels per tree = 6262 bushels

102 trees per acre x 59 bushels per tree = 6038 bushels

103 trees per acre x 56 bushels per tree = 5828 bushels

104 trees per acre x 53 bushels per tree = 5532 bushels

105 trees per acre x 50 bushels per tree = 5250 bushels

106 trees per acre x 47 bushels per tree = 4978 bushels

107 trees per acre x 44 bushels per tree = 4716 bushels

108 trees per acre x 41 bushels per tree = 4452 bushels

109 trees per acre x 38 bushels per tree = 4188 bushels

110 trees per acre x 35 bushels per tree = 3925 bushels

111 trees per acre x 32 bushels per tree = 3663 bushels

112 trees per acre x 29 bushels per tree = 3407 bushels

113 trees per acre x 26 bushels per tree = 3151 bushels

114 trees per acre x 23 bushels per tree = 2895 bushels

115 trees per acre x 20 bushels per tree = 2300 bushels

116 trees per acre x 17 bushels per tree = 1972 bushels

117 trees per acre x 14 bushels per tree = 1638 bushels

118 trees per acre x 11 bushels per tree = 1306 bushels

Therefore, 118 trees per acre will yield the highest harvest of 1306 bushels.

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On solving the provided question, we can say that this is from integral type of quadric surface [tex]SA = (\pi / 6) * 26 = > SA = (13 * \pi) / 3[/tex]

In mathematics, integrals translate integers into functions that express concepts like displacement, area, and volume that result from the combination of little facts. Integral discovery is a process that is referred to as integration.

We concentrate on the x distance from the y-axis since the rotation is about the y-axis.

function for x, which is

x = + or - sqrt(y)

x = sqrt(y)

This is function is g(y) = sqrt(y)

g(y) about the y-axis on the closed interval [c, d], that is, y is an element of [c, d] is

Surface Area(SA) = 2 * pi * integral from c to d of ( g(y) * sqrt(1 +(g’(y))^2 ) *dy

The given interval is x=0 to x=sqrt(2), using the given function y = x^2 we obtain y = 0 to y = 2

g(y) = sqrt(y) and g’(y) = 1/(2 * sqrt(y))

SA = 2 * pi * integral from 0 to 2 of sqrt(y) * sqrt(1 +(1/(2*sqrt(y)))^2) * dy

SA = 2 * pi * integral from 0 to 2 of sqrt(y *(1 +(1/(4*y)) * dy

SA = 2 * pi * integral from 0 to 2 of sqrt(y +(1/4) * dy

Apply u substitution, let u = y +(1/4), then take derivative of u which gives us du = dy. As part of the substitution, we need to change the bounds to 1/4 and 9/4

SA  2 * pi * integral from 1/4 to 9/4 of u^(1/2) du

[tex]f u^(1/2) is 2u^(3/2) / 3[/tex]

[tex]SA = evaluate 2 * \pi * ( 2u^(3/2) / 3 ) from 9/4 to 1/4\\SA = [ 2 * \pi * ( 2 * (9/4)^(3/2) / 3) ] - [ 2 * \pi * ( 2 * (1/4)^(3/2) / 3) ]\\2 * \pi * 2 * (1/3)\\SA =((4 * \pi) / 3) * { [ (9/4)^(3/2) / 3) ] - [ (1/4)^(3/2) / 3) ] }\\ 4^(3/2) = sqrt(64) = 8\\SA = ((4 * \pi) / 3) * [ ( 9^(3/2) -1) / 8 ]\\SA = (\pi / 6) * ( 27 -1)\\SA = (\pi / 6) * 26\\SA = (13 * \pi) / 3\\[/tex]

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The correct system of equations to determine the number of nickels and dimes that Luis has is: n + d = 30 and 0.5n + 0.1d = 2.20.
What is Equation?
In mathematics, an equation is a statement that two expressions are equal. It consists of two expressions connected by an equal sign (=). For example, the equation "2 + 2 = 4" states that the sum of two and two is equal to four. Equations are used to describe relationships between different variables, as well as to solve unknown values.

This system of equations can be used to solve for n and d. The first equation states that the total number of coins is equal to 30, while the second equation states that the total value of the coins is equal to $2.20. By solving these two equations, it can be determined how many nickels and dimes Luis has.

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Using the formula of volume of a cone, the diameter of the cone is 5cm

The volume of a cone is a measure of the amount of space inside the cone. It can be calculated using the formula:

Volume = (1/3) * π * r^2 * h

Where:

The formula for the volume of a cone is a product of 1/3 and the product of π, radius square and height. The unit of measurement of the volume will be the cube of the unit of measurement of the radius and height.

It's important to note that a cone has a circular base, the radius of which is the distance from the center of the base to its edge. The height of the cone is the distance from the tip of the cone to the center of the base.

In this problem, we can simply find the diameter by calculating the radius.

V = 1/3(πr²h)

Substituting the values into the formula

42.5 = 1/3(3.14 * r² * 6.5)

42.5 * 3 = 20.41 r²

127.5 = 20.41r²

r² = 6.2469

r = 2.5

But the radius of a circular body is always half the length of it's diameter

d = 2 * r

d = 2 * 2.5

d = 5

The diameter is 5cm

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Answer:

.10d + .05n  ≤ 1.00

Step-by-step explanation:

a dine with worth 10 cents and a nickel is worth 5 cents.  Together this amount cannot be over 1 dollar.

So, 216° is the largest angle among the heptagon.

A heptagon has 7 sides and 7 angles. We know that two of the angles are (3x – 17)° and one angle is (4x – 36)°. The remaining four angles are all (2x – 13)°.

We can find the total measure of all the angles in the heptagon by using the formula for the sum of the angles in a polygon:

(n-2) * 180 = (7-2) * 180 = 5 * 180 = 900°

We can set up an equation to find the measure of the remaining angles by subtracting the measure of the known angles from the total measure:

900 = 2(3x – 17) + (4x – 36) + 4(2x – 13)

Expanding and simplifying the equation:

900 = 6x – 34 + 4x – 36 + 8x – 52

900 = 18x – 122

Now we can solve for x:

18x = 1022

x = 57

Now we know that one of the angle is (4x – 36) = (4*57 - 36) = 216°

That is the largest angle among the heptagon.

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Therefore , the solution of GCD problem comes out to be the greatest common factor of 252 and 60 is 223 = 12.

The number that divides two or more numbers most precisely by itself is said to be the largest common denominator (GCD) of those numbers. It is also known as the highest common denominator (HCF). Since both 15 and 10 can be divided by 5, for instance, the highest common factor of these two numbers is 5.

Here,

The highest common factor (hcf), greatest common factor, and the greatest common divisor (gcd) are other names for it (gcf).

The highest integer which divides both numbers is known as the largest common series of 2 numbers.

We must choose the number that divides 252 and 60 most equally.

252's prime factorization is as follows:

252 = 2×2×3×3×7

the prime factors that make up 60 are.

60 = 2×2×3×5

These common elements are: 2 2 3

Therefore, the greatest common factor of 252 and 60 is 223 = 12.

Therefore , the solution of GCD problem comes out to be the greatest common factor of 252 and 60 is 223 = 12.

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If JK has endpoints (-10, 1) and K(2, -2). Point L divides JK into two parts with lengths in a ratio of 2:1 then the possible locations of L is at (-7, 0.25)

A ratio is an ordered pair of numbers a and b, written a / b where b does not equal 0

L divides JK into two parts with lengths in a ratio of 2:1

so JL:LK is either 2:1 or 1:2

Let us solve the midpoint of JK

Midpoint=(-10+2/2, 1-2/2)

M=(-4,-1/2)

Midpoint of JM is (-10-4/2, 1-1/2/2)

L: (-7, 1/4)

Hence, the possible locations of L is at (-7, 0.25)

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Answer: (2x-2y-1)(x-y)

Step-by-step explanation:

To factor 2(x-y)² - x+y, we first recognize that the expression is a difference of squares, which means it can be factored into the form (a-b)(a+b). To identify the values of a and b, we can look for common factors between the two terms, which are 2(x-y)² and -x+y.

The common factor between 2(x-y)² and -x+y is x-y. We can factor it out by dividing both terms by x-y:

2(x-y)² - x+y = (x-y) * (2(x-y) - 1)

Now we can write the expression as (x-y)(2x-2y-1) .

As you can see (x-y) is common in both the term, so we can factor it out, and we are left with (2x-2y-1)(x-y)

The number of representatives for Oregon, which has a population of about 3.3 million is 6 Representatives (Option B).

The regression equation y = 1.73x + 0.39 is the equation of the line of best fit. To use this equation to predict the number of representatives for Oregon, which has a population of about 3.3 million, we need to substitute the population of Oregon (x = 3.3 million) into the equation and solve for y.

y = 1.73x + 0.39

y = 1.73(3.3) + 0.39

y = 5.659 + 0.39

y = 6.049

So the number of representatives for Oregon is approximately 6.049. The closest answer to that is

B. 6 representatives

Therefore, The number of representatives for Oregon, which has a population of about 3.3 million is 6 Representatives (Option B).

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So the Statement the first step in the K-means clustering algorithm is to randomly assign each observation within the data set to a cluster from 1 to k.

Hence, The first step in the K-means clustering algorithm is to randomly assign each observation within the data set to a cluster from 1 to k.

K-means cluster algorithm:

K-Means Clustering is an unsupervised learning algorithm that is used to solve clustering problems in machine learning or data science. In this topic, we will learn what is K-means clustering algorithm is, how the algorithm works, along with the Python implementation of k-means clustering.

The first step in the K-means clustering algorithm is to randomly assign each observation within the data set to one of the k clusters. This initial assignment is done randomly in order to ensure that the algorithm is not influenced by any initial ordering of the observations. The subsequent steps of the algorithm involve iteratively re-assigning observations to clusters and updating the cluster centroids until convergence is reached.

As a result, the K-means clustering algorithm's first step is to randomly assign each observation inside the data set to one of the k clusters, ranging from 1 to k.

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Answer:

1

Step-by-step explanation:

use Pythagoras as shown

Answer:

This leads to C:  x + y > 2 and 2x - y > 1

Step-by-step explanation:

All of the answer options have the same structure, with the exception of the < and > signs.  We can assume the the two lines on the graph conform to the line defined by:

x + y =2, and

2x - y = 1

See the attached graph.  The lines y = -x+2 and y = 2x-1 match the provided graph.

But the equations are all inequalities.  So the darker areas represent the possibilities of values for x and y.  The darkeest area is where the solutions for both equations overlap, so look for equations that would satisfy that situation.  As shown, the equations are:

     y<2x-1, and

     y>-x+2

Rearrange these to match the options:

y-2x < -1, and

y + x > 2

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Note that y-2x < -1 is the same as 2x-y > 1

This leads to C:  x + y > 2 and 2x - y > 1

On solving the provided question, we can say that there are 66 ways , on counting .

Calculating the number of components in a limited collection of objects is the process of counting. H. Calculate the set's size. Calculating the quantity or overall number of items in a collection or group is the definition of counting in mathematics. In other words, counting something entails reciting the number in order and individually valuing each item in the group. To count objects, use the count number. 1, 2, 3, 4, 5, and so forth are examples of counting numbers. In daily life, people employ the numbers required to count items, items, money, etc. Because of this, count numbers cannot be fractions, integers, negative numbers, or decimals.

here in question,

there are 66 ways.

To know more about counting visit:

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You can get a number between two numbers by adding the two numbers together and then dividing by two.

To learn more about to get a between number refer to:

https://brainly.com/question/28223520

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