For 90° bending of sheet metal, which operation is preferred? a. V-die bending b. Wiping-die bending

The given statement is True.

What is conditional statement?

A conditional statement is a type of logical statement that has two parts: a hypothesis and a conclusion. The hypothesis is the "if" part of the statement, and the conclusion is the "then" part. The conditional statement asserts that if the hypothesis is true, then the conclusion must also be true.

The given statement is True.

This is an example of a proof by conditional statement. To prove a conditional statement of the form "If A, then B," you assume A and use deductive reasoning to show that B logically follows. In this case, you assume the antecedent (c ⊃ (i ≡ z)) and attempt to prove the consequent (f) within the scope of that assumption. If you are successful, then you have shown that the conditional statement is true.

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The given statement is True.

What is conditional statement?

A conditional statement is a type of logical statement that has two parts: a hypothesis and a conclusion. The hypothesis is the "if" part of the statement, and the conclusion is the "then" part. The conditional statement asserts that if the hypothesis is true, then the conclusion must also be true.

The given statement is True.

This is an example of a proof by conditional statement. To prove a conditional statement of the form "If A, then B," you assume A and use deductive reasoning to show that B logically follows. In this case, you assume the antecedent (c ⊃ (i ≡ z)) and attempt to prove the consequent (f) within the scope of that assumption. If you are successful, then you have shown that the conditional statement is true.

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An equation that can be used to find B, the area of the base with a volume of V is: B. B = V/6.

In Mathematics and Geometry, the volume of a rectangular prism can be calculated by using the following formula:

Volume of a rectangular prism, V = L × W × H = B × H

Where:

Since the various rectangular prisms have a height of 6 inches, we have the following;

Volume of a rectangular prism, V = B × H

Volume of a rectangular prism, V = B × 6

B = V/6

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Missing information:

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

The correct equation of exchange accounting identity is: MV = PQ.

This equation states that:
- M represents the money supply
- V represents the velocity of money (the rate at which money is exchanged)
- P represents the average price level of goods and services
- Q represents the real quantity of goods and services

The equation of exchange (MV = PQ) shows the relationship between the money supply and the price level, as well as the velocity of money and the real quantity of goods and services in an economy.

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The limit of the given function as t approaches negative infinity is 1.

To evaluate the limit of the given function as t approaches negative infinity, we need to determine the behavior of the function as t becomes increasingly negative.

First, note that as t approaches negative infinity, both the numerator and denominator of the fraction become increasingly negative.

To simplify the expression, we can divide both the numerator and denominator by the highest power of t that appears in the denominator, which is t³

[tex]\lim_{t \to- \infty}[/tex] (3t² + t)/(t³ - 7t + 1)

= [tex]\lim_{t \to- \infty}[/tex] (3/t - 1/t²)/(1 - 7/t² + 1/t³)

As t approaches negative infinity, the dominant term in the denominator is -7/t², which becomes increasingly negative. Therefore, the limit of the denominator as t approaches negative infinity is negative infinity.

Now let's look at the numerator. As t approaches negative infinity, the dominant term in the numerator is 3/t, which becomes increasingly negative. Therefore, the limit of the numerator as t approaches negative infinity is negative infinity.

Using the quotient rule for limits, we can conclude that:

[tex]\lim_{t \to- \infty}[/tex] (3t² + t)/(t³ - 7t + 1) = [tex]\lim_{t \to- \infty}[/tex] (3/t - 1/t²)/(1 - 7/t² + 1/t³) = -[infinity]/-[infinity] = 1

Thus, the limit t approaches negative infinity is 1.

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The hexadecimal equivalent of the decimal number 0.6640625 is 0.AA8.

The conversion process involves multiplying the decimal number by 16 and separating the integer part from the fractional part. The integer part is converted to hexadecimal, while the fractional part is multiplied by 16 again and the process is repeated until the desired accuracy is achieved.

In this case, we can multiply 0.6640625 by 16, which results in 10.625. The integer part, 10, can be converted to hexadecimal as A. We then take the fractional part, 0.625, and multiply it by 16 again, which results in 10. The integer part, 10, can be converted to hexadecimal as A. We can repeat this process to get more accuracy, but since we only need four hexadecimal digits, we can stop here.

Therefore, the hexadecimal representation of the decimal number 0.6640625 is 0.AA8.

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Answer:

Step-by-step explanation:

To factor 2h^2 - 7h + 5, we need to find two binomials of the form (ah + b)(ch + d) that multiply to give the original expression.

To do this, we can use a technique called "factoring by grouping":

Step 1: Multiply the first term by the constant term: 2h^2 * 5 = 10h^2.

Step 2: Find two factors of 10h^2 that add up to the coefficient of the middle term, -7h. We can see that -5h and -2h satisfy this condition, since -5h * 2h = -10h^2 and -5h + (-2h) = -7h.

Step 3: Rewrite the middle term -7h as the sum of -5h and -2h: -7h = -5h - 2h.

Step 4: Factor by grouping:

2h^2 - 5h - 2h + 5

h(2h - 5) - 1(2h - 5)

(h - 1)(2h - 5)

Therefore, the factorization of 2h^2 - 7h + 5 is (h - 1)(2h - 5).

The correct statements are: f may be surjective and f cannot be injective.

1. f may be surjective:

A function is surjective (or onto) if every element in B has a corresponding element in A. It is possible for f to be surjective if multiple elements in A map to the same element in B.

2. f cannot be injective:

A function is injective (or one-to-one) if every element in A maps to a unique element in B. Since |A| > |B|, there must be at least one element in B that has more than one corresponding element in A, so f cannot be injective.

3. f may be injective:

This option is incorrect, as I explained in the previous point.

4. f cannot be surjective:

This option is incorrect, as f may be surjective, as I explained in the first point.

5. f must be surjective:

This option is incorrect, as it depends on how the elements in A map to those in B. It is possible but not guaranteed.

6. f may be injective:

This option is incorrect, as I explained in the second point.

So, the correct statements are: f may be surjective and f cannot be injective.

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The degree of the polynomial function f(x) is 3 (since the highest power of x is 3). The leading coefficient is -2 (since it is the coefficient of the highest power of x, which is x^3).

The given function is f(x) = -2x^3(x-1)(x+5). To find the degree of the polynomial and the leading coefficient, we need to first expand the expression.

Expanding the function, we have:

f(x) = -2x^3(x² - x + 5x - 5)

f(x) = -2x^3(x² + 4x - 5)

Now, to find the degree and the leading coefficient, we multiply the terms:

f(x) = -2x³(x²) + (-2x³)(4x) + (-2x³)(-5)

f(x) = -2x⁵ - 8x⁴ + 10x³

The degree of the polynomial function f(x) is 5, and the leading coefficient is -2.

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The volume of the solid obtained by rotating y=1/x from x=1 to infinity about x-axis is finite, while its surface area is infinite.

To show that the volume of the solid obtained by rotating the portion of y=1/x from x=1 to infinity about the x-axis is finite,

we can use the formula for the volume of a solid of revolution:

V = π∫(b, a) y² dx

where y is the distance from the curve to the axis of rotation, and a and b are the limits of integration.

For the curve y = 1/x, the limits of integration are from 1 to infinity, and the distance from the curve to the x-axis is y, so we have:

Therefore, the volume of the solid is π, which is a finite value.

To show that the surface area of the solid is infinite, we can use the formula for the surface area of a solid of revolution:

S = 2π∫(b, a) y √(1 + (dy/dx)²) dx

For the curve y = 1/x, we have dy/dx = -1/x²,

so we can write:

Making the substitution u = 1/x², we get:

Therefore, the surface area of the solid is infinite.

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Using the given formula and x₀ = -4.25, we get X₁ = 8, X₂ = -2.375, and X₃ =  -0.10526. Comparing coefficients, we get b = 0.3376  and c =-0.4270.

We are given the formula xₙ₊₁ = - 3 - 5/ x₂ⁿ, with x₀ = - 4.25, and we need to find the values of X₁, X₂, and X₃.

Using the formula, we have

X₁ = -3 - 5/ x₂⁰ = -3 - 5/1 = -8

X₂ = -3 - 5/ x₂¹ = -3 - 5/(-8) = -2.375

X₃ = -3 - 5/ x₂² = -3 - 5/(-2.375) = -0.10526 (rounded to 5 decimal places)

Therefore, X₁ = -8, X₂ = -2.375, and X₃ = -0.10526 (rounded to 5 decimal places).

We are given the formula Xn+1 = -3 - 5/ xₙ², which can be used to find an approximate solution to x₃ + bx² + c = 0. We need to work out the value of b and the value of c.

Comparing the two formulas, we can see that x₃ is the value of Xn+1, and x₀ is the value of X₁. Therefore, we have

x₃ = Xn+1 = -3 - 5/ x₂² = -3 - 5/(-2.375)² = -2.9185 (rounded to 4 decimal places)

Substituting x₃ = -2.9185 into the equation x₃ + bx² + c = 0, we get:

-2.9185 + b(x²) + c = 0

We also know that x₀ = -4.25 is a root of the equation, which means that when x = -4.25, the equation is equal to 0. Substituting x = -4.25 into the equation, we get

-4.25 + b(4.25)² + c = 0

Simplifying, we get

18.0625b + c = 4.25

We now have two equations

-2.9185 + b(x²) + c = 0

18.0625b + c = 4.25

We can use these equations to solve for b and c. Subtracting the first equation from the second equation, we get

18.0625b - 2.9185 = 4.25

Solving for b, we have

b = 0.3376 (rounded to 4 decimal places)

Substituting b = 0.3376 into the second equation and solving for c, we have

c = 4.2500 - 18.0625b = -0.4270 (rounded to 4 decimal places)

Therefore, the value of b is approximately 0.3376, and the value of c is approximately -0.4270.

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Answer:

-0.6 or -(3/5)

Step-by-step explanation:

Let's simplify the left-hand side of the equation first:

4(2x+5)-2(x-3)

= 8x + 20 - 2x + 6 [distributing the multiplication and simplifying the parentheses]

= 6x + 26

Now let's simplify the right-hand side of the equation:

8(2x+4)

= 16x + 32

So the equation becomes:

6x + 26 = 16x + 32

Let's isolate x on one side of the equation:

6x - 16x = 32 - 26

-10x = 6

x = -0.6

Therefore, the solution to the equation is x = -0.6.

Option B is correct. The volume of the solid created is approximately 2.356 cubic units.

We can use the disk method.

First, we need to find the equation of the line passing through the points (1,0) and (1,1), which is simply x=1.

Next, we can find the equation of the line passing through the points (3,1) and (1,1) using the slope-intercept form: y - 1 = (1-1)/(3-1)(x-3) => y = -x/2 + 2

Now, we can find the points of intersection of the two lines:

x = 1, y = -x/2 + 2 => (1, 3/2)

Using the disk method, we can find the volume of the solid as follows:

V = ∫[1,3] πy² dx

= ∫[1,3] π(-x/2 + 2)² dx

= π∫[1,3] (x²- 4x + 4)dx/4

= π[(x³/3 - 2x² + 4x)] [1,3]/4

= π(3/4)

= 0.75π

Hence, volume of the solid created is 2.356 cubic units. Answer is closest to option B.

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The system of recurrence relations is:

[tex]$a_n = 4a_{n-1}$[/tex] for [tex]$n \geq 2$[/tex], with initial conditions [tex]$a_1 = 0$[/tex] (there are no 2's in a 1-digit sequence) and [tex]$a_2 = 1$[/tex] (the only 2-digit sequence that satisfies the conditions is 23).

Let[tex]$a_n$[/tex] be the number of n-digit quaternary sequences that contain an even number of 2's and an odd number of 3's. We can find a recurrence relation for [tex]$a_n$[/tex] as follows:

Case 1: The last digit is 0, 1, or 3. In this case, the parity of the number of 2's and 3's in the sequence remains the same. Therefore, the number of (n-1)-digit sequences that satisfy the conditions is [tex]$a_{n-1}$[/tex].

Case 2: The last digit is 2. In this case, the parity of the number of 2's changes from even to odd, and the parity of the number of 3's remains odd. Therefore, the number of (n-1)-digit sequences that end in 0, 1, or 3 and satisfy the conditions is [tex]$3a_{n-1}$[/tex], and the number of (n-1)-digit sequences that end in 2 and have an even number of 2's and an even number of 3's is $a_{n-1}$. Therefore, the number of n-digit sequences that end in 2 and satisfy the conditions is [tex]$a_n = 3a_{n-1} + a_{n-1} = 4a_{n-1}$[/tex].

Therefore, the system of recurrence relations is:

[tex]$a_n = 4a_{n-1}$[/tex] for [tex]$n \geq 2$[/tex], with initial conditions [tex]$a_1 = 0$[/tex] (there are no 2's in a 1-digit sequence) and [tex]$a_2 = 1$[/tex] (the only 2-digit sequence that satisfies the conditions is 23).

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The homogeneous solution is y_H(x) = C1*cos(2x) + C2*sin(2x)

Given the differential equation y" + 4y = cos(2x), you want to find the homogeneous solution y_H.

To find the homogeneous solution y_H, we need to solve the homogeneous differential equation y" + 4y = 0.

Step 1: Identify the characteristic equation.
The characteristic equation is given by r^2 + 4 = 0, where r represents the roots.

Step 2: Solve the characteristic equation.
To solve the equation r^2 + 4 = 0, we get r^2 = -4. Taking the square root of both sides, we obtain r = ±2i.

Step 3: Write the general solution for the homogeneous equation.
Since we have complex conjugate roots, the general homogeneous solution y_H can be written as:

y_H(x) = C1*cos(2x) + C2*sin(2x)
Here, C1 and C2 are constants determined by the initial conditions.

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Answer:

38

Step-by-step explanation:

To solve this problem, we need to first subtract the processing fee from the total cost, which gives us $487.92. Then, we can calculate the admission price by dividing this amount by 1.07 (1 + 7% sales tax), which gives us $456.00. Finally, we can divide the admission price by the cost per ticket ($12.00) to find the number of students: 456 ÷ 12 = 38 students. Therefore, 38 students went on the field trip to the history museum.

Steps:

1.07 (1 + 7% sales tax), which gives us $456.00. Finally, we can divide the admission price by the cost per ticket ($12.00) to find the number of students: 456 ÷ 12 = 38

If this helps please give brainlest I'm trying to get genuis.

Answer:

38

Step-by-step explanation:

got it right on edge

To eliminate the connective from a biconditional like (P& R) ≡ Q and derive either part of the compound, you must know that either the left side (P&R) is true or the right side Q is true.

Therefore, options b and e apply. Option a is not necessarily true as the biconditional could be false. Option c is only applicable for deriving the truth of Q, not the left side.

Option d and f are incorrect answers and choosing them carries a penalty of one point per answer chosen.

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The surface represented by the equation y = 6z² - 6x² is an elliptic paraboloid, which can be sketched using traces.

To sketch the surface using traces, we can fix one of the variables and let the other two vary. For example, if we fix x at a constant value and vary z and y, we get a set of parabolas that open upward or downward depending on the sign of x. If we fix y at a constant value and vary x and z, we get a set of hyperbolas that open along the x and z axes.

By combining these traces, we can visualize the shape of the surface as an elliptic paraboloid, which is a three-dimensional shape that resembles a shallow bowl or dish. The elliptic paraboloid has a single axis of symmetry and its cross sections in the xz-plane are all parabolas.

Therefore, the surface represented by the equation y = 6z² - 6x² is an elliptic paraboloid, which can be sketched using traces.

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Answer:

29

Step-by-step explanation:

145 mile use 5 gallon

so 145÷ by 5 will be 29 which means 29 mile per gallon

The absolute maximum of f(x) on [−1, 3] is (−1, 11), and the absolute minimum is (2, −5)

To find the absolute maximum and minimum of a function on a closed interval [a, b], we need to evaluate the function at its critical points (where the derivative is zero or undefined) and at the endpoints of the interval, and then compare the values.

First, we find the derivative of f(x):

f'(x) = 3x^2 - 4x - 4

Setting f'(x) = 0 to find the critical points:

3x^2 - 4x - 4 = 0

Using the quadratic formula, we get:

x = (-(-4) ± sqrt((-4)^2 - 4(3)(-4)))/(2(3))

x = (-(-4) ± sqrt(64))/6

x = (-(-4) ± 8)/6

x = -2/3 or x = 2

Next, we evaluate f(x) at the critical points and the endpoints of the interval:

f(-1) = 11

f(3) = 10

f(-2/3) = 22/27

f(2) = -5

Therefore, the absolute maximum of f(x) on [−1, 3] is (−1, 11), and the absolute minimum is (2, −5)

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The absolute maximum of f(x) on [−1, 3] is (−1, 11), and the absolute minimum is (2, −5)

To find the absolute maximum and minimum of a function on a closed interval [a, b], we need to evaluate the function at its critical points (where the derivative is zero or undefined) and at the endpoints of the interval, and then compare the values.

First, we find the derivative of f(x):

f'(x) = 3x^2 - 4x - 4

Setting f'(x) = 0 to find the critical points:

3x^2 - 4x - 4 = 0

Using the quadratic formula, we get:

x = (-(-4) ± sqrt((-4)^2 - 4(3)(-4)))/(2(3))

x = (-(-4) ± sqrt(64))/6

x = (-(-4) ± 8)/6

x = -2/3 or x = 2

Next, we evaluate f(x) at the critical points and the endpoints of the interval:

f(-1) = 11

f(3) = 10

f(-2/3) = 22/27

f(2) = -5

Therefore, the absolute maximum of f(x) on [−1, 3] is (−1, 11), and the absolute minimum is (2, −5)

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The civil engineer can build his house on a rectangular platform of 10 meters long by 8 meters wide with a corridor of uniform width of 2.05 meters.

Let's call the width of the corridor "w". Since the corridor runs around the perimeter of the rectangle, we can calculate its total area by subtracting the area of the house from the area of the rectangle:

Total area of corridor = Area of rectangle - Area of house

Total area of corridor = 80 - 48

Total area of corridor = 32 square meters

Now we can use the formula for the area of a rectangle to calculate the width of the corridor:

Area of rectangle = length x width

Total area of corridor = (10 + 2w) x (8 + 2w) - 80

32 = 2w² + 36w

2w² + 36w - 32 = 0

We can solve this quadratic equation using the quadratic formula:

w = (-b ± √(b² - 4ac)) / 2a

where a = 2, b = 36, and c = -32. Plugging these values into the formula, we get:

w = (-36 ± √(36² - 4(2)(-32))) / 4

w = (-36 ± √(1680)) / 4

w ≈ 2.05 or w ≈ -8.05

Since the width of the corridor cannot be negative, we can disregard the negative solution and conclude that the width of the corridor is approximately 2.05 meters.

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Complete Question:

A Civil Engineer wants to build his house downtown of a rectangular  platform of 10 meters long by 8 meters wide, the area of ​​the house is 48 square meters, the part not built is a corridor of uniform width. How many meters is the width of the hallway?

The final result of the expression c(a + b)(a - b)  is ca^2 - cb^2.

Using the distributive property, we can expand the expression as follows:

c(a + b)(a - b) = ca(a - b) + cb(a - b)

Then, using the distributive property again, we can simplify each term:

ca(a - b) = ca^2 - cab

cb(a - b) = -cb^2 + cab

Putting the terms together, we get:

c(a + b)(a - b) = ca^2 - cab - cb^2 + cab

The terms cab and -cab cancel each other out, leaving us with:

c(a + b)(a - b) = ca^2 - cb^2

Therefore, the final result of the expression is ca^2 - cb^2.

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Part A:

The scale of the line plot should have 0 as its least data value and 4 as its greatest data value.

Part B:

There will be 11 dots above 1.

There will be 6 dots above 4.

There will be three dots above 3.

A line plot, also known as a dot plot, is a type of graph that is used to display and organize small sets of data.

It consists of a number line with dots or Xs placed above each value to represent the frequency or count of that value in the data set.

Line plots are useful for quickly visualizing the distribution of data and identifying the most common values or outliers.

They are especially helpful when the data set is small and discrete, meaning that the values are distinct and separate, rather than continuous.

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Answer:

y = 7x

Step-by-step explanation:

The equation is y = mx + b

m = the slope

b = y-intercept

m = 7

The Y-intercept is located at (0,0)

So, the equation is y = 7x

The eigenvalues of the coefficient matrix A, find an eigenvector corresponding to the eigenvalue with a positive imaginary part, and the general solution of the given system dx/dt = 7x + 13y and dy/dt = -2x + 9y.

1. Eigenvalues of the coefficient matrix A:
The coefficient matrix A is:
|  7  13 |
| -2   9 |

To find the eigenvalues, we need to solve the characteristic equation, which is:
| (7 - λ) (9 - λ) - (-2)(13) | = 0
Solving this equation, we find the eigenvalues λ = 5 ± 6i.

2. Eigenvector corresponding to the eigenvalue with positive imaginary part:
Let's choose the eigenvalue λ = 5 + 6i. Now we need to solve the system (A - λI)v = 0, where v is the eigenvector.

| (2 - 6i)  13   | |x|   |0|
|  -2      (4 - 6i)| |y| = |0|

Solving this system, we find an eigenvector v = k(3 + 2i, 1), where k is a constant.

3. General solution of the given system:
The general solution can be expressed as:
X(t) = e^(5t) * (C1 * cos(6t) + C2 * sin(6t)) * (3 + 2i, 1)

Where C1 and C2 are constants determined by the initial conditions.

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If sofia has a collection of 200 coins, 40 coins represent 20% of Sofia's collection.

To find out how many coins represent 20% of Sofia's collection, we need to first calculate what 1% of her collection is.

To do this, we can divide the total number of coins by 100:

1% of Sofia's collection = 200 coins ÷ 100 = 2 coins

Now that we know that 1% of her collection is 2 coins, we can find 20% by multiplying 2 by 20:

20% of Sofia's collection = 2 coins × 20 = 40 coins

Therefore, 40 coins represent 20% of Sofia's collection.

To find out what percentage a different number of coins represents, we can use the same method. For example, if we want to know what percentage 30 coins represent, we can divide 30 by 2 (since 2 coins represent 1%), which gives us 15%.

So, 30 coins represent 15% of Sofia's collection.

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Step-by-step explanation:

x=3 y=7

-3 -7

x-3=0 y-7=0

r = 5

(x-3)² + (y-7)² = 25

using the rule (a - b)² = a² - 2ab + b²

x² - 6x + 9 + y² - 14y + 49 = 25

x² - 6x + y² - 14y + 58 = 25

-25 -25

x² - 6x + y² - 14y + 33 = 0

Miss kito wins the 45 games and Mr. Fishman wins the 36 games.

(a) The setup of the equations is:

3.5%x + 5.75% ($ 780,000 - x) = $33,600

(b) The farmer invested $500,000 at 3.5% and $280,000 at 5.75%

Miss Kito and Mr. Fishman played 81 games of their favorite 2-player game, 7 Wonders Duel.

We have to find the how many games did they each win?

Let's Miss Kito wins 'x' games

So, the equation will be:

x + (x - 9) = 81

2x - 9 = 81

2x = 90

x = 45

And, Mr. Fishman = 45 - 9 = 36

Miss kito wins the 45 games and Mr. Fishman wins the 36 games.

(a) A farmer bought a scratch ticket and found out later that he won $1,200,000. After 35% was deducted for income taxes he invested the rest; some at 3.5% and some at 5.75% .

$1,200,000 × (1 - 3.5%)= $780,000

Suppose that he invested x at 35%

and ($ 780,000 - x) at 5.75%

3.5%x + 5.75% ($ 780,000 - x) = $33,600

(b) 3.5% + 5.75%($ 780,000 - x) = $33,600

3.5%x - 5.75% + 44,850 = 33,600

2.25%x = $11,250

x = $500,000

=> $780,000 - $500,000

= $280,000

So, the farmer invested $500,000 at 3.5% and $280,000 at 5.75%

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The given question is incomplete, complete question is :

Miss Kito and Mr. Fishman played 81 games of their favorite 2-player game, 7 Wonders Duel. Miss KIto ultimately won 9 more games than Mr. Fish did. How many games did they each win?

A farmer bought a scratch ticket and found out later that he won $1,200,000. After 35% was deducted for income taxes he invested the rest; some at 3.5% and some at 5.75% . If the annual interest earned from his investments is $33,600 find the amount he invest at each rate.

a. Define variables to represent the unknowns and setup the necessary equations to answer the question.

b. [4 points] Algebraically solve the equation you created and express your final answer using a complete sentence and appropriate units. (You will not receive full credit if a trial and error method is used in place of an algebraic method.)

The unique solution that satisfies the initial value problem [tex]y^{(4)}[/tex] = -2sint and the initial conditions y(0) = 0, y'(0) = 1, y''(0) = 0, and y'''(0) = -2 is y(t) = 2sin(t)/3 - [tex]t^{3}[/tex] + t.

To solve the initial value problem [tex]y^{(4)}[/tex] = -2sint, we need to find the function y(t) that satisfies the given differential equation and the initial conditions.

To do this, we can integrate the given equation four times with respect to t, since y^(4) represents the fourth derivative of y(t):

y'''(t) = -2cost + [tex]C_{1}[/tex]
y''(t) = 2sint + [tex]C_{1}[/tex]t +[tex]C_{2}[/tex]
y'(t) = -2cost/3 +[tex]C_{1}[/tex][tex]t^{2/2}[/tex] + [tex]C_{2}[/tex]t + [tex]C_{3}[/tex]
y(t) = 2sint/3 +[tex]C_{1}[/tex][tex]t^{3/6}[/tex] + [tex]C_{2}[/tex][tex]t^{2/2}[/tex] + [tex]C_{3}[/tex]t + [tex]C_{4}[/tex]


Since the initial value problem does not specify the initial conditions, we cannot find the exact values of these constants. However, we can use the general solution above to illustrate how to apply initial conditions to solve for y(t).

For example, suppose we are given the initial conditions y(0) = 0, y'(0) = 1, y''(0) = 0, and y'''(0) = -2. To find the values of [tex]C_{1}[/tex], [tex]C_{2}[/tex], [tex]C_{3}[/tex] and [tex]C_{4}[/tex] that satisfy these conditions, we can substitute t = 0 into the general solution and its derivatives:

y(0) = 2sin0/3 +[tex]C_{1}[/tex](0[tex])^{3/6}[/tex] +[tex]C_{2}[/tex](0[tex])^{2/2}[/tex] + [tex]C_{3}[/tex](0) +[tex]C_{4}[/tex] = [tex]C_{4}[/tex]= 0
y'(0) = -2cos0/3 + [tex]C_{1}[/tex](0[tex])^{2/2}[/tex] + [tex]C_{2}[/tex](0) + [tex]C_{3}[/tex] = [tex]C_{3}[/tex] + [tex]C_{2}[/tex] = 1
y''(0) = 2sin0 + [tex]C_{1}[/tex](0) + [tex]C_{2}[/tex] = [tex]C_{2}[/tex] = 0
y'''(0) = -2cos0 + [tex]C_{1}[/tex]=[tex]C_{1}[/tex]= -2

Therefore, the unique solution that satisfies the initial value problem [tex]y^{(4)}[/tex]= -2sint and the initial conditions y(0) = 0, y'(0) = 1, y''(0) = 0, and y'''(0) = -2 is:

y(t) = 2sin(t)/3 - [tex]t^{3}[/tex] + t

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The required answer is he equilibrium price will be $8, and the equilibrium quantity will be 320 units.

After the introduction of the new desalination technology, the market supply curve will shift to the right, since firms will be able to produce more water at a lower cost. The new supply curve will be given by:

! = 5P + (8 * quantity) - 5

This is because the cost of producing each unit of water has now increased by $8, but the supply function remains the same.  specifically general equilibrium theory, a perfect market, also known as an atomistic market, is defined by several idealizing conditions, collectively called perfect competition, or atomistic competition. In theoretical models where conditions of perfect competition hold, it has been demonstrated that a market will reach an equilibrium in which the quantity supplied for every product or service, including labor, equals the quantity demanded at the current price

To find the equilibrium price and quantity, we need to set the new supply curve equal to the demand curve:

400 - 10P = 5P + (8 * quantity) - 5

Simplifying and solving for P:

15P = 405 + 8Q

P = 27 + (8/15)Q

Next, we substitute this expression for P into either the demand or supply curve and solve for Q. Let's use the demand curve:

400 - 10(27 + (8/15)Q) = Q + 5

Simplifying:

Q = 60

Therefore, the equilibrium quantity is 60 units of water, and the equilibrium price can be found by plugging this quantity into the expression for P:

P = 27 + (8/15)(60) = $43.20
So the equilibrium price is $43.20 per unit of water.

To find the market supply curve after the introduction of the new desalination technology and the equilibrium price and quantity, follow these steps:

Step 1: Determine the new supply curve.
Since the desalination technology allows for unlimited water production at a cost of $8, the new supply curve will be a horizontal line at P = $8. This is because suppliers will be willing to supply any quantity of water at that price.
Step 2: Find the new equilibrium price and quantity.

To find the new equilibrium, we need to determine where the new supply curve intersects the demand curve. The demand curve is given by Qd = 400 - 10P. To find the intersection, set the price P equal to $8 in the demand equation:

Qd = 400 - 10(8)
Qd = 400 - 80
Qd = 320

So, at the equilibrium price of $8, the quantity demanded is 320 units.

In conclusion, the market supply curve after the introduction of the new desalination technology will be a horizontal line at P = $8. The equilibrium price will be $8, and the equilibrium quantity will be 320 units.

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