how do i solve -5x^2=-25 using square roots

(a) The statement is true. If an undirected graph G is 3-regular, then G must have an Euler circuit.

(b) The statement is false. An undirected graph G being 4-regular does not guarantee the existence of an Euler circuit.

(c) The statement is false. K4,3 does not have an Euler circuit.

(d) The statement is true. K2,3 has an Euler trail.

(e) The statement is true. K7 has an Euler circuit.

(f) The statement is false. A connected graph with a degree sequence {2, 2, 3, 4, 4, 4, 5} does not have an Euler circuit.

(g) The statement is true. A graph with a degree sequence {2, 2, 2, 2, 2, 2} has an Euler circuit.

(a) A 3-regular graph is a graph where each vertex has a degree of 3. It can be proven that every connected 3-regular graph has an Euler circuit. An Euler circuit is a path in a graph that visits every edge exactly once and returns to the starting vertex. Therefore, the statement is true.

(b) The statement is false. A 4-regular graph does not necessarily have an Euler circuit. An Euler circuit exists in a graph if and only if the graph is connected and every vertex has an even degree. Since a 4-regular graph has vertices of degree 4, which is an even number, it satisfies the condition for vertices. However, connectivity is not guaranteed, and there can be disconnected 4-regular graphs without an Euler circuit.

(c) K4,3 is a complete bipartite graph with one part containing 4 vertices and the other part containing 3 vertices. It can be proven that a complete bipartite graph has an Euler circuit if and only if all the vertices have even degree. In K4,3, the vertices on one side have degree 3 and the vertices on the other side have degree 4, which violates the condition. Hence, K4,3 does not have an Euler circuit.

(d) K2,3 is a bipartite graph with two vertices on one side and three vertices on the other side, connected by edges. Any bipartite graph has an Euler trail, which is a path that visits every edge exactly once, but it does not need to return to the starting vertex. Therefore, the statement is true.

(e) K7 is a complete graph with 7 vertices, and every vertex has degree 6. It can be proven that a complete graph has an Euler circuit because all vertices have even degree and the graph is connected. Hence, the statement is true.

(f) A connected graph with a degree sequence {2, 2, 3, 4, 4, 4, 5} cannot have an Euler circuit. For an Euler circuit to exist, every vertex must have even degree. However, in this degree sequence, there is one vertex with an odd degree (degree 3), which violates the necessary condition for an Euler circuit. Therefore, the statement is false.

(g) A graph with a degree sequence {2, 2, 2, 2, 2, 2} consists of six vertices, each having degree 2. In such a graph, every vertex has an even degree, and the graph is connected. Thus, it satisfies the conditions for an Euler circuit, and the statement is true.

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Answer:

18√3

Step-by-step explanation:

In order to simplify 9√12, we'll have to factor a perfect square that evenly divides into 12 itself.  

[tex]9\sqrt{12}\\ 9\sqrt{4*3}[/tex]

We can leave the 9 outside and rewrite the expression as two square roots:

[tex]9(\sqrt{4}*\sqrt{3}) \\9(2\sqrt{3})[/tex]

Now we can distribute to fully simplify the square root

[tex]18\sqrt{3}[/tex]

The algorithm performs n operations in total. In each iteration of the outer loop, the inner loop runs i times, where i ranges from 1 to n. Inside the inner loop, a single operation is performed, which is the assignment of a constant value to the variable k. Therefore, the total number of operations can be calculated by summing up the number of iterations of the inner loop for each iteration of the outer loop.

Since the number of iterations of the inner loop increases by 1 with each iteration of the outer loop, the sum of the first n integers can be used to calculate the total number of operations. The sum of the first n integers is given by the formula n * (n + 1) / 2, so the algorithm performs approximately n * (n + 1) / 2 operations.

The algorithm consists of a nested loop structure. The outer loop iterates from i = 1 to n, and for each iteration of the outer loop, the inner loop runs from j = 1 to i. Inside the inner loop, a single operation is performed, which is the assignment of a constant value to the variable k. This assignment operation takes a constant amount of time and can be considered as a basic operation. Therefore, the total number of operations can be calculated by summing up the number of iterations of the inner loop for each iteration of the outer loop.

For the outer loop, it iterates n times. In the first iteration, the inner loop runs once (j = 1), in the second iteration, the inner loop runs twice (j = 1, 2), and so on, until the nth iteration where the inner loop runs n times (j = 1, 2, ..., n). Therefore, the total number of iterations of the inner loop can be calculated by summing up the first n integers, which is given by the formula n * (n + 1) / 2.

Since each iteration of the inner loop involves a single operation, the total number of operations can be approximated as n * (n + 1) / 2. This formula calculates the number of operations in terms of the input size n.

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Answer:

5 Centimeters

Step-by-step explanation:

please give brainliest thanks!

The person's average daily balance will be 90,190 by adding up the balances for each day of the month and dividing by the total number of days.

In this case, the person has a balance of $3,270 for 9 days, $4,360 for 10 days, and $1,430 for 12 days.

To find the average daily balance, we add up the product of each balance and its corresponding number of days, and then divide by the total number of days in the month (31 days).

So, the calculation would be:

(3270 * 9 + 4360 * 10 + 1430 * 12) / 31

90,190

By performing this calculation, we can determine the average daily balance for the person's credit card rounded to the nearest cent.

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The total surface area of the new box is given by the equation:

SA_new = 2(LW + LH + 3.5L + WH + 3.5W + 7).

To calculate the new total surface area of the box after increasing the height by 3.5 centimeters, we need to consider the dimensions of the box and how each side is affected by the increase.

Let's assume the original box has dimensions:

Length (L)

Width (W)

Height (H)

The total surface area of the original box is given by:

SA_original = 2(LW + LH + WH)

After increasing the height by 3.5 centimeters, the new height becomes H + 3.5. The other dimensions, length and width, remain the same.

The new total surface area of the box can be calculated as follows:

SA_new = 2(LW + (L(H + 3.5)) + (W(H + 3.5)))

Simplifying the equation:

SA_new = 2(LW + LH + 3.5L + WH + 3.5W + 7)

Therefore, the total surface area of the new box is given by the equation:

SA_new = 2(LW + LH + 3.5L + WH + 3.5W + 7)

To find the closest value to the total surface area of the new box, you would need to know the specific values of L, W, and H for the original box. With those values, you can substitute them into the equation to calculate the exact surface area.

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Tops of the two flag poles are 22 feet apart

Given that Two flagpoles, one 40 feet tall and one 60 feet tall, are mounted perpendicular to a horizontal concrete slab as shown

We have to find how apart are  the tops of the two flag poles

By pythagoras theorem we find the distance from top of the flags

20²+10²=x²

400+100=x²

500=x²

x=22.36

Hence, tops of the two flag poles are 22 feet apart

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Using the ratio test, we have:

lim n→∞ [(5(n+1) - 1)!/(5(n+1) + 1)!] * [(5n + 1)!/(5n - 1)!]

= lim n→∞ [(5n + 4)(5n + 3)(5n + 2)(5n + 1)] / [(5n + 6)(5n + 5)]

= lim n→∞ [(25n^2 + 35n + 6)/(25n^2 + 35n + 18)]

= 1

Since the limit is equal to 1, the ratio test is inconclusive.

We will try the root test instead:

lim n→∞ [(5n - 1)!]^(1/(5n + 1)) / [(5n + 1)!]^(1/(5n + 1))

= lim n→∞ [(5n - 1)/(5n + 1)]^(1/(5n + 1))

= lim n→∞ [(1 - 2/(5n + 1))/(1 + 2/(5n + 1))]^(1/(5n + 1))

= 1/e^2

Since the limit is less than 1, by the root test, the series converges.

Therefore, the sequence converges.

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The number of possible combinations will depend on the size of the restaurant chain. However, we can always use the formula nCr to calculate the number of different possible ways to select r items from a set of n items.

To determine the number of different possible ways the general manager can select restaurants for the promotional program, we need to use the formula for combinations. Let's say there are n restaurants in the chain, and the manager needs to select r restaurants for the program. The formula for combinations is:
nCr = n! / r!(n-r)!
In this case, the manager needs to select a certain number of restaurants, so r is a fixed value. Let's assume the manager needs to select 5 restaurants for the program. Then the formula becomes:
nC5 = n! / 5!(n-5)!
We don't know the value of n, but we can calculate the number of possible combinations for different values of n. For example:
- If there are only 5 restaurants in the chain, then the manager has no choice but to select all of them. In this case, there is only one possible combination.
- If there are 10 restaurants in the chain, then the manager can select any 5 of them. Using the formula, we get:
nC5 = 10! / 5!(10-5)! = 252
So there are 252 different possible ways for the manager to select 5 restaurants from a chain of 10.
- If there are 20 restaurants in the chain, then the manager has even more choices. Using the formula, we get:
nC5 = 20! / 5!(20-5)! = 15,504
So there are 15,504 different possible ways for the manager to select 5 restaurants from a chain of 20.
In general, the number of possible combinations will depend on the size of the restaurant chain. However, we can always use the formula nCr to calculate the number of different possible ways to select r items from a set of n items.

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The least squares solution of the equation is x = (C, D) = (7, 0).

To find the least squares solution for the line equation b = C + Dt and draw the closest line, we need to set up a system of equations using the given data points.

Using the line equation b = C + Dt, substitute the values to form the following equations:

Equation 1: 7 = C - D

Equation 2: 7 = C + D

Equation 3: 21 = C + 2D

To find the least squares solution x = (C, D),

we want to minimize the sum of squared differences between the actual data points and the line.

This can be done by solving the system of equations using the method of least squares.

Let's solve the system of equations:

Add (1) and (2)

7 + 7 = C - D + C + D

14 = 2C

C = 7

Solving for D, we find:

7 = 7 - D

D = 0

Therefore,

The least squares solution of the equation is x = (C, D) = (7, 0).

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The 100,000 is the number of initial download and rate is 10%.

Given is a function [tex]f(w) = 100,000\times(9/10)^w[/tex], where the number of downloads of a song is a function, f, of the number of weeks, w, since the song was released.

So, the exponential function is given by, P = P'(1+r)ⁿ

Where P = final number, P' = initial number, r = rate and n = times

On comparing the given function with the exponential function we get,

100,000 = Initial downloads  

9/10 = 1+r

r = -1/10 = -10% the negative sigh shows the decrease in the number of downloads.

Hence the 100,000 is the number of initial download and rate is 10%.

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The function f such that f = ∇ · F is:

f = [tex]k(xy^2z)^{(k-1)[/tex] * (2xy² + z)

A function is an association between inputs in which each input has a unique link to one or more outputs.

To find a function f such that f = ∇ · F, we need to compute the divergence of the vector field F = (yzi, xzj,[tex](xy^2z)k[/tex]).

The divergence (∇ · F) of a vector field F = (F1, F2, F3) is given by the following formula:

∇ · F = ∂F1/∂x + ∂F2/∂y + ∂F3/∂z

Let's compute the partial derivatives of F with respect to x, y, and z:

∂F1/∂x = 0

∂F2/∂y = 0

∂F3/∂z = [tex]k(xy^2z)^{(k-1)[/tex] * ([tex]2xy^2[/tex] + z)

Now, we can substitute these partial derivatives into the divergence formula:

∇ · F = ∂F1/∂x + ∂F2/∂y + ∂F3/∂z = 0 + 0 + [tex]k(xy^2z)^{(k-1)[/tex] * ([tex]2xy^2[/tex] + z)

Therefore, the function f such that f = ∇ · F is:

f = [tex]k(xy^2z)^{(k-1)[/tex] * (2xy² + z)

Note that the exact form of the function may vary depending on the values of k and the variables x, y, and z.

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Answer: The value of x is 38.4

Answer:D

Step-by-step explanation:

The number you should pick is 7

To determine the best number to pick, we need to analyze the probabilities of rolling each possible sum.

The 6-sided dice can produce numbers from 1 to 6, and the 10-sided dice can produce numbers from 1 to 10. The maximum possible sum is 6 + 10 = 16.

We can calculate the probabilities of each sum by considering all the possible combinations of numbers on the dice.

Here is a table showing the sums and their corresponding probabilities:

Sum  Probability

2      1/60

3     2/60

4          3/60

5     4/60

6     5/60

7     6/60

8     5/60

9     4/60

10     3/60

11     2/60

12      1/60

13-16 0

To determine the best number to pick, we need to consider the probabilities of winning for each sum. The higher the probability, the better chance of winning.

By examining the probabilities, we can see that the sums with the highest probabilities are 7  with a probability of 6/60 or 1/10.

Therefore, if you want to maximize your chances of winning, you should pick 7 as your guess.

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Graph (B) illustrates the demand curve most likely faced by a firm in a monopolistically competitive market. This is because in a monopolistically competitive market, firms sell differentiated products that are close substitutes for each other.

As a result, firms in this market face a downward-sloping demand curve that is relatively elastic, meaning that consumers are sensitive to changes in price.

Graph (B) shows a relatively elastic demand curve, where a small change in price results in a large change in quantity demanded. This is consistent with the characteristics of a monopolistically competitive market, where firms must carefully balance price and product differentiation to attract and retain customers.

Graphs (A), (C), and (D) show demand curves that are either too steep or too flat to be consistent with a monopolistically competitive market. Graph (A) shows a perfectly elastic demand curve, which is not realistic in any market. Graph (C) shows a relatively inelastic demand curve, which is more typical of a monopolistic market. Graph (D) shows a relatively flat demand curve, which is more typical of a perfectly competitive market.

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Let's denote the radius of the spherical balloon by r, and let's assume that the volume of the balloon is increasing at a rate of 10 cubic centimeters per second. We want to find an expression for the rate at which the radius of the balloon is increasing, which we'll denote by dr/dt.The volume of a sphere is given by the formula:V = (4/3)πr^3Differentiating both sides of this equation with respect to time t, we get:dV/dt = d/dt [(4/3)πr^3]where dV/dt is the rate at which the volume of the balloon is increasing, and dr/dt is the rate at which the radius of the balloon is increasing. Using the chain rule of differentiation, we get:dV/dt = (dV/dr) x (dr/dt)where dV/dr is the derivative of the volume V with respect to the radius r, which is given by:dV/dr = 4πr^2Substituting this expression into the previous equation, we get:10 = (4πr^2) x (dr/dt)Solving for dr/dt, we get:dr/dt = 10 / (4πr^2)Therefore, the expression for the rate at which the radius of the balloon is increasing is given by:dr/dt = 10 / (4πr^2)

The parametric coordinates in a circle of radius 2 are given by:

(2cos(θ), 2sin(θ)).

We have,

For a general circle, with radius r, the parametric coordinates of x and y are given as follows:

(x,y) = (rcos(θ), rsin(θ)).

The unit circle is a circle of radius 1, hence r = 1 and the parametric coordinates, as given in the problem, are:

(x,y) = (cos(θ), sin(θ)).

In this problem, a circle with radius of 2 is used, hence r = 2 and then, the  parametric coordinates in a circle of radius 2 are given by:

(2cos(θ), 2sin(θ)).

We just found the numeric value, that is, we replaced each instance of the radius in the coordinates by it's actual value.

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The likelihood is calculated as the ratio of feasible results to the sample space. As a result, we get:(3*4*2)/(7*6*5)= 9/56 . Therefore, the probability of the code being an even number that is greater than 500 is 9/56.

Let A = {8, 3, 5, 9, 1.4, 2, 7}. A three-digit code will be formed by arbitrarily organizing three distinct digits from the set A.

The sample space for the probability is 7*6*5. This is due to the fact that we are arbitrarily arranging three distinct digits from a set of seven.

The number of feasible results, on the other hand, is 3*4*2, as we discovered above.

The likelihood is calculated as the ratio of feasible results to the sample space. As a result, we get:(3*4*2)/(7*6*5)= 9/56

Therefore, the probability of the code being an even number that is greater than 500 is 9/56.

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The logistic model is a type of population growth model that incorporates the concept of carrying capacity. Carrying capacity refers to the maximum number of individuals that an ecosystem can sustain over a prolonged period of time.

The logistic model takes into account the fact that as a population approaches its carrying capacity, the rate of growth slows down and eventually levels off.

The logistic model is a density-dependent model, which means that it takes into account the effect of population density on population growth. Density-dependent factors, such as competition for resources, disease, and predation, become more significant as a population grows and can limit population growth. As a result, the logistic model is more accurate in predicting population growth than density-independent models, which do not take into account the effect of population density.

Overall, the logistic model is an important tool for understanding population dynamics and predicting future population trends. By incorporating the concept of carrying capacity, it provides a more realistic view of how populations grow and interact with their environment.

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The value of angle θ is 315°

Positive and negative angles are determined by the direction in which a ray rotates to form an angle.

If it rotates in a clockwise direction then the angle is negative and if it rotates in an anticlockwise direction then the angle is positive.

As it is shown the direction of the angle is in anticlockwise direction. Therefore the angle will be positive.

The angle in a quadrant is 90° , this means 2 quadrants will be 2 × 90 = 180°

The angle passes through 3 ½ quadrant

= 7/2 × 90

= 7 × 45

= 315°

Therefore the value of θ is 315°

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The information that is not sufficient to prove that a parallelogram is a square is an option (3) The diagonals are perpendicular and one pair of adjacent sides are congruent.

A parallelogram is a quadrilateral with two pairs of parallel sides. A quadrilateral is a four-sided polygon. A square is a quadrilateral with four sides of equal length and four right angles. So, the opposite sides of a square are parallel and congruent and all four angles are equal to 90 degrees.

A square is a special type of parallelogram in which all four sides are equal in length and all four angles are equal to 90 degrees. We can prove a parallelogram is a square by using the following statements:

(1) The diagonals of a square are both congruent and perpendicular.

(2) If the diagonals of a parallelogram are congruent, then the parallelogram is a rectangle.

(3) If one pair of opposite sides of a parallelogram are parallel and congruent, then the parallelogram is a rhombus.

(4) If the diagonals of a rhombus are perpendicular, then the rhombus is a square.

Thus, we can conclude that option (3) The diagonals are perpendicular and one pair of adjacent sides are congruent is not sufficient to prove that a parallelogram is a square.

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If we improve the multiply by a factor of 2, then the program will be able to multiply accounts for 160s out of 100s.

If the "multiply" accounts for 80 out of 100, it implies that it is successful 80% of the time. This means that the program's efficiency has doubled and it can now process twice as many accounts in the same amount of time.

Improving the "multiply" by a factor of 2 would mean increasing its success rate to 160 out of 100 (or 160%). However, it is not possible to have a success rate greater than 100% in this context, so the statement "improve the multiply by a factor of 2" doesn't make logical sense.

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The probability of event A and event B occurring simultaneously is 0.09.

The probability that either event A or event B will occur, we need to use the formula:

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

So,

P(A) = 6/20 = 0.3

P(B) = 6/20 = 0.3

P(A and B) = the probability of both events A and B occurring simultaneously, which is not given in the question.

Therefore, we cannot find the probability that either event A or event B will occur without knowing P(A and B).

To find the probability of event A and event B occurring simultaneously, we use the formula:

P(A and B) = P(A) x P(B)

So,

P(A and B) = (6/20) x (6/20) = 0.09

Therefore, the probability of event A and event B occurring simultaneously is 0.09.

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The answer to your question is the volume of the cylindrical hotel. The long answer requires an explanation of how to find this volume.

To find the volume of a cylinder, we use the formula V = πr^2h, where V is the volume, r is the radius (which is half the diameter), and h is the height.
First, we need to find the radius of the cylinder. We know the diameter is 150 ft, so the radius is 75 ft (half of 150).
Next, we can plug in the given values for the height and radius into the formula:
V = π(75)^2(427)
Simplifying this expression, we get:
V = 2,023,150π cubic feet
So the volume of the cylindrical hotel is approximately 6,349,716 cubic feet (rounded to the nearest whole number).

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The value of k that satisfies the equation (y² + ky - 3)(y - 4) = y³ + by² + 5y + 12 for all values of y is k = 2. (option b).

Let's start by expanding both sides of the equation and simplifying it step by step. The left side of the equation can be expanded using the distributive property:

(y² + ky - 3)(y - 4) = y³ + by² + 5y + 12

Expanding the left side:

y³ - 4y² + ky² - 4ky - 3y + 12 = y³ + by² + 5y + 12

We can see that the terms y³ and 12 appear on both sides of the equation. We can cancel them out by subtracting y³ from both sides and subtracting 12 from both sides:

-4y² + ky² - 4ky - 3y = by² + 5y

Next, we want to isolate the terms with y on one side of the equation. Let's move all the terms with y to the left side and all the terms without y to the right side:

-4y² - by² - 3y - 5y + 4ky = 0

Combining like terms:

(-4 - b)y² + (4k - 3 - 5)y = 0

Since this equation holds true for all values of y, the coefficients of the y² and y terms must be zero. Therefore, we have the following equations:

-4 - b = 0 ...(1)

4k - 3 - 5 = 0 ...(2)

Solving equation (1) for b:

-4 - b = 0

b = -4

Substituting b = -4 into equation (2):

4k - 3 - 5 = 0

4k - 8 = 0

4k = 8

k = 8/4

k = 2

Hence the correct option is (b).

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It is true that in goal programming, deviation variables allow for the possibility of not meeting the target value exactly.

In goal programming, deviation variables are used to measure the deviation or distance from the target values or goals for different objectives. These deviation variables allow for the possibility of not meeting the target value exactly, as they represent the degree of deviation from the desired goals.

Goal programming recognizes that in real-world situations, it may not always be possible or practical to achieve the target values exactly due to various constraints or limitations. Therefore, deviation variables are introduced to capture the extent to which the objectives can deviate from their targets, allowing for a more realistic representation of the decision-making process.

By minimizing the deviations or finding a solution that minimizes the overall deviations from the goals, goal programming seeks to find the best compromise or trade-off between conflicting objectives while considering the flexibility of not meeting the target values exactly.

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The value of the investment multiplier is 5.

Given that:

Consumption function: C = c0 + c1(Y − T)

Investment function: I = I0 − m(r)

Government spending: G = G0

Tax revenue: T = t0 + t1Y

Where, C = Consumption

GDP = Y = C + I + G

Disposable income = Y − T

Private saving = Y − T − CG

= Government spending

I = Investment

t0 = autonomous tax component

t1 = endogenous tax component

m(r) = investment multiplier

Finding the equilibrium values of GDP, consumption, disposable income, and private saving

To find the equilibrium values, we need to set Y = GDP,

C = Consumption, T = Tax revenue and

S = Private Saving.

So, Y = C + I + GY = c0 + c1(Y − T) + I0 − m(r)GDP

= (c0 + I0 + G0 + t0) + (c1 − m(r))Y − t1Y.

GDP = [tex][c0 + I0 + G0 + t0] / [1 − (c1 − m(r) + t1)][/tex]

Now, we need to calculate the value of consumption and private saving

Disposable income = Y − T

Disposable income = Y − (t0 + t1Y)

Disposable income = (1 − t1)Y − t0

Consumption = c0 + c1(Y − T)

[tex]= c0 + c1(1 − t1)Y − c1t0[/tex]

Private saving = [tex](1 − t1)Y − (t0 + c0 + c1(1 − t1)Y − c1t0)[/tex]

Private saving = [tex](1 − c1)(1 − t1)Y + (c0 − c1t0)[/tex]

The expression of the investment multiplier in terms of c0 and/or c1 is:

[tex]ΔY / ΔI = 1 / [1 − c1 + m'(r)][/tex]

The values of c0 and c1 are 48 and 0.6, respectively.

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The probability that a person who tests positive has the disease is 0.032

we can use Bayes' theorem. Let's denote the following events

A: A person has the disease

B: The person tests positive

We are given the following probabilities

P(A) = 2% = 0.02 (probability of a person having the disease)

P(B|A) = 91.4% = 0.914 (probability of testing positive given that the person has the disease)

P(B|not A) = 4.2% = 0.042 (probability of testing positive given that the person does not have the disease)

We want to find P(A|B), the probability that a person has the disease given that they test positive.

By Bayes' theorem, we have

P(A|B) = (P(B|A) × P(A)) / P(B)

P(B), the probability of testing positive, we can use the law of total probability

P(B) = P(B|A) × P(A) + P(B|not A) × P(not A)

P(not A) represents the complement of having the disease, which is 1 - P(A).

Substituting the values

P(B) = (0.914 × 0.02) + (0.042 × (1 - 0.02))

P(B) = 0.01828 + 0.04116

P(B) = 0.05944

Now, let's calculate P(A|B)

P(A|B) = (0.914 × 0.02) / 0.05944

P(A|B) = 0.01828 / 0.05944

P(A|B) ≈ 0.032

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The volume of the pyramid is 1437.33 cm³.

The diagram above is a square base pyramid. Therefore, the volume of the pyramid can be found as follows:

volume of the pyramid = 1 / 3 Bh

where

Therefore,

B = 14 × 14 = 196 cm²

h = 22 cm

Therefore,

volume of the pyramid = 1 / 3 × 196 × 22

volume of the pyramid = 4312 / 3

volume of the pyramid = 1437.33 cm³

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Answer: 4.5

Step-by-step explanation:

See how ABC has AB=6 and BC=3?
Well, lines AE and AD both come from A, so that means AB/AD=CB/ED

Hence, If AD=9 (6*1.5) than ED=4.5 (3*1.5)