8. Which of the following is a predictive model? A. clustering B. regression C. summarization D. association rules 9. Which of the following is a descriptive model? A. regression B. classification C.

The number of sequences cannot be negative, we take the remainder when -11750 is divided by 1000, which is 250. The answer is 250.

To solve the problem, we will use the principle of inclusion-exclusion. Let A be the set of 5-digit sequences that have at least one digit that appears 3 times, and let B be the set of 5-digit sequences that have at least one digit that appears 4 or 5 times.

We first count the size of set A. There are 10 choices for the digit that appears 3 times, and 4 choices for its location in the sequence. For the remaining 2 digits, there are 10 choices each. Thus, the size of A is 10 * 4 * 10 * 10 = 4000.

Next, we count the size of set B. There are 10 choices for the digit that appears 4 or 5 times, and 5 choices for its location in the sequence. For the remaining digit, there are 9 choices. Thus, the size of B is 10 * 5 * 9 = 450.

However, some sequences have a digit that appears both 3 times and 4 or 5 times. To count these sequences, we choose the repeated digit first, and then choose its location. There are 10 choices for the repeated digit, and 4 choices for its location. For the remaining 2 digits, there are 9 choices each, and 5 choices for their location. Thus, the size of the intersection of A and B is 10 * 4 * 9 * 9 * 5 = 16200.

By inclusion-exclusion, the number of 5-digit sequences that have a digit that appears at least 3 times is |A ∪ B| = |A| + |B| - |A ∩ B| = 4000 + 450 - 16200 = -11750. However, since the number of sequences cannot be negative, we take the remainder when -11750 is divided by 1000, which is 250.

Therefore, the answer is 250.

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Answer:

BA ≈ 410.1 m

Step-by-step explanation:

using the tangent ratio in the right triangle

tan34° = \(\frac{opposite}{adjacent}\) = \(\frac{BA}{BC}\) = \(\frac{BA}{608}\) ( multiply both sides by 608 )

608 × tan34° = BA , then

BA ≈ 410.1 m ( to the nearest tenth )

It should be noted that rotating Q 180 degrees using the center P has the same effect as reflecting Q over the Line M due to the fact that Lines L and M are perpendicular lines.

It should be noted that perpendicular lines are the lines that intersect at a 90-degree angle. When two non-vertical lines are in the same plane and intersect at a right angle, they are said to be perpendicular.

It should be noted that horizontal and vertical lines are simply perpendicular to each other that is, the axes of the coordinate plane. Also, the slopes of the perpendicular lines are negative reciprocals.

Based on the information, rotating Q 180 degrees from the center will be similar to reflecting Q over any of the perpendicular lines. Note that an overview was given as the information wasn't complete.

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Answer:

1. D

2. A

3. C

4. D

5. B

6. B

7. C

8. D

have a good day.

Answer:

no solution

Step-by-step explanation:

|x| = -10

Absolute value means that it is positive or 0

It cannot be negative

There is no solution

Step-by-step explanation:

There is no solution

|A|

can be only 0 or positive number

can't be -

from the rule of Mathematics

The area of the smaller sector or minor sector is  125.66 yd².

The area of the larger sector or major sector is  326.73 yd².

The areas of the minor and major sectors is calculated by applying the following formulas follow;

Area of sector is given as;

A = (θ/360) x πr²

where;

The area of the smaller sector or minor sector is calculated as follows;

A = ( 100 / 360 ) x π ( 12 yd)²

A = 125.66 yd²

The area of the larger sector or major sector is calculated as follows;

θ = 360 - 100

θ = 260⁰

A =  ( 260 / 360 ) x π ( 12 yd)²

A = 326.73 yd²

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Answer:

The answer is 9x + 3

Step-by-step explanation:

Now,

UX = UV + VW + WX

UX = (3x + 1) + (4x – 6) + (2x + 8)

UX = 3x + 1 + 4x – 6 + 2x + 8

UX = 3x + 4x + 2x + 1 – 6 + 8

UX = 9x + 3

Thus, The answer is 9x + 3

-TheUnknownScientist 72

The value of line segment UX is,

UX = 9x + 3

We have to given that,

UV = 3x + 1

VW = 4x – 6

WX = 2x + 8

Now, We can see by the image,

UX = UV + VW + WX

Substitute all the given values,

UX = (3x + 1) + (4x – 6) + (2x + 8)

UX = 3x + 1 + 4x – 6 + 2x + 8

UX = 3x + 4x + 2x + 1 – 6 + 8

UX = 9x + 3

Thus, The answer is, 9x + 3

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Given statement 'a local variable is a variable defined inside a function that can only be used inside its function' is False

A local variable is a type of variable that we declare inside a block or a function, unlike the global variable. They can be used only by the statements that are inside the function or the block of the code. Local variables are not known to functions outside their own.

The variable declared is local within that function that is the declared variable is accessible inside that block itself, it cannot be accessible outside the given function.

Consider the following multiplication function:

ex - void multi()

{

int a = 10,  b = 2, c ;

c = a * b ;

cout << c ;

}

int main()

{

cout << "value for c is :"<< c ;

return 0;

}

Here inside the multi function variable a, b, c are declared and initialized inside the function.

Thus, a local variable is defined inside the body of the function and is not accessible outside of the function.

Therefore, given statement 'a local variable is a variable defined inside a function that can only be used inside its function' is False

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Answer:

2x -1

Step-by-step explanation:

x*x =2x 3-4 =-1

2x+-4

the solution for the number of tigers present over time is given by:

P - (P^2)/(2K) - (T/K)P + (T/K)ln(P) = rt + 11.375 + 0.1ln(15)

To solve the given differential equation for the population of Bengal tigers in the conservation park, we'll use the given parameters and initial conditions.

The differential equation for the population (P) is:

P't = rp(1 - P/K)(1 - T/P)

Given:

Carrying capacity (K) = 100

Minimum threshold value for survival (T) = 10

Population growth rate (r) = 1% = 0.01 (per year)

Initial population (P0) = 15

Now, let's solve the differential equation to find the number of tigers present over time.

Separating variables, we have:

(1 - P/K)(1 - T/P) dP = rp dt

Integrating both sides:

∫ (1 - P/K)(1 - T/P) dP = ∫ rp dt

Let's evaluate the integral on the left side:

∫ (1 - P/K)(1 - T/P) dP = ∫ (1 - P/K - T/K + T/(KP)) dP

= ∫ (1 - P/K) - (T/K) + (T/PK) dP

= P - (P^2)/(2K) - (T/K)P + (T/K)ln(P) + C1

On the right side, we have:

∫ rp dt = rt + C2

Combining both sides and simplifying, we have:

P - (P²2)/(2K) - (T/K)P + (T/K)ln(P) + C1 = rt + C2

To solve for the constants C1 and C2, we use the initial condition P(0) = P0:

P0 - (P0²2)/(2K) - (T/K)P0 + (T/K)ln(P0) + C1 = r(0) + C2

P0 - (P0²2)/(2K) - (T/K)P0 + (T/K)ln(P0) + C1 = C2

Substituting the given values:

15 - (15²2)/(2×100) - (10/100)×15 + (10/100)ln(15) + C1 = C2

15 - (225/200) - (150/100) + (10/100)ln(15) + C1 = C2

15 - 1.125 - 1.5 + 0.1ln(15) + C1 = C2

Simplifying further, we have:

12.375 + 0.1ln(15) + C1 = C2

Now we have the general solution:

P - (P²2)/(2K) - (T/K)P + (T/K)ln(P) = rt + C

Using the initial condition P(0) = 15, we can solve for C:

15 - (15²2)/(2×100) - (10/100)×15 + (10/100)ln(15) = r(0) + C

15 - 1.125 - 1.5 + 0.1ln(15) = C

11.375 + 0.1ln(15) = C

Therefore, the solution for the number of tigers present over time is given by:

P - (P²2)/(2K) - (T/K)P + (T/K)ln(P) = rt + 11.375 + 0.1ln(15)

This is the general solution for the population of Bengal tigers in the conservation park.

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We can calculate the probability that the sample mean would be less than 118.8 months by standardizing the sample mean using the z-score and consulting the standard normal distribution.

To calculate the z-score, we need to calculate the standard deviation of the sampling distribution of the sample mean, also known as the standard error. The standard error is the square root of the variance divided by the square root of the sample size. In this case, the variance is 256, and the sample size is 95, so the standard error is √(256/95) ≈ 2.693.

Next, we calculate the z-score using the formula z = (x - μ) / σ, where x is the desired value (118.8 months), μ is the population mean (121 months), and σ is the standard error (2.693). Plugging in the values, we get z = (118.8 - 121) / 2.693 ≈ -1.013.

Finally, we find the probability that the sample mean is less than 118.8 months by looking up the z-score in the standard normal distribution table or using statistical software. From the table or software, we find that the probability corresponding to a z-score of -1.013 is approximately 0.1562.

Therefore, the probability that the sample mean would be less than 118.8 months is approximately 0.1562 or 15.62%.

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The answer to this is 2 67.5

Answer:

(3,-2)

Step-by-step explanation:

The vertex is the lowest point of the arc!

Hope I helped!

Answer:g(x)

Step-by-step explanation:1/5 g (x)

The coordinates of the point at 3/4 of the distance from A to B from A is (-3.5, 1.25)

The coordinates of point A = (-5, -4),

The coordinates of the point B = (-3, 3)

Let the point at the distance 3/4 from A to B = P

The coordinates of point 3/4 from A to B = P

At the x-coordinate, the distance from B to A is =  -3-(-5) = 2 units.

At the y-coordinate, the distance from B to A is = 3-(-4) = 7 units.

Hence, the coordinates of P = (-5 + (3/4×(x-coordinate), -4 + 3/4×(y-coordinate)

                                            P = (-5 + (3/4×(2), -4 + 3/4×(7))

                                            P = (-3.5, 1.25)

Hence, the coordinates of the point at 3/4 of the distance from A to B from A is (-3.5, 1.25).

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The complete question is -

What are the coordinates of the point 3/4 of the way from A to B?

The amount of wrapping paper that is required is; c. 202 sq. in.

The formula for the surface area of a rectangular cuboid is given as:

SA = 2(lw + lh + hw)

where;

l = length

h = height

w = width

We are given;

Length; l = 3 in.

Width; w = 7 in.

Height; h = 8 in.

Thus, surface area is;

SA = 2((3*7) + (3*8) + (8*7))

SA = 2(21 + 24 + 56)

SA = 2(101)

SA = 202 sq. in

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Answer:

it is 0.34

Step-by-step explanation:

Answer:

I Think D.

Step-by-step explanation:

Answer:

hi now i ain't too sure but its C

Step-by-step explanation:

since we r adding it will move to the right side 2 blocks then we go down 5 since its minus

Answer:

Total number in favour:

Probability:

Total number in against:

Probability:

The answer of 1. The probability density function (PDF) of \(W = X^2\) when X has an exponential (1) PDF and 2. The X and Y are dependent random variables.

The PDF of \(W = X^2\), where X has an exponential (1) distribution, is given by \(\lambda e^{(-\lambda \sqrt w)} * 1/(2w^{(1/2)})\). X and Y are dependent random variables based on their joint PDF.

1. If X has an exponential (1) probability density function (PDF), we can find the PDF of \(W = X^2\) using the method of transformations.

Let's denote the PDF of X as fX(x). Since X has an exponential (1) distribution, its PDF is given by:

\(fX(x) = \lambda e^{(-\lambda x)}\)

where λ = 1 in this case.

To find the PDF of \(W = X^2\), we need to apply the transformation method. Let \(Y = g(X) = X^2\). The inverse transformation is given by X = h(Y) = √Y.

To find the PDF of W, we can use the formula:

fW(w) = fX(h(w)) * |dh(w)/dw|

Substituting the values:

fW(w) = fX(√w) * |d√w/dw|

Taking the derivative:

d√w/dw = 1/(2√w) = \(1/(2w^{(1/2)})\)

Substituting back into the equation:

\(fW(w) = fX(\sqrt w) * 1/(2w^{(1/2)})\)

Since fX(x) = \(\lambda e^{(-\lambda x)}\), we have:

fW(w) = \(\lambda e^{(-\lambda x)}\)  \(* 1/(2w^{(1/2))}\)

This is the probability density function (PDF) of \(W = X^2\) when X has an exponential (1) PDF.

2. To find the constant c for the joint probability density function (PDF) fx,y(x, y) = \(ce^{(-(x^2/8) - (4y^2/18))\), we need to satisfy the condition that the PDF integrates to 1 over the entire domain.

The condition for a PDF to integrate to 1 is:

∫∫ f(x, y) dx dy = 1

In this case, we have:

∫∫ \(ce^{(-(x^2/8) - (4y^2/18)) }dx dy = 1\)

To find the constant c, we need to evaluate this integral. However, the limits of integration are not provided, so we cannot determine the exact value of c without the specific limits.

Regarding the independence of X and Y, we can determine it by checking if the joint PDF fx,y(x, y) can be factored into the product of individual PDFs for X and Y.

If fx,y(x, y) = fx(x) * fy(y), then X and Y are independent random variables.

However, based on the given joint PDF fx,y(x, y) = \(ce^{(-(x^2/8) - (4y^2/18))\), we can see that it cannot be factored into separate functions of X and Y. Therefore, X and Y are dependent random variables.

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The solutions are all the points inside the shaded region:

(1, 0.5) , (2,-1) and (2.5, -2)

The relative maxima and relative minima of the function

f(x) = x^5 - 4x^3 + 3x^2 - 8x - 6

The relative minima and maxima is calculated

The procedure is done as follows

x^5 - 4x^3 + 3x^2 - 8x - 6

differentiating gives

5x^4 - 12x^2 + 6x - 8

solving the equation for the critical values are

x₁ = 0.176 + 0.73i

x₂ = 0.176 - 0.73i

x₃ = 1.518

x₄ = -1.871

The second derivative

5x^4 - 12x^2 + 6x - 8

differentiating gives

20x^3 - 24x + 6

substituting x = 1.58

20 * 1.58^3 - 24 * 1.58 + 6

= 46.966 (positive hence minima)

substituting x = -1.871

20 * -1.871^3 - 24 * -1.871 + 6

= -169.9 (negative hence maxima)

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Answer:

3/8 lb or 6 oz

Step-by-step explanation:

Answer:

5.6

Step-by-step explanation:

(3÷3/4)÷5/7

\( \frac{3 \times 4}{3} \div \frac{5}{7} \)

\(4 \div \frac{5}{7} \)

\(4 \times \frac{7}{5} \)

\( \frac{28}{5} \)

=5.6

use "keep, change, flip " when dividing a number by a fraction.

keep the whole number

flip the divide sign to multiply

change the placement of number e.g. 5/7 becomes 7/8

then solve

Answer:

\((x+6)(x-6)\)

Step-by-step explanation:

Hi there!

The difference of squares theorem states that \(a^2-b^2=(a+b)(a-b)\).

We're given:

\(x^2-36\)

This can be rewritten since 36 is a perfect square:

\(=x^2-6^2\)

Use the difference of squares theorem:

\(=(x+6)(x-6)\)

I hope this helps!

Answer:

(x-6)(x+6)

Step-by-step explanation:

x^2 -36

Rewriting

x^2 - 6^2

We know a^2 - b^2 = (a-b)(a+b)

(x-6)(x+6)

The expression is given as

Solve and simplify the expression by opening the brackets

Hence the answer is

Answer:

50 units²

Step-by-step explanation:

Solve for both long sides:

6² + 8² = x²

36 + 64 = x²

100 = x²

x = 10

Solve for both short sides:

3² + 4² = x²

9 + 16 = x²

25 = x²

x = 5

Area:

5 x 10 = 50

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

Step-by-step explanation:

The coordinates of Point E are (-4,2) and Point E is a reflection of point D across the X-axis.

Point E has the same y-coordinate as point D, which is 2. However, the x-coordinate of point E is the opposite of the x-coordinate of point D. The x-coordinate of point D is 4, so the x-coordinate of point E must be -4. Therefore, the coordinates of Point E are (-4,2).

As for the reflection, you can imagine a mirror placed on the x-axis (horizontally) and Point D and E being on the same side of that mirror.

Therefore, As Point D is reflected on the mirror, it will be flipped and the x-coordinate changes its sign and becomes -4. Therefore Point E is a reflection of point D across the X-axis.

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See full question below

Point E has the same y-coordinate as point D, but the x-coordinate of point E is the opposite of the x- coordinate of point D. Drag tiles to complete the statements. (4,2) (4,-2) (-4,2) (-4,-2) X-axis y-axis The coordinates of Point E are --- &Point E  is a reflection of point D across the ---

The following picture represents an explanation to the given question:

CD represents the beacon

We need to find the distance AB

The measure of the angle C = 90

At the triangle BCD,

The measure of the angle CDB = 90 - 21 = 69

Using the sine law, we will find the length of BD

So,

At the triangle ABC

The measure of the angle CDA = 90 - 10 = 80

So, the measure of the angle ADB = angle CDA - angle CDB = 80 - 69 = 11

At the triangle ADB, using sin law:

substitute with the value of BD and CD s

So,

Rounding the answer to the nearest foot

So, the answer will be AB = 346 ft