(a) Using the Cauchy-Riemann equations, the function's existence at all points (x, y) can be determined. Let u(x,y) = x² + 25 + y and v(x,y) = y² + 2y - 2 + 7 and compute the partial derivatives.(b) The function f(x + iy) is analytic at all points where the Cauchy-Riemann equations are satisfied.(c) The formula for f'(2) at all points where f is differentiable is f'(2) = 2x + i (2y + 2).
Explanation: Given function, f(x + iy) = x² + 25 + y + 5 + i(y² + 2y - 2 + 7). To apply the Cauchy-Riemann equations, we first need to separate the given function into its real and imaginary parts. We obtain: u(x,y) = x² + 25 + yv(x,y) = y² + 2y - 2 + 7It's now time to calculate the partial derivatives:∂u/∂x = 2x∂u/∂y = 1∂v/∂x = 0∂v/∂y = 2y + 2Setting ∂u/∂x = ∂v/∂y and ∂u/∂y = -∂v/∂x, we obtain the Cauchy-Riemann equations. We have:2x = 0 ⇒ x = 0 and 1 = 2y + 2 ⇒ y = -1Using these values of x and y, we see that the Cauchy-Riemann equations hold at the point (0, -1). Hence, f'(0 - i1) exists and is given by f'(0 - i1) = ∂u/∂x + i∂v/∂x= 0 + i(2(-1) + 2) = -2 + 2i. Therefore, f'(x + iy) exists only at point (0, -1).For a function to be analytic at a given point, it must satisfy the Cauchy-Riemann equations at that point and be continuous there. Thus, the function f(x + iy) is analytic only at the point (0, -1).Formula for f'(2) that holds at all points where f is differentiable:f'(x + iy) = ∂u/∂x + i∂v/∂x= 2x + i (2y + 2).Setting x = 2, we obtain:f'(2) = 2(2) + i (2(-1) + 2) = 4 + 2i. Therefore, the formula for f'(2) that holds at all points where f is differentiable is f'(2) = 4 + 2i.
Know more about Cauchy-Riemann equations here:
https://brainly.com/question/30385079
#SPJ11
Charlie lives halfway between Chicago and Hoopertown. Amanda lives halfway between Charlie and Chicago. Raymond lives between Charlie and Hoopertown. All three houses lie on a straight line from Chicago to Hoopertown. If Raymond lives 15 miles from Amanda and 23 miles from Chicago, how far does he live from Hoopertown?
Answer:
Let's assume that the distance between Chicago and Hoopertown is represented by 'x' miles.
According to the given information:
Raymond lives 23 miles from Chicago, so the distance between Amanda and Chicago is 23 - 15 = 8 miles.
Since Amanda lives halfway between Charlie and Chicago, the distance between Charlie and Chicago is also 8 miles.
Therefore, the distance between Charlie and Hoopertown is x - 8 miles.
Since Charlie lives halfway between Chicago and Hoopertown, the distance between Raymond and Charlie is (x - 8) / 2 miles.
Given that Raymond lives 15 miles from Amanda, we can set up the following equation:
(x - 8) / 2 = 15
To solve for x, we can multiply both sides of the equation by 2:
x - 8 = 30
Next, we can isolate x by adding 8 to both sides of the equation:
x = 38
Therefore, the distance between Chicago and Hoopertown (x) is 38 miles.Therefore, the distance between Chicago and Hoopertown (x) is 38 miles.Since Raymond lives 23 miles from Chicago, he lives (38 - 23) = 15 miles from Hoopertown.Therefore, the distance between Chicago and Hoopertown (x) is 38 miles.Since Raymond lives 23 miles from Chicago, he lives (38 - 23) = 15 miles from Hoopertown.Thus, Raymond lives 15 miles from Hoopertown.The theoretical probability of an albino Galapagos tortoise being born is 0.001%. If 500,000 Galapagos tortoises hatch, how many would you expect to be albino?
Answer: 5
Step-by-step explanation:
I'm just in 6th grade, but here's what I know: Theoretical probability is a type of probability with math. So multiply 0.001% and 500,000
0.001/100=0.00001
Then 0.00001 times 500,000
=5
While traveling along a highway a driver slows from 48 m/s to 30 m/s in 24 seconds. What is theautomobile’s acceleration?a.+ 0.75 m/sb.-0.75 m/sc.+0.75 m/s2d.-0.75 m/s2
Answer:
i dont care
its -75m/sc
Step-by-step explanation:
If you can buy 2 bags of chips for $125. How many bags of chips can you get with $9,455 dollars? $7,600?
$1,000,000? Use a Ratio, ratio table, or equation to solve.
Answer:
Step-by-step explanation:
it is 75 and a half
87.2- somthing=61.2
what is the awnswer
Answer:
26.0
Step-by-step explanation:
87.2-61.2= something
something is= 26
What does it mean when a forecaster says 70% chance of rain?
A 70% chance of rain means that there is a higher likelihood of rain occurring compared to other possible weather conditions, but it is not a guarantee.
When a forecaster says there is a 70% chance of rain, it means that, based on their analysis of various weather factors, they believe there is a 70% probability of rain occurring. This percentage represents the likelihood or chance of rain happening.
It's important to note that this is not a definitive prediction that it will rain. Weather forecasting is not an exact science, and there is always some level of uncertainty involved. The forecaster is indicating that, given the current conditions and their expertise, rain is more likely to happen than not.
To put it into perspective, if this weather scenario were repeated 100 times, it is expected that rain would occur in approximately 70 of those instances. The remaining 30 instances would not experience rain.
To know more about Rain visit.
https://brainly.com/question/14454151
#SPJ11
Please help me out i don’t know what right and left is!!! please tell me :(((
Answer:
put your fingers out in the shape of L's. Which ever finger has the L facing the proper way, is left, and the other is right.
Step-by-step explanation:
Find the slope of: A(-2,-4), B(2, 4) *
Answer:
2/1
Step-by-step explanation:
Follow the formula: (y2 - y1) / (x2 - x1). So 4-(-4) and 2-(-2). A negative and a negative equal a positive so 8/4. Then simplify. Which gives you 2/1. Hope this helps.
The sum of the measures of the interior angles of a convex polygon is 1,980. How many sides does the polygon have? sides
Answer:
13 sides
Step-by-step explanation:
Sum of interior angles = (n - 2) 180°
(n - 2)*180 = 1980
n-2 = 11
n = 13
This proof shows the first five steps for verifying Use the drop-down boxes to complete the steps of the proof.
the drop-down boxes to complete the steps of the proof =
1. Tangent Half-angle identity
2. 1 + cos x
3. 1 - cos x
In mathematics, trigonometric functions are real functions that relate the angles of a right triangle to the ratio of the lengths of its two sides. They are widely used in all geometry-related sciences such as navigation, solid mechanics, celestial mechanics, and geodesy.
Trigonometric periodic functions repeat at predictable intervals, but are not a direct result of trigonometric functions. It can be used to accurately predict values outside the original range. Common non-trigonometric functions include: Four corners. triangle.
Learn more about trigonometric function here: https://brainly.com/question/6904750
#SPJ4
The question is incomplete. Please read below to find the missing content.
This proof shows the first five steps for verifying cot^2 (x/2)= cos x+1/cos c-1 use the drop-down boxes to complete the steps of the proof
A cafe only sells two types of sandwiches, turkey, and steak. The cafe charges $4 for turkey sandwiches and $6 for steak sandwiches. Last month, the cafe sold $4524 worth of sandwiches. The cafe sold a total of 925 sandwiches.
How many turkey sandwiches did they sell?
Enter only the number for your answer in the box.
Answer:
They sold 513 turkey sandwiches
I HOPE THIS HELPSS!!
Please help!!! Angles!
Answer:
m∠JKM = 63°
m∠MKL = 27°
Step-by-step explanation:
Since ∠JKL is a right angle. This means that by summing up both m∠JKM and m∠MKL will result in the same as ∠JKL figure. Thus, m∠JKM + m∠MKL = m∠JKL which is 90° by a right angle definition.
\(\displaystyle{\left(12x+3\right)+\left(6x-3\right) = 90}\)
Solve the equation for x:
\(\displaystyle{12x+3+6x-3 = 90}\\\\\displaystyle{18x=90}\\\\\displaystyle{x=5}\)
We know that x = 5. Next, we are going to substitute x = 5 in m∠JKM and m∠MKL. Thus,
m∠JKM = 12(5) + 3 = 60 - 3 = 63°
m∠MKL = 6(5) - 3 = 30 - 3 = 27°
Xavier needed to get his computer fixed. He took it to the repair store. The technician at the store worked on the computer for 4.5 hours and charged him $155 for parts. The total was $357.50. Write and solve an equation which can be used to determine xx, the cost of the labor per hour.
Answer:
$45 - (357.50 - 155) / 4.5
Step-by-step explanation:
First, we have to deduct the amount for parts ($155) by the total ($357.50). Once we find the difference ($202.5), we can now divide it by the amount of hours (4.5). This leaves us with the answer, $45.
The number of individuals in a population divided by the area that the population takes up is known as the _______ of the population.
Answer:
density
Step-by-step explanation:
the number of population distributed in a certain area, that is generally in km², is the density.
It can be calculated with the following data: Number of population/km²
Extra information: it obviously is an approximated value, because in certain areas it can be much higher (metropolis, for example, generally have a very high population density, meanwhile in the countryside it can be much lower). Generally, it varies from area to area.
The number of individuals in a population divided by the area that the population takes up is known as the density of the population.
Population density refers to the number of individuals in a population per unit of area. It is a measure of how crowded or dispersed a population is within a given area.
Population density is calculated by dividing the total population of an area by the total land area or water area of that region. The resulting number is often expressed in individuals per square kilometer or square mile, depending on the units of measurement used.
Population density is an important ecological concept because it can affect the ability of a population to survive and thrive within a given area. Populations that are too dense may experience competition for resources, disease outbreaks, and other negative effects.
On the other hand, populations that are too dispersed may have trouble finding mates and maintaining genetic diversity. Population density can also be used to track changes in populations over time, and to inform conservation and management efforts.
To know more about density of the population, refer here:
https://brainly.com/question/16894337#
#SPJ11
3 + 3 = 6
6 + 4 = 12
7 + 2 = 14
8 + 5 = 16
5 + 3 = ?
what is the question mark
Answer:
3 + 3 = 6
6 + 4 = 10
7 + 2 = 8
8 + 5 = 13
5 + 3 = 8
Answer: 8
Step-by-step explanation:
For the polyhedron, use Euler's Formula to find the missing number.
faces: __
edges: 11
vertices: 7
i need help wit dis plz thx
Answer:
y = 3x + 1
Step-by-step explanation:
Y-intercept is 1 and the graph isn't a quadratic.
Answer: The answer is y = 3x + 1.
HELP PLEASE!
HAIR BUNDLES: B'UNIQUE Hair Salon owner buys seven hundred bags of a brand of synthetic hair bundles and four hundred bags of a brand of natural hair bundles for her Forestville and Largo locations to get ready to welcome back their clients for her reopening this weekend. The Forestville location receives three hundred bags of synthetic hair bundles and two hundred and fifty bags of natural hair bundles for a total retail value of twenty-three thousand, six hundred dollars. The Largo location receives four hundred bags of a brand of synthetic hair bundles and one hundred and fifty bags of a brand of natural hair bundles for a total retail value of twenty-four thousand, five hundred dollars. What is the retail value of one bag of a synthetic hair bundle and one bag of a natural hair bundle. In your answer, write a system of equations of how you would determine your answer. Provide evidence of your calculations and answer your result in a complete sentence.
Answer:
The retail value of one bag of one bag of a synthetic hair bundle is $47 and the retail value of a bag of natural hair bundle is $38
Step-by-step explanation:
The given information are;
The number of bags of synthetic hair bundles the owner buys = 700
The number of bags of natural hair bundles the owner buys = 400
The number of synthetic hair bundles the Forestville location receives = 300
The number of natural hair bundles the Forestville location receives = 250
The total retail value of the hair bundles the Forestville location receives = $23,600
The number of synthetic hair bundles the Largo location receives = 400
The number of natural hair bundles the Forestville location receives = 150
The total retail value of the hair bundles the Largo location receives = $24,500
Let the price of a bag of synthetic hair bundle = x
Let the price of a bag of natural hair bundle = y
∴ 300·x + 250·y = $23,600...(1)
400·x + 150·y = $24,500...(2)
Making y the subject of the formula in both equations gives;
For equation (1)
y = 23,600/250 - 300/250·x = 94.4 - 1.2·x
y = 94.4 - 1.2·x
For equation (2)
400·x + 150·y = 24,500
y = 24,500/150 - 400/150·x = 490/3 - 8/3·x
y = 490/3 - 8/3·x
Finding the common solution gives;
490/3 - 8/3·x = 94.4 - 1.2·x
490/3 - 94.4 = 8/3·x - 1.2·x
1034/15 = 22/15·x
x = 1034/15/(22/15) = 47
x = 47
∴ The price of a bag of synthetic hair bundle = x = $47
The price of a bag of synthetic hair bundle = $47
y = 490/3 - 8/3·x = 490/3 - 8/3 × 47 = 38
y = 38
The price of a bag of natural hair bundle = y = $38
The price of a bag of natural hair bundle = $38.
Therefore, the retail value of one bag of one bag of a synthetic hair bundle is $47 and the retail value of a bag of natural hair bundle is $38.
What is the value of the expression below when z
8 and w
3?
9z-8w
Answer:
48
Step-by-step explanation:
1) 9*8=72
2) 8*3=24
3)72-24=48
Monomials. Please help. I have a test
(m^8)^5
Answer:
\(m^{40}\)
Step-by-step explanation:
\((m^8)^5=m^{8*5} =m^{40}\)
Hope this helps!
The $24.75 is the sale price after reducing the original price by 10%.
Calculate the original price
Answer: $ 27.50
Step-by-step explanation:
We know that $24.75 is (100%-10%) = 90% of the original price.
24.75/90 = 0.275 (to find one percent)
0.275 x 100 = 27.5 (100%, the original price)
Find the weighted average. The coordinate 5 has a weight of 1, and the coordinate 8 has a weight of 2
The weight average of the coordinates is 7
How to determine the weight average?The given parameters are:
Coordinate 5 has a weight of 1
Coordinate 8 has a weight of 2
The weight average is then calculated as:
Weight average = Sum of (Weight * Coordinate)/Sum of Weights
So, we have:
Weight average = (5 * 1 + 8 * 2)/(1 + 2)
Evaluate the quotient
Weight average = 7
Hence, the weight average of the coordinates is 7
Read more about average at
brainly.com/question/20118982
#SPJ1
at memorial hospital, jamie operates a new state-of-the-art mri scanner that serves approximately 10 patients during an 8-hour shift. patients are scheduled for various lengths of time, depending on the complexity of their scan. the image quality is significantly superior to what it was on previous scanners, but the number of patients served per day remains the same. this situation attests to the fact that
The image quality is significantly superior to what it was on previous scanners, but the number of patients served per day remains the same. this situation attests to the fact that the service sector has seen improvement in quality of service, but productivity remains about the same.
Improvement in quality of service:
Putting the customer first, balancing efficiency and customer satisfaction (experience), and focusing on employee engagement are three key strategies for improving contact center service quality.
Productivity:
Productivity is the efficiency with which goods and services are produced and is represented by a scale. A measure of productivity is often expressed as a ratio of total output to a single input or total input in a production process. Typically the output per unit of input over a period of time. The most common example is a measure of (aggregate) labor productivity, an example of which is GDP per worker. There are various definitions of productivity (including those not defined by the ratio of outputs to inputs), and the choice depends on the purpose of measuring productivity and the availability of data gain. The main reason for differences in different measures of productivity usually has to do with how outputs and inputs are aggregated (directly or indirectly) to obtain such relative measures of productivity doing conduct.
Importance of Productivity:
Productivity gains are defined as the process of getting more out of every hour of work. Improving productivity can take many forms, including: Capital, Investments in equipment, software, infrastructure, machinery, etc. equate to labor. Productivity is important for individuals (workers and consumers), business leaders, and analysts(such as policy makers and government statisticians).
Learn more about Number:
https://brainly.com/question/3589540
#SPJ4
WUTY guerrITOSTITUTO PETTITUUTTOIVOITETTO
GO
Determine the equation of the line perpendicular to the line y = -8 through the point (-4,-2),
The line ys -8 is
The line perpendicular to the line y = -8 is
The equation of the line perpendicular to the line y = -8 through the point (-4,-2) is
Answer:
-x-6=y
Step-by-step explanation:
Perpendicular slope is -1
-1(-4)+b=-2
B=-6
Answer:
Determine the equation of the line perpendicular to the line y = –8 through the point (–4, –2).
The line y = –8 is
✔ horizontal
The line perpendicular to the line y = –8 is
✔ vertical
The equation of the line perpendicular to the line y = –8 through the point (–4, –2) is
✔ x = –4
Step-by-step explanation:
i got it right
How many times bigger is the Pacific than the
Gulf of Mexico
Pacific Ocean:
Gulf of Mexico:
12 times bigger
36 times bigger
10 times bigger
O100 times bigger
6 x 107
6 x 105
The Pacific Ocean is roughly 100 times bigger than the Gulf of Mexico.
What is Ocean?Ocean is the largest and most prominent feature of the Earth's surface. It covers more than 70% of the planet and contains 97% of its water. Oceans are vital to life on Earth, providing food and resources, regulating the climate, and supporting a vast array of marine life. They are home to a variety of habitats including coral reefs, deep sea trenches, and shallow coastal estuaries.
The Pacific Ocean covers an area of roughly 63.8 million square miles (165.2 million square kilometers), while the Gulf of Mexico covers an area of only 615,000 square miles (1.6 million square kilometers). This means that the Pacific Ocean is roughly 6 x 105 (or 600,000) times bigger than the Gulf of Mexico.
To learn more about Ocean
https://brainly.com/question/1824354
#SPJ1
Can you help me check this question? The answer is apparently 16.00 but what I got was around 17.00. Thanks
In order to calculate how much was collected for sales tax, we need to calculate 8% of $216.
To do so, let's multiply 216 by 0.08:
\(\begin{gathered} tax=216\cdot0.08\\ \\ tax=17.28 \end{gathered}\)Therefore the amount collected is $17.28.
lindsey was the top scorer in a women's professional basketball league for the 2006 regular season, with a total of 862 points. The number of two-point field goals that lidnsey made was 71 less than double the number of three-point field goals she made. The number of free throws (each worth one point) she made was 21 less than the number of two-point field goals she made. Find how many free throws, two-point field goals, and three-point field goals lindsey made during the 2006 regular season.
Lindsey made 35 free throws, 143 two-point field goals, and 107 three-point field goals during the 2006 regular season.
What is Equation?Two or more expressions with an Equal sign is called as Equation.
Let's denote the number of two-point field goals Lindsey made by x, and the number of three-point field goals she made by y.
x + y + (x+y-71)/2 + (x+y-71)/2 - 21 = 862 (total points equation)
x = 2y - 71 (two-point field goals equation)
Simplifying the first equation and substituting the second equation, we get:
3x + 3y = 1964
Substituting x = 2y - 71 into this equation, we get:
3(2y-71) + 3y = 1964
Solving for y, we get:
y = 107
Substituting this value into the equation x = 2y - 71, we get:
x = 143
Now, (x + y - 71)/2 - 21 = (143 + 107 - 71)/2 - 21 = 35
Therefore, Lindsey made 35 free throws, 143 two-point field goals, and 107 three-point field goals during the 2006 regular season.
To learn more on Equation:
https://brainly.com/question/10413253
#SPJ9
A study on students drinking habits wants to determine the true average number of alcoholic drinks all uf graduate students have in a one week period. We know from preliminary studies that the standard deviation is around 1. 8. How many students should be sampled to be within 0. 25 drink of population mean with 95% probability?.
With a 95% probability, 62 students should be sampled to be within 0.25 drinks of the population mean.
\(\alpha\) is the level obtained by subtracting 1 from the confidence interval and dividing by 2.
So,
\(\alpha\) = (1 - 0.95) ÷ 2 = 0.25
Now, find z in the Z-table, as z has a p-value of 1 - \(\alpha\).
As a result, z has a p-value of (1 - 0.025) = 0.975
so, z = 1.96
Now, infer M as follows:
M = z × (σ ÷ √n) where n is the sample size and is σ the population standard deviation.
When M = 1, this is n.
According to the question, the standard deviation is roughly 1.
σ = 1
M = z × (σ ÷ √n)
0. 25 = 1.96 × (1 ÷ √n)
√n = 1.96 × (1 ÷ √n)
Square both sides,
(√n)² = ((1.96 × 1) ÷ 0.25)²
n = (7.84)²
n = 61.4656
n ≈ 62
Learn more about the probability at
https://brainly.com/question/13750446?referrer=searchResults
#SPJ4
Sarah is paid $20 an hour at her new job. She wishes to graph her total pay y, as a function of the
number of hours, x. She wants to be sure her graph shows her pay for 10 and 20 hours of work.
Answer:
see image; 200; 400
Step-by-step explanation:
y=20x
graph
Write the equation that expresses the table below.
Answer:
10x=y
Step-by-step explanation:
Divide your outputs by your inputs. In other words, divide 20 by 2, 50 by 5, and 70 by 7. These all equal 10. Therefore, 10 times x will equal y.