Using disks or washers, find the volume of the solid obtained by rotating the region bounded by the curves y=x2,0≤x≤5, y=25, and x=0 about the y-axis. Volume=

The series you're referring to is the sum from n=1 to infinity of (n⁸)/(3n⁹). To determine if it is convergent or divergent, we can use the Ratio Test.

Step 1: Compute the ratio of consecutive terms: (a_(n+1))/a_n = ((n+1)⁸)/(3(n+1)⁹) * (3n⁹)/(n⁸).

Step 2: Simplify the ratio: ((n+1)⁸)/(3(n+1)⁹) * (3n⁹)/(n⁸) = (n+1)⁸/(n+1)⁹ * (n⁹)/(n⁸) = 1/((n+1)(n)).

Step 3: Take the limit as n approaches infinity: lim (n→∞) 1/((n+1)(n)) = 0.

Since the limit is less than 1, the series converges by the Ratio Test.

In summary, the series ∑(n=1 to ∞) (n⁸)/(3n⁹) is convergent. The Ratio Test is used to determine this, by finding the limit of the ratio of consecutive terms, which is less than 1.

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The function g(x) that satisfies the given PDF of Y is g(x) = Y = 3x².

To find the function g(x), we need to use the transformation method. We know that Y = g(X), so we can use the following formula:

fY(y) = fX(x) * |dx/dy|

where fX(x) is the PDF of X, and |dx/dy| is the absolute value of the derivative of g(x) with respect to y.

In this case, X is a uniform random variable with parameters 0 and 1, so its PDF is:

fX(x) = 1 for 0 <= x <= 1, 0 otherwise.

Now we need to find g(x) such that fY(y) = 3y² for 0 <= y <= 1, 0 otherwise. Let's set g(x) = Y = 3x².

Then, we can find the derivative of g(x) with respect to y:

dy/dx = 6x

|dx/dy| = 1/|dy/dx| = 1/6x

Now we can substitute fX(x) and |dx/dy| into the formula:

fY(y) = fX(x) * |dx/dy|
fY(y) = 1 * 1/6x
fY(y) = 1/6(√y)

We can see that this matches the desired PDF of Y, which is 3y² for 0 <= y <= 1, 0 otherwise.

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Step-by-step explanation:

put in  -9    where 'x' is and compute

f(-9) = 3 ( -9)^2 -5 ( -9) + 4

       = 3 (81)  + 45 + 4

      = 292

[tex]\sf f(-9) = 292.[/tex]

[tex]\sf f(-9) = 3(-9)^{2} -5(-9)+4[/tex]

[tex]\sf f(-9) = 3(-9*-9) -5(-9)+4\\ \\f(-9) = 3(81) -5(-9)+4[/tex]

[tex]\sf f(-9) = 243 -(-45)+4\\ \\f(-9) = 243+45+4[/tex]

[tex]\sf f(-9) = 292.[/tex]

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a) 100 fish were originally put into the pond.

b) After 10 years, the population of fish is≈780.33 fish.

after 20 years, it is≈1018.31 fish.

and after 30 years, it is≈1096.94 fish.

c) The population of fish approaches a constant value of 1200 fish as t becomes very large.

a) To find how many fish were originally put into the pond, we need to find the initial population at time t=0.

We can do this by substituting t=0 in the logistic growth model:

Therefore, 100 fish were originally put into the pond.

b) To find the population of fish after 10, 20, and 30 years, we can simply substitute the values of t in the logistic growth model:

Therefore,

c) To evaluate P(t) for large values of t, we need to find the limit of P(t) as t approaches infinity. We can do this by looking at the behavior of the exponential function [tex]e^{(-ct)}[/tex] as t becomes very large.

As t approaches infinity, [tex]e^{(-ct)}[/tex] approaches 0, so we can simplify the logistic growth model as follows:

Therefore, the population of fish approaches a constant value of 1200 fish as t becomes very large.

This is known as the carrying capacity of the pond, which is the maximum number of fish the pond can sustain.

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The requried volume of the triangular prism with the cylindrical hole is 2808 cm³.

The volume of the triangular prism without cylindrical whole is given as:
Volume = Area of triangular face * length of the prism

Volume = 25 * [1/2*15*20]
Volume = 3750 cm³

The volume of the cylindrical holes:

Volume = πr²h
             = 3.14*[4/2]²*25 = 314 cm³

Now, the volume of the triangular prism with the cylindrical hole is,
Volume = 3750 - 3 * 314
             = 2808 cm³

Thus, the requried volume of the triangular prism with the cylindrical hole is 2808 cm³.

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The required answer is P(X=20) = 0.0919

To find the probability that Steph Curry shoots exactly 20 free throws (including the one he misses), we can use the binomial distribution formula:

P(X=k) = (n choose k) * p^k * (1-p)^(n-k)

Where:
- X is the number of successes (made free throws)
- k is the specific number of successes we are interested in (20)
- n is the total number of trials (free throws attempted)
- p is the probability of success (making a free throw)

Since Steph Curry is a 91% free-throw shooter, we know that p = 0.91. We also know that he will keep shooting free throws until he misses, which means that the number of trials is not fixed. However, we can still use the formula by setting n = 20 (the maximum number of free throws he could make before missing).
A probability is a way of assigning every event a value between zero and one, with the requirement that the event made up of all possible results (in our example, the event {1,2,3,4,5,6}) is assigned a value of one. To qualify as a probability, the assignment of values must satisfy the requirement that for any collection of mutually exclusive events (events with no common results, such as the events {1,6}, {3}, and {2,4}), the probability that at least one of the events will occur is given by the sum of the probabilities of all the individual events

Now, we just need to calculate P(X=20):

P(X=20) = (20 choose 20) * 0.91^20 * (1-0.91)^(20-20)
P(X=20) = 0.0919
So the probability that Steph Curry shoots exactly 20 free throws (including the one he misses) is approximately 0.0919, or 9.19%.

We are given that Steph Curry is a 91% free-throw shooter, which means he has a 91% chance of making each free throw and a 9% chance of missing one. We want to find the probability that he shoots exactly 20 free throws, including the one he misses.
probability that at least one of the events will occur is given by the sum of the probabilities of all the individual events

In uniform probability distributions, the likelihood of each possible outcome happening or not is the same. This property means that, for any given trial, the probability that an event will be successful does not change

Step 1: Calculate the probability of making the first 19 free throws. Since each free throw has a 91% chance of success, the probability is 0.91^19.

Step 2: Calculate the probability of missing the 20th free throw. This is a 9% chance or 0.09.

Step 3: Multiply the probability of making the first 19 free throws by the probability of missing the 20th one to find the overall probability. This is (0.91^19) * 0.09.

The probability that Steph Curry shoots exactly 20 free throws, including the one he misses, is approximately 0.0357 or 3.57%.

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The final coordinates after the given transformation is: A"'(-1, 2)

The coordinates of the triangle before transformation are:

A(-3, 1), B(3, 2) and C(1, -4)

Now, to rotate triangle ABC about the origin 90° clockwise we would follow the rule (x,y) → (y,-x),

Thus, we have:

A'(1, 3)

It is translated 2 units to the right and so we have:

A"(1 - 2, 3)

= A"(-1, 3)

Now it is moved by 1 unit downward and so we have:

A"'(-1, 3 - 1)

= A"'(-1, 2)

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The final coordinates after the given transformation is: A"'(-1, 2)

The coordinates of the triangle before transformation are:

A(-3, 1), B(3, 2) and C(1, -4)

Now, to rotate triangle ABC about the origin 90° clockwise we would follow the rule (x,y) → (y,-x),

Thus, we have:

A'(1, 3)

It is translated 2 units to the right and so we have:

A"(1 - 2, 3)

= A"(-1, 3)

Now it is moved by 1 unit downward and so we have:

A"'(-1, 3 - 1)

= A"'(-1, 2)

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The distance to a star is inversely proportional to its parallax.

The distance to a star is related to its parallax through the following relationship: distance is inversely proportional to parallax. In other words, as the parallax increases, the distance to the star decreases, and vice versa.

This means that as the parallax angle (the apparent shift in position of the star when viewed from different points in Earth's orbit) decreases, the distance to the star increases. In other words, the smaller the parallax angle, the farther away the star is. This relationship is often expressed as the distance to the star being proportional to the reciprocal of its parallax angle, or distance ∝ 1/parallax.

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Therefore, the coldest day of the year in Fairbanks, Alaska, based on this model, is predicted to occur on October 11 (since t=0 corresponds to January 1, the 283rd day of the year is October 11).

To find the coldest day of the year, we need to find the minimum value of the function T, which represents the expected low temperature in Fairbanks, Alaska.

We can start by finding the derivative of the function with respect to t:

[tex]d(T)/dt = 36 * cos[2\pi/365(t-101)] * 2\pi/365[/tex]

Setting this derivative equal to zero and solving for t will give us the values of t that correspond to the minimum and maximum temperatures.

[tex]0 = 36 * cos[2\pi/365(t-101)] * 2\pi/365[/tex]

[tex]cos[2\pi /365(t-101)] = 0[/tex]

[tex]2pi/365(t-101) = pi/2 + n*\pi[/tex], where n is an integer.

[tex]t-101 = 182.5 + 365n[/tex]

[tex]t = 283.5 + 365n[/tex]

This equation gives us the values of t that correspond to the days when the minimum and maximum temperatures occur. We can see that the smallest value of t is obtained when n=0, which gives:

[tex]t = 283.5[/tex]

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The probability that a randomly selected student speaks French, given that the student is female, is 3/20.

The probability that a randomly selected student speaks French given that the student is female can be found using Bayes' theorem.

Let F be the event that a student speaks French, and let G be the event that a student is female. Then, we want to find P(F | G), the probability that a student speaks French given that the student is female.

We know that P(F) is the overall probability that a student speaks French, regardless of gender. This can be computed using the total number of French-speaking students divided by the total number of students:

P(F) = (2 + 6) / 35 = 8 / 35

We also know that P(G) is the overall probability that a student is female. This can be computed using the total number of female students divided by the total number of students:

P(G) = 21 / 35 = 3 / 5

Finally, we need to find P(G | F), the probability that a student is female given that the student speaks French. This can be computed using the formula for conditional probability:

P(G | F) = P(F | G) * P(G) / P(F)

We are given that six of the French-speaking students are male, so the remaining two must be female. Therefore, P(F | G) = 2 / 21. Substituting in the values we have computed, we get:

P(G | F) = (2 / 21) * (3 / 5) / (8 / 35) = 3 / 20

Therefore, the probability that a randomly selected student speaks French, given that the student is female, is 3/20.

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The range of possible values for f(12) - f(1) is [110, 156].

For the range of possible values for f(12) - f(1),using the Mean Value Theorem, we know that there exists a c in (1,12) such that:

f(12) - f(1) = (12 - 1) f'(c)

Since we know that 11 ≤ f'(x) ≤ 13 for all x in (1,12), we can use these bounds to find the range of possible values for f(12) - f(1):

11 ≤ f'(c) ≤ 13

11(12-1) ≤ (12-1)f'(c) ≤ 13(12-1)

110 ≤ f(12) - f(1) ≤ 156

Therefore, the range of possible values for f(12) - f(1) is [110, 156].

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Center of mass of the given system of point masses is (-5, 1).

We need to find the coordinates (x, y), where:

x = (m1x1 + m2x2 + m3x3) / (m1 + m2 + m3)

y = (m1y1 + m2y2 + m3y3) / (m1 + m2 + m3)

Here, we have three point masses with coordinates (x1, y1) = (-7, -3), (x2, y2) = (0, 0), and (x3, y3) = (-1, 6), and masses m1 = 8, m2 = 1, and m3 = 4.

Plugging in the values, we get:

x = (8(-7) + 1(0) + 4(-1)) / (8 + 1 + 4) = -5

y = (8(-3) + 1(0) + 4(6)) / (8 + 1 + 4) = 1

Therefore, the center of mass of the given system of point masses is (-5, 1).To find the center of mass, we need to find the coordinates (x, y), where:

x = (m1x1 + m2x2 + m3x3) / (m1 + m2 + m3)

y = (m1y1 + m2y2 + m3y3) / (m1 + m2 + m3)

Here, we have three point masses with coordinates (x1, y1) = (-7, -3), (x2, y2) = (0, 0), and (x3, y3) = (-1, 6), and masses m1 = 8, m2 = 1, and m3 = 4.

Plugging in the values, we get:

x = (8(-7) + 1(0) + 4(-1)) / (8 + 1 + 4) = -5

y = (8(-3) + 1(0) + 4(6)) / (8 + 1 + 4) = 1

Therefore, the center of mass of the given system of point masses is (-5, 1).

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The maximum likelihood estimator for θ is 6θ = 6(X/n).

To find the maximum likelihood estimator for θ, we need to find the likelihood function first.

The likelihood function is given by:

L(θ | x) = f(x1, x2, . . . , xn | θ)

where f is the probability density function of the normal distribution with mean θ and variance σ2.

Using the density function of normal distribution, we get:

L(θ | x) = (2πσ2)^(-n/2) * exp(-(1/2σ2) * ∑(xi-θ)^2)

To find the maximum likelihood estimator, we need to maximize this likelihood function with respect to θ.

Taking the derivative of the likelihood function with respect to θ and setting it to zero, we get:

d/dθ (L(θ | x)) = (1/σ2) * ∑(xi-θ) = 0

Solving for θ, we get:

θ = (1/n) * ∑xi = X/n

Therefore, the maximum likelihood estimator for θ is 6θ = 6(X/n).

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Here are the journal entries for each scenario: (1) Usage of direct materials, including related variance (compound entry): Debit: Work-in-Process Inventory (standard cost).

   Debit: Material Price Variance (difference), Credit: Raw Materials Inventory (actual cost), (2). Incurrance and   assignment of direct labor costs, including related variances (compound entry): Debit: Work-in-Process Inventory (standard cost), Debit: Labor Rate Variance (difference)
  Credit: Salaries and Wages Payable (actual cost)

3. Actual manufacturing overhead costs incurred: Debit: Manufacturing Overhead
  Credit: Various Overhead Accounts (utilities, depreciation, etc.)

4. Overhead allocated to Work-in-Process Inventory:
  Debit: Work-in-Process Inventory
  Credit: Manufacturing Overhead

5. Movement of all production from Work-in-Process Inventory:
  Debit: Finished Goods Inventory (standard cost)
  Credit: Work-in-Process Inventory (standard cost)

6. Transfer the cost of sales at standard cost:
  Debit: Cost of Goods Sold (standard cost)
  Credit: Finished Goods Inventory (standard cost)

7. Adjusting the Manufacturing Overhead account (compound entry):
  Debit: Manufacturing Overhead (over- or under-applied amount)
  Debit/Credit: Cost of Goods Sold or Work-in-Process Inventory (depending on the disposition decision), Please note that these are generic entries and the exact amounts should be filled in based on your specific data.

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To find the matrix a of the rotation about the y-axis through an angle of π/2 counterclockwise as viewed from the positive y-axis, we can use the following formula:

a = [ cos(θ), 0, sin(θ) ] [ 0, 1, 0 ] [-sin(θ), 0, cos(θ) ] where θ is the angle of rotation.

In this case, θ = π/2, so we have: a = [ cos(π/2), 0, sin(π/2) ] [ 0, 1, 0 ] [-sin(π/2), 0, cos(π/2) ]

Simplifying this, we get: a = [ 0, 0, 1 ] [ 0, 1, 0 ] [-1, 0, 0 ]

Therefore, the matrix a of the rotation about the y-axis through an angle of π/2 counterclockwise as viewed from the positive y-axis is: a = [ 0, 0, 1 ] [ 0, 1, 0 ] [-1, 0, 0 ]

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Answer:  13, 3.43

Step-by-step explanation:

Pythagorean theorem is:

c²=a²+b²  

c is always the hypotenuse, the side that is longest or the side opposite of the right angle

a and b are the other 2 sides (for this it doesn't matter which is which

1.  c=x  a=12  b=5

x²=12²+5²         12² means (12)(12)=144 (12, 2 times)

x²=144+25        simplify by adding the numbers

x²=169            to solve for x take the √ of both sides

√x²=√169

x=13

2.  c=10.1    b=9.5   a=x

10.1²=9.5²+x²

102.01=90.25 +x²     subtract 90.25 from both sides

11.76=x²          take square root of both sides to solve for x

√x²=√11.76

x=3.43

Answer:  13, 3.43

Step-by-step explanation:

Pythagorean theorem is:

c²=a²+b²  

c is always the hypotenuse, the side that is longest or the side opposite of the right angle

a and b are the other 2 sides (for this it doesn't matter which is which

1.  c=x  a=12  b=5

x²=12²+5²         12² means (12)(12)=144 (12, 2 times)

x²=144+25        simplify by adding the numbers

x²=169            to solve for x take the √ of both sides

√x²=√169

x=13

2.  c=10.1    b=9.5   a=x

10.1²=9.5²+x²

102.01=90.25 +x²     subtract 90.25 from both sides

11.76=x²          take square root of both sides to solve for x

√x²=√11.76

x=3.43

Answer:

19.5°

Step-by-step explanation:

to get the answer to this, you need to apply trigonometry

SOH CAH TOA

AB = hypotenuse

BC = opposite

AC = adjacent

we have the hypotenuse and the opposite so we use the equation SOH

sin⁻¹ (opp/hyp)

= sin⁻¹ ([tex]\frac{6}{18}[/tex])

= 19.47122....

= 19.5° (to the nearest tenth)

Okay, let's break this down step-by-step:

* 5 hot dogs and 4 hamburgers cost 13.25 total

* 4 hot dogs and 5 hamburgers cost 13.75 total

* So the difference between the two options is 0.5 (13.75 - 13.25 = 0.5)

* We have 9 items total in the first option and 9 items total in the second option

* So the difference of 0.5 must be due to the cost difference of either 1 hot dog or 1 hamburger

* Let's assume 1 hot dog costs x dollars

* Then, 5 hot dogs would cost 5x

* And 4 hot dogs would cost 4x

* So 5x + 4x = 13.25

* 9x = 13.25

* x = 1.5 (cost of 1 hot dog)

*

* Now let's look at the second option:

* 4 hot dogs would cost 4x = 4 * 1.5 = 6

* 5 hamburgers would cost y dollars each

* So 4x + 5y = 13.75

* 6 + 5y = 13.75

* 5y = 7.75

* y = 1.55 (cost of 1 hamburger)

So in summary:

The cost of one hot dog is $1.50

The cost of one hamburger is $1.55

Let me know if you have any other questions!

By using probability, the expected number of defective toys when selecting 2 toys at random from the table is 8/15.

To find the expected number of defective toys when selecting 2 toys at random from a table of 15 windup toys, we can use the concept of probability. There are a total of 15 toys, and 4 of them are defective. Thus, the probability of selecting a defective toy in the first pick is 4/15.

Once we have picked one toy, there are now 14 toys remaining on the table. If the first toy was defective, there are now 3 defective toys left among the 14. If the first toy was not defective, there are still 4 defective toys left among the 14.

The expected number of defective toys can be calculated as the sum of the probabilities of each possible outcome, multiplied by the number of defective toys in that outcome. There are two possible outcomes: (1) both toys are defective or (2) only one toy is defective.

(1) Probability of both toys being defective:
(4/15) * (3/14) = 12/210

(2) Probability of only one toy being defective:
a) First toy is defective, second toy is not: (4/15) * (11/14) = 44/210
b) First toy is not defective, second toy is: (11/15) * (4/14) = 44/210

The expected number of defective toys is the sum of the probabilities multiplied by the number of defective toys in each outcome:
(2 * 12/210) + (1 * 44/210) + (1 * 44/210) = 24/210 + 88/210 = 112/210

Simplifying the fraction, we get: 112/210 = 8/15.

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The solution to dy/dx=1y is y=eˣ+C, where C is a constant.

This is found by separating the variables, integrating both sides, and solving for y. The constant C is determined by initial conditions or additional information about the problem.

This differential equation is a first-order linear homogeneous equation, meaning it can be solved using separation of variables. The solution shows that the rate of change of y is proportional to y itself, leading to exponential growth or decay depending on the sign of C.

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complete question:

The solution to  differential equation dy/dx=1y   is ?

a. The probability that a tails appears on the dime and a 1 on the die is 0.0833. To find this, you need to multiply the probabilities of each individual event: P(tails) = 0.5 and P(1 on die) = 1/6. So, 0.5 * (1/6) = 0.0833.

b. The probability that a tail appears on the dime and any number 4 or greater on the die is 0.2500. First, find the probability of getting a 4 or greater on the die: P(4 or greater) = 3/6 = 0.5. Then multiply by P(tails): 0.5 * 0.5 = 0.2500.

c. The probability that a number greater than 2 appears on the die is 0.6667. There are 4 numbers greater than 2 (3, 4, 5, and 6), so the probability is 4/6 = 0.6667.

d. The probability that a head appears on the dime or you throw a 3 on the die is 0.5833. To find this, add the individual probabilities and subtract the probability of both events happening: P(heads) = 0.5, P(3 on die) = 1/6, and P(heads and 3 on die) = 0.0833. So, 0.5 + (1/6) - 0.0833 = 0.5833.

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The profitability index for this project is approximately 0.65, indicating that it may not be a favorable investment as the PI is less than 1.

The profitability index (PI) is a ratio that measures the present value of future cash flows of a project per dollar of initial investment.

To calculate the PI of a project with an initial investment of $194,000 and a net present value of -$68,000, you would divide the present value of future cash flows by the initial investment.

PI = Present Value of Future Cash Flows / Initial Investment

Since the net present value is negative, we can assume that the present value of future cash flows is less than the initial investment.

PI = (-$68,000) / $194,000

PI = -0.35

The PI of the project is negative (-0.35), which means that the project is not expected to be profitable and may result in a net loss. Therefore, it may not be a wise investment decision.
The profitability index (PI) is a financial metric used to evaluate the attractiveness of an investment. It is calculated by dividing the present value of future cash flows by the initial investment. In this case, the initial investment is $194,000 and the net present value (NPV) is -$68,000. To calculate the PI:

PI = (NPV + Initial Investment) / Initial Investment
PI = (-$68,000 + $194,000) / $194,000
PI = $126,000 / $194,000
PI ≈ 0.65

The profitability index for this project is approximately 0.65, indicating that it may not be a favorable investment as the PI is less than 1.

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The critical value (zo) for the given test is 2.33. So, option A) is correct.

A critical value is the value of the test statistic which defines the upper and lower bounds of a confidence interval or defines the threshold of statistical significance in a statistical test.

Critical value can be defined as a value that is useful in checking whether the null hypothesis can be rejected or not by comparing it with the test statistic.

Based on the information provided, we can use a one-tailed z-test with a level of significance (α) of 0.01.

The formula for the critical value (zo) is:
zo = zα
where zα is the z-score corresponding to the level of significance (α).

Using a standard normal distribution table or calculator, we can find that the z-score for α = 0.01 is 2.33.

Therefore, the critical value (zo) for this test is 2.33.

Thus, option A) is correct.

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Answer:

Total purchase price = 600 * 34.50 Total purchase price = $20,700 c. To find the total selling price for the 600 shares, we can multiply the number of shares by the final price per share. Total selling price = 600 * 38.64 Total selling price = $23,184 d.

Answer:

probably about 10.24%

Step-by-step explanation:

Comparing the two functions, we see that they have the same slope (-7/g), but different y-intercepts (3 vs 145/g). Therefore, the correct answer is: It has the same slope and a different y-intercept, which is option (b).

A linear function is a numerical capability that can be addressed by a straight line on a chart.

It has the structure y = mx + b, where m is the slant of the line and b is the y-catch.

Modeling relationships between two variables with a constant rate of change is done with the help of linear functions.

The linear function with a slope of -7/g and a y-intercept of 3 can be represented by the equation y = (-7/g)x + 3.

The linear function represented by the equation y + 11 = (-7/g)(x - 18) can be rewritten in slope-intercept form as y = (-7/g)x + 145/g.

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The quadratic function in standard form that passes through the points (-6,0), (-4,0), and (-3,-18) is f(x) = -2x^2 + 4x + 4.

To write the quadratic function in standard form, we can use the fact that a quadratic function can be expressed as

f(x) = a(x - h)² + k,

where (h, k) is the vertex of the parabola and "a" is a constant that determines the shape of the parabola.

Since the graph passes through (-6, 0), (-4, 0), and (-3, -18), we can set up three equations based on these points and solve for the unknowns a, h, and k.

First, using the point (-6, 0), we get

0 = a(-6 - h)² + k

Expanding the square and simplifying, we get

36a + ah² + k = 0 ----(1)

Similarly, using the point (-4, 0), we get

0 = a(-4 - h)² + k

Expanding and simplifying, we get

16a + ah² + k = 0 ----(2)

Using the point (-3, -18), we get

-18 = a(-3 - h)² + k

Expanding and simplifying, we get

9a + 6ah + ah² + k = -18 ----(3)

We now have three equations with three unknowns (a, h, k). We can solve them simultaneously to get the values of a, h, and k.

Subtracting equation (1) from (2), we get

20a = -4ah²

Dividing by -4a, we get

-5 = h²

Taking the square root of both sides, we get

h = ±√5 i

Since "h" is a real number, we must have h = 0.

Substituting h = 0 in equations (1) and (2), we get

36a + k = 0 ----(4)

16a + k = 0 ----(5)

Subtracting equation (4) from (5), we get

20a = 0

Therefore, a = 0.

Substituting a = 0 in equation (4), we get

k = 0.

Thus, the quadratic function is

f(x) = 0(x - 0)² + 0

Simplifying, we get

f(x) = 0

Therefore, the graph is a horizontal line passing through the x-axis at x = -6, -4, and -3.

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The following can be answered by the concept of Sequence.

1. The sequence is decreasing as n increases. So, the answer is (b) decreasing.

2. The sequence is not bounded.

1. To determine whether the sequence is increasing, decreasing, or not monotonic, let's first examine the formula: an = 4n(-3). Simplifying this gives us an = -12n. Since the coefficient of n is negative, the sequence is decreasing as n increases. So, the answer is (b) decreasing.

2. To determine if the sequence is bounded, we need to see if there are upper and lower limits to the sequence. In this case, the sequence continues to decrease as n increases without any limit.

Therefore, the sequence is not bounded.

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Answer:

The owner buys used books for $1.50 each and resells them for 400% of what he paid for them, which is the same as saying he multiplies the purchase price by 4.

So, the selling price of each used book is:

4 x $1.50 = $6.00

Therefore, the price of a used book in this bookstore is $6.00.

The answer is (J) $6.00.    

have a good day and stay safe

Answer:

J 6.00

Step-by-step explanation:

1.50*400% which is equal to 1.50*4 which in turn is equal to $6.00.

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The probability that more boys than girls are chosen is approximately 0.171.  

To solve this problem, we can use the binomial distribution. Let X be the number of boys chosen out of the 5 students selected.

Then, X has a binomial distribution with parameters n = 5 and p = 16/(16+19) = 16/35, since there are 16 boys and 19 girls, and we are selecting 5 students at random.

We want to find the probability that more boys than girls are chosen, which is the same as the probability that X is greater than 2. We can compute this probability using the cumulative distribution function (CDF) of the binomial distribution:

P(X > 2) = 1 - P(X ≤ 2)

= 1 - (P(X = 0) + P(X = 1) + P(X = 2))

Using the binomial probability formula, we can calculate each term of the sum:

P(X = k) = (n choose k) * p^k * (1 - p)^(n - k)

where (n choose k) = n! / (k! * (n-k)!) is the binomial coefficient.

Thus, we have:

P(X = 0) = (5 choose 0) * (16/35)^0 * (19/35)^5 = 0.107

P(X = 1) = (5 choose 1) * (16/35)^1 * (19/35)^4 = 0.349

P(X = 2) = (5 choose 2) * (16/35)^2 * (19/35)^3 = 0.373

Substituting these values into the formula for P(X > 2), we get:

P(X > 2) = 1 - (0.107 + 0.349 + 0.373) = 0.171

Therefore, the probability that more boys than girls are chosen is approximately 0.171.

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