Use the given transformation to evaluate the integral. double integral 10y^2 dA, where R is the region bounded by the curves xy = 2, xy = 7, xy^2 = 2 and xy^2 = 7; v= xy, v- v = xy^2

Answer:

42

Step-by-step explanation:

Answer: D. 42°

Step-by-step explanation: RIGHT ON EDGE 2023

The table represents values of a linear function. The equation of a line in the slope intercept form is expressed as

y = mx + c

where

m = slope

c = y intercept

We would find the slope and y intercept. The formula for determining slope is expressed as

m = (y2 - y1)/(x2 - x1)

From the table,

if x1 = - 1, y1 = 1

if x2 = 0, y2 = 2

m = (2 - 1)/(0 - - 1) = 1/(0 + 1) = 1/1 = 1

To find the y intercept, we would substitute m = 1, x = - 1 and y = 1 into the slope intercept equation. We have

1 = 1 * - 1 + c

1 = - 1 + c

c = 1 + 1 = 2

This means that the y coordinate of the y intercept of g(x) is 2

The y coordinate of the y intercept of f(x) is 1

Thus,

A) The y coordinate of the y intercept of f(x) is less than the y coordinate of the y intercept of g(x)

Lookng at the graph of f(x) and table representing g(x), the maximum of f(x) is y = 3 and g(1) = 3

Thus,

B) The maximum of f(x) is equal to g(1)

f(x) has 2 zeros at the points where the lines cut across the x axis. The linear graph of g(x) has only one zero. Thus,

C) The number of zeros of f(x) is greater than the number of zeros of g(x)

The recommended order quantity is 4 cases, which maximizes the expected profit.

To solve this problem, we need to calculate the expected profit for each order quantity, and then choose the order quantity that maximizes expected profit. Let's assume that the drugstore orders X cases of hand sanitizer.

First, let's calculate the cost per bottle for each order quantity:

If X = 1, the cost per bottle is $14.50.

If X = 2, the cost per bottle is $13.75.

If X = 3, the cost per bottle is $12.50.

If X >= 4, the cost per bottle is $11.75.

Next, we need to calculate the expected demand for each order quantity. The possible demands are 12, 24, 36, 48, 60, 72, 84, or 96 bottles, with probabilities 0.05, 0.10, 0.15, 0.20, 0.20, 0.15, 0.10, and 0.05 respectively. So the expected demand for X cases is:

If X = 1, the expected demand is 120.05 + 240.10 + 360.15 + 480.20 + 600.20 + 720.15 + 840.10 + 960.05 = 52.8 bottles.

If X = 2, the expected demand is 2*52.8 = 105.6 bottles.

If X = 3, the expected demand is 3*52.8 = 158.4 bottles.

If X >= 4, the expected demand is 4*52.8 = 211.2 bottles.

Now we can calculate the expected profit for each order quantity. Let's assume that any bottles left unsold within a month of the best-before date will be sold off for $6.50 per bottle.

If X = 1, the expected profit is (18.75 - 14.50)52.8 - 14.5024 + min(24*X - 52.8, 0)*6.50 = $73.68.

If X = 2, the expected profit is (18.75 - 13.75)105.6 - 13.7548 + min(24*X - 105.6, 0)*6.50 = $179.52.

If X = 3, the expected profit is (18.75 - 12.50)158.4 - 12.5072 + min(24*X - 158.4, 0)*6.50 = $261.12.

If X >= 4, the expected profit is (18.75 - 11.75)211.2 - 11.7596 + min(24*X - 211.2, 0)*6.50 = $326.88.

Therefore, the recommended order quantity is 4 cases, which maximizes the expected profit.

To determine the expected value of perfect information, we need to calculate the expected profit if we knew the demand in advance. The maximum possible profit is achieved when we order just enough to meet the demand, so if we knew the demand in advance, we would order exactly as many cases as we need. The expected profit in this case is:

If demand is 12 bottles, the profit is (18.75 - 11.75)12 - 11.7524 = $68.50.

If demand is 24 bottles, the profit is (18.75 - 11.75)24 - 11.7524 = $137.00.

If demand is 36 bottles, the profit is (18.75 - 11.75)36 - 11.7536 = $205.50.

If demand is 48 bottles, the profit is (18.75 - 11.75)48 - 11.7548 = $274.00.

If demand is 60 bottles, the profit is (18.75 - 11.75)60 - 11.7560 = $342.50.

If demand is 72 bottles, the profit is (18.75 - 11.75)72 - 11.7572 = $411.00.

If demand is 84 bottles, the profit is (18.75 - 11.75)84 - 11.7584 = $479.50.

If demand is 96 bottles, the profit is (18.75 - 11.75)96 - 11.7596 = $548.00.

Using these values, we can calculate the expected value of perfect information as:

E(VPI) = (0.0568.50 + 0.10137.00 + 0.15205.50 + 0.20274.00 + 0.20342.50 + 0.15411.00 + 0.10479.50 + 0.05548.00) - $326.88 = $18.99.

This means that if we knew the demand in advance, we could increase our expected profit by $18.99.

Finally, if the salvage value for each leftover bottle is negotiable within the range $4 to $10, we need to adjust the formula for expected profit accordingly. Let's assume that the salvage value is S dollars per bottle. Then the expected profit formula becomes:

If X = 1, the expected profit is (18.75 - 14.50)52.8 - 14.5024 + min(24*X - 52.8, 0)S = $73.68 + min(24X - 52.8, 0)*S.

If X = 2, the expected profit is (18.75 - 13.75)105.6 - 13.7548 + min(24*X - 105.6, 0)S = $179.52 + min(24X - 105.6, 0)*S.

If X = 3, the expected profit is (18.75 - 12.50)158.4 - 12.5072 + min(24*X - 158.4, 0)S = $261.12 + min(24X - 158.4, 0)*S.

If X >= 4, the expected profit is (18.75 - 11.75)211.2 - 11.7596 + min(24*X - 211.2, 0)S = $326.88 + min(24X - 211.2, 0)*S.

Therefore, for the recommended order quantity of X=4, the valid range of salvage value S is $4 <= S <= $10, because if the salvage value is less than $4, it would be more profitable to sell the bottles at the regular price, and if the salvage value is more than $10, it would be more profitable to discard the bottles instead of selling them at a loss.

Learn more about "Expected Profit" : https://brainly.com/question/4177260

#SPJ11

Zack should use a line with one arrowhead to map an abandoned line of reasoning.

A line with one arrowhead is commonly used in diagrams to represent the direction of a process or flow of information. In the case of mapping an abandoned line of reasoning, the line can be used to show the original train of thought that was pursued but later abandoned.

The arrowhead can indicate the point at which the reasoning was abandoned or diverted. Therefore, using a line with one arrowhead would be the most appropriate shape for Zack to use. The other shapes listed (orange oval, green rectangle, red) do not provide a clear representation of a line of reasoning and would not be suitable for this purpose.

To know more about abandoned line visit:

https://brainly.com/question/4040679

#SPJ11

see the figure below to better understand the problem

we have that

If XY is parallel to BC

then

Triangle ABC is similar to triangle DBE

Remember that

If two triangles are similar, then the ratio of their corresponding sides is proportional and their corresponding angles are congruent.

I will assume that triangle ABC is a right triangle

so

AB^2+AC^2+BC^2

BC^2=9^2-8^2

BC^2=17

BC=√17

Applying proportion

DE/AC=BE/BC

substitute given values

DE/9=2/√17

DE=(2/√17)*9

DE=4.37

therefore

Answer:

List all of the solutions.

2x+y=3=2x+y=3=

x−2y=−1=x-2y=-1=

2=2=

−2=

Step-by-step explanation:

Hope this helps, If it did, then I would really appreciate it if you gave me Brainliest, I only need one more to rank up and it has taken forever to get to where I am currently. Thanks.

a) whatever is in the bracket you substitute into x.

c(100) = (1.25*100) + 2175

          = 125 + 2175

          = 2300

Another exmaple: if it says c(2 + x) then you substitute that into x

→ 1.25(2 + x) + 2175  (and then expand that)

b) A physical interpretation of this could be:

For every 1.25 w-widget that is produced, you would add $2175 for the other costs. (something like that)

The steps to connect the components for an internet connection are as follows:

Step 1: Add the cable modem to the workspace. Modems are small boxes that are responsible for converting digital signals to analog signals and vice versa. Modems are necessary for accessing the internet. Therefore, it is important to add the cable modem to the workspace first.

Step 2: Use an RG-6 coaxial cable to connect the modem to the WAN connection on the wall plate.A WAN (Wide Area Network) connection is a type of internet connection that is typically used for larger networks. In order to connect a cable modem to the internet using a WAN connection, an RG-6 coaxial cable is needed.

Step 3: Connect the computer to the cable modem.In order to access the internet, the computer must be connected to the cable modem. This can be done using an Ethernet cable.

Step 4: Connect the modem to the power outlet.Modems require power in order to function. Therefore, it is necessary to connect the modem to a power outlet.

Step 5: Verify the internet connection using the network. After completing the above steps, the internet connection can be verified by opening a web browser and attempting to access a webpage. If the webpage loads successfully, the internet connection has been successfully established.Important: It is important to not click Score Lab until after all tasks have been attempted. Once Score Lab is clicked, the user will advance to the next lab question and will not be able to restart this lab. This applies to all subsequent labs in this exam.

For more such questions on modem, click on:

https://brainly.com/question/7320816

#SPJ8

Answer:

m = -8/5

Step-by-step explanation:

\(m=\frac{-9-7}{8-(-2)} =\frac{-16}{10} =-\frac{8}{5}\)

Hope this helps

Correct option is (IV). kurtosis measure of the normal distribution = 3

Kurtosis is frequently defined as a measure of peakedness or flatness. However, this is deceptive. It is a measure of the distribution's tail heaviness (and skewness measure whether one tail is heavier than the other).

Normal distribution curve determines the skewness of the data as to what extent is is disoriented from the normal distribution curve. Also, it is the probability distribution curve that determines whether the data set is two legged, one legged or it lies under which probability curve.

Because these parameters are purely shape-related, they should not be affected by the mean or standard deviation. Pearson's measures use moments about the mean to avoid relying on the mean and scale the variables to eliminate the standard deviation. Because the normal distribution has only two parameters, the skewness and kurtosis are constants. The kurtosis value is 3.

To learn more about Kurtosis from the given link

https://brainly.com/question/23894295

#SPJ4

Answer:

v = 87.96 cubic mi

Step-by-step explanation:

v = π r^2 h. but diameter is 4 so r =4/2 =2

v = 3.143 * 2^2 * 7

v = 3.143 * 4 *7

v =3.143 *28

v =87.96 cubic mi

Option C is the correct choice - It is not appropriate to estimate beyond the scale at all. (i.e 2.3 cm)

The scale has two divisions, one for centimeters and the other for millimeters, so it can only measure between 2 (cm) and 3 (mm) and no more.

A measuring device is used to compare the unknown quantity to a standard, and the comparison is then expressed as a number to ascertain the magnitude of the quantity. To properly convey the measurement, a number expressing the magnitude must also have a unit associated with it. For instance, it makes no sense to simply record someone's height as 64. It must be measured at 64 inches. Thus, a number and unit must be assigned to each measurement.

Because the scale has two divisions—centimeter and millimeter—it can only measure up to three centimeters (2.3).
Therefore, option C is the correct choice which states that Any estimate made outside of the scale is entirely inappropriate. (i.e 2.3 cm)

To know more about Measurement, refer to this link:

https://brainly.com/question/28137278

#SPJ4

COMPLETE QUESTION:

According to Professor Dave, how far beyond the scale reported is it appropriate to estimate a measurement? (i.e. If the ruler below has cm labeled and lines for mm, what is an appropriate estimate?) 0 1 2 3 4 5 6 7 8 9 10 cm

a) It is appropriate to estimate 1 digit beyond the scale (.e. 2.33cm)

b) It is appropriate to estimate 2 digits beyond the scale (.e. 2.333cm)

c) It is not appropriate to estimate beyond the scale at all. (.e 2.3 cm)

d) There are no guidelines. Students should do whatever they feel most comfortable doing.

lol that's cool because i didn't know either

Answer:

the second one

Step-by-step explanation:

Answer:

yes that correct

Step-by-step explanation:

Answer:

y = 1/4x + 1/2 and x = -2 +4y

Step-by-step explanation:

Solving it in a way that x/4 is a fraction and not division so you would make that 1/4x. y = x/4 +1/2 x/4 is 1/4x so then you subtract 1/2 from both sides to get y - 1/2 = 1/4x. You can then divide 1/4 on both sides. -1/2 divided by 1/4 is -2 and 1/4y. This will get your answer of x = 1/4y -2 for x. Y is just 1/4x + 1/2

Using the cosine rule, the distance the plane has flown during Jack's phone call can be calculated by taking the square root of the sum of the squares of the initial and final distances, minus twice their product, multiplied by the cosine of the angle difference.

To determine the distance the plane has flown during Jack's phone call, we can use the cosine rule in trigonometry.

The cosine rule relates the lengths of the sides of a triangle to the cosine of one of its angles.

Let's denote the initial distance from Jack to the plane as d1 and the final distance as d2.

We know that the altitude of the plane remains constant at 2400 meters.

According to the cosine rule:

\(d^2 = a^2 + b^2 - 2ab \times cos(C)\)

Where d is the side opposite to the angle C, and a and b are the other two sides of the triangle.

For the initial angle of elevation (70°), we have the equation:

\(d1^2 = (2400)^2 + a^2 - 2 \times 2400 \times a \timescos(70)\)

Similarly, for the final angle of elevation (50°), we have:

\(d2^2 = (2400)^2 + a^2 - 2 \times 2400 \times a \times cos(50)\)

To find the distance the plane has flown, we subtract the two equations:

\(d2^2 - d1^2 = 2 \times 2400 \times a \times (cos(70) - cos(50))\)

Now we can solve this equation to find the value of a, which represents the distance the plane has flown.

Finally, we calculate the square root of \(a^2\) to find the distance in meters.

It's important to note that the angle of elevation assumes a straight-line path for the plane's movement and does not account for any changes in altitude or course adjustments that might occur during the phone call.

For similar question on cosine rule.

https://brainly.com/question/27613782  

#SPJ8

Answer:

Element  Frequency Cumulative Frequency

15                   3              3

16                   6              9

17                   1              10

18                   6             16

20                   6            22

24                   5            27

25                   6            33

27                   2            35

28                   4            39

30                   1             40

Step-by-step explanation:

Find out how many times an element(data value) appears. That will be the frequency(column 2). The cumulative frequency is the total of all frequencies prior to that element plus the current element frequency

Cumulative frequency for first element is same as its frequency

Cumulative frequency for element 16 is 3 + 6 = 9

Cumulative frequency for element 17 = 3 + 6 + 1 = 9 + 1=10. Basically it is the sum of the previous element cumulative frequency + the current frequency

Answer:

120°

Step-by-step explanation:

The total sum of the interior angles of a decagon is 1440°

To find the maximum and minimum values of the function g(θ) = 4θ - 6sin(θ) on the interval (0, φ), we need to analyze its critical points and endpoints.

First, let's find the critical points by setting the derivative equal to zero:
g'(θ) = 4 - 6cos(θ) = 0
=> cos(θ) = 4/6 = 2/3

Now we need to determine if θ exists in the given interval (0, φ) that satisfies cos(θ) = 2/3. If it does, we need to evaluate the function at this critical point and at the endpoints of the interval (0 and φ).

However, since we don't know the value of φ, we can't determine the exact values for the minimum and maximum. If you provide a specific value for φ, we can proceed with finding the maximum and minimum values for the function within the given interval.

To learn more about critical points, refer below:

https://brainly.com/question/29144288

#SPJ11

a. The table value of z 0.99 is given as 2.58.

b. we use σ = 2.30 minutes.

c. The value of Z is given as 0.609.

d. The confidence interval is (23.391, 24.609) minutes.

a) To find the z-score for a 0.99 confidence interval, we need to find the z-score that leaves 0.5% (since it's two-tailed, we split the 1% or 0.01 of the data that's not within the confidence interval into two) in each tail. The z-score for 0.995 (0.5% in the upper tail) is approximately 2.58 in standard normal distribution tables. So, Z_0.99 is 2.58.

b) Therefore, we use σ = 2.30 minutes.

c) The standard error of the mean (SE) is given by σ/√n, where n is the sample size.

Here, σ = 2.30 minutes and n = 95.

Therefore, SE = σ/√n

= 2.30/√95

= 0.236 minutes.

Multiply this by the z-score to find Z * σ/√n.

Therefore, Z * σ/√n = 2.58 * 0.236 ≈ 0.609.

d) The 0.99 confidence interval for μ

Here, x is the sample mean which is 24 minutes.

So the confidence interval is approximately

= (24 - 0.609, 24 + 0.609)  

= (23.391, 24.609) minutes.

This is the range of values we are 99% confident that the true population mean (μ) falls in.

Read more on Z critical here:https://brainly.com/question/14040224

#SPJ4

Answer:

166. 5

Step-by-step explanation:

Given the following :

Mean weight (m) = 142 lbs

Standard deviation (sd) = 14 lbs

Renne = 96 percentile, what is Renne's weight

Using the equation :

Zscore = (score - mean) / standard deviation

96 percentile = 0.96 is equivalent to a Zscore of

1.75

Hence,

1.75 = (score - 142) / 14

14 * 1.75 = score - 142

24.5 = score - 142

24.5 + 142 = score

Score = 166.5

Answer:

all square roots of natural numbers, other than of perfect squares, are irrational.

Step-by-step explanation:

like 3 or 71

Answer:

5.12369..... and square root of 15

Step-by-step explanation: the first number is a non terminating non repeating decimal and the square root of 15 is a non perfect square

Answer:

The measure of ∠A = 107.5°

Step-by-step explanation:

Given that

ABCD is a kite such that

AB = BC and AD = DC

Join A and C

Since AB = BC

→ ∠BAC = ∠BCA

Since , the angles opposite to equal sides are equal.

Let ∠BAC = ∠BCA = x°

and

Since AD = DC

→ ∠CAD = ∠ACD

Since , the angles opposite to equal sides are equal.

Let ∠CAD = ∠ACD = y°

Now

In ∆ ADC ,

∠ADC + ∠CAD + ∠ACD = 180°

Since , the sum of the all angles in a triangle is 180°

⇛ 30° + y°+ y° = 180°

⇛ 30°+2y° = 180°

⇛ 2y° = 180°-30°

⇛ 2y° = 150°

⇛ y° = 150°/2

⇛ y° = 75°

Therefore, ∠CAD = ∠ACD = 75°

and

In ∆ ABC,

∠ ABC + ∠BAC + ∠BCA = 180°

Since , the sum of the all angles in a triangle is 180°

⇛ 115° + x° + x° = 180°

⇛ 115°+2x° = 180°

⇛ 2x° = 180°-115°

⇛ 2x° = 65°

⇛ x° = 65°/2

⇛ x° = 32.5°

Therefore, ∠BAC = ∠BCA = 32.5°

Now, ∠ A = ∠BAC + ∠CAD

⇛ ∠A = 32.5° + 75°

⇛ ∠A = 107.5°

Therefore, ∠A = 107.5°

Answer:-

Read more:

Similar Questions

ABCD is a kite with AD=AB A= 116° B=2x° D=(5x-147)° Find the size of the smallest angle of the kite.

https://brainly.com/question/22571892?referrer

Answer:

is it this?I just searched

Answer:

C

Step-by-step explanation:

Given

p + 15 = 4 ( isolate p by subtracting 15 from both sides )

p = - 11 → C

Answer:

p -11 + 15 = 4

cause a negative × positive equals to positive

Answer: -2x^2+16x-30

Step--by-step explanation:

To calculate the receivable days, divide the trade receivables (RM63,000) by the average daily sales (RM1,400) to get approximately 45 days.



To calculate the receivable days, we need to determine the average daily sales and then divide the trade receivables by that figure.

First, we calculate the average daily sales by dividing the total sales by the number of days in the year:

Average daily sales = Total sales / Number of days

Since the year ended on 30th June 2019, there are 365 days in total.

Average daily sales = RM511,000 / 365 = RM1,400

Next, we divide the trade receivables by the average daily sales to find the receivable days:

Receivable days = Trade receivables / Average daily sales

Receivable days = RM63,000 / RM1,400 ≈ 45 days

Therefore, Alice's receivable days on 30th June 2019 is approximately 45 days.

To learn more about average daily sales click here brainly.com/question/15711496

#SPJ11