Zhenah vult een emmer met 10,8 liter water. De bodem van de emmer is echter lek. Elk uur druppelt er 0,3 liter water uit de emmer. Na hoeveel dagen is de emmer leeg?​

Answer:

x=7/5

Step-by-step explanation:

Answer:

100x = 140 or 100x -140 = 0

Step-by-step explanation:

(80 + 20) = 100 - they both have x so they can be added together

you can either subtract 10 from 150 or 150 from ten to get 140 or -140 depending if you want the equation to be on the left side or spilt

Based on the information, body B will fall 3.3 m in the first 3.0 s after the system is released.

The system of blocks will accelerate at a rate of:

a = (mB g - μk mA g) / (mA + mB)

= (15 kg * 9.8 m/s² - 0.20 * 25 kg * 9.8 m/s²) / (25 kg + 15 kg)

= 2.2 m/s²

Over a time of 3.0 s, body B will fall a distance of:

d = 0.5 * a * t²

= 0.5 * 2.2 m/s² * 3.0 s²

= 3.3 m

Therefore, body B will fall 3.3 m in the first 3.0 s after the system is released.

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The coefficient of kinetic friction between block A and the table is 0.20. Also, mA= 25 kg, mB= 15 kg. How far will body B fall in the first 3.0 s after the system is released?

The partial derivatives of the given function at the point (4, 3, -2) is equal to wₓ(4, 3, -2) = 114 , [tex]w_{y}[/tex](4, 3, -2) = -16 ,  and[tex]w_{z}[/tex](4, 3, -2) = 96.

Function w= 3x²y − 7xyz + 10yz²

and  Point (4, 3, −2)

To find the partial derivatives of the function w = 3x²y - 7xyz + 10yz² with respect to x, y, and z,

Differentiate each term of the function separately and evaluate them at the given point (4, 3, -2).

Partial derivative with respect to x (wₓ).

To find wₓ,

differentiate each term with respect to x while treating y and z as constants.

wₓ = d(3x²y)/dx - d(7xyz)/dx + d(10yz²)/dx

Differentiating each term,

wₓ = 6xy - 7(yz) - 0 since there is no x term in the last term.

Now, substitute the given point (4, 3, -2) into the expression for wₓ.

wₓ(4, 3, -2)

= 6(4)(3) - 7(3)(-2)

= 72 + 42

= 114

Partial derivative with respect to y ([tex]w_{y}[/tex]).

To find [tex]w_{y}[/tex],

differentiate each term with respect to y while treating x and z as constants.

[tex]w_{y}[/tex]= d(3x²y)/dy - d(7xyz)/dy + d(10yz²)/dy

Differentiating each term.

[tex]w_{y}[/tex] = 3x² - 7xz + 20yz

Substitute the given point (4, 3, -2) into the expression for [tex]w_{y}[/tex]

[tex]w_{y}[/tex](4, 3, -2)

= 3(4)² - 7(4)(-2) + 20(3)(-2)

= 48 + 56 - 120

= -16

Partial derivative with respect to z ( [tex]w_{z}[/tex])

To find [tex]w_{z}[/tex], we differentiate each term with respect to z while treating x and y as constants:

[tex]w_{z}[/tex] = d(3x²y)/dz - d(7xyz)/dz + d(10yz²)/dz

Differentiating each term.

since there is no z term in the first term

[tex]w_{z}[/tex] = 0 - 7xy + 20y²

Substitute the given point (4, 3, -2) into the expression for [tex]w_{z}[/tex]

[tex]w_{z}[/tex](4, 3, -2)

= -7(4)(3) + 20(3)²

= -84 + 180

= 96

Therefore, the partial derivatives of the function w = 3x²y - 7xyz + 10yz² at the point (4, 3, -2) are,

wₓ(4, 3, -2) = 114

[tex]w_{y}[/tex](4, 3, -2) = -16

[tex]w_{z}[/tex](4, 3, -2) = 96

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The above question is incomplete , the complete question is:

Find the first partial derivatives with respect to x, y, and z, and evaluate each at the given point.

Function w= 3x²y − 7xyz + 10yz² and  Point (4, 3, −2)                

wₓ(4, 3, −2) =

wy(4, 3, −2) =

wz(4, 3, −2) =

Taring a kitchen scale before weighing an ingredient is essential to obtain accurate measurements by removing the weight of the container, streamlining the process, and ensuring precise and reliable results in culinary preparations.

Taring a kitchen scale before weighing an ingredient is necessary to accurately measure the weight of the ingredient without including the weight of the container or vessel in which it is placed. Taring essentially resets the scale to zero, accounting for the weight of the container so that only the weight of the ingredient being added is measured.

By taring the scale, you eliminate the need to manually subtract the weight of the container from the final measurement. This allows for more precise and efficient measurements in recipes or other culinary applications.

Taring is particularly important when working with small or precise quantities of ingredients, where even a slight variation in weight can significantly impact the final outcome of a dish. It ensures that the weight of the container does not contribute to the measurement, providing accurate and reliable results.

Additionally, taring simplifies the weighing process by eliminating the need to calculate or estimate the weight of the container separately. It saves time and reduces the chances of errors in measurements, promoting consistency and precision in cooking and baking.

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True. Selective distribution is a strategy in which a manufacturer limits the number of outlets at which its product is sold.

This strategy is often used for medium- and higher-priced products or stores that consumers don't expect to find on every street corner. By limiting the availability of the product, the manufacturer can maintain a premium image and prevent price erosion.

In contrast, products that are widely available and low-priced are more likely to be distributed through intensive distribution, in which the manufacturer tries to get the product into as many outlets as possible.

This strategy is effective for products with high turnover rates and where consumers prioritize convenience and accessibility over brand image.

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The differential of the function t = v 8 uvw is "dt = 8vuw dv + 8uvw du + 8uvw dw".

To find the differential of the given function, we differentiate each variable with respect to the others and multiply by the corresponding coefficient. Here, we have three variables, v, u, and w, and the coefficient 8 appears in front of each variable. So, the differential of the function t = v 8 uvw is dt = 8vuw dv + 8uvw du + 8uvw dw. This expression represents the change in t for small changes in v, u, and w.

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If the null hypothesis is true in an ANOVA, the expected value for the F-ratio is close to 1. the F-ratio compares the variability due to treatment effects with the variability due to chance.

This is because the numerator of the F-ratio measures the variability between the sample means, which is expected to be small if the null hypothesis is true. On the other hand, the denominator measures the variability within the samples, which is expected to be larger due to random variation. Therefore, if there is no treatment effect, the numerator and denominator should be similar, resulting in an F-ratio close to 1.

In other words, the F-ratio compares the variability due to treatment effects with the variability due to chance. If the null hypothesis is true, there should be no systematic differences between the groups, and any differences observed are likely due to chance. Hence, the F-ratio should be close to 1, indicating that the treatment has no significant effect on the outcome.

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Answer:

False

Step-by-step explanation:

No we can't find the square root of negative number.

Hope it helped you

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Por lo tanto, la altura del edificio es de 313.6 metros.

Por lo tanto, la velocidad con la que la piedra choca en el suelo es de 78.4 m/s.

Para determinar la altura del edificio y la velocidad de la piedra al chocar en el suelo, necesitamos utilizar las ecuaciones de la caída libre.

a) La altura del edificio se puede calcular utilizando la fórmula de la caída libre:

h = (1/2) * g * t^2

Donde h es la altura del edificio, g es la aceleración debido a la gravedad (aproximadamente 9.8 m/s^2) y t es el tiempo de caída (8 segundos).

Sustituyendo los valores conocidos en la fórmula, obtenemos:

h = (1/2) * 9.8 * (8^2)

h = 1/2 * 9.8 * 64

h = 313.6 metros

b) La velocidad con la que la piedra choca en el suelo se puede calcular utilizando la fórmula de la velocidad en caída libre:

v = g * t

Donde v es la velocidad, g es la aceleración debido a la gravedad (9.8 m/s^2) y t es el tiempo de caída (8 segundos).

Sustituyendo los valores conocidos en la fórmula, obtenemos:

v = 9.8 * 8

v = 78.4 m/s

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We will use Green's theorem, which states that for a vector field F = (F1, F2) with continuous partial derivatives on a simply connected region R bounded by a piecewise smooth, simple, closed curve C, we have:

∮C F · dr = ∬R (∂F2/∂x - ∂F1/∂y) dA

where dr is a differential element of arc length on C, and dA is a differential element of area in R.

In this case, we have F = (−g, f) = (−7y^2, 12x^2), and C consists of two pieces: the upper half of the unit circle, denoted by C1, and the line segment from (−1,0) to (1,0), denoted by C2.

We can parameterize C1 by x = cos(t), y = sin(t) for t in [0,π], and C2 by x = t, y = 0 for t in [−1,1]. Using these parameterizations, we can write the line integral as:

∮C F · dr = ∫C1 F · dr + ∫C2 F · dr

For the first integral, we have:

∫C1 F · dr = ∫0π (−7sin^2(t), 12cos^2(t)) · (−sin(t), cos(t)) dt

= ∫0π 7sin^3(t) - 12cos^3(t) dt

We can evaluate this integral using trigonometric identities to get:

∫C1 F · dr = 7/3 - 12/3 = -5/3

For the second antiderivative,  we have:

∫C2 F · dr = ∫−1^1 (−7(0)^2, 12t^2) · (1, 0) dt

= 0

Therefore, the line integral over C is:

∮C F · dr = ∫C1 F · dr + ∫C2 F · dr = -5/3 + 0 = -5/3

So the value of the line integral is -5/3.

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Answer:

1 inch

Step-by-step explanation:

Volume of cylinder = π r ² h

18.8 = π r ² (6)

r² = (18.8) / (6π)

r = 1 inch to nearest inch

Answer:

sin I = 3/5

Step-by-step explanation:

sin I = perpendicular/hypotenuse

      = 18/30

      = 9/15

      = 3/5

To determine whether the triangle with vertices P(2, -1, -1), Q(3, 2, -3), and R(7, 0, -4) is right-angled, we can use vectors.

First, we calculate the vectors formed by the sides of the triangle:

Vector PQ = Q - P = (3, 2, -3) - (2, -1, -1) = (1, 3, -2)
Vector PR = R - P = (7, 0, -4) - (2, -1, -1) = (5, 1, -3)

Next, we take the dot product of these two vectors:

PQ · PR = (1, 3, -2) · (5, 1, -3) = 1 * 5 + 3 * 1 + (-2) * (-3) = 5 + 3 + 6 = 14

If the dot product is zero, then the two vectors are perpendicular, indicating that the triangle is right-angled.

In this case, since PQ · PR = 14 ≠ 0, the triangle with vertices P, Q, and R is not right-angled.

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The probability that 8 vehicles arrive in the given 2-minute interval is approximately 0.065.

The problem involves a Poisson process, where the average rate of vehicle arrival is given as 10 vehicles per minute. We are required to find the probability that 8 vehicles arrive in a given 2-minute interval.

We know that the Poisson distribution can be used to model the number of events that occur in a fixed interval of time, given the average rate of occurrence. The Poisson distribution is given by P(X = k) = e^(-λ) * (λ^k) / k!, where λ is the average rate of occurrence and k is the number of events that occur in the given interval of time.

In this case, the average rate of vehicle arrival is λ = 10 vehicles per minute, and the given interval of time is 2 minutes. Therefore, we can use the Poisson distribution formula to find the probability that 8 vehicles arrive in this interval. P(X = 8) = e^(-20) * (20^8) / 8! ≈ 0.065.

Therefore, the probability that 8 vehicles arrive in the given 2-minute interval is approximately 0.065.

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The error in using s10 as an approximation to the sum of the series is less than or equal to 2.79892 × 10^-5.

The given series is a p-series with p = 5, which means it converges if and only if p > 1. Therefore, the series converges.

To find the tenth partial sum, we need to add up the first ten terms of the series:

s10 = 1/1^5 + 1/2^5 + 1/3^5 + ... + 1/10^5

Using a calculator or computer, we get:

s10 ≈ 1.036393

To estimate the error in using s10 as an approximation to the sum of the series, we need to find the remainder term R10:

R10 = ∑ from n=11 to infinity of (1/n^5)

Since we cannot find the exact value of this infinite series, we can use an estimation method such as the integral test:

∫ from 11 to infinity of (1/x^5) dx = [-1/4x^4] from 11 to infinity = 1/4(11^4)

Therefore, we have:

R10 ≤ ∫ from 11 to infinity of (1/x^5) dx = 1/4(11^4) ≈ 2.79892 × 10^-5

So the error in using s10 as an approximation to the sum of the series is less than or equal to 2.79892 × 10^-5.

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The rounding up of the numbers indicates that the sum and differences of the numbers are;

Rounding up of numbers is an estimation method used to provide values that have a particular degree of accuracy.

The sums and difference of the integers obtained using the prescribed method are as follows;

1) 28 + 53 ⇒ 30 + 50 = 80

2) 58 + 31 ⇒ 60 + 30 = 90

3) 73 + 45 ⇒ 70 + 50 = 120

4) 37 + 44 ⇒ 40 + 40 = 80

5) 66 - 21 ⇒ 70 - 20 = 50

6) 53 - 50 ⇒ 50 - 50 = 0

7) 51 - 16 ⇒ 50 - 20 = 30

8) 20 - 11 ⇒ 20 - 10 = 10

9) 86 + 6 ⇒ 90 + 10 = 100

10) 94 + 87 ⇒ 90 + 90 = 180

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there are infinitely many pairs of positive numbers that satisfy the condition that their product is 384. Examples include (384, 1), (192, 2), (96, 4), and so on.

To find two positive numbers subject to the condition that their product is 384, we can set up an equation and solve for the unknowns.

Let's assume the two numbers are x and y. According to the given condition, their product is 384:

xy = 384

To find the values of x and y, we can use various methods such as substitution or factoring. In this case, we'll use substitution.

We can solve the equation for one variable in terms of the other. Solving for x, we have:

x = 384/y

Now we substitute this value of x into the other equation:

(384/y) * y = 384

Simplifying the equation:

384 = 384

This equation is true for any value of y, as long as it is a positive number. Therefore, y can take any positive value.

To find the corresponding value of x, we substitute the value of y back into the equation x = 384/y:

x = 384/y

For example, if we choose y = 1, then x = 384/1 = 384. Similarly, if we choose y = 2, then x = 384/2 = 192. We can find various pairs of positive numbers that satisfy the condition.

In summary, there are infinitely many pairs of positive numbers that satisfy the condition that their product is 384. Examples include (384, 1), (192, 2), (96, 4), and so on.

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To approximate sin1 correct to four decimal places using the Maclaurin series, we need to determine the number of initial terms needed such that the absolute value of the error term is less than or equal to 0.0001.

The Maclaurin series for sinx is given by:

sin x = x - (x^3)/3! + (x^5)/5! - (x^7)/7! + ...

To find the error term, we can use the alternating series estimation theorem, which states that the error between the actual value and the approximation using an alternating series is less than or equal to the absolute value of the next term in the series.

So for sin1, we want to find the number of initial terms n such that:

|(1^(2n+1))/(2n+1)!| <= 0.0001

Solving for n using a calculator or computer software, we get n = 5. Therefore, we need at least 6 initial terms of the Maclaurin series for sinx to approximate sin1 correct to four decimal places.

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The domain of the function is all real numbers and  range of the function is (0, 2]

To graph the function y = 2(1/2)ˣ, we can create a table of values and plot the points on the coordinate plane:

x y

-3 16

-2 8

-1 4

0 2

1 1

The graph of the function looks like a decreasing exponential function, starting at (0,2) and approaching the x-axis as x approaches infinity.

The domain of the function is all real numbers, since any real number can be plugged in for x.

The range of the function is (0, 2], since 0 < y ≤ 2 for all x.

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There are 48 ways for the driver to load the shipment so that one of the heavier vehicles is directly over the rear axle of the trailer.

In order for one of the heavier vehicles to be directly over the rear axle of the trailer, there are only two options: either the station wagon or the minivan can be in that position. Therefore, we can consider the problem as two separate cases:

Case 1: Station wagon over the rear axle
In this case, we have four vehicles remaining to be loaded onto the trailer: three compact cars and the minivan. The order in which they are loaded onto the trailer does not matter, since the station wagon's position is fixed. Therefore, the number of ways to load the remaining vehicles is simply the number of permutations of 4 items, which is 4! = 24.

Case 2: Minivan over the rear axle
This case is identical to the first case, except that the station wagon is replaced by the minivan. Therefore, the number of ways to load the remaining vehicles is again 4! = 24.

Total number of ways:
Since the two cases are mutually exclusive, we can simply add the number of ways from each case to get the total number of ways:
24 + 24 = 48

Therefore, there are 48 ways for the driver to load the shipment so that one of the heavier vehicles is directly over the rear axle of the trailer.

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Mr. Simpson's class; it has a larger median value 14.5 pencils.

The box plot for Mr. Johnson's class has a box that extends from 8 to 14, with a median line at 11. The whiskers extend to 7 and 45 on the number line. This indicates that the spread of the data is relatively wide, with some students losing as few as 5 pencils and others losing as many as 45.

The box plot for Mr. Simpson's class has a box that extends from 12 to 21, with a median line at 14.5. The whiskers extend to 0 and 50 on the number line. This indicates that the spread of the data is also relatively wide, with some students losing as few as 0 pencils and others losing as many as 50.

Therefore, we can see that Mr. Simpson's class has a higher median value of 14.5 pencils, indicating that, on average, the students in his class lose more pencils than those in Mr. Johnson's class. Thus, based on the given data, Mr. Simpson's class lost the most pencils overall.

So the answer is: Mr. Simpson's class; it has a larger median value 14.5 pencils.

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We need to round our answer to the nearest person, the number of people who purchased snowboards on the day before data collection is approximately 223. Therefore, the correct answer is not provided among the options.

To determine the number of people who purchased snowboards the day before the manager started collecting data, we need to work backwards from the information given.

Let's assume the number of people who purchased snowboards on the day before data collection started is represented by "X."

From the given data, we know that on Day 5, there was a 12% increase in the number of people who bought snowboards compared to the previous day. So, if X represents the number of people who bought snowboards on the day before data collection, we can calculate the number of people who bought snowboards on Day 5 as follows:

X + (12% of X) = 250

Converting 12% to a decimal, we have:

X + (0.12X) = 250

Combining like terms:

1.12X = 250

Now, we can solve for X:

X = 250 / 1.12 ≈ 223.21

Since we need to round our answer to the nearest person, the number of people who purchased snowboards on the day before data collection is approximately 223.

Therefore, the correct answer is not provided among the options.

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1. The final amount is $936 and the simple interest is $216.

Simple interest is the amount of interest charged on a specific principal amount at a specific interest rate. Compound interest, on the other hand, is the interest that is computed using both the principal and the interest that has accumulated over the preceding period.

1. Using the formula for simple interest:

Simple Interest = (Principal * Rate * Time)

Where:

Principal = $720

Rate = 6% = 0.06

Time = 5 years

Simple Interest = ($720 * 0.06 * 5) = $216

To find the final amount, we can add the simple interest to the principal:

Final Amount = Principal + Simple Interest = $720 + $216 = $936

Therefore, the final amount is $936 and the simple interest is $216.

Similarly,

2. The simple interest for a principal of $720, an interest rate of 6%, and a time period of 5 months is $18.

3. The simple interest for a principal of $720, an interest rate of 6%, and a time period of 5 days is $0.59.

4. Simple Interest is $506.11 and the Final Amount is $6,398.26.

5. The simple interest is $593.19 and the final amount is $27,561.63.

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Answer:

(12 - 2 √22) ft

Step-by-step explanation:

by Pythagoras' Theorem:

in right-angled triangle, the square of the hypotenuse will equal the sum of the squares of the other two sides.

call the ladder L, call the distance of bottom of ladder from bottom of wall G, call the vertical height of the wall where the top of ladder meets it H.

we have L² = G² + H²

H² = L² - G²

   = 13² - 5²

   = 169 - 25

   = 144

H = √144 = 12.

the ladder is opposite the right-angle, ie it's the hypotenuse.

the ladder is 5ft from the wall.

if bottom of ladder is pulled out 4ft more, this reduces the height H.

the length of ladder L remains the same (can't compress a ladder)

G, the floor distance, is now 5 + 4 = 9ft

H² = L² - G²

    = 169 - 9²

    = 169 - 81

    = 88

H = √88

   = √(4 X 22)

   = √4 X √22

   = 2√22

The vertical height, H, was 12 ft.  it's now 2 √22

so it has moved down the wall (12 - 2 √22) ft.

Answer:

Step-by-step explanation:

ƒ(5)= -4(5)²+7(5)

ƒ(5)= -100+35

ƒ(5)= -65

[tex]\frac{f(5)}{5}[/tex]=[tex]\frac{65}{5}[/tex]

ƒ=13

The lines that have an x-intercept of (3,0) and a y-intercept of (0,-4) are:

y = 4/3x - 4

y + 4 = 4/3(x - 3)

To find a line with a given x-intercept and y-intercept, we can use the slope-intercept form of a line, which is:

y = mx + b

where m is the slope of the line, and b is the y-intercept (the y-coordinate where the line intersects the y-axis).

Both of these lines pass through points (3,0) and (0,-4), so they have the desired x- and y-intercepts.

The other lines do not pass through both of these points

y = -4/3x - 4 does not pass through (3,0)

y = 3x - 4 does not pass through (0,-4)

Y=4/3(x-3) does not pass through (0,-4)

y+4=4/3x does not pass through (3,0)

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From the data of the number of meters swam by students, range is the best measure of variability and equals 600

The domain of a function is the set of values that we are allowed to plug into our function. This set is the x values in a function such as f(x). The range of a function is the set of values that the function assumes. This set is the values that the function shoots out after we plug an x value in.

The range is the set of outputs of a relation or function. In other words, it's the set of possible y values. Recall that ordered pairs are of the form (x,y) so the y coordinate is listed after the x. The output is listed after the input.

Given data,

Let the data set be represented as A

Now, the value of A is

A = { 200, 450, 600, 650, 700, 800 }

The appropriate measure of variability for the given data is the range. The range is the difference between the largest and smallest values in the data set.

And, range = 800 - 200

R = 600

Hence, the range of the data set is R = 600

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The correct statement regarding the domain of the function is given as follows:

The domain of (f/g)(x) = x³/(x² - 4) is all real numbers except x = -2 and x = 2.

The function for this problem is given as follows:

(f/g)(x) = x³/(x² - 4)

The values that are outside the domain are the values of x for which the denominator is of zero, hence:

x² - 4 = 0

x² = 4

[tex]x = \pm \sqrt{4}[/tex]

[tex]x = \pm 2[/tex]

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a) p(x=2) = 0.25

b) E(X) = 2.15

a) To find p(x=2), we simply look at the probability distribution table and find the probability associated with x=2. In this case, we see that the probability associated with x=2 is missing, but we know that the sum of all probabilities must equal 1. Thus, we can solve for p(x=2) by subtracting the sum of the probabilities associated with x=0, x=1, x=3, and x=4 from 1. This gives us:

p(x=2) = 1 - 0.1 - 0.4 - 0.15 - 0.1

p(x=2) = 0.25

b) To find E(X), we use the formula:

E(X) = Σ[x * p(x)]

where Σ is the summation symbol, x is the value of the random variable, and p(x) is the probability associated with that value. Applying this formula to the probability distribution given, we have:

E(X) = 0(0.1) + 1(0.4) + 2(p(x=2)) + 3(0.15) + 4(0.1)

E(X) = 0.4 + 0.3 + 0.15 + 0.4

E(X) = 2.15

Therefore, the expected value of X is 2.15.

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