please answer question 4 with a simple explanation on how to solve. question 4: What can we say about these 3 lines?​

Answer:

Step-by-step explanation:

Pour trouver l'aire totale d'un cylindre, il faut ajouter l'aire de la base circulaire du cylindre à l'aire de sa surface latérale.

La formule pour l'aire de la base circulaire est:

Aire de la base = πr²

où r est le rayon du cylindre.

La formule pour l'aire de la surface latérale est:

Aire latérale = 2πrh

où r est le rayon du cylindre et h est la hauteur du cylindre.

Donc, pour le cylindre donné avec un rayon de 3 cm et une hauteur de 10 cm, l'aire de la base est:

Aire de la base = πr² = π(3²) = 9π cm²

L'aire de la surface latérale est:

Aire latérale = 2πrh = 2π(3)(10) = 60π cm²

Pour trouver l'aire totale, on ajoute l'aire de la base et l'aire de la surface latérale:

Aire totale = Aire de la base + Aire latérale = 9π + 60π = 69π cm²

Donc, l'aire totale du cylindre est 69π cm².

The amount that Jamal makes is given as follows:

$403.2.

The amount is obtained applying the proportions in the context of the problem.

Jamal is painting a house of 24 ft width and 14 ft length, hence the area is given as follows:

A = 24 x 14

A = 336 ft².

It takes 2 hours for every 50 square feet they paint, hence the time needed is given as follows:

336/50 x 2 = 13.44 hours.

The paint company charges 30$ a hour, hence the total cost is given as follows:

13.44 x 30 = $403.2.

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The area of the surface is 8π.

Given, r(s, t) = (t sinh(s), t cosh(s), t)

Taking partial derivative with respect to s

[tex]\frac{\hat{a}r}{\hat{a}s}[/tex] = (t cosh(s), t sinh(s), 0)

Taking partial derivative with respect to t

[tex]\frac{\hat{a}r}{\hat{a}t}[/tex] = ( sinh(s), cosh(s), 1)

The cross product of these partial derivatives is given by

[tex]|\frac{\hat{a}r}{\hat{a}s} \times\frac{\hat{a}r}{\hat{a}t} |[/tex] = | (t sinh(s), t cosh(s), t)|

= t √(sinh²(s) + cosh²(s) + 1)

= t √(cosh²(s) - 1 + 1)

= t cosh(s)

So, the area of the surface is given by the integral:

A = ∫∫[tex]|\frac{\hat{a}r}{\hat{a}s} \times\frac{\hat{a}r}{\hat{a}t} |[/tex] ds dt

= 2 Ï [tex]\hat{a_0}^{\hat{a} tcosh(s)ds}[/tex]

(Integrating over s)

= 2 Ï [tex]\hat{a_0}^{\hat{a} t(\frac{e^s+e^{-s}}{2} ) ds}[/tex]

=  2 Ï [tex]\hat{a_0}^{\hat{a} \frac{t}{2} (e^s+e^{-s}) ds}[/tex]

= 2 Ï [tex][\frac{t}{2}e^s]_0^\hat{a}[/tex]

= 2π (∞ - 0)

= 8π

Therefore, the area of the surface is 8π.

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The conditional probability that the second card is a king given that the first card is a diamond is 4/51.

What is probability?

Probability is a measure of the likelihood or chance of an event occurring. It is a number between 0 and 1, with 0 representing an impossible event and 1 representing a certain event. The probability of an event is calculated by dividing the number of ways the event can occur by the total number of possible outcomes.

To find the conditional probability that the second card is a king given that the first card is a diamond, we need to use Bayes' theorem.

Let A be the event that the first card is a diamond, and let B be the event that the second card is a king. We want to find P(B|A), the probability that B occurs given that A has occurred.

Bayes' theorem states:

P(B|A) = P(A|B) * P(B) / P(A)

We know that the probability of drawing a king from a standard deck of cards is 4/52, or 1/13 (since there are 4 kings in a deck of 52 cards). So, P(B) = 1/13.

To find P(A), the probability that the first card is a diamond, we note that there are 13 diamonds in a deck of 52 cards, so P(A) = 13/52 = 1/4.

To find P(A|B), the probability that the first card is a diamond given that the second card is a king, we note that if the second card is a king, then the first card could be any of the remaining 51 cards, of which 13 are diamonds. So, P(A|B) = 13/51.

Putting it all together, we have:

P(B|A) = P(A|B) * P(B) / P(A)

= (13/51) * (1/13) / (1/4)

= 4/51

Therefore, the conditional probability that the second card is a king given that the first card is a diamond is 4/51.

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[tex]{ \pmb{ \hookrightarrow}} \: \underline{\boxed{\pmb{\sf{Area_{(Circle)} \: = \: \pi \: {r}^{2} }}}} \: \pmb{\red{\bigstar}} \\ [/tex]

_________________________________________________

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \pi \: {r}^{2} [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \frac{22} {7} \: \times {8}^{2} \\ [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \frac{22} {7} \: \times 8 \times 8 \\ [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \frac{22} {7} \: \times 64 \\ [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \frac{1408} {7} \: \: {yard}^{2} \: \\ [/tex]

_________________________________________________

→ Radius = 18/2 = 9 inch

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \pi \: {r}^{2} [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \frac{22} {7} \: \times {9}^{2} \\ [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \frac{22} {7} \: \times 9 \times 9 \\ [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \frac{22} {7} \: \times 81 \\ [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \frac{1782} {7} \: \: {inch}^{2} \: \\ [/tex]

_________________________________________________

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \pi \: {r}^{2} [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \frac{22} {7} \: \times {10}^{2} \\ [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \frac{22} {7} \: \times 10 \times 10 \\ [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \frac{22} {7} \: \times 100 \\ [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \frac{2200} {7} \: \: {yard}^{2} \: \\ [/tex]

_________________________________________________

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \pi \: {r}^{2} [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \frac{22} {7} \: \times {6}^{2} \\ [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \frac{22} {7} \: \times 6 \times 6 \\ [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \frac{22} {7} \: \times 36 \\ [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \frac{792} {7} \: \: {inch}^{2} \: \\ [/tex]

_________________________________________________

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \pi \: {r}^{2} [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \frac{22} {7} \: \times {4}^{2} \\ [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \frac{22} {7} \: \times 4 \times 4 \\ [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \frac{22} {7} \: \times 16 \\ [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \frac{352} {7} \: \: {ft}^{2} \: \\ [/tex]

_________________________________________________

→ Radius = 10/2 = 5 ft

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \pi \: {r}^{2} [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \frac{22} {7} \: \times {5}^{2} \\ [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \frac{22} {7} \: \times 5 \times 5 \\ [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \frac{22} {7} \: \times 25 \\ [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \frac{550} {7} \: \: {ft}^{2} \: \\ [/tex]

_________________________________________________

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \pi \: {r}^{2} [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \frac{22} {7} \: \times {1}^{2} \\ [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \frac{22} {7} \: \times 1 \times 1 \\ [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \frac{22} {7} \: \times 1 \\ [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \frac{22} {7} \: \: {yard}^{2} \: \\ [/tex]

_________________________________________________

→ Radius = 14/2 = 7 inch

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \pi \: {r}^{2} [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \frac{22} {7} \: \times {7}^{2} \\ [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \frac{22} {7} \: \times 7 \times 7 \\ [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \frac{22} {7} \: \times 49 \\ [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \frac{1078} {7} \: \: \: \\ [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: 154 \: \: {inch}^{2} \: \\ [/tex]

_________________________________________________

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \pi \: {r}^{2} [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \frac{22} {7} \: \times {2}^{2} \\ [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \frac{22} {7} \: \times 2 \times 2 \\ [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \frac{22} {7} \: \times 4 \\ [/tex]

[tex]\longrightarrow \sf \: Area_{(Circle)} \: = \: \frac{88} {7} \: \: {yard}^{2} \: \\ [/tex]

_________________________________________________

a) the vector product of A and B is -12.00i^ - 22.00j^ - 24.00k^. b) the magnitude of the vector product is √(1441).

Part A:

The vector product of two vectors A and B is given by:

A × B = (A_yB_z - A_zB_y)i^ + (A_zB_x - A_xB_z)j^ + (A_xB_y - A_yB_x)k^

where A_x, A_y, A_z, B_x, B_y, and B_z are the components of vectors A and B in the x, y, and z directions.

Using the given values, we have:

A_x = 4.00, A_y = 6.00, A_z = 0

B_x = 2.00, B_y = -7.00, B_z = 0

Substituting these values into the formula, we get:

A × B = (0)(0) - (0)(0)i^ + (0)(4.00) - (2.00)(0)j^ + (4.00)(-7.00) - (6.00)(2.00)k^

Simplifying, we get:

A × B = -12.00i^ - 22.00j^ - 24.00k^

Therefore, the vector product of A and B is -12.00i^ - 22.00j^ - 24.00k^.

Part B:

The magnitude of the vector product is given by:

|A × B| = √[(A_yB_z - A_zB_y)^2 + (A_zB_x - A_xB_z)^2 + (A_xB_y - A_yB_x)^2]

Substituting the values from Part A, we get:

|A × B| = √[(-6.00)(0) + (0)(2.00) + (4.00)(-7.00 - (-6.00)(-7.00 - (-2.00)(6.00))]

Simplifying, we get:

|A × B| = √(1441)

Therefore, the magnitude of the vector product is √(1441).

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The correlation between the two variables of interest is 0.81, which is significant at the 0.0337 level. This means that there is a strong positive relationship between the variables, and the likelihood of obtaining a correlation of 0.81 or higher due to chance alone is less than 3.37%.

The correlation coefficient measures the strength and direction of the linear relationship between two variables. In this case, the correlation coefficient of 0.81 indicates a strong positive relationship between the variables. The significance level of 0.0337 suggests that the observed correlation is unlikely to occur by chance alone.

It implies that there is evidence to support the conclusion that the correlation is statistically significant and not just a result of random variation. Therefore, the correlation of 0.81 is considered meaningful and reliable in representing the relationship between the variables.


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The answer is −63,868. To get this just put it into a calculator.

To compute the z-value corresponding to x=39, we use the formula for z-score:

z = (x - μ) / σ

where x is the given value, μ is the mean, and σ is the standard deviation of the normal distribution. Substituting the given values, we get:

z = (39 - 53) / 12

z = -1.17

Therefore, the z-value corresponding to x=39 is -1.17.

The z-value is a measure of how many standard deviations a given value is from the mean of the distribution. A positive z-value indicates that the value is above the mean, while a negative z-value indicates that the value is below the mean. In this case, the z-value of -1.17 indicates that the value of x=39 is 1.17 standard deviations below the mean of 53.

This information can be used to make probabilistic statements about the likelihood of observing a value of x=39 or lower in this normal distribution, such as calculating the probability using a standard normal distribution table or software.

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A "heads" flip with a spinning "C" has a 0.125 or 12.5% chance of happening.

The chance of spinning "C" is 1/4, or 0.25, if the spinner is fair and has four parts of equal size.

The chance of flipping "heads" is half, or 0.5, if the coin is fair. We multiply the individual probabilities in order to get the likelihood that both occurrences will occur:

P = (Probability of spinning "C") (Probability of flipping "heads")

P = 0.25 × 0.5

P = 0.125

The probability is 0.125 as a result.

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We can use the distance formula to calculate the distance between the center and the point. This distance is equal to the radius of the sphere. the radius of the sphere that passes through the point (-1, 4, 3) and has center (8, 1, 3) is √90 units.

In this problem, the center of the sphere is given as (8, 1, 3) and the point it passes through is (-1, 4, 3). To find the radius, we need to calculate the distance between these two points.      

Using the distance formula, we get:

√[(8 - (-1))^2 + (1 - 4)^2 + (3 - 3)^2] = √(81 + 9) = √90

Therefore, the radius of the sphere is √90 units.

In summary, to find the radius of a sphere that passes through a given point and has a known center, we can use the distance formula to calculate the distance between the center and the point. In this problem, the radius of the sphere that passes through the point (-1, 4, 3) and has center (8, 1, 3) is √90 units.

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Answer:

4 (g cm³)

Step-by-step explanation:

Volume of a rectangular block (prism) = length X width X height

we have 2 X 3 X 25 = 150 cm³

Formula for density is

density = mass/volume

            = 600/150

            = 4 (g cm³)

To find the partial derivative of the function u = sin(x1 2x2 ⋯ nxn) with respect to xi, where i is an integer between 1 and n, we need to use the chain rule. The answer can be expressed as follows: ∂u/∂xi = cos(x1 2x2 ⋯ nxn) * 2ixi * x1 2x2 ⋯ xi-1 2xi-1 xi+1 2xi+1 ⋯ xn.

To explain further, we start by applying the chain rule to u = sin(x1 2x2 ⋯ nxn) with respect to xi. We treat all the variables except xi as constants, so we get:

∂u/∂xi = cos(x1 2x2 ⋯ nxn) * ∂(x1 2x2 ⋯ nxn)/∂xi

Next, we use the product rule to differentiate x1 2x2 ⋯ nxn with respect to xi. We treat all the variables except xi as constants, so we get:

∂(x1 2x2 ⋯ nxn)/∂xi = 2ixi * x1 2x2 ⋯ xi-1 2xi-1 xi+1 2xi+1 ⋯ xn

Substituting this result back into our original equation, we get:

∂u/∂xi = cos(x1 2x2 ⋯ nxn) * 2ixi * x1 2x2 ⋯ xi-1 2xi-1 xi+1 2xi+1 ⋯ xn

Therefore, the partial derivative of the function u = sin(x1 2x2 ⋯ nxn) with respect to xi is cos(x1 2x2 ⋯ nxn) multiplied by 2ixi multiplied by the product of all the variables except xi in the original function.

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The formula for f(x) is f(x) = -10x^4 + 3x^2 + 4.

How can we find the derivative of both sides of the equation?

We can find the derivative of both sides of the equation using the Fundamental Theorem of Calculus:

d/dx [−2x^5 + x^3 + 4x] = d/dx [∫_0^x f(t) dt]

-10x^4 + 3x^2 + 4 = f(x)

Therefore, the formula for f(x) is:

f(x) = -10x^4 + 3x^2 + 4

We can check that this formula satisfies the original equation by taking the definite integral:

∫_0^x f(t) dt = ∫_0^x (-10t^4 + 3t^2 + 4) dt = [-2t^5 + t^3 + 4t]_0^x = -2x^5 + x^3 + 4x

Thus, the formula for f(x) is f(x) = -10x^4 + 3x^2 + 4.

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Answer: 4 < 5x – 1 < 10  4 < 5x – 3 < 10  4 < 2x + 1 < 10  4 < 2x + 3 < 10

Answer:

Angle PRQ = 28 degrees.

Step-by-step explanation:

Angles P and Q are the same! That's bc this is an isosceles triangle.

The total of all 3 angles = 180. So to find R, subtract the other 2 angles from 180.

So 180-76-76 = 28. That's angle R

The length of EB is approximately 0.099 inches.

To solve this problem, we can use the formula for the volume of a right triangular prism, which is:

V = (1/2)bh × l

where V is the volume, b is the base of the triangle, h is the height of the triangle, and l is the length of the prism.

We are given that the volume of the prism is 19 in^3, so we can plug in that value:

19 = (1/2)(DE)(EF) × EB

Substituting the given values for DE and EF:

19 = (1/2)(16)(24) × EB

Simplifying:

19 = 192 × EB

Dividing both sides by 192:

EB = 19/192

So the length of EB is approximately 0.099 inches.

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From the parallelogram WXYZ, the angle of mWZX will be 68° and angle of XR = XZ = 8x - 18.

Using the properties of parallelograms and the given information, we can solve the parallelogram WXYZ

6. Given:

mXYZ = 68°

mWXZ = 71°

mWZX = ?

In a parallelogram, opposite angles are congruent.

Therefore, mWZX will also be 68°.

7. Given:

XZ = 8x - 18

RZ = 2x + 5,

XR = ?

In a parallelogram, opposite sides are congruent.

That is, XR = XZ

Recall that

XZ = 8x - 18

Substitute XZ with its value:

XR = XZ = 8x - 18

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Based on the graph, the quadratic equation is y = (x - 2)² - 9.

In Mathematics, the vertex form of a quadratic function is represented by the following mathematical equation:

f(x) = a(x - h)² + k

Where:

Based on the information provided about the vertex (2, -9) and the other points (5, 0), we can determine the value of "a" as follows:

y = a(x - h)² + k

0 = a(5 - 2)²  - 9

9 = 9a

a = 1

Therefore, the required quadratic function is given by:

y = a(x - h)² + k

y = (x - 2)² - 9

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The transformation can be represented as:

\begin{bmatrix} x' \ y' \ w' \end{bmatrix} = \begin{bmatrix} 1 & 0 & 7 \ 0 & 1 & 4 \ 0 & 0 & 1 \end{bmatrix} \begin{bmatrix} x \ y \ 1 \end{bmatrix}

where (x', y') is the transformed point, and w' is the homogeneous coordinate (usually taken as 1 for 2D transformations).

In matrix form, the transformation can be written as:

\begin{bmatrix} x' \ y' \ 1 \end{bmatrix} = \begin{bmatrix} 1 & 0 & 7 \ 0 & 1 & 4 \ 0 & 0 & 1 \end{bmatrix} \begin{bmatrix} x \ y \ 1 \end{bmatrix}

So the 3x3 matrix that produces the described transformation is:

\begin{bmatrix} 1 & 0 & 7 \ 0 & 1 & 4 \ 0 & 0 & 1 \end{bmatrix}

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Answer:

x=-1

y=-10

x=-2

y=0

Step-by-step explanation:

we pit why into the first formula, wimplifying it and using the quadratic formula to get the two values for x, we then put the two values into x into the value for y

The amplitude, period, and midline of f(x) = -4 cos(2x - π) + 3 are 4, π and 3.

Given, the function is f(x) = -4 cos(2x - π) + 3 ---- (1)

We have to find the amplitude, period and midline of the function.

The standard form of a cosine function is,

g(x) = a cos(bx + c) + d --- (2)

Where, a is amplitude,

Period is 2π/b

d is midline

Comparing (1) and (2)

a = -4

b = 2

d = 3

Amplitude of the function is a = 4

The period of the function is

2π/b = 2π/2

Period = π

Midline of the function is d = 3

Therefore, the amplitude, period and midline of the function are 4 ,π and 3.

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a) when alpha = 0.01 and n = 10, the critical region (cr) boundary is at x^- ≤^- - 2.76. b) when alpha = 0.05 and n = 10, the cr boundary is at x^- ≤^- - 1.83. c) when alpha = 0.01 and n = 16, the cr boundary is at x^- ≤^- - 2.60. d) when alpha = 0.05 and n = 16, the cr boundary is at x^- ≤^- - 1.74.

In hypothesis testing, the critical region is the set of values of the test statistic that will lead to the rejection of the null hypothesis. The critical region is determined by the level of significance or alpha and the sample size. The level of significance is the probability of rejecting the null hypothesis when it is true. The critical region is located in the tail of the sampling distribution and is determined by the standard deviation and the mean of the sampling distribution.

For scenario a) where alpha is 0.01 and the sample size is 10, the critical region is located at x^- ≤^- - 2.76. This means that if the sample mean falls below this value, the null hypothesis will be rejected. Similarly, for scenario b) where alpha is 0.05 and the sample size is 10, the critical region is located at x^- ≤^- - 1.83. For scenario c) where alpha is 0.01 and the sample size is 16, the critical region is located at x^- ≤^- - 2.60. Finally, for scenario d) where alpha is 0.05 and the sample size is 16, the critical region is located at x^- ≤^- - 1.74.

In summary, the critical region for hypothesis testing is determined by the level of significance and the sample size. The critical region is located in the tail of the sampling distribution and is determined by the standard deviation and the mean of the sampling distribution. The critical region boundaries for different scenarios of alpha and sample size are provided in the answer above.

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To solve the expression (x^2 + 2x - 8)/(x^2 + 3x - 10) * (x + 5)/(x^2 - 16), we can begin by factoring the quadratic expressions in the numerator and denominator of the first fraction:

(x^2 + 2x - 8)/(x^2 + 3x - 10) = ((x + 4)(x - 2))/((x + 5)(x - 2))

Similarly, we can factor the quadratic expression in the denominator of the second fraction:

(x + 5)/(x^2 - 16) = (x + 5)/((x + 4)(x - 4))

Substituting these expressions back into the original expression, we get:

((x + 4)(x - 2))/((x + 5)(x - 2)) * (x + 5)/((x + 4)(x - 4))

We can then cancel out the x - 2 and x + 4 factors in the numerator and denominator:

(x + 5)/(x - 4)

Therefore, the simplified expression is (x + 5)/(x - 4).

The probability of A or B occurring is 0.7.

If A and B are disjoint events, it means they cannot occur at the same time. Therefore, the probability of A or B occurring can be found by adding the probabilities of A and B:

P(A or B) = P(A) + P(B)

However, we need to be careful when adding probabilities of events. If events are not disjoint, we may need to subtract the probability of their intersection to avoid double-counting. But in this case, since A and B are disjoint, their intersection is empty, so we don't need to subtract anything.

Substituting the given values, we have:

P(A or B) = P(A) + P(B) = 0.24 + 0.46 = 0.7

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The exact value of sin(uv) is -44/125. We can use the trigonometric identity sin(uv) = sinucosv - cosusinv to find the value of sin(uv), given sinu and cosv.

From the given information, we have sinu = 3/5 and cosv = -24/25. We can find cosu using the Pythagorean identity:

cos^2 u + sin^2 u = 1

cos^2 u = 1 - sin^2 u = 1 - (3/5)^2 = 16/25

Taking the square root of both sides, we get cos u = ±4/5. However, since sinu is positive, we can conclude that cosu is also positive, and so cosu = 4/5.

Now we can use the sin(uv) identity to find:

sin(uv) = sinucosv - cosusinv

= (3/5)(-24/25) - (4/5)sinv (substituting the given values)

= -72/125 - (4/5)sinv

To find sinv, we can use the Pythagorean identity:

sin^2 v + cos^2 v = 1

sin^2 v = 1 - cos^2 v = 1 - (-24/25)^2 = 49/625

Taking the square root of both sides, we get sinv = ±7/25. However, since cosv is negative, we can conclude that sinv is also negative, and so sinv = -7/25.

Substituting sinv into the expression we found for sin(uv), we get:

sin(uv) = -72/125 - (4/5)(-7/25) = -72/125 + 28/125

= -44/125

Therefore, the exact value of sin(uv) is -44/125.

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The correct answer is b. Cost(k) = a k + b.

Affine gap penalties in sequence alignment involve a linear function that considers the number of gaps in a row. The function typically includes two components: a linear term to represent the initial gap and an additional linear term to account for each consecutive gap.

In option a, the cost function includes a quadratic term (k^2), which does not represent a linear affine penalty.

In option c, the cost function includes a logarithmic term (log(k)), which also does not represent a linear affine penalty.

Option b, with the cost function of a k + b, correctly represents an affine gap penalty, as it includes a linear term (a k) to account for the number of gaps in a row.

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Answer:

Step-by-step explanation:

da pythagross theorem of inert gas momemtum tells us that

let

sinx=n

n and n cancel

six=1

6=1 yeets