the number of accidents in a certain city is modeled by a poisson random variable with average rate of 10 accidents per day. suppose that the number of accidents in different days are independent. find the approximate probability that there will be more than 3800 accidents in a certain year. assume that there are 365 days in a year.

Closest to the side length (in inches) of the cube if its mass is 80 ounces is any side as the cube has equal sides. So The side length of the cube is approximately 4.3 inches.

To solve the problem, we can use the formula for density:

Density = Mass / Volume

We are given the density (3 ounces per cubic inch) and the mass (80 ounces), so we can rearrange the formula to solve for the volume:

Volume = Mass / Density

Volume = 80 / 3

Volume = 26.67 cubic inches

Since the cube is a regular solid, all of its sides are equal in length. Therefore, we can use the formula for the volume of a cube to solve for the side length:

Volume = Side length³

26.67 = Side length³

Side length ≈ 4.3 inches (rounded to one decimal place)

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To find a formula for h'(x), the derivative of h(x), we need to consider the two parts of the piece-wise function separately.

1. For x > 2:

In this case, h(x) = (x - 2) + x - 5.

To find h'(x), we can differentiate each term separately:

h'(x) = (d/dx)(x - 2) + (d/dx)(x - 5)

Since the derivative of a constant is zero, we have:

h'(x) = 1 + 1 = 2

So, for x > 2, h'(x) = 2.

2. For x < 2:

In this case, h(x) = |x| = -x.

The derivative of -x is simply -1:

h'(x) = -1

So, for x < 2, h'(x) = -1.

Note: At x = 2, the function h(x) has a corner or "kink" due to the absolute value function. The left and right derivatives are not equal, so h(a) is not differentiable at x = 2. Therefore, we cannot find a formula for h'(x) at x = 2.

In summary, the formula for h'(x) is:

h'(x) =

 2    if x > 2

-1    if x < 2

At x = 2, h(a) is not differentiable.

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The area of the parallelogram is |AB x BC| = sqrt(3088) square units. To verify that the given points are the vertices of a parallelogram, we need to check if the opposite sides are parallel.

Using vector notation, we can find the vectors AB, BC, CD, and DA as follows:
AB = < -2, 8, -6 >
BC = < 2, 3, -7 >
CD = < 2, -8, 6 >
DA = < -2, -8, 6 >
We can see that AB is parallel to CD, and BC is parallel to DA, since they have the same direction (but possibly different magnitudes). Therefore, the given points are the vertices of a parallelogram.
To find the area of the parallelogram, we can use the cross-product of AB and BC (or CD and DA, since they have the same magnitude and direction):
AB x BC = < -54, 8, 28 >
|AB x BC| = sqrt(54^2 + 8^2 + 28^2) = sqrt(3088)
Therefore, the area of the parallelogram is |AB x BC| = sqrt(3088) square units.

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Based on the given residual plot, it is essential to evaluate whether the linear model is a good fit for predicting the cost of a standard postage stamp.

A well-fitted linear model should display a random scatter of residuals, without any noticeable patterns or trends.

To determine if the model is a good fit, examine the residual plot for the following:

1. A random distribution of residuals around the horizontal axis (i.e., no discernible patterns or trends).

2. A constant spread of residuals throughout the entire range of predictor values (i.e., homoscedasticity). If these conditions are met in the residual plot, then the linear model is likely a good fit for the data. If not, a different model should be considered for better prediction accuracy.

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When converting a larger unit to a smaller one, we multiply; when we convert a smaller unit to a larger one, we divide

The built-in functions for multiply, divide, and subtract can also be used to specify arithmetic operations.

If we need to go from a bigger to a smaller unit, multiply. If we need to get from a smaller to a larger unit, we should divide. We will do so since division is all about bringing down numbers, as we well know.

As a result, we multiply when translating a larger unit to a smaller one and divide when converting a smaller unit to a larger one.

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For some married couples, retirement alters the longstanding distribution of roles and responsibilities within their relationship.

This is because retirement often marks a significant transition in the couple's lives, where they move from a structured work routine to a more flexible and unstructured lifestyle. This can lead to changes in the way each partner contributes to the household, both financially and domestically. For instance, one partner may have been the primary breadwinner during their working years, while the other took care of the home and children. However, when retirement comes around, the roles may shift, and the other partner may become more financially responsible, or they may take on a more active role in household chores and caregiving. In some cases, both partners may retire at the same time, which can further disrupt the established distribution of roles and responsibilities. Retirement can also bring about changes in the couple's social dynamics. For example, one partner may be more inclined to socialize and attend events, while the other may prefer to stay at home. This can create a mismatch in expectations and can lead to feelings of isolation or resentment. In conclusion, retirement can have a profound impact on a married couple's relationship. It can lead to changes in the distribution of roles and responsibilities, as well as in social dynamics. It is important for couples to communicate openly and honestly about their expectations and to work together to navigate these changes successfully.

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True. A corner offset is a bend that consists of two offsets turned at a 45-degree angle from each other.

This type of bend is commonly used in plumbing and electrical installations to change the direction of pipes or conduit around corners while maintaining a constant flow of materials. Corner offsets can be made using various tools and techniques, including hand benders, hydraulic benders, or mechanical benders, depending on the specific requirements of the job.

It's important to follow safety guidelines and use appropriate protective gear when performing any bending or installation work to avoid accidents and ensure high-quality results.

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The solution to the given initial-value problem is y(t) = 1/4 e^(4t) - 1/8 e^(-4t) + 1/4 sec 2t - 1/8 tan 2t - 3/2.

To find the solution to the given initial-value problem, we first need to solve the associated homogeneous equation, which is y" - 8y" + 4y' - 32y = 0. The fundamental set of solutions for this equation is given by the functions yi(t) = eat, where a is a constant.

Next, we need to find a particular solution to the non-homogeneous equation y" - 8y" + 4y' - 32y = sec 2t. We can use the method of undetermined coefficients and assume that the particular solution has the form Yp(t) = A sec 2t + B tan 2t. By substituting this into the equation and solving for the coefficients A and B, we obtain Yp(t) = 1/4 sec 2t - 1/8 tan 2t.

The general solution to the non-homogeneous equation is then given by y(t) = c1y1(t) + c2y2(t) + Yp(t), where c1 and c2 are constants determined by the initial conditions. Plugging in y(0) = 2 and y'(0) = 7, we can solve for c1 and c2 and obtain y(t) = 1/4 e^(4t) - 1/8 e^(-4t) + 1/4 sec 2t - 1/8 tan 2t - 3/2.

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22  roofs trusses would be needed to frame the roof if the ridgeline runs parallel to the longest side of the shed

The longest side of the roof is 28ft

Each roof is 16 inches apart

S0 28×12/16

We get 21

It means that there are 21 aparts for the roof trusses

So there are 21+1 =22 roof trusses are needed

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The inequality that represents the number of houses that the kids will go on Halloween is given as follows:

n > 100.

The four inequality symbols, along with their meaning on the number line and the coordinate plane, are presented as follows:

The inequality that represents more than 100 houses on Halloween is given as follows:

n > 100.

The problem asks for the inequality that models the situation.

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The value for x is 6.

We are given that area of a rectangle is 24 and the length and breadth are (x + 2) and (2x - 9).

Area of a rectangle = length * width

Substituting the values, we get

24 = (x+2) (2x-9)

24 =  [tex]2x^2-5x-18[/tex]

[tex]2x^2-5x-42 = 0[/tex]

0 = (2x+7) (x-6)

0 = (2x+7)   or   0 = (x-6)

x = -7/2  or  x = 6

if we consider the value of x as -7/2 and substitute this value of x in the equation of the side of a rectangle (x + 2), we get -7/2 + 2 = -3/2 and a side cannot be negative. Therefore, we will reject this value of x.

Therefore, our answer is 6.

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The complete question is "Find the value for x.

Area of the rectangle =  24 m^2 and the length and breadth are (2x -9) m

and (x + 2) m."

The limit of the series M is infinity, Using the Root Test, we can say that the series is convergent, To determine whether the series is absolutely convergent, conditionally convergent, or divergent, we need to look at the individual terms of the series.

Since the series M contains both positive and negative terms, we need to consider both the series of positive terms and the series of negative terms separately, The series of positive terms is 3 + 4 + 3 + ... which is clearly divergent since it is an increasing sequence that goes to infinity.

The series of negative terms is -4 - 3 - 4 - 3 - ... which is also divergent for the same reason, Since neither the series of positive terms nor the series of negative terms is convergent, the original series M is divergent. Therefore, we can say that the series M is divergent, The series M consists of three terms: 3 + 4 + 3.

Since the series M is a finite series, it is absolutely convergent. It is not conditionally convergent or divergent, as those terms only apply to infinite series.

Answer:
1. Limit: DNE (Does Not Exist)
2. Root Test: Inconclusive
3. Series Type: Absolutely Convergent

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Answer:

The maximum possible length of the pencil is 55 centimeters (cm).

Step-by-step explanation:

We know that the Pythagorean Theorem states that a² + b² = c² in a right triangle.

a = the altitude (the vertical line of a right triangle)

b= the base (the horizontal line of a right triangle)

c= the hypotenuse (the diagonal line of a right triangle)

1. substitute 33 for a and 44 for b  

33² + 44² = c²

2. simplify the expression

1089 + 1936 = c²

3. combine like terms

3025 = c²

4. square root both sides

√3025 = √c²

55 = c

c = 55

This means that the maximum possible length of the pencil is 55 centimeters (cm).

To find the integral of √(25 - x²) from of limits x = 0 to x = 5, the integral of √(25 - x²) from x = 0 to x = 5 is 25π/4.

To find the integral of √(25 - x²) from x = 0 to x = 5, we can use trigonometric substitution. Let x = 5sinθ, then dx = 5cosθdθ.

When x = 0, θ = 0, and when x = 5, θ = π/2. Substituting these limits, we get:

∫[0,5] √(25 - x²) dx = ∫[0,π/2] √(25 - 25sin²θ) (5cosθ) dθ

= 25 ∫[0,π/2] cos²θ dθ

Using the identity cos²θ = (1 + cos2θ)/2, we get:

25 ∫[0,π/2] cos²θ dθ = 25/2 ∫[0,π/2] (1 + cos2θ) dθ

= 25/2 [θ + (sin2θ)/2] [0,π/2]

= 25/2 [(π/2) + (sinπ)/2 - (0 + sin0)/2]

= 25π/4

Therefore, the integral of √(25 - x²) from x = 0 to x = 5 is 25π/4.

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The answer to the first question is a. Nominal. The answer to the second and third questions are option a  -1.31 cm and  option a 87.5%, respectively

To compute the sum of squares, we need the mean of the data.

x: 2, 4, 6, 8, 10, 12, 18, 21

y: 3, 5, 8, 6, 8, 15, 10, 12

Mean of x = (2+4+6+8+10+12+18+21)/8 = 9.375

Mean of y = (3+5+8+6+8+15+10+12)/8 = 8.5

SSE = Σ(yi - ŷi)²

= (3 - 8.525)² + (5 - 9.002)² + (8 - 11.48)² + (6 - 10.336)²

+ (8 - 11.48)² + (15 - 19.556)² + (10 - 12.962)² + (12 - 15.898)²

= 127.98

The residual is given by:

residual = observed y value - predicted y value

= 29 - (10.9 + 0.23*73)

= -1.31 cm

The proportion of variation explained by x is:

R² = 1 - (SSE/SSTO) = 1 - (10.7/85.2) = 0.875 or 87.5% (approx.)

The answer to the first question is a, the second and third questions are option a and option a respectively.

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The derivative dz/dt can be found using the chain rule. By differentiating each term with respect to t and applying the chain rule, we can calculate dz/dt as follows:

[tex]dz/dt = 2sin(t)cos(t) + 4e^tcos(t) + 4e^tsin(t) + 4e^t + 4sin(t)e^t.[/tex]

By applying the chain rule, we can find dz/dt as follows: differentiate z with respect to x, then multiply it by dx/dt, and finally differentiate z with respect to y and multiply it by dy/dt.

The function z = x² + y² + xy can be rewritten as z = (sin(t))² + (4e^t)² + (sin(t))[tex](4e^t)[/tex].

To find dz/dt, we need to find the partial derivatives of z with respect to x and y and multiply them by dx/dt and dy/dt, respectively.

The partial derivative of z with respect to x is (2x + y), and the partial derivative of z with respect to y is (2y + x).

Next, we differentiate x = sin(t) with respect to t, giving us dx/dt = cos(t).

Similarly, differentiating[tex]y = 4e^t[/tex] with respect to t yields [tex]dy/dt = 4e^t.[/tex]

Now we can apply the chain rule:

dz/dt = (2x + y) * dx/dt + (2y + x) * dy/dt

Substituting the expressions for x, y, dx/dt, and dy/dt:

[tex]dz/dt = (2sin(t) + 4e^t) * cos(t) + (2(4e^t) + sin(t)) * (4e^t)[/tex]

Simplifying this expression will yield the final result.

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The area of the regular polygon with the given radius is equal to 10√2 cm².

In Mathematics and Geometry, the area of a regular polygon can be calculated by using this formula:

Area = (n × s × a)/2

Where:

Note: The apothem of a regular polygon is half the length of one side.

Additionally, the length of the diagonal of this regular polygon (square) would be twice the radius:

2r = 2 × 10 = 20 cm.

By applying Pythagorean's theorem to one of the right triangles with the diagonal of the regular polygon (square) being the hypotenuse of the triangle, we have;

x² + x² = 20²

2x² = 400

x = √200

x = 10√2 cm²

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We don't have enough data to provide specific values in this situation for the population mean and standard error.

However, using the 52% probability provided, you can now discover the two values that are symmetrically distributed around the population mean using the Z-score of 0.75 and the standard error.

To determine the two values symmetrically distributed around the population mean, we need to use the concept of a confidence interval.

Given a probability of 52%, we can calculate the confidence interval as follows:
Convert the probability to a confidence level: 100% - 52% = 48%.

So, we have a 48% confidence level.
Divide the remaining probability by 2 to find the percentage of values in each tail: (100% - 48%) / 2 = 26%.

This means 26% of the values lie in each tail.
Use a Z-table or online calculator to find the corresponding Z-score for 26%.

The Z-score represents the number of standard deviations away from the mean. In this case, the Z-score is approximately ±0.75.
Apply the Z-score to the standard error formula:
  Confidence interval = population mean ± (Z-score * standard error)
However, we don't have enough information about the population mean and standard error to provide the exact values in this case.

But with the given probability of 52%, you can now use the Z-score of ±0.75 and the standard error to find the two values symmetrically distributed around the population mean.

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f is increasing on the interval (0,6). To find the interval(s) on which f is increasing, we need to find the derivative of f and determine where it is positive.

f'(x) = 6x^5e^-x - x^6e^-x = x^5e^-x(6-x)
Now, we need to determine when f'(x) > 0.
x^5e^-x(6-x) > 0
x^5 is always positive, so we just need to consider e^-x(6-x).
When x < 0, e^-x is positive and (6-x) is negative, so the product is negative.
When 0 < x < 6, both e^-x and (6-x) are positive, so the product is positive.
When x > 6, e^-x is very small and (6-x) is negative, so the product is negative.
Therefore, f is increasing on the interval (0,6).

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The total number of possible ways to create a license plate with 2 letters followed by 3 numbers if no repetition is 4,680,00.

To calculate the number of ways to create a license plate with 2 letters followed by 3 numbers, we need to consider two separate parts: the number of ways to choose the two letters, and the number of ways to choose the three numbers. Since no repetition is allowed, we have to take this into account in both parts.

For the first part, we have 26 choices for the first letter and 25 choices for the second letter, since we cannot choose the same letter twice.

For the second part, we have 10 choices for each of the three numbers. Again, we cannot choose the same number twice, so we have to decrease the number of choices by 1 for each subsequent number.

Thus, the total number of ways to create a license plate with 2 letters followed by 3 numbers is:

26 x 25 x 10 x 9 x 8 = 468,000

If no repetition of characters is allowed, then the number of possible ways to create a license plate with 2 letters followed by 3 numbers can be calculated as follows:

There are 26 choices for the first letter (A-Z).

There are 25 choices for the second letter (since no repetition is allowed).

There are 10 choices for the first number (0-9).

There are 9 choices for the second number (since no repetition is allowed).

There are 8 choices for the third number (since no repetition is allowed).

Therefore, the total number of possible ways to create a license plate with 2 letters followed by 3 numbers if no repetition is allowed is:

26 x 25 x 10 x 9 x 8 = 4,680,00

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Answer:

Fixed:

Rent

Car insurance

Car payment

Step-by-step explanation:

This is because they are not variable in the question and only give one value

Answer:

-4.3

Step-by-step explanation:

1. Simplify the expression

-3.1+-4.9--2.7--0.2--0.8

Calculate any addition or subtraction, from left to right.

-3.1+-4.9--2.7--0.2--0.8

-3.1-4.9--2.7--0.2--0.8

-8--2.7--0.2--0.8

-8+2.7--0.2--0.8

-5.3--0.2--0.8

-5.3+0.2--0.8

-5.1--0.8

-5.1+0.8

-4.3

The equation of the tangent plane to the given surface at the specified point is z = 10x + 8y + 6.

To find an equation of the tangent plane to the given surface at the specified point (2, -2, 13), we need to first take partial derivatives of the given function.

Taking partial derivatives with respect to x and y, we get:

∂z/∂x = 10(x-1)

∂z/∂y = 8(y+3)

Next, we plug in the given point (2, -2, 13) into the partial derivatives to find the slope of the tangent plane:

∂z/∂x = 10(2-1) = 10

∂z/∂y = 8(-2+3) = 8

So the slope of the tangent plane at the given point is (10, 8).

Now we need to find the intercept of the tangent plane by plugging in the point (2, -2, 13) into the original function:

z = 5(2-1)^2 + 4(-2+3)^2 + 4 = 13

Therefore, the equation of the tangent plane is:

10(x-2) + 8(y+2) = z-13

Or rearranging,

10x + 8y - z = -6

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The fraction of total hemispherical emissive power leaving a diffuse surface in the directions π/4 < θ ≤ π/2 and 0 < φ ≤ π is 1/8.

To determine this, recall that diffuse surfaces emit energy equally in all directions. The solid angle for a hemisphere is given by Ω = 2π, and the range for θ is π/4 to π/2, making the difference Δθ = π/4.

The range for φ is from 0 to π, so Δφ = π. The fraction of the total hemispherical emissive power is calculated by the ratio of the solid angle in the specified range to the total solid angle for a hemisphere:

Fraction = (Δθ * Δφ) / Ω = (π/4 * π) / 2π = π²/8π = 1/8

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(a) Experiment
(b) Number of rows: 304 (109 dyslexia group + 195 control group)
Number of columns: 2 (gene break, no break)
(c)

Gene breakNo breakTotal
Dyslexia group 10 99 109
Control group 5 190 195
Total 15 289 304

(d) Proportion for dyslexia group: 0.092
Proportion for control group: 0.017
(e) Yes, there appears to be an association between this genetic marker and dyslexia for the people in this sample.
(f) No, we cannot assume that the gene disruption causes dyslexia solely based on this study. Further research and experimentation would be needed to establish a causal relationship.
(a) This is an observational study.

(b) Number of rows: 2
Number of columns: 2

(c) Two-way table:

|                | Gene break | No break | Total |
|----------------|------------|----------|-------|
| Dyslexia group | 10         | 99       | 109   |
| Control group  | 5          | 190      | 195   |
| Total          | 15         | 289      | 304   |

(d) Proportion for dyslexia group: 10/109 = 0.092
Proportion for control group: 5/195 = 0.026

(e) Yes, there appears to be an association between this genetic marker and dyslexia for the people in this sample.

(f) No, even if the association appears to be strong, we cannot assume that the gene disruption causes dyslexia.

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The number of adults that bought the tickets is 176 and the number of students that bought the tickets is 108 if total tickets were sold out for two days for a theater that has a capacity of 142 people and the total sales were $1,948,

Let the number of adults that bought the tickets = x

the number of children that bought the tickets = y

If the capacity of the theater is 142, for sold out on both Friday and Saturday, and 284 tickets are sold

Thus, x + y = 284 -----(i)

Cost of one adult ticket = $8

Cost of x adults ticket = $8x

Cost of one student ticket = $5

Cost of y students ticket = 5y

Total sales = $1948

8x + 5y = 1948 ------(ii)

Multiply the equation (i) by 5

5x + 5y = 1420 ---- (iii)

Subtract the equation (ii) and (iii)

8x + 5y - 5x - 5y = 1948 - 1420

3x = 528

x = 176

Put the x in equation (i)

176 + y = 284

y = 284 - 176

y = 108

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The percentage of the total number of bottles sold in June, July and August that was sold in July is given as follows:

C. 40%.

The bar graph gives the number of bottles of suntan sold each month, as follows:

The total amount of bottles is given as follows:

1200 + 1500 + 1050 = 3750 bottles.

There were 1500 bottles sold in July, hence the percentage is given as follows:

p = 1500/3750 x 100%

p = 40%.

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He traveled 80 meters in 4 minutes.

For two minutes the bike was stationary.

He was traveling at the greatest speed from 6 minutes to 8 minutes.

The car's greatest speed is 50 m/s.

We have,

We are assuming from the graph that,

The x-values are in minutes and the y-values are the distance in meters.

Now,

The orders pairs from the graph are:

(4, 80)

This means,

In 4 minutes, 80 meters were traveled.

And,

(4, 80) and (6, 80)

This means,

From 4 minutes to 6 minutes, the distance traveled is 80 meters.

So,

The bike was stationary from 4 minutes to 6 minutes.

And,

(0, 0) and (4, 80)

Speed = (80 - 0) / (4 - 0) = 80/4 = 20m/s

(4, 80) and (6, 80)

Speed = (80 - 80) / (6 - 4) = 0 = constant speed

(6, 80) and (8, 180)

Speed = (180 - 80) / (8 - 6) = 100/2 = 50 m/s

(8, 180) and (10, 220)

Speed = (220 - 180) / (10 - 8) = 40/2 = 20 m/s

This means,

From 6 minutes to 8 minutes, the distance traveled is (180 - 80) meters.

This is the greatest speed.

Thus,

He traveled 80 meters in 4 minutes.

For two minutes the bike was stationary.

He was traveling at the greatest speed from 6 minutes to 8 minutes.

The car's greatest speed is 50 m/s.

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The probability of getting two students with the same major is higher for liberal arts majors, followed by business majors, engineering majors, and science majors.

To calculate the probability of getting two specific majors when selecting two students at random, we need to know the total number of students in each major. Let's assume there are 100 engineering majors, 150 business majors, 75 science majors, and 200 liberal arts majors.

The probability of selecting an engineering major as the first student is 100/525 (total number of students). The probability of selecting another engineering major as the second student is 99/524 (one less student in the pool). Multiplying these probabilities gives us 0.036 or 3.6% chance of getting two engineering majors.

Similarly, the probability of getting two business majors is (150/525) * (149/524) = 0.082 or 8.2%, two science majors is (75/525) * (74/524) = 0.023 or 2.3%, and two liberal arts majors is (200/525) * (199/524) = 0.151 or 15.1%.

Therefore, the probability of getting two students with the same major is higher for liberal arts majors, followed by business majors, engineering majors, and science majors.

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The value of the smallest angle of the quadrilateral will be 40 degrees.

The angles in a quadrilateral are in the ratio 6:2:7:3.

Let the canceling number be 'x'.

The sum of the angle of the quadrilateral is 360 degrees. Then the equation is given as,

6x + 2x + 7x + 3x = 360

18x = 360

x = 20

The value of the smallest angle is calculated as,

2x = 2(20)

2x = 40 degrees

More about the quadrilateral link is given below.

https://brainly.com/question/29934291

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