Problem 2: Four sets are given below.
A= {1,2,3) B={rod, blue) C= {n:n is a positive odd number}
D= (Sally, blue, 2, 4)
(a) Write down the set Ax B.
(b) Write down the sets DNA and DB. Then write down the set (DA)u(DnB).
(e) From the four given sets, identify two which are disjoint.
(d) If S = {n: n is a positive whole number) is your universal set, describe the set C".
(e) Is A C? If no, what element(s) could you remove from A to make "ACC" a true statement?

Application of Simple Algorithm - Big M Method to solve linear programming problems with given constraints and objective functions.

The Simple Algorithm - Big M Method is a technique used to solve linear programming problems with both equality and inequality constraints.

In problem (a), we have a maximization problem with three variables (x1, x2, x3) and two equality constraints and non-negativity constraints.

The algorithm involves introducing slack variables, converting the problem into standard form, and using a Big M parameter to handle unrestricted variables.

The objective function is maximized by iteratively improving the solution until an optimal solution is reached.

In problem (b), we have a minimization problem with two variables (x1, x2) and two inequality constraints.

The procedure is similar, where surplus variables are introduced to convert the problem into standard form, and the Big M method is used to handle non-negativity constraints.

The objective function is minimized by following the steps of the algorithm.

By applying the Simple Algorithm - Big M Method to these problems, we can find the optimal solutions that satisfy the given constraints and optimize the objective function.

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The result of the whole-number exponent expressions are

a.  16

b.  -27

c.  16

d.  25

e.  -243

f. 64

Using the definition of whole-number exponent, we can multiply the base integer by itself as many times as the exponent indicates.

For positive exponents, the result is a repeated multiplication of the base. For negative exponents, the result is the reciprocal of the repeated multiplication.

a. 2⁴ = 2 * 2 * 2 * 2 = 16

b. (-3)³ = (-3) * (-3) * (-3) = -27

c. (-2)⁴ = (-2) * (-2) * (-2) * (-2) = 16

d. (-5)² = (-5) * (-5) = 25

e. (-3)⁵ = (-3) * (-3) * (-3) * (-3) * (-3) = -243

f. (-2)⁶ = (-2) * (-2) * (-2) * (-2) * (-2) * (-2) = 64

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The values are 16, -27, 26, 25, -243, 64

Using the extended definition of a whole-number exponent, we can find the values as follows:

a. 2^4 = 2 × 2 × 2 × 2 = 16

b. (-3)^3 = (-3) × (-3) × (-3) = -27

c. (-2)^4 = (-2) × (-2) × (-2) × (-2) = 16

d. (-5)^2 = (-5) × (-5) = 25

e. (-3)^5 = (-3) × (-3) × (-3) × (-3) × (-3) = -243

f. (-2)^6 = (-2) × (-2) × (-2) × (-2) × (-2) × (-2) = 64

So the values are:

a. 2^4 = 16

b. (-3)^3 = -27

c. (-2)^4 = 16

d. (-5)^2 = 25

e. (-3)^5 = -243

f. (-2)^6 = 64

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Given a linear transformation T in L(F2) such that T(x, y) = (y, x) and it has the same eigenvalues as ST.

We need to find all eigenvalues and eigenvectors of T.

[tex]Solution: Since T is a linear transformation in L(F2) such that T(x, y) = (y, x),[/tex]

let us consider T(1, 0) and T(0, 1) respectively.

[tex]T(1, 0) = (0, 1) and T(0, 1) = (1, 0).For any (x, y) in F2, it can be written as (x, y) = x(1, 0) + y(0, 1).[/tex]

Therefore, T(x, y) = T(x(1, 0) + y(0, 1)) = xT(1, 0) + yT(0, 1) = x(0, 1) + y(1, 0) = (y, x)

[tex]Thus, the matrix of T with respect to the standard ordered basis B of F2 is given by A = [T]B = [T(1, 0) T(0, 1)] = [0 1; 1 0][/tex]

The eigenvalues and eigenvectors of A are calculated as follows: We find the eigenvalues as:|A - λI| = 0⇒ |[0-λ 1;1 0-λ]| = 0⇒ λ2 - 1 = 0⇒ λ1 = 1 and λ2 = -1

Therefore, the eigenvalues of T are 1 and -1.

Now, we find the eigenvectors of T corresponding to each eigenvalue.

[tex]For eigenvalue λ1 = 1, we have(A - λ1I)X = 0⇒ [0 1; 1 0]X = [0;0]⇒ x2 = 0 and x1 = 0or, X1 = [0;0][/tex]is the eigenvector corresponding to λ1 = 1.

For eigenvalue λ2 = -1, we have(A - λ2I)X = 0⇒ [0 1; 1 0]X = [0;0]⇒ x2 = 0 and x1 = 0or, X2 = [0;0] is the eigenvector corresponding to λ2 = -1.

Since T has only two eigenvectors {X1, X2}, therefore the diagonal matrix D = [Dij]2x2 with diagonal entries as the eigenvalues (λ1, λ2) and the eigenvectors as its columns (X1, X2) such that A = PDP^-1where, P = [X1 X2].

[tex]Then, the eigenvalues and eigenvectors of T are given by λ1 = 1, λ2 = -1 and X1 = [1;0], X2 = [0;1] respectively.[/tex]

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Answer:

(-3,0),(-2,1),(-1,0),(0,-3),(-5,-8)

Step-by-step explanation:

The value of xy is -54

To simplify the expression √63 − 36√3, we need to simplify each term separately and then subtract the results.

1. Simplify √63:
We can factorize 63 as 9 * 7. Taking the square root of each factor, we get √63 = √(9 * 7) = √9 * √7 = 3√7.

2. Simplify 36√3:
We can rewrite 36 as 6 * 6. Taking the square root of 6, we get √6. Therefore, 36√3 = 6√6 * √3 = 6√(6 * 3) = 6√18.

3. Subtract the simplified terms:
Now, we can substitute the simplified forms back into the original expression:
√63 − 36√3 = 3√7 − 6√18.

Since the terms involve different square roots (√7 and √18), we can't combine them directly. But we can simplify further by factoring the square root of 18.

4. Simplify √18:
We can factorize 18 as 9 * 2. Taking the square root of each factor, we get √18 = √(9 * 2) = √9 * √2 = 3√2.

Substituting this back into the expression, we have:
3√7 − 6√18 = 3√7 − 6 * 3√2 = 3√7 − 18√2.

5. Now, we can express the expression as x y√3:
Comparing the simplified expression with x y√3, we can see that x = 3, y = -18.

Therefore, the value of xy is 3 * -18 = -54.

So, the correct answer is not provided in the given options.

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Answer:

x - intercepts are x = - 3, x = 2 , y- intercept = - 6

Step-by-step explanation:

the x- intercepts are the points on the x- axis where the graph of f(x) crosses the x- axis.

any point on the x- axis has a y- coordinate of zero.

let y = f(x) = 0 and solve for x, that is

x² + x - 6 = 0

consider the factors of the constant term (- 6) which sum to give the coefficient of the x- term (+ 1)

the factors are + 3 and - 2 , since

3 × - 2 = - 6 and 3 - 2 = - 1 , then

(x + 3)(x - 2) = 0 ← in factored form

equate each factor to zero and solve for x

x + 3 = 0 ( subtract 3 from both sides )

x = - 3

x - 2 = 0 ( add 2 to both sides )

x = 2

the x- intercepts are x = - 3 and x = 2

the y- intercept is the point on the y- axis where the graph of f(x) crosses the y- axis.

any point on the y- axis has an x- coordinate of zero

let x = 0 in y = f(x)

f(0) = 0² + 0 - 6 = 0 + 0 - 6 = - 6

the y- intercept is y = - 6

Answer:

P(rolling a 3) = 1/6

The 1 goes in the green box.

Answer:

S₅₀ = 912.5

Step-by-step explanation:

the sum of n terms of an arithmetic sequence is

[tex]S_{n}[/tex] = [tex]\frac{n}{2}[/tex] [ 2a₁ + (n - 1)d ]

where a₁ is the first term and d the common difference

here a₁ = 6 and d = [tex]\frac{1}{2}[/tex] , then

S₅₀ = [tex]\frac{50}{2}[/tex] [ (2 × 6) + (49 × [tex]\frac{1}{2}[/tex]) ]

    = 25(12 + 24.5)

    = 25 × 36.5

    = 912.5

The sum of the first 5 term of the sequence 3,9,27 is 363.

Given the sequence in the question:

3, 9, 27

Since it is increasing geometrically, it is a geometric sequence.

Let the first term be:

a₁ = 3

Common ratio will be:

r = 9/3 = 3

Number of terms n = 5

The sum of a geometric sequence is expressed as:

[tex]S_n = a_1 * \frac{1 - r^n}{1 - r}[/tex]

Plug in the values:

[tex]S_n = a_1 * \frac{1 - r^n}{1 - r}\\\\S_n = 3 * \frac{1 - 3^5}{1 - 3}\\\\S_n = 3 * \frac{1 - 243}{1 - 3}\\\\S_n = 3 * \frac{-242}{-2}\\\\S_n = 3 * 121\\\\S_n = 363[/tex]

Therefore, the sum of the first 5th terms is 363.

Option B) 363 is the correct answer.

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a) The region D can be described as a type I region with 0 ≤ x ≤ 2 and 0 ≤ y ≤ 2 - x, and as a type II region with 0 ≤ y ≤ 2 and 0 ≤ x ≤ 2 - y. The region D is the triangular region below the line y = x, bounded by the x-axis, y-axis, and the line x + y = 2.

b) To evaluate the double integral ∬ D ​3ydA, we will use the order of integration dydx.

a) A type I region is characterized by a fixed interval of one variable (in this case, x) and the other variable (y) being dependent on the fixed interval. In the given problem, when 0 ≤ x ≤ 2, the corresponding interval for y is given by 0 ≤ y ≤ 2 - x, as determined by the equation x + y = 2. Therefore, the region D can be expressed as a type I region with 0 ≤ x ≤ 2 and 0 ≤ y ≤ 2 - x.

Alternatively, a type II region is defined by a fixed interval of one variable (y) and the other variable (x) being dependent on the fixed interval. In this case, when 0 ≤ y ≤ 2, the corresponding interval for x is given by 0 ≤ x ≤ 2 - y. Thus, the region D can also be represented as a type II region with 0 ≤ y ≤ 2 and 0 ≤ x ≤ 2 - y.

Overall, the region D is a triangular region that lies below the line y = x, bounded by the x-axis, y-axis, and the line x + y = 2.

b) To evaluate the double integral ∬ D ​3ydA, we need to determine the order of integration. The choice of the order depends on the nature of the region and the integrand.

In this case, since the region D is a triangular region and the integrand is 3y, it is more convenient to use the order of integration dydx. This means integrating with respect to y first and then with respect to x. The limits of integration for y are 0 to 2 - x, and the limits of integration for x are 0 to 2.

By integrating 3y with respect to y over the interval [0, 2 - x], and then integrating the result with respect to x over the interval [0, 2], we can evaluate the given double integral.

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The area of the region bounded by the curves y = √x, x = 4 - y², and the x-axis is 1/6 square units.

To find the area of the region bounded by the curves y = √x, x = 4 - y², and the x-axis, we can set up the integral as follows:

A = ∫[a,b] (f(x) - g(x)) dx

where f(x) is the upper curve and g(x) is the lower curve.

In this case, the upper curve is y = √x and the lower curve is x = 4 - y².

To find the limits of integration, we set the two curves equal to each other:

√x = 4 - y²

Solving for y, we get:

y = ±√(4 - x)

To find the limits of integration, we need to determine the x-values at which the curves intersect.

Setting √x = 4 - y², we have:

x = (4 - y²)²

Substituting y = ±√(4 - x), we get:

x = (4 - (√(4 - x))²)²

Expanding and simplifying, we have:

x = (4 - (4 - x))²

x = x²

This gives us x = 0 and x = 1 as the x-values of intersection.

So, the limits of integration are a = 0 and b = 1.

Now, we can calculate the area using the integral:

A = ∫[0,1] (√x - (4 - y²)) dx

To simplify the integral, we need to express (4 - y²) in terms of x.

From the equation y = ±√(4 - x), we can solve for y²:

y² = 4 - x

Substituting this into the integral, we have:

A = ∫[0,1] (√x - (4 - 4 + x)) dx

A = ∫[0,1] (√x - x) dx

Integrating, we get:

A = [(2/3)x^(3/2) - (1/2)x²] evaluated from 0 to 1

A = (2/3 - 1/2) - (0 - 0)

A = 1/6

Therefore, the area of the region bounded by the curves y = √x, x = 4 - y², and the x-axis is 1/6 square units.

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Answer:

15 hours in a day on Saturn.

Step-by-step explanation:

Let's use "x" to represent the number of hours in a day on Neptune:

- According to the information given, a day on Saturn lasts 0.6875 times as long as a day on Neptune. This means that the number of hours in a day on Saturn is 0.6875x.

- The number of hours in a day on Saturn is 3 more than half the number of hours in a day on Neptune. Using algebra, we can write this as: 0.5x + 3 = 0.6875x.

- Solving for "x", we get x = 24. Therefore, there are 24 hours in a day on Neptune.

- Plugging in x = 24 in the equation 0.5x + 3 = 0.6875x, we get 15 hours. Therefore, there are 15 hours in a day on Saturn.

Considering the definition of a line, the slope of the line x-2y+5=0 is 1/2.

A linear equation o line can be expressed in the form y = mx + b

where

In this case, the line is x-2y+5=0. Expressed in the form y = mx + b, you get:

x-2y=-5

-2y=-5-x

y= (-x-5)÷ (-2)

y= 1/2x +5/2

where:

Finally, the slope of the line x-2y+5=0 is 1/2.

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Considering the definition of a line, the slope of the line x-2y+5=0 is 1/2.

A linear equation o line can be expressed in the form y = mx + b

where

x and y are coordinates of a point.

m is the slope.

b is the ordinate to the origin. The ordinate to the origin is the point where a line crosses the y-axis.

Slope of the line x-2y+5=0

In this case, the line is x-2y+5=0. Expressed in the form y = mx + b, you get:

x-2y=-5

-2y=-5-x

y= (-x-5)÷ (-2)

y= 1/2x +5/2

where:

the slope is 1/2.

the ordinate to the origin is 5/2

Finally, the slope of the line x-2y+5=0 is 1/2.

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(i) Interior points: (-10, 5); Accumulation points: [-10, 5]; Isolated points: {7, 8}.

(ii) Interior points: None; Accumulation points: None; Isolated points: None.

(iii) A=[−10,5)∪{7,8} is neither open nor closed.

i. For set A=[−10,5)∪{7,8}, the interior points are the points within the set that have open neighborhoods entirely contained within the set. In this case, the interior points are the open interval (-10, 5), excluding the endpoints. This means that any number within this interval can be an interior point.

The accumulation points, also known as limit points, are the points where any neighborhood contains infinitely many points from the set. In the case of A, the accumulation points are the closed interval [-10, 5], including the endpoints. This is because any neighborhood around these points will contain infinitely many points from the set.

The isolated points are the points that have neighborhoods containing only the point itself, without any other points from the set. In the set A, the isolated points are {7, 8} because each of these points has a neighborhood that contains only the respective point.

ii. To determine whether A = [-10, 5) ∪ {7, 8} is an open or closed set, we can consider its complement, A complement = (-∞, -10) ∪ (5, 7) ∪ (8, ∞).

From the complement, we observe that it is a union of open intervals, which implies that A is a closed set. This is because the complement of a closed set is open, and vice versa.

Therefore, A = [-10, 5) ∪ {7, 8} is a closed set.

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The concept of closeness between the two curves u(t) and 2 is determined by the condition that they have the same end points u(a) = 2(a) and u(b) = 2(b).

When considering the concept of closeness between two curves, it is important to examine their behavior at the end points. In this case, we are comparing the curves u(t) and 2, and we have the condition that they share the same end points u(a) = 2(a) and u(b) = 2(b).

This condition implies that at the points a and b, the values of the curve u(t) are equal to the constant value 2 multiplied by the respective points a and b. Essentially, this means that the curve u(t) is directly proportional to the constant curve 2, with the proportionality factor being the respective points a and b.

In other words, the curve u(t) is a linear transformation of the curve 2, where the points a and b determine the scaling factor. This scaling factor determines how closely the curve u(t) follows the curve 2. If the scaling factor is close to 1, the two curves will closely align, indicating a high degree of closeness. Conversely, if the scaling factor deviates significantly from 1, the two curves will diverge, indicating a lower degree of closeness.

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A graph of the resulting triangles after a reflection over the line y = -1 and over the y-axis is shown in the images below.

In Mathematics, a reflection across the line y = k and y = -1 can be modeled by the following transformation rule:

(x, y)                                    →              (x, 2k - y)

(x, y)                                    →              (x, -2 - y)

Ordered pair A (0, 2)    →        Ordered pair A' (0, -4).

Ordered pair B (-8, 8)    →        Ordered pair B' (-8, -10).

Ordered pair C (0, 8)    →        Ordered pair C' (0, -10).

By applying a reflection over the y-axis to the coordinate of the given triangle ABC, we have the following coordinates for triangle A"B"C":

(x, y)                                              →                 (-x, y).

Ordered pair A (0, 2)    →        Ordered pair A" (0, 2).

Ordered pair B (-8, 8)    →        Ordered pair B" (8, 8).

Ordered pair C (0, 8)    →        Ordered pair C" (0, 8).

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Set S is not a basis because it does not satisfy the requirements for linear independence and spanning the vector space.

For a set of vectors to be a basis, it must satisfy two conditions: linear independence and spanning the vector space.

a) Set S = {(6, -5), (6, 4), (-5, 4)}: To determine if this set is a basis, we need to check if the vectors are linearly independent and if they span the vector space. We can do this by forming a matrix with the vectors as columns and performing row reduction. If the row-reduced form has a pivot in each row, then the vectors are linearly independent.

Constructing the matrix [6 -5; 6 4; -5 4] and performing row reduction, we find that the row-reduced form has only two pivots, indicating that the vectors are linearly dependent. Therefore, set S is not a basis.

b) Set S = {(5, 2, -3), (-10, -4, 6), (5, 2, -3)}: Similar to the previous set, we need to check for linear independence and spanning the vector space. By forming the matrix [5 2 -3; -10 -4 6; 5 2 -3] and performing row reduction, we find that the row-reduced form has only two pivots, indicating linear dependence. Therefore, set S is not a basis.

In both cases, the sets of vectors fail to meet the criteria of linear independence. As a result, they cannot form a basis for the vector space.

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The factory's total cost function is $20x - $50 and Average cost function is (20x - 50) / x

Henry works in a fireworks factory and can make 20 fireworks an hour. He earns $10 for the first five hours and $20 for each additional hour after that. The factory's total cost function is a linear function that has two segments. One segment will represent the cost of the first five hours worked, while the other segment will represent the cost of each hour after that.

The cost of the first five hours is $10 per hour, which means that the total cost is $50 (5 x $10). After that, each hour costs $20. Therefore, if Henry works for "x" hours, the total cost of his work will be:

Total cost function = $50 + $20 (x - 5)

Total cost function = $50 + $20x - $100

Total cost function = $20x - $50

Average cost is the total cost divided by the number of hours worked. Therefore, the average cost function is:

Average cost function = total cost function / x

Average cost function = (20x - 50) / x

Now, let's graphically depict the curves. The total cost function is a linear function with a y-intercept of -50 and a slope of 20. It will look like this:

On the other hand, the average cost function will start at $10 per hour and decrease as more hours are worked. Eventually, it will approach $20 per hour as the number of hours increases. This will look like this:

By analyzing the graphs, we can observe the relationship between the total cost and the number of hours worked, as well as the average cost at different levels of production.

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Kay buys 12 pounds of apples, and each pound costs $3. Therefore, the total cost of the apples is 12 * $3 = $36 and thus she should receive $4 as change.

Kay buys 12 pounds of apples, and each pound costs $3. Therefore, the total cost of the apples is 12 * $3 = $36. If she gives the cashier two $20 bills, the total amount she has given is $40. To find the change she should receive, we subtract the total cost from the amount given: $40 - $36 = $4. Therefore, Kay should receive $4 in change.

- Kay buys 12 pounds of apples, and each pound costs $3. This means that the cost per pound is fixed at $3, and she buys a total of 12 pounds. Therefore, the total cost of the apples is 12 * $3 = $36.

- If Kay gives the cashier two $20 bills, the total amount she gives is $20 + $20 = $40. This is the total value of the bills she hands over to the cashier.

- To find the change she should receive, we need to subtract the total cost of the apples from the amount given. In this case, it is $40 - $36 = $4. This means that Kay should receive $4 in change from the cashier.

- The change represents the difference between the amount paid and the total cost of the items purchased. In this situation, since Kay gave more money than the cost of the apples, she should receive the difference back as change.

- The calculation of the change is straightforward, as it involves subtracting the total cost from the amount given. The result represents the surplus amount that Kay should receive in return, ensuring a fair transaction.

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For the given quadratic function f(x) = 2x² - 13x - 24 its Vertex = (13/4, -25/8), Largest z-intercept = -24,  Y-intercept = -24.

The standard form of a quadratic function is:

f(x) = ax² + bx + c   where a, b, and c are constants.

To calculate the vertex, we need to use the formula:

h = -b/2a  where a = 2 and b = -13

therefore  

h = -b/2a

= -(-13)/2(2)

= 13/4

To calculate the value of f(h), we need to substitute

h = 13/4 in f(x).f(x) = 2x² - 13x - 24

f(h) = 2(h)² - 13(h) - 24

= 2(13/4)² - 13(13/4) - 24

= -25/8

The vertex is at (h, k) = (13/4, -25/8).

To calculate the largest z-intercept, we need to set

x = 0 in f(x)

z = 2x² - 13x - 24z

= 2(0)² - 13(0) - 24z

= -24

The largest z-intercept is z = -24.

To calculate the y-intercept, we need to set

x = 0 in f(x).y = 2x² - 13x - 24y

= 2(0)² - 13(0) - 24y

= -24

The y-intercept is y = -24.

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The statement "If 0 is the only eigenvalue of A ∈ M₁x3(C), then A = 0" is false.

To demonstrate this, we can provide a counter-example. Consider the following matrix:

A = [0 0 0]

[0 0 0]

In this case, the only eigenvalue of A is 0. However, A is not equal to the zero matrix. Therefore, the statement is false.

The matrix A can have all zero entries, except for the possibility of having non-zero entries in the last row. In such cases, the matrix A will still have 0 as the only eigenvalue, but it won't be equal to the zero matrix. Hence, the statement is not true in general.

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The exact value of cos(90°) using a half-angle identity, is 0.

The half-angle formula states that cos(θ/2) = ±√((1 + cosθ) / 2). By substituting θ = 180° into the half-angle formula, we can determine the exact value of cos(90°).

To find the exact value of cos(90°) using a half-angle identity, we can use the half-angle formula for cosine, which is cos(θ/2) = ±√((1 + cosθ) / 2).

Substituting θ = 180° into the half-angle formula, we have cos(90°) = cos(180°/2) = cos(90°) = ±√((1 + cos(180°)) / 2).

The value of cos(180°) is -1, so we can simplify the expression to cos(90°) = ±√((1 - 1) / 2) = ±√(0 / 2) = ±√0 = 0.

Therefore, the exact value of cos(90°) is 0.

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The option B) yields the highest value for Z, which is 56.5. Therefore, the correct answer is B) x1 = 5, x2 = 5.25, Z = 56.5

To determine the correct answer, we can substitute each option into the objective function and check if the constraints are satisfied. Let's evaluate each option:

A) x1 = 5, x2 = 4.63, Z = 52.78

Checking the constraints:

17x1 + 8x2 = 17(5) + 8(4.63) = 85 + 37.04 = 122.04 ≤ 136 (constraint satisfied)

3x1 + 4x2 = 3(5) + 4(4.63) = 15 + 18.52 = 33.52 ≤ 36 (constraint satisfied)

B) x1 = 5, x2 = 5.25, Z = 56.5

Checking the constraints:

17x1 + 8x2 = 17(5) + 8(5.25) = 85 + 42 = 127 ≤ 136 (constraint satisfied)

3x1 + 4x2 = 3(5) + 4(5.25) = 15 + 21 = 36 ≤ 36 (constraint satisfied)

C) x1 = 5, x2 = 5, Z = 55

Checking the constraints:

17x1 + 8x2 = 17(5) + 8(5) = 85 + 40 = 125 ≤ 136 (constraint satisfied)

3x1 + 4x2 = 3(5) + 4(5) = 15 + 20 = 35 ≤ 36 (constraint satisfied)

D) x1 = 4, x2 = 6, Z = 56

Checking the constraints:

17x1 + 8x2 = 17(4) + 8(6) = 68 + 48 = 116 ≤ 136 (constraint satisfied)

3x1 + 4x2 = 3(4) + 4(6) = 12 + 24 = 36 ≤ 36 (constraint satisfied)

From the calculations above, we see that options B), C), and D) satisfy all the constraints. However, option B) yields the highest value for Z, which is 56.5. Therefore, the correct answer is: B) x1 = 5, x2 = 5.25, Z = 56.5.

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(a) For the recursive definition f(n+1) = -3f(n), f(1) = -9, f(2) = 27, f(3) = -81, f(4) = 243.(b) For the recursive definition f(n+1) = 3f(n) + 4, f(1) = 13, f(2) = 43, f(3) = 133, f(4) = 403.(c) For the recursive definition f(n+1) = f(n)^2 - 3f(n) - 4, f(1) = -2, f(2) = 8, f(3) = 40, f(4) = 1556.

In the given recursive definitions:

(a) For f(n+1)=-3f(n), the function is multiplied by -3 at each step, resulting in alternating signs. This pattern can be observed in the values of f(1)=-9, f(2)=27, f(3)=-81, f(4)=243.(b) For f(n+1)=3f(n)+4, the function is multiplied by 3 and then 4 is added at each step. This leads to an increasing sequence of values. This pattern can be observed in the values of f(1)=7, f(2)=25, f(3)=79, f(4)=241.

(c) For f(n+1)=f(n)^2-3f(n)-4, the function is squared and then subtracted by 3 times itself, followed by subtracting 4. This leads to a more complex pattern in the sequence of values. The values of f(1)=-3, f(2)=-4, f(3)=4, f(4)=20 can be obtained by applying the recursive rule.

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Answer:  EF = 6.5   FG =  5.0

Step-by-step explanation:

Since this is not a right triangle, you must use Law of Sin or Law of Cos

They have given enough info for law of sin :  [tex]\frac{a}{sin A} =\frac{b}{sinB}[/tex]

The side of the triangle is related to the angle across from it.

[tex]\frac{a}{sin A} =\frac{b}{sinB}[/tex]                           >formula

[tex]\frac{FG}{sin E} =\frac{EG}{sinF}[/tex]                           >equation, substitute

[tex]\frac{FG}{sin 39} =\frac{7.9}{sin86}[/tex]                          >multiply both sides by sin 39

[tex]FG =\frac{7.9}{sin86}sin39[/tex]                   >plug in calc

FG = 5.0

<G = 180 - 86 - 39                >triangle rule

<G = 55

[tex]\frac{a}{sin A} =\frac{b}{sinB}[/tex]                            >formula

[tex]\frac{EF}{sin G} =\frac{EG}{sinF}[/tex]                            >equation, substitute

[tex]\frac{EF}{sin 55} =\frac{7.9}{sin86}[/tex]                          >multiply both sides by sin 55

[tex]EF =\frac{7.9}{sin86}sin55[/tex]                   >plug in calc

EF = 6.5

The function that has a period of 4π and an amplitude of 8 is y = 8sin(2θ), which is option (H).

The general form of the equation of a sine function is given as f(θ) = a sin(bθ + c) + d

where, a is the amplitude of the function, the distance between the maximum or minimum value of the function from the midline, b is the coefficient of θ, which determines the period of the function and is calculated as:

Period = 2π / b.c

which is the phase shift of the function, which is calculated as:

Phase shift = -c / bd

which is the vertical shift or displacement from the midline. The period of the function is 4π, and the amplitude is 8. Therefore, the function that meets these conditions is given as:

f(θ) = a sin(bθ + c) + df(θ) = 8 sin(bθ + c) + d

We know that the period is given by:

T = 2π / b

where T = 4π4π = 2π / bb = 1 / 2

The equation now becomes:

f(θ) = 8sin(1/2θ + c) + d

The amplitude of the function is 8. Hence

= 8 or -8

The function becomes:

f(θ) = 8sin(1/2θ + c) + df(θ) = -8sin(1/2θ + c) + d

We can take the positive value of a since it is the one given in the answer options. Also, d is not important since it does not affect the period and amplitude of the function.

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Since {v1, v2, v3} is linearly independent and spans V, it is a basis for V.

To show that {v1, v2, v3} is a basis for V, we need to demonstrate two things: linear independence and spanning.

Linear Independence: We need to show that the vectors v1, v2, and v3 are linearly independent, meaning that no vector in the set can be written as a linear combination of the others. In this case, we can observe that no vector in the set can be expressed as a linear combination of the others because they have distinct components. Each vector has a unique combination of 0s and 1s in its components.

Spanning: We need to show that every vector in V can be expressed as a linear combination of v1, v2, and v3. Since V = F3, every vector in V is a 3-dimensional vector. We can see that by choosing appropriate coefficients for v1, v2, and v3, we can express any 3-dimensional vector in V.

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√x³= ³√x² some values of x.

Let's assume that this equation is true for some value of x. Then:√x³= ³√x²

Cubing both sides gives us: x^(3/2) = x^(2/3)

Multiplying both sides by (2/3) gives: x^(3/2) * (2/3) = x^(2/3)

Multiplying both sides by 3/2 gives us: x^(3/2) = (3/2)x^(2/3)

Thus, we have now determined that if the equation is true for a certain value of x, then it is true for all values of x.

However, the converse is not necessarily true. It's because if the equation is not true for some value of x, then it is not true for all values of x.

As a result, we must investigate if the equation is true for some values of x and if it is false for others.Let's test the equation using a value of x= 4:√(4³) = ³√(4²)2^(3/2) = 2^(4/3)3^(2/3) = 2^(4/3)

There we have it! Because the equation does not hold true for all values of x (i.e. x = 4), we can conclude that the answer is "some values of x."

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If the bank pays 10 per cent interest, he is required to save each year Kshs 174,963.76.

We know that Ruto wants to have Kshs 8 million at the end of 15 years. If he saves a certain amount at the end of each year for the next fifteen years and deposits it in a bank that pays 10 per cent interest.

The formula for future value of an annuity is as follows:

FV = PMT x ((1 + r)n - 1) / r

Where,FV is the future value of an annuity

PMT is the amount deposited each yearr is the interest rate

n is the number of years

Let the amount he saves each year be x.

Therefore, the amount of deposit will be x*15.

The interest rate is 10%,

which means r=10/100

=0.10.

Using the formula of future value of an annuity,

FV = x*15 * ((1 + 0.10)^15 - 1) / 0.10FV

= x*15 * (4.046 - 1)FV

= x*15 * 3.046FV

= 45.69x

From the above, we know that the future value of the deposit after 15 years should be Kshs 8,000,000.

Therefore, we can say that:

45.69x = 8,000,000

x = 8,000,000 / 45.69x

= 174963.76 Kshs, approx.

Ruto is required to save Kshs 174,963.76 each year for the next fifteen years.

Therefore, the total amount he will save in fifteen years is Kshs 2,624,456.4, which when invested in a bank paying 10% interest, will earn him a total of Kshs 8 million in 15 years.

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The true statements are b. f(a) = -2a² + 3a and d. f(-2x) = 8x² + 6x.

Statement b is true because it correctly represents the function f(x) with the variable replaced by 'a'. By substituting 'a' for 'x', we get f(a) = -2a² + 3a, which is the same form as the original function.

Statement d is true because it correctly represents the function f(-2x) with the negative sign distributed inside the parentheses. When we substitute '-2x' for 'x' in the original function f(x), we get f(-2x) = -2(-2x)² + 3(-2x). Simplifying this expression yields f(-2x) = 8x² - 6x.

Therefore, both statements b and d accurately represent the given function f(x) and its corresponding transformations.

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