The Venn diagram below shows the numbers of students in a class who had curry (C) and salad (S) at lunch. A student is chosen at random. Find P(C U S)

The thickness of the clay layer, which drains only from the upper surface, can be determined based on the consolidation settlement observations. With 50% of consolidation settlement occurring in 1 hour for a 25 mm thick specimen, and a total primary consolidation settlement of 35 mm occurring over many years, the thickness of the clay layer is approximately 87.5 mm.

The consolidation settlement of a clay specimen can be used to estimate the thickness of a clay layer that drains only from the upper surface. In this case, the observed settlement data provides valuable information.

Firstly, we know that 50% of the consolidation settlement occurs in 1 hour for a 25 mm thick clay specimen. This is an important parameter for calculating the coefficient of consolidation (Cv) using Terzaghi's theory. From the Cv value, we can estimate the time required for full consolidation settlement.

Secondly, we are given that the same clay settles 10 mm over 10 years and eventually settles a total of 35 mm over a longer period. This long-term settlement is known as the total primary consolidation settlement. By comparing this settlement value with the settlement data from the oedometer test, we can determine the thickness of the clay layer.

To calculate the thickness, we can use the concept of the consolidation settlement ratio. The ratio of the total primary consolidation settlement to the consolidation settlement at 50% completion is equal to the ratio of the total thickness to the thickness at 50% completion. Applying this ratio, we can determine that the thickness of the clay layer, which drains only from the upper surface, is approximately 87.5 mm.

To learn more about thickness click here: brainly.com/question/23622259

#SPJ11

Answer:

1 lb of chips cost $3.50

1 lb of walnuts cost $2.75

Step-by-step explanation:

c = $ chips

w = $ walnuts

System of Equations:

2w + 3c = 16

6w + 5c = 34

I multiplied the first equation by -3 to eliminate the 'w' terms to get

c = 3.5

I substituted 3.5 for 'c' to get 2.75 for 'w'

Answer:

point a to point b is only one lkine.

If you're looking for it's length then (11,-7), or 13.04

Step-by-step explanation:

The range of the graph is the set of output values, and the range is (d) (-infinity,infinity)

From the graph in the complete question, we can see that the output values (i.e. the y values) extend indefinitely on both sides of the graph

This means that the range of the graph is the set of all real numbers.

This in other words means that (-infinity,infinity)

Hence, the range of the graph is (d) (-infinity,infinity)

Read more about range at:

https://brainly.com/question/10197594

#SPJ4

Kali needs at least 604 tiles to cover the rectangular prism. kali has 604 square tiles measuring 1 inch on each side.

To cover the rectangular prism, she needs enough tiles to completely cover all its surfaces. The number of tiles required can be calculated by finding the surface area of the prism. Since each tile covers 1 square inch, the total number of tiles needed is equal to the surface area of the prism, which in this case is 604.

To explain in more detail, Kali has 604 square tiles, each measuring 1 inch on each side. She wants to cover a rectangular prism with these tiles. In order to determine the number of tiles needed, we need to calculate the surface area of the prism. A rectangular prism has six faces, and each face is a rectangle. To find the surface area, we calculate the area of each face and sum them up. Since each tile covers 1 square inch, the total number of tiles needed will be equal to the surface area of the prism, which in this case is 604.

Learn more about rectangular here:

https://brainly.com/question/21416050

#SPJ11

The probability that the person selected is older than 20 years old and watching the drama movie is 0.765.

We have,

The total number of people who watch drama.

= 12 + 20 + 19

= 51

The total number of people who is older than 20 years who watch drama.

= 20 + 19

= 39

Now,

The probability that the person selected is older than 20 years old and watching the drama movie.

= 39/51

= 0.765

Thus,

The probability that the person selected is older than 20 years old and watching the drama movie is 0.765.

Learn more about probability here:

https://brainly.com/question/14099682

#SPJ12

The blue point on the number line is 5 units away from zero, which is: 5.

A number line is an arrangement of numbers from point zero, on both sides of the starting point, which is zero.

In the number line given, the blue point is 5 units away from the starting point, zero.

Therefore, the blue point is 5 on the number line.

Learn more about the number line on:

https://brainly.com/question/24644930

#SPJ1

The equation of the sphere that passes through the point (4, 3, -1) and has a center at (3, 8, 1) is: (x - 3)^2 + (y - 8)^2 + (z - 1)^2 = 30.

To find the equation of the sphere passing through the point (4, 3, -1) with a center at (3, 8, 1), we can use the general equation of a sphere:

(x - h)^2 + (y - k)^2 + (z - l)^2 = r^2

where (h, k, l) represents the center of the sphere and r represents the radius.

First, we need to find the radius. The distance between the center and the given point can be calculated using the distance formula:

√[(x2 - x1)^2 + (y2 - y1)^2 + (z2 - z1)^2]

Substituting the coordinates of the center (3, 8, 1) and the given point (4, 3, -1), we have:

√[(4 - 3)^2 + (3 - 8)^2 + (-1 - 1)^2]

Simplifying, we get:

√[1 + 25 + 4] = √30

Therefore, the radius of the sphere is √30.

Now we can substitute the center (3, 8, 1) and the radius √30 into the general equation:

(x - 3)^2 + (y - 8)^2 + (z - 1)^2 = 30

So, the equation of the sphere that passes through the point (4, 3, -1) and has a center at (3, 8, 1) is:

(x - 3)^2 + (y - 8)^2 + (z - 1)^2 = 30.

This equation represents all the points on the sphere's surface.

Know more about sphere here,

https://brainly.com/question/22849345

#SPJ11

The three objects that make up the Alpha centauri system, given their description, are all D. stars.

Alpha Centauri is a star system that consists of three stars, not planets, asteroids, or comets. The three stars are named Alpha Centauri A, Alpha Centauri B, and Proxima Centauri.

Alpha Centauri A and B are similar to the Sun, while Proxima Centauri is a smaller and cooler red dwarf star. The three stars in the Alpha Centauri system produce light and rotate on their own axis, and the system is located an average of 4 light-years from Earth.

Find out more on the Alpha Centauri system at https://brainly.com/question/1163628

#SPJ1

The measure of angle ABC is given as follows:

m < ABC = 145º.

Two angles are defined as supplementary angles when the sum of their measures is of 180º.

In a parallelogram, we have that the opposite angles are supplementary.

The opposite angles for this problem are given as follows:

Hence the measure of angle ABC is given as follows:

m < ABC + 35º = 180º.

m < ABC = 145º.

More can be learned about supplementary angles at brainly.com/question/2046046

#SPJ1

The missing number in 6 17 37 10 10 25 12 32 ? is 37.

Based on the provided sequence, the missing number can be determined by observing the pattern within the given numbers. Let's analyze the sequence:

6 17 37 10 10 25 12 32 ?

By examining the sequence, we can identify the following pattern:

The first number, 6, increases by 11 to become 17.

The second number, 17, increases by 20 to become 37.

The third number, 37, increases by 27 to become 64.

At this point, we can see that the pattern alternates between adding the square of an increasing increment and subtracting that same increment from the previous number. So, to continue the pattern:

The fourth number, 10, decreases by 6 to become 4.

The fifth number, 10, decreases by 1 to become 9.

The sixth number, 25, increases by 3 to become 28.

The seventh number, 12, decreases by 4 to become 8.

The eighth number, 32, increases by 5 to become 37.

Therefore, the missing number in the sequence is 37.

Know more about missing number here:

https://brainly.com/question/23171011

#SPJ11

The coordinates of X that partitions XY in the ratio 5 to 4 include the following: X (-1.6, -7).

In this scenario, line ratio would be used to determine the coordinates of the point X on the directed line segment AB that partitions the segment into a ratio of 5 to 4.

In Mathematics and Geometry, line ratio can be used to determine the coordinates of X and this is modeled by this mathematical equation:

M(x, y) = [(mx₂ + nx₁)/(m + n)],  [(my₂ + ny₁)/(m + n)]

By substituting the given parameters into the formula for line ratio, we have;

M(x, y) = [(5(2) + 4(-6))/(5 + 4)],  [(5(-11) + 4(-2))/(5 + 4)]

M(x, y) = [(10 - 24)/(9)],  [(-55 - 8)/9]

M(x, y) = [-14/9],  [(-63)/9]

M(x, y) = (-1.6, -7)

Read more on line ratio here: brainly.com/question/14457392

#SPJ1

Missing information:

The question is incomplete and the complete question is shown in the attached picture.

Answer:

20/27

Step-by-step explanation:

For n=20 and α=0.05, the critical value of r for a two-tailed test is approximately ±0.444.We would reject the null hypothesis and conclude that there is a significant correlation.

Let's break down the process of determining the critical value of r for a two-tailed test with n=20 and α=0.05.

The Pearson correlation coefficient (r) measures the strength and direction of the linear relationship between two variables. In a hypothesis test of correlation, the null hypothesis states that there is no significant correlation between the two variables, while the alternative hypothesis states that there is a significant correlation.

To test this hypothesis, we need to calculate the sample correlation coefficient (r) from our data and compare it to a critical value of r. If the sample r falls outside the range of critical values, we reject the null hypothesis and conclude that there is a significant correlation.

The critical value of r depends on the significance level (α) chosen for the test and the sample size (n). For a two-tailed test, we need to split α equally between the two tails of the distribution. In this case, α=0.05, so we split it into two tails of 0.025 each.

We then consult a table of critical values for the Pearson correlation coefficient, which provides the values of r that correspond to a given α and sample size. Alternatively, we can use statistical software to calculate the critical value.

For n=20 and α=0.05, the critical value of r for a two-tailed test is approximately ±0.444. This means that if our sample correlation coefficient falls outside the range of -0.444 to +0.444, we would reject the null hypothesis and conclude that there is a significant correlation.

It is important to note that this critical value is specific to the significance level and sample size chosen for the test. If we were to choose a different α or a different sample size, the critical value would also change accordingly.

Learn more about Critical value

brainly.com/question/14239612

#SPJ11

The required rate of return (or minimum acceptable rate of return) is 20 percent. If the net cash flows are $15,000 per year for ten years, the total cash flow is $150,000. The project's cost is $47,500. We can now apply the net present value formula to determine whether or not the project is feasible.

Net Present Value (NPV) = Cash flow / (1 + r)^n - Cost Where, r is the discount rate, n is the number of years, and Cost is the initial outlay.

Net Present Value = 150000 / (1 + 0.20)^10 - 47500

Net Present Value = $67,482.22

Since the NPV is positive, the project is feasible. When calculating net present value, it's important to remember that a positive NPV implies that the project is expected to generate a return that exceeds the cost of capital, whereas a negative NPV indicates that the project is expected to generate a return that is less than the cost of capital, and as a result, it should be avoided.

Know more about NPV here:

https://brainly.com/question/32720837

#SPJ11

Answer:

Step-by-step explanation:

You want to know whether a $25 deposit or a $40 withdrawal will result in a greater amount in bank accounts starting from the same amount. You want to know which transaction is the bigger change.

A deposit will increase the amount in the account, and a withdrawal will decrease it. The account with a $25 increase will have more money than the account decreased by $40, when they start with the same amount.

Ben's account has more money, choice A.

The amount the account value changed with the $25 deposit is $25. The amount the account value changed with the $40 withdrawal is $40. The withdrawal causes a larger change in the balance.

Huong's withdrawal represents a bigger change.

<95141404393>

Answer 15

Step-by-step explanation:

21 minus 5 is 16 munus 1 is 15 duh

Answer:

B=45

Step-by-step explanation:

310+50=360

360/8=45

:)

45

FiLLeR filler filler

The perimeter of the entire figure is 62.8 cm.

Given, that the diameter of the inner semicircles is 9 cm and the width between the outer and inner semicircles is 2 cm.

The radius of the inner semicircle =4.5 cm and the radius of outer semicircle =5.5 cm (∵Diameter=9+2=11 cm)

We need to find the perimeter of the entire figure.

A perimeter is a closed path that encompasses, surrounds, or outlines either a two-dimensional shape or a one-dimensional length. The perimeter of a circle or an ellipse is called its circumference.

We know that, the circumference of a semicircle=πr and the circumference of two semicircles=2πr

Thus, the circumference of inner semicircles=2×3.14×4.5=28.26 cm

The circumference of outer semicircles=2×3.14×5.5=34.54 cm

The perimeter of the entire figure=28.26+34.54=62.8 cm

Therefore, the perimeter of the entire figure is 62.8 cm.

To learn more about the perimeter visit:

https://brainly.com/question/6465134.

#SPJ1

The perimeter of whole path is 12.56 cm

Perimeter is the distance around the edge of a shape.

r1= 4.5cm, r2= 6.5cm

Perimeter of semicircle 1,

=πr1

= 3. 14 * 4.5

= 14.13 cm

Perimeter of semicircle 2

=πr2

= 3. 14 * 6.5

= 20.41 cm

Perimeter of path = 20.41 - 14.13 =6.28 cm

Perimeter of whole path = 2 * 6.28 =12.56

Learn more about perimeter here:

https://brainly.com/question/14034336

#SPJ1

Answer:

The answer is C.

Have a good day!

Answer:

40 and 45

Step-by-step explanation:

let the 2 numbers be x and y with y the larger of the two, then

x + y = 85 → (1)

x = y + 5 → (2)

substitute x = y + 5 into (1)

y + 5 + y = 85

2y + 5 = 85 ( subtract 5 from both sides )

2y = 80 ( divide both sides by 2 )

y = 40

substitute y = 40 into (2)

x = 40 + 5 = 45

the two numbers are 40 and 45

There is no number "c" that satisfies the M.V.T. for f(x) = x/(x + 2) on the interval [1, π].

To apply the Mean Value Theorem (M.V.T.), we need to check if the function is continuous on the closed interval [a, b] and differentiable on the open interval (a, b). If these conditions are met, then there exists a number "c" in (a, b) such that the derivative of the function at "c" is equal to the average rate of change of the function over the interval [a, b].

Let's calculate the number "c" for each given function:

(a) f(x) = e^(-x), [0, 2]

First, let's check if the function is continuous on [0, 2] and differentiable on (0, 2).

1. Continuity: The function f(x) = e^(-x) is continuous everywhere since it is composed of exponential and constant functions.

2. Differentiability: The function f(x) = e^(-x) is differentiable everywhere since the exponential function is differentiable.

Since the function is both continuous on [0, 2] and differentiable on (0, 2), we can apply the M.V.T. to find the value of "c."

The M.V.T. states that there exists a number "c" in (0, 2) such that:

f'(c) = (f(2) - f(0))/(2 - 0)

To find "c," we need to calculate the derivative of f(x):

f'(x) = d/dx(e^(-x)) = -e^(-x)

Now we can solve for "c":

-c*e^(-c) = (e^(-2) - e^0)/2

We can simplify the equation further:

-c*e^(-c) = (1/e^2 - 1)/2

-c*e^(-c) = (1 - e^2)/(2e^2)

Since this equation does not have an analytical solution, we can use numerical methods or a calculator to approximate the value of "c." Solving this equation numerically, we find that "c" ≈ 1.1306.

Therefore, the number "c" that satisfies the M.V.T. for f(x) = e^(-x) on the interval [0, 2] is approximately 1.1306.

(b) f(x) = x/(x + 2), [1, π]

Similarly, let's check if the function is continuous on [1, π] and differentiable on (1, π).

1. Continuity: The function f(x) = x/(x + 2) is continuous everywhere except at x = -2, where it is undefined.

2. Differentiability: The function f(x) = x/(x + 2) is differentiable on the open interval (1, π) since it is a rational function.

Since the function is continuous on [1, π] and differentiable on (1, π), we can apply the M.V.T. to find the value of "c."

The M.V.T. states that there exists a number "c" in (1, π) such that:

f'(c) = (f(π) - f(1))/(π - 1)

To find "c," we need to calculate the derivative of f(x):

f'(x) = d/dx(x/(x + 2)) = 2/(x + 2)^2

Now we can solve for "c":

2/(c + 2)^2 = (π/(π + 2) - 1)/(π - 1)

Simplifying the equation:

2/(c + 2)^2 = (

π - (π + 2))/(π + 2)(π - 1)

2/(c + 2)^2 = (-2)/(π + 2)(π - 1)

Simplifying further:

1/(c + 2)^2 = -1/((π + 2)(π - 1))

Now, solving for "c," we can take the reciprocal of both sides and then the square root:

(c + 2)^2 = -((π + 2)(π - 1))

Taking the square root of both sides:

c + 2 = ±sqrt(-((π + 2)(π - 1)))

Since the right-hand side of the equation is negative, there are no real solutions for "c" that satisfy the M.V.T. for f(x) = x/(x + 2) on the interval [1, π].

Therefore, there is no number "c" that satisfies the M.V.T. for f(x) = x/(x + 2) on the interval [1, π].

To know more about number click-

http://brainly.com/question/24644930

#SPJ11

The slope of the line that divides the region bounded by the parabola \(y=5x-3x^2\)and the x-axis into two regions with equal area is 5.

To find the slope of the line that divides the region into two equal areas, we need to determine the point of intersection between the parabola and the x-axis. Since the line passes through the origin, its equation will be y = mx, where m represents the slope.

Setting the equation of the parabola equal to zero, we find the x-values where the parabola intersects the x-axis. By solving the equation\(5x - 3x^2 = 0\), we get x = 0 and x = 5/3.

To divide the region into two equal areas, the line must pass through the midpoint between these x-values, which is x = 5/6. Plugging this value into the equation of the line, we have y = (5/6)m.

Since the areas on both sides of the line need to be equal, we can set up an equation using definite integrals. By integrating the equation of the parabola from 0 to 5/6 and setting it equal to the integral of the line from 0 to 5/6, we can solve for m. After performing the integration, we find that m = 5.

Therefore, the slope of the line that divides the region into two equal areas is 5.

Learn more about: Parabola

brainly.com/question/11911877

#SPJ11

Answer: 5 units

Step-by-step explanation:

Answer:

b = 30 degrees.

Step-by-step explanation:

Two angles are said to be complement of each other if their sum is 90 degrees

________________________

given

one angle is b

let other angle be x

given that  angle b is one-half the measure of its complement

thus, mathematically we can the above statement as

b = 1/2(x)

now sum of both the angle will be 90 degrees as they are complementary

b + x = 90

using b =  1/2(x)

=> 1/2(x) + x = 90

=> x/2 + x = 90

=> (x +2x)/2 = 90

=> 3x = 180

=> x = 180/3 = 60

thus,

b =  1/2(x) =  1/2(60) = 30

thus, measure of angle b is 30 degrees.