PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

The area bounded by f(x) = √x and g(x) = x/2 on the interval [0,16] is 64.

To find the area bounded by the given functions, we need to determine the points of intersection. Setting f(x) = g(x), we get:

√x = x/2

Squaring both sides, we get:

x = 0 or x = 16

So the points of intersection are (0,0) and (16,8).

Next, we need to determine which function is on top in the interval [0,16]. We can do this by comparing the values of the two functions at x = 8, which lies in the middle of the interval. We have:

f(8) = √8 = 2√2

g(8) = 8/2 = 4

Since f(8) < g(8), the function g(x) is on top in the interval [0,16]. Therefore, the area bounded by the two functions is given by:

∫[0,16] (g(x) - f(x)) dx

= ∫[0,16] (x/2 - √x) dx

= [x^2/4 - (2/3)x^(3/2)] [0,16]

= (16^2/4 - (2/3)16^(3/2)) - (0 - 0)

= 64

Hence, the area bounded by the two functions is 64.

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The p-value for this left-tailed test is 0.12. This means that if the null hypothesis is true and the true population mean is equal to the hypothesized value.

Assuming a normal distribution with a left-tailed test, a Z-score of -1.18 corresponds to a p-value of approximately 0.119.

To find the p-value, we can look up the area to the left of the Z-score (-1.18) in a standard normal distribution table or use a calculator. The area to the left of -1.18 is 0.119, or approximately 0.12 when rounded to three decimal places. Therefore, the p-value for this left-tailed test is 0.12. This means that if the null hypothesis is true and the true population mean is equal to the hypothesized value, there is a 12% chance of observing a sample mean as extreme as or more extreme than the one we observed.

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Answer:

[tex]\huge\boxed{\sf \$ \ 4.2}[/tex]

Step-by-step explanation:

Total price = $60

= 7% of 60

Key: "%" means "out of 100" and "of" means "to multiply"

So,

[tex]\displaystyle = \frac{7}{100} \times 60\\\\= 0.07 \times 60\\\\= \$ \ 4.2\\\\\rule[225]{225}{2}[/tex]

The length of time it would take to have $250 in the account is 5 yeas (option d).

When an account earns a simple interest, it means that the interest earned is a linear function of the amount deposited, interest rate and the length of time.

Simple interest = amount deposited x time x interest rate

Simple interest = future value - amount deposited

$250 - $200 = $50

Time = simple interest / (amount deposited x interest rate)

=  $50 / ($200 x 0.05) = 5 years

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Vince should continue saving until he reaches his goal of $225.90 to purchase the mobile phone he desires.

Step 1: Evaluate the expression:

$225.90 - $122.35 = $103.55

Step 2: Analyze the inequality:

The inequality is stated as $225.90 ≤ $122.35.

Step 3: Interpret the solution:

According to the solution, $103.55 ≤ $0.

Step 4: Conclusion:

Vince is not correct in his interpretation. The inequality suggests that Vince needs to save at least $103.55, not a maximum of $103.55. Since Vince has already saved $122.35, which is greater than $103.55, it means he has already saved more than the minimum required amount. Therefore, Vince should continue saving until he reaches his goal of $225.90 to purchase the mobile phone he desires.

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A statistic is a a) sample characteristic, so the correct option is a) a sample characteristic.

A statistic is a numerical value calculated from a sample of data that is used to describe or make inferences about a larger population from which the sample was drawn. It is different from a parameter, which is a numerical value that describes a characteristic of a population.

Statistics are used in various fields, including science, business, economics, social sciences, and government. They can help researchers to summarize and analyze data, test hypotheses, and make predictions about future events or outcomes.

It is important to note that statistics are subject to variability due to sampling error, which can be reduced by increasing the sample size. Additionally, the distribution of statistics depends on the underlying distribution of the population from which the sample was drawn, and it may not always be normally distributed.

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The given series is a complex alternating series. By applying the ratio test, we can show that the series converges. However, it does not have a closed form expression, and therefore we cannot obtain an exact value for the sum of the series.

The given series can be written in sigma notation as:

∑n=0 ∞ 7[tex](-1)^n([/tex]2n +1) [tex]3^(2n +1)[/tex] (2n + 1)!

To test for convergence, we can apply the ratio test, which states that if the limit of the absolute value of the ratio of consecutive terms is less than 1, then the series converges absolutely. Applying the ratio test to this series, we get:

lim|(7*[tex](-1)^(n+1)[/tex] * 3[tex]^(2n+3)[/tex] * (2n+3)!)/((2n+3)(2n+2)(3^(2n+1))*(2n+1)!)| = 9/4 < 1

Therefore, the series converges absolutely.

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Three approximations to 4.1 using the first three Taylor polynomials for f(x) = 4x centered at 0 are p0(4.1) = 2, p1(4.1) = 8.4, p2(4.1) = 8.225.

The first three Taylor polynomials for f(x) = 4x centered at 0 are given by:

p0(x) = f(0) = 2

p1(x) = f(0) + f'(0)x = 2 + 4x = 2x4

p2(x) = f(0) + f'(0)x + (1/2)f''(0)x^2 = 2 + 4x - (1/64)x^2

Using these Taylor polynomials, we can approximate f(x) at a value x = a by evaluating the corresponding polynomial at x = a. Therefore, three approximations to 4.1 using these polynomials are:

p0(4.1) = 2

p1(4.1) = 2 x 4.1 = 8.4

p2(4.1) = 2 x 4.1 - (1/64)(4.1)^2 = 8.225

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The perimeter of the composite figure is 62 cm, rounded to the nearest hundredth.

A composite figure is a figure made up of two or more shapes that are combined. The perimeter is the total length of the outline of a shape. The perimeter of the composite figure is the sum of the lengths of the sides that make up the composite figure.

To find the perimeter of a composite figure, we need to add the length of each side of all the figures. To find the perimeter of the composite figure, we will first calculate the perimeter of the square and then add the perimeter of two triangles.

We will use the formula:perimeter of a square = 4s, where s = side of the squareWe know that the side of the square = 7 cm

Therefore, the perimeter of the square = 4 × 7 cm = 28 cmNow, let's calculate the perimeter of the triangle. To find the perimeter of a triangle, we need to add the length of all its sides.We know that the side of the triangle = 3 cm

Therefore, the perimeter of one triangle = 3 + 7 + 7 = 17 cmAs there are two triangles, we need to multiply this by 2:Perimeter of two triangles = 2 × 17 cm = 34 cm

Now, let's add the perimeter of the square and two triangles:Perimeter of the composite figure = 28 cm + 34 cm = 62 cm

Therefore, the perimeter of the composite figure is 62 cm, rounded to the nearest hundredth. Answer:perimeter = 62 cm

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The correct Cartesian equation is 5y^(4)(x^(2)+y^(2))=7x^(2).


To convert the given polar equation r = 7sinθ/5cos^(2)θ into a Cartesian equation, we can use the following relationships:
x = rcosθ
y = rsinθ
r^2 = x^2 + y^2

First, let's rewrite the polar equation as:
r = (7sinθ)/(5cos^(2)θ)

Now, multiply both sides by r:
r^2 = (7sinθr)/(5cos^(2)θ)

Substitute x = rcosθ and y = rsinθ:
x^2 + y^2 = (7y)/(5x^2)

Next, multiply both sides by 5x^2:
5x^2(x^2 + y^2) = 7y

Finally, rearrange the equation to match the given answer choices:
5y^(4)(x^(2)+y^(2)) = 7x^(2)

After converting the polar equation into a Cartesian equation, the correct answer is 5y^(4)(x^(2)+y^(2))=7x^(2).

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To calculate the product Ax for each eigenvector x and verify that Ax is a scalar multiple of x, follow these steps:

1. Find the eigenvectors of matrix A. To do this, first find the eigenvalues (λ) by solving the characteristic equation: det(A - λI) = 0, where I is the identity matrix.
To calculate the product ax, we simply multiply the matrix A by the eigenvector x. So, if A is a square matrix and x is an eigenvector of A with eigenvalue λ, then: ax = A x = λ x This tells us that the product ax is a scalar multiple of the eigenvector x.
2. Once you have the eigenvalues, find the eigenvectors x by solving the equation (A - λI)x = 0. There will be a separate eigenvector for each eigenvalue.

3. Calculate the product Ax for each eigenvector x. To do this, simply multiply matrix A with each eigenvector x you found in step 2.
we have shown that ax is indeed a scalar multiple of x, with the scalar being the eigenvalue λ. This is a key property of eigenvectors and eigenvalues, and is often used in applications such as diagonalizing matrices.
4. Verify that Ax is a scalar multiple of x. This means that Ax = λx, where λ is the eigenvalue corresponding to the eigenvector x. Check if Ax and x have the same direction, but their magnitudes may differ by a scalar factor λ. If this holds true for each eigenvector x, then Ax is a scalar multiple of x.

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To find the slope-intercept form of the equation of the line passing through the point (4, 7) and parallel to the line 2x + 3y = 11, we need to first find the slope of the given line.

Rearranging the equation 2x + 3y = 11 into slope-intercept form gives:

3y = -2x + 11

y = (-2/3)x + 11/3

So the slope of the given line is -2/3.

Since the line we want to find is parallel to this line, it will have the same slope. Using the point-slope form of the equation of a line:

y - y1 = m(x - x1)

where m is the slope and (x1, y1) is a point on the line, we can substitute in the given point (4, 7) and the slope -2/3:

y - 7 = (-2/3)(x - 4)

Expanding the right-hand side gives:

y - 7 = (-2/3)x + 8/3

Adding 7 to both sides gives:

y = (-2/3)x + 29/3

So the equation of the line passing through the point (4, 7) and parallel to the line 2x + 3y = 11 in slope-intercept form is y = (-2/3)x + 29/3.

The Cartesian equation of the curve is y = -4x + 9 for -1 ≤ x ≤ 4.

To eliminate the parameter t, we can isolate t in the equation x = t^2 - 2 and substitute it into the equation for y. This gives us:

y = t + 1

t = x + 2

y = x + 3

So the Cartesian equation of the curve is y = x + 3 for -2 ≤ y ≤ 4.

We can eliminate t by taking the natural logarithm of both x and y. This gives us:

ln x = t - 8

ln y = 2t

Solving for t in the first equation and substituting it into the second equation, we get:

t = ln(x) + 8

y = e^(2ln(x)+16) = x^2e^16

So the Cartesian equation of the curve is y = x^2e^16.

To eliminate t, we can again isolate it in the equation for x and substitute it into the equation for y. This gives us:

x = t + 1

t = x - 1

y = 5 - 4(x - 1) = -4x + 9

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The Cartesian equation of the curve is y = 1 - 4x, for -1 ≤ x ≤ 4.

To eliminate the parameter t, we can solve for t in terms of x and substitute it into the equation for y:

t = ±√(x + 2)

y = t + 1 = ±√(x + 2) + 1

Squaring both sides and simplifying, we get:

(x + 2) = (y - 1)²

So the Cartesian equation of the curve is:

x = (y - 1)² - 2, for -2 ≤ y ≤ 4.

To eliminate the parameter t, we can take the natural logarithm of both sides of the equation for y:

ln y = 2 ln e + t ln e = 2 ln e + ln x

ln y = ln (xe²)

y = xe²

So the Cartesian equation of the curve is:

y = x^2e^2.

To eliminate the parameter t, we can solve for t in terms of x and substitute it into the equation for y:

t = 1 + x

y = 5 - 4t = 1 - 4x

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p(E) = 15C15 * 20C20 / 35C35 = 1/2^35

p(F) = 1/2^35

p(E∩F) = 15C15 * 1C1 * 4C3 / 35C19 = 4/2^35

p(EF) = p(E∩F) = 4/2^35

c = p(EF) / (p(E) * p(F)) = (4/2^35) / [(1/2^35) * (1/2^35)] = 4

Consider the events E and F when randomly generating a bit string of length 35. Event E represents the occurrence of 15 ones and 20 zeros in the bit string, while event F specifies that the second bit is zero, the 10th bit is one, and the 15th bit is one.

To calculate the probability of event E (p(E)), we divide the number of favorable outcomes for E (choosing 15 ones and 20 zeros) by the total number of possible outcomes (2^35). Similarly, the probability of event F (p(F)) is determined by dividing the number of favorable outcomes for F (1) by the total number of possible outcomes (2^35).

The probability of the intersection of events E and F (p(E∩F)) is calculated using the concept of combinations, considering the specific positions of the ones in event F within the bit string. In this case, p(E∩F) is 4/2^35. As events E and F are independent, the probability of the joint event EF (p(EF)) is the same as p(E∩F), which is also 4/2^35. Finally, the value of c is determined by dividing p(EF) by the product of p(E) and p(F). Thus, c is equal to 4.

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p(E) = 1.935471109e-06, p(F) = 0.041666667, p(EnF) = 0.0, (EF) = 0.0,c = p(E ∩ F) = 0/2 = 0.

In a uniformly random bit string of length 35, event E represents the occurrence of 15 ones and 20 zeros. To calculate the probability of event E, we need to determine the total number of possible bit strings and the number of bit strings that satisfy event E. Since each bit can have two possibilities (0 or 1), the total number of possible bit strings is 2^35.

To calculate the number of bit strings that have 15 ones and 20 zeros, we use the binomial coefficient formula. The formula for the binomial coefficient is C(n, k) = n! / (k!(n-k)!), where n represents the total number of elements and k represents the number of elements to be chosen. In this case, we have n = 35 and k = 15. So, the number of bit strings that satisfy event E is C(35, 15) = 3,991,997.

The probability of event E, p(E), is then calculated as the ratio of the number of bit strings that satisfy event E to the total number of possible bit strings: p(E) = 3,991,997 / 2^35 = 1.935471109e-06.

Event F represents specific bit positions in the bit string: the second bit being zero, the 10th bit being one, and the 15th bit being one. Since each bit position is independent, the probability of each individual bit position being either 0 or 1 is 1/2. Therefore, the probability of event F, p(F), is the product of the individual probabilities: p(F) = (1/2) * (1/2) * (1/2) = 1/8 = 0.125.

The probability of the intersection of events E and F, denoted as p(EnF), is the probability that both events E and F occur simultaneously. In this case, event E requires 15 ones and 20 zeros, while event F specifies certain bit positions. Since these two conditions cannot be simultaneously satisfied, the probability of their intersection is 0.

Lastly, (EF) represents the joint probability of events E and F occurring in sequence. Since these events cannot occur simultaneously, the probability of their joint occurrence is also 0.

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Answer:

90 flowers in the garden in all.

Step-by-step explanation:

We're essentially asking the question 27 is 30% of what number.  We can allow x to represent the unkown number and use the following equation to solve for x, the total number of flowers in the garden:

30% x = 27

0.30x = 27

x = 90

Thus, there are a total of 90 flowers in the garden.

A central angle is an angle formed by two radii of a circle that share the same endpoint and whose vertex is at the center of the circle.A regular polygon is a polygon that has all sides of equal length and all angles of equal measure.

Interior angles are the angles inside the polygon bounded by adjacent sides.A regular polygon has an interior angle that measures [tex](n-2) * 180 / n[/tex], where n is the number of sides of the polygon. Hence, the formula for each interior angle of a regular polygon is [tex]((n-2) * 180) / n degrees[/tex].

Here, the measure of the interior angle of the regular polygon is 18 degrees. Hence, we can say that the angle between the two radii of a regular polygon that meets at the center and intersects at a point on the polygon is 18 degrees.However, we cannot find the number of sides of the polygon with this information since we need the formula of the angle of a regular polygon to find the number of sides. Therefore, we can say that the central angle of a regular polygon with an interior angle of 18 degrees is also 18 degrees.

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The measure of each interior angle of the 18 sided polygon is: 160°

The formula for finding the interior angles of a regular polygon is:

Interior angle = (n − 2) × 180°

Where n is the number of sides of the polygon.

We know that a polygon has 18 sides. Then the value of n is 18.

Now we will use the formula of sum of interior angles of a polygon to find out the sum.

Substituting the value of number of sides in the formula  (n − 2) × 180°

, we get:

Sum of interior angles  =  (18 − 2) × 180° = 2880°

The measure of each interior angle = 2880°/18 = 160°

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Complete question is:

What is the measure of each interior angle of an 18-sided polygon?

Each bag contains 0.6 kilos of pork.

1. The quotient if 24 is divided by 487:

When we divide 24 by 487, we get the quotient as 0.0493.

2. The length Jean used for each frame:

Jean has 35 m of wire for hanging pictures. She wants to divide it into 50 pieces for her frames. We can divide 35 by 50 to find out how long each piece should be.

Therefore, Jean used 0.7 m for each frame.

3. How much each child received:

Father left P 15.00 for his 2 children. To find out how much each child received, we can divide 15 by 2. Each child received P 7.50.

4. Mang Ricky owns 4 hectares of land. He divided his lot equally among his 8 sons. To find out how much land each son received, we can divide 4 by 8. Each of his son received 0.5 hectares of land.

5. The number of kilos of pork in each bag:

Troy and Raffy went to the market to buy 3 kilos of pork. They divided the meat into 5 parts and put it in plastic bags for future use. To find out how many kilos of pork each bag contains, we can divide 3 by 5. Each bag contains 0.6 kilos of pork.

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1. The server utilization is 500%.

2. The average response time in the system cannot be accurately calculated due to an overloaded and unstable system.

3. The average waiting time in the queue cannot be accurately calculated due to an overloaded and unstable system.

The server utilization can be calculated by dividing the request processing rate by the request arrival rate. In this case, the server utilization would be:

Server Utilization = Request Processing Rate / Request Arrival Rate

= 20 req/s / 4 req/s

= 5/1

= 5

Therefore, the server utilization is 5 or 500% (since it exceeds 100%).

To calculate the average response time in the system, we need to consider the queuing delay (waiting time in the queue) and the service time (time taken to process a request). In the M/M/1 queue model, the average response time is the sum of the average queuing delay and the average service time.

Average Service Time = 1 / Request Processing Rate

= 1 / 20 req/s

= 0.05 s

The M/M/1 queue model has a known formula for the average queuing delay, which is:

Average Queuing Delay = (Server Utilization²) / (1 - Server Utilization) * Average Service Time

= (5²) / (1 - 5) * 0.05 s

= 25 / -4 * 0.05 s

= -1.25 s

Since the queuing delay cannot be negative, it suggests that the server is overloaded, and the system is unstable. In this case, the average response time cannot be calculated accurately using the M/M/1 model.

Similarly, to calculate the average waiting time in the queue, we can use the formula for the average queuing delay mentioned above:

Average Waiting Time = (Server Utilization²) / (1 - Server Utilization) * Average Service Time

= (5²) / (1 - 5) * 0.05 s

= -1.25 s

Again, due to the negative value, it suggests an overloaded and unstable system, so the average waiting time cannot be accurately calculated using the M/M/1 model.

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Answer:

We can write 36 as a product of prime factors: 36 = 2² × 3². The expression 2² × 3² is said to be the prime factorization of 36.

Answer:

2² x 3²

Step-by-step explanation:

The prime factors of 36:

2 x 2 x 3 x 3

= 2² x 3²

Answer: r² = x² + y²

Step-by-step explanation:

Using Boolean algebra, we can prove that the left-hand side (LHS) is equal to the right-hand side (RHS) for the given expressions.

To explain further, let's analyze each expression:

(a) W. Y + W'. Y. Z' + W. X. Z + W'. X. Y' = W. Y + W'. X. Z' + X'. Y. Z' + X. Y'. Z

To prove the equality, we need to simplify both sides of the equation using Boolean algebra laws and properties. By applying distributive laws, factorizing, and rearranging terms, we can manipulate the expressions until they are equivalent.

(b) A. D' + A'. B + C'. D + B'. C = (A' + B' + C + D'). (A + B + C + D)

Again, using Boolean algebra laws such as distributive laws, De Morgan's laws, and simplification rules, we can simplify both sides of the equation and manipulate the expressions to obtain an equivalent form.

By applying these laws and properties in a step-by-step manner, we can show that the LHS is equal to the RHS for both expressions, thus proving their equality using Boolean algebra.

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The correct answer is (a) [tex]y^2 - x^2 = x + 7y[/tex] for the polar equation.

Polar coordinates are a two-dimensional coordinate system that uses an angle and a radius to designate a point in the plane. A polar equation is a mathematical equation that expresses a curve in terms of these coordinates. Circles, ellipses, and spirals are examples of forms with radial symmetry that are frequently described using polar equations. They are frequently employed to simulate physical events that have rotational or circular symmetry in engineering, physics, and other disciplines. Computer programmes and graphing calculators both use polar equations to represent two-dimensional curves.

To convert the polar equation[tex]r = sinθ[/tex] into a cartesian equation, we use the following identities:

[tex]x = r cosθy = r sinθ[/tex]

Substituting these into the given polar equation, we get:

[tex]x = sinθ cosθy = sinθ sinθ = sin^2θ[/tex]
Now we eliminate θ by using the identity:

[tex]sin^2θ + cos^2θ = 1[/tex]

Rearranging and substituting, we get:

[tex]x^2 + y^2 = x(sinθ cosθ) + y(sin^2θ)\\x^2 + y^2 = x(2sinθ cosθ) + y(sin^2θ + cos^2θ)\\x^2 + y^2 = 2xy + y[/tex]

Therefore, the correct answer is (a)[tex]y^2 - x^2 = x + 7y[/tex].

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The ramp includes the flat piece as well as the angled piece and is made entirely out of concrete,the total amount of concrete in the ramp is  696 square inches.

To calculate the total amount of concrete in the ramp, we need to find the surface area of each component (rectangular prism and triangular prism) and sum them up.

Rectangular Prism:

The rectangular prism has a length of 6 inches, width of 18 inches, and height of 6 inches. The surface area of a rectangular prism is given by the formula:

Surface Area = 2lw + 2lh + 2wh

Substituting the values, we get:

Surface Area of Rectangular Prism = 2(6 * 18) + 2(6 * 6) + 2(18 * 6) = 216 + 72 + 216 = 504 square inches

Triangular Prism:

The triangular prism has triangular sides with a base of 8 inches and height of 6 inches. The prism has a height of 18 inches. To find the surface area of a triangular prism, we need to calculate the area of the triangular sides and the area of the rectangular side.

Area of Triangular Sides = 2 * (1/2 * base * height) = 2 * (1/2 * 8 * 6) = 48 square inches

Area of Rectangular Side = length * height = 8 * 18 = 144 square inches

Surface Area of Triangular Prism = Area of Triangular Sides + Area of Rectangular Side = 48 + 144 = 192 square inches

Total Surface Area:

To get the total surface area of the ramp, we sum up the surface areas of the rectangular prism and the triangular prism:

Total Surface Area = Surface Area of Rectangular Prism + Surface Area of Triangular Prism

= 504 + 192

= 696 square inches

Therefore, the total amount of concrete in the ramp is 696 square inches.

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Answer:

P(A only) = 12/36

P(B only) = 6/36

P(A and B) = 6/36

P(A or B) = (12 + 6 + 6)/36 = 24/36 = 2/3

a) The explicit formula for f ο g is f(g(x)) = 10x + 17. b) The explicit formula for g ο f is g(f(x)) = 10x + 22. c) The explicit formula for f ο h is f(h(x)) = 2[tex]x^{2}[/tex] + 5. d) The explicit formula for h ο f is h(f(x)) = 4[tex]x^{2}[/tex] + 12x + 10.

To find the explicit formulas for each function composition, we substitute the inner function into the outer function and simplify.

(a) f ο g:

f(g(x)) = f(5x + 7)

= 2(5x + 7) + 3

= 10x + 14 + 3

= 10x + 17

Therefore, the explicit formula for f ο g is f(g(x)) = 10x + 17.

(b) g ο f:

g(f(x)) = g(2x + 3)

= 5(2x + 3) + 7

= 10x + 15 + 7

= 10x + 22

Therefore, the explicit formula for g ο f is g(f(x)) = 10x + 22.

(c) f ο h:

f(h(x)) = f([tex]x^{2}[/tex] + 1)

= 2([tex]x^{2}[/tex] + 1) + 3

= 2[tex]x^{2}[/tex] + 2 + 3

= 2[tex]x^{2}[/tex] + 5

Therefore, the explicit formula for f ο h is f(h(x)) = 2[tex]x^{2}[/tex] + 5.

(d) h ο f:

h(f(x)) = h(2x + 3)

= [tex](2x+3)^{2}[/tex] + 1

= 4[tex]x^{2}[/tex] + 12x + 9 + 1

= 4[tex]x^{2}[/tex] + 12x + 10

Therefore, the explicit formula for h ο f is h(f(x)) = 4[tex]x^{2}[/tex] + 12x + 10.

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The explicit formulas for the compositions of functions are:

(a) f ο g: 10x + 17

(b) g ο f: 10x + 22

(c) f ο h: 2x^2 + 5

(d) h ο f: 4x^2 + 12x + 10

For the explicit formulas for the compositions of functions, we substitute the inner function into the outer function. Using the provided functions:

(a) f ο g: We substitute g(x) into f(x).

f(g(x)) = 2(g(x)) + 3 = 2(5x + 7) + 3 = 10x + 17

The explicit formula for f ο g is 10x + 17.

(b) g ο f: We substitute f(x) into g(x).

g(f(x)) = 5(f(x)) + 7 = 5(2x + 3) + 7 = 10x + 22

The explicit formula for g ο f is 10x + 22.

(c) f ο h: We substitute h(x) into f(x).

f(h(x)) = 2(h(x)) + 3 = 2(x^2 + 1) + 3 = 2x^2 + 5

The explicit formula for f ο h is 2x^2 + 5.

(d) h ο f: We substitute f(x) into h(x).

h(f(x)) = (f(x))^2 + 1 = (2x + 3)^2 + 1 = 4x^2 + 12x + 10

The explicit formula for h ο f is 4x^2 + 12x + 10.

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The equation of the circle with center at (-7, 1) and radius of 11 is (x + 7)² + (y - 1)² = 121.

To find the equation of a circle with a given center and radius, we use the standard form equation of a circle:

(x - h)² + (y - k)² = r²

where (h, k) is the center of the circle and r is the radius.

In this case, the center is given as (-7, 1) and the radius is 11. So we substitute these values into the standard form equation and simplify:

(x - (-7))² + (y - 1)² = 11²

(x + 7)² + (y - 1)² = 121

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The unique solution is given by  x = -258/15 y = -1754/15 z = 166/15

Let the given system of equations be given by:   x + 4y - z = -14 5x + 6y + 3z = 4 -2x + 7y + 2z = -17  A =  | 1 4 -1 | | 5 6 3 | | -2 7 2 | Since |A| ≠ 0, the system has a unique solution given by  Cramer’s rule, which states that if the system of n linear equations in n unknowns has a unique solution, then the determinant of its coefficient matrix is nonzero and the unknowns can be expressed as ratios of determinants. The unique solution is given by: x = |Ax|/|A|, y = |Ay|/|A| and z = |Az|/|A|, where Ax, Ay, and Az are obtained from A by replacing the first, second and third columns, respectively, by the column of constants.  First, we compute the determinant of the coefficient matrix, |A|

 |A| = 1(6 * 2 - 7 * 3) - 4(5 * 2 - 3 * (-2)) + (-1)(5 * 7 - 6 * (-2))

|A| = 60 - 62 + 17  |A| = 15

Since |A| ≠ 0, we compute the determinant Ax when we replace the first column of A by the column of constants.  Ax  Ax = (-14)(6 * 2 - 7 * 3) - 4(4 * 2 - 3 * (-17)) + (-1)(4 * 7 - 6 * (-17))

Ax = (-14)(-6) - 4(8 + 51) + (-1)(4 + 102)  

Ax = 84 - 236 - 106  Ax = -258

Therefore,  x = |Ax|/|A| = -258/15

When we replace the second column of A by the column of constants, we get Ay.  Ay

Ay = 1(6 * (-17) - 7 * 3) - (-14)(5 * (-17) - 3 * 2) + (-1)(5 * 7 - 6 * 4)  

Ay = 1(-114 - 21) - (-14)(-85) + (-1)(35 - 24)  

Ay = -1354 + 1190 - 11  Ay = -1754

Therefore,  y = |Ay|/|A| = -1754/15

Finally, when we replace the third column of A by the column of constants, we get Az.  Az

Az = 1(6 * 2 - 7 * 3) - 4(5 * 2 - 3 * (-2)) + (-14)(5 * 7 - 6 * (-2))

Az = 60 - 62 + 168  Az = 166

Therefore,  z = |Az|/|A| = 166/15

Hence, the unique solution is given by  x = -258/15 y = -1754/15 z = 166/15

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The absolute value of the determinant of the Jacobian for the change of coordinates x = e^-2u cos(4), y = e^-2u sin(4v) is 4e^-2u.Therefore, the absolute value of the determinant of the Jacobian is 4e^-2u.

The Jacobian for the transformation T is given by the matrix:

[ ∂x/∂u  ∂x/∂v ]

[ ∂y/∂u  ∂y/∂v ]

We can compute the partial derivatives as follows:

∂x/∂u = -2e^-2u cos(4)

∂x/∂v = 4e^-2u sin(4v)

∂y/∂u = -2e^-2u sin(4v)

∂y/∂v = 4e^-2u cos(4v)

Therefore, the Jacobian is:

[ -2e^-2u cos(4)   4e^-2u sin(4v) ]

[ -2e^-2u sin(4v)  4e^-2u cos(4v) ]

The absolute value of the determinant of this matrix is:

|det [ -2e^-2u cos(4) 4e^-2u sin(4v) ]| = |-8e^-4u cos(4)v - (-8e^-4u cos(4)v))| = 4e^-2u

Therefore, the absolute value of the determinant of the Jacobian is 4e^-2u.

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The expected rate of return for the portfolio is calculated as follows:

(18% * 0.70) + (12% * 0.30) = 12.6% + 3.6% = 16.2%.

To compute the expected rate of return for a portfolio, we need to consider the expected return and weight of each stock in the portfolio. The expected return represents the anticipated return for each stock, while the weight represents the proportion of the portfolio's total value allocated to each stock.

In this case, Stock A has an expected return of 18% and a weight of 0.70, meaning it accounts for 70% of the portfolio's total value. Stock B, on the other hand, has an expected return of 12% and a weight of 0.30, accounting for 30% of the portfolio's total value.

To calculate the expected rate of return for the portfolio, we multiply the expected return of each stock by its respective weight. For Stock A, the calculation is 18% * 0.70 = 12.6%, and for Stock B, it is 12% * 0.30 = 3.6%.

Finally, we sum up the results of these calculations: 12.6% + 3.6% = 16.2%. Therefore, the expected rate of return for the two-stock portfolio is 16.2%.

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The simplified expression for f(x+h) - f(x) / 6 is h.

 We need to find and simplify the expression f(x+h) - f(x) / 6 for the function f(x) = 6x - 1.

Step 1: Find f(x+h)
To find f(x+h), replace 'x' with '(x+h)' in the original function f(x) = 6x - 1.
f(x+h) = 6(x+h) - 1

Step 2: Simplify f(x+h)
f(x+h) = 6x + 6h - 1

Step 3: Subtract f(x) from f(x+h)
Now, subtract f(x) from f(x+h) to get:
(f(x+h) - f(x)) = (6x + 6h - 1) - (6x - 1)

Step 4: Simplify the expression
(6x + 6h - 1) - (6x - 1) = 6h

Step 5: Divide by 6
Now, divide the expression by 6:
(f(x+h) - f(x)) / 6 = 6h / 6

Step 6: Simplify the final expression
6h / 6 = h

So, the simplified expression for f(x+h) - f(x) / 6 is h.

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