Answer:
Step-by-step explanation:
x+4y+68
Let f be the function defined by f(x)=cx−5x^2/2x^2+ax+b, where a, b, and c are constants. The graph of f has a vertical asymptote at x=1, and f has a removable discontinuity at x=−2. (a) Show that a=2 and b=−4. (b) Find the value of c. Justify your answer. (c) To make f continuous at x=−2, f(−2) should be defined as what value? Justify your answer. (d) Write an equation for the horizontal asymptote to the graph of f. Show the work that leads to your answer.
Answer:
a) \(a = 2\) and \(b = -4\), b) \(c = -10\), c) \(f(-2) = -\frac{5}{3}\), d) \(y = -\frac{5}{2}\).
Step-by-step explanation:
a) After we read the statement carefully, we find that rational-polyomic function has the following characteristics:
1) A root of the polynomial at numerator is -2. (Removable discontinuity)
2) Roots of the polynomial at denominator are 1 and -2, respectively. (Vertical asymptote and removable discontinuity.
We analyze each polynomial by factorization and direct comparison to determine the values of \(a\), \(b\) and \(c\).
Denominator
i) \((x+2)\cdot (x-1) = 0\) Given
ii) \(x^{2} + x-2 = 0\) Factorization
iii) \(2\cdot x^{2}+2\cdot x -4 = 0\) Compatibility with multiplication/Cancellative Property/Result
After a quick comparison, we conclude that \(a = 2\) and \(b = -4\)
b) The numerator is analyzed by applying the same approached of the previous item:
Numerator
i) \(c\cdot x - 5\cdot x^{2} = 0\) Given
ii) \(x \cdot (c-5\cdot x) = 0\) Distributive Property
iii) \((-5\cdot x)\cdot \left(x-\frac{c}{5}\right)=0\) Distributive and Associative Properties/\((-a)\cdot b = -a\cdot b\)/Result
As we know, this polynomial has \(x = -2\) as one of its roots and therefore, the following identity must be met:
i) \(\left(x -\frac{c}{5}\right) = (x+2)\) Given
ii) \(\frac{c}{5} = -2\) Compatibility with addition/Modulative property/Existence of additive inverse.
iii) \(c = -10\) Definition of division/Existence of multiplicative inverse/Compatibility with multiplication/Modulative property/Result
The value of \(c\) is -10.
c) We can rewrite the rational function as:
\(f(x) = \frac{(-5\cdot x)\cdot \left(x+2 \right)}{2\cdot (x+2)\cdot (x-1)}\)
After eliminating the removable discontinuity, the function becomes:
\(f(x) = -\frac{5}{2}\cdot \left(\frac{x}{x-1}\right)\)
At \(x = -2\), we find that \(f(-2)\) is:
\(f(-2) = -\frac{5}{2}\cdot \left[\frac{(-2)}{(-2)-1} \right]\)
\(f(-2) = -\frac{5}{3}\)
d) The value of the horizontal asympote is equal to the limit of the rational function tending toward \(\pm \infty\). That is:
\(y = \lim_{x \to \pm\infty} \frac{-10\cdot x-5\cdot x^{2}}{2\cdot x^{2}+2\cdot x -4}\) Given
\(y = \lim_{x \to \infty} \left[\left(\frac{-10\cdot x-5\cdot x^{2}}{2\cdot x^{2}+2\cdot x-4}\right)\cdot 1\right]\) Modulative Property
\(y = \lim_{x \to \infty} \left[\left(\frac{-10\cdot x-5\cdot x^{2}}{2\cdot x^{2}+2\cdot x-4}\right)\cdot \left(\frac{x^{2}}{x^{2}} \right)\right]\) Existence of Multiplicative Inverse/Definition of Division
\(y = \lim_{x \to \pm \infty} \left(\frac{\frac{-10\cdot x-5\cdot x^{2}}{x^{2}} }{\frac{2\cdot x^{2}+2\cdot x -4}{x^{2}} } \right)\) \(\frac{\frac{x}{y} }{\frac{w}{z} } = \frac{x\cdot z}{y\cdot w}\)
\(y = \lim_{x \to \pm \infty} \left(\frac{-\frac{10}{x}-5 }{2+\frac{2}{x}-\frac{4}{x^{2}} } \right)\) \(\frac{x}{y} + \frac{z}{y} = \frac{x+z}{y}\)/\(x^{m}\cdot x^{n} = x^{m+n}\)
\(y = -\frac{5}{2}\) Limit properties/\(\lim_{x \to \pm \infty} \frac{1}{x^{n}} = 0\), for \(n \geq 1\)
The horizontal asymptote to the graph of f is \(y = -\frac{5}{2}\).
Using asymptote concepts, it is found that:
a) Building a quadratic equation with leading coefficient 2 and roots 1 and -2, it is found that a = 2, b = -4.
b) c = -10, since the discontinuity at x = -2 is removable, the numerator is 0 when x = -2.
c) Simplifying the function, it is found that at \(x = -2, f(x) = -\frac{5}{3}\).
d) The equation for the horizontal asymptote to the graph of f is \(y = -\frac{5}{2}\)
-------------------------
Item a:
Vertical asymptote at \(x = 1\) and discontinuity at \(x = -2\) means that the the roots of the quadratic function at the denominator are \(x = 1\) and \(x = -2\).The leading coefficient is given as 2, thus, we build the equation to find coefficients a and b.\(2(x - 1)(x - (-2)) = 2(x - 1)(x + 2) = 2(x^2 + x - 2) = 2x^2 + 2x - 4\)
\(2x^2 + ax + b = 2x^2 - 2x - 4\)
Thus a = 2, b = -4.
-------------------------
Item b:
Removable discontinuity at \(x = -2\) means that the numerator when \(x = -2\) is 0, thus:\(-2c - 5(-2)^2 = 0\)
\(-2c - 20 = 0\)
\(2c = -20\)
\(c = -\frac{20}{2}\)
\(c = -10\)
-------------------------
Item c:
With the coefficients, the function is:
\(f(x) = \frac{-10x - 5x^2}{2x^2 + 2x - 4} = \frac{-5x(x + 2)}{2(x - 1)(x + 2)} = -\frac{5x}{2(x - 1)}\)
At x = -2:
\(-\frac{5(-2)}{2(-2 - 1)} = -\frac{-10}{-6} = -(\frac{5}{3}) = -\frac{5}{3}\)
Thus, simplifying the function, it is found that at \(x = -2, f(x) = -\frac{5}{3}\)
-------------------------
Item d:
The horizontal asymptote of a function is:
\(y = \lim_{x \rightarrow \infty} f(x)\)
Thus:
\(y = \lim_{x \rightarrow \infty} \frac{-10x - 5x^2}{2x^2 + 2x - 4} = \lim_{x \rightarrow \infty} \frac{-5x^2}{2x^2} = \lim_{x \rightarrow \infty} -\frac{5}{2} = -\frac{5}{2}\)
The equation for the horizontal asymptote to the graph of f is \(y = -\frac{5}{2}\)
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Plz only find the shaded area only I would appreciate if you did this on paper and showed all steps
A company found that an experienced surveyor can survey a roadbed in 7 hours. An apprentice surveyor needs 8 hours
to survey the same stretch of road. If the two work together, find how long it takes them to complete the job.
***
The number of hours it will take both the surveyor and apprentice to complete the same job is 15/56 hours.
Rate of workHours it takes the experienced surveyor = 7 hoursSurveyors rate of work = 1/7Hours it takes the apprentice = 8 hoursApprentice rate of work = 1/8If the two work together;
Time taken for both to complete the task = Surveyors rate of work + Apprentice rate of work
= 1/8 + 1/7
= (7+8) / 56
= 15/56 hours
Therefore, the number of hours it will take both the surveyor and apprentice to complete the same job is 15/56 hours.
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What is the inverse of (- 2 3?
The inverse of (- 2 . 3 ) is (1 / - 2.3 ).
In mathematics, the inverse of a number refers to the concept of taking its reciprocal; for instance (2 . w ) results in its reciprocal as ( 1/ 2. w ). When a number is multiplied by its inverse the result yields 1, meaning that the product of the number and its inverse, i.e. reciprocal always equals 1.
As per the given number which is (-2.3) and its inverse is ( 1 / -2.3 ), when these two numbers are multiplied together they result in 1. Such as:
(-2.3) x ( 1 / -2.3 ) = 1
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A cubic yard is what kind of measurement?
O A. perimeter
O B. surface area
O c. volume/capacity
O D. length
O E. weight
Solve the inequality for u. 63 ≥ 3u-12 Simplify your answer as much as possible.
Answer:
u≤25
Step-by-step explanation:
63 ≥ 3u-12
-3u -3u
-3u+63 ≥ -12
-63 -63
-3u ≥ -75
/-3 /-3
u≤25
how do you solve f-3/4=5/6?
Answer:
f =38
Step-by-step explanation:
f-3/4=5/6
f-3×6=5×4
f-18 =20
f =20+18
f =38
a plumer charges $25 for a service call plus $50 per hour of service. write an equation in slope - intercept form for cost , c ,after h hours of service, what will be the total cost for 8 hours of work? 10 hours of work
The total cost for 10 hours of work would be 25 + 50(10) = 525.
What is cost?Cost is the monitorial associated with the purchase of production of food or service if can include the prices of material of which is over it and other expenses that are related to the production of the code of service cost is a major fraction of when deciding whether to purchase a product something as it is and indicator of the value of the product of sound service.
The marginal cost of producing 5 items can be calculated using the equation C(x)=1300+4x/10. The marginal cost is the cost associated with producing one additional item. To calculate the marginal cost, we can plug in x=5 into the equation.
The equation in slope-intercept form for cost, c, after h hours of service is c = 25 + 50h.
The total cost for 8 hours of work would be 25 + 50(8) = 425.
The total cost for 10 hours of work would be 25 + 50(10) = 525.
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5) (3 points) a) Express the Hadamard gate in the form H=e α
AXBXC i.e. specify α,A,B,C with ABC=I. b) Express the Hadamard gate as the product of rotations about the x and y axes.
The Hadamard gate can be expressed as H = e^(iα)AXBXC, where α is a phase factor and A, B, and C are specific matrices that satisfy ABC = I, the identity matrix. Additionally, the Hadamard gate can also be represented as the product of rotations about the x and y axes.
a) The Hadamard gate, denoted as H, can be expressed as H = e^(iα)AXBXC, where e^(iα) is a phase factor and A, B, and C are matrices. These matrices are chosen such that their product, ABC, equals the identity matrix, I. By setting α to an appropriate value, we can determine the phase factor required for the Hadamard gate.
b) Another way to represent the Hadamard gate is through rotations about the x and y axes. The Hadamard gate can be expressed as H = R_y(π/4)R_x(π/2), where R_x(π/2) represents a rotation of π/2 radians about the x axis, and R_y(π/4) represents a rotation of π/4 radians about the y axis. This representation highlights the geometric interpretation of the Hadamard gate as a combination of rotations.
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need help with this question
The explicit formula for the nth term of the sequence 14,16,18,... is aₙ = 2n + 12.
What is an explicit formula?
The explicit equations for L-functions are the relationships that Riemann introduced for the Riemann zeta function between sums over an L-complex function's number zeroes and sums over prime powers.
Here, we have
Given: the sequence 14,16,18,….
First term a₁ = 14
Common difference d = 16 - 14 = 2
Now, plug the values into the above formula and simplify.
aₙ = a₁ + d( n - 1 )
aₙ = 14 + 2( n - 1 )
aₙ = 14 + 2n - 2
aₙ = 14 - 2 + 2n
aₙ = 2n + 12
Hence, the explicit formula is aₙ = 2n + 12.
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Write the expression in expanded form (1 + 3b)(6)
Answer:
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Identity:
An identity is an equality which is true for all values of a variable in the equality.
(a + b)³ = a³+ b³+ 3ab(a + b)
In an identity the right hand side expression is called expanded form of the left hand side expression.
---------------------------------------------------------------------------------------------------
Solution:
(i) (2x + 1)³
Using identity
(a + b)³ = a³+ b³+ 3ab(a + b)
(2x + 1)³
= (2x)³ + 1³ + (3×2x×1)(2x + 1)
= 8x³+ 1 + 6x(2x + 1)
= 8x³ + 1 + 12x² + 6x
(ii) (2a – 3b)³
Using identity,
(a – b)³ = a³–b³ – 3ab(a – b)
(2a – 3b)³ = (2a)³– (3b)³ – (3×2a×3b)(2a – 3b)
=8a³–27b³–18ab(2a –3b)
= 8a³–27b³–36a²b + 54ab²
(iii) [3x/2 + 1]³
Using identity,
(a + b)³ = a³+ b³+ 3ab(a + b)
[3x/2 +1]³
=(3x/2)³+1³+ (3×(3x/2)×1)(3x/2+ 1)
=27x³/8+1+9/2x×(3x/2+1)
= 27x³/8 + 1 + 27/4 x² + 9/2x
= (27/8)x³ + (27/4) x² + 9/2 x + 1
(iv) [x–2/3 y]³
Using identity,
(a - b)³=a³-b³-3ab(a-b)
(X+ 2/3y)³
= (x)³–(2/3 y)³– (3×x×2/3 y)(x – 2/3 y)
= x³– 8y³/27–2xy(x – 2/3 y)
= x³– (8/27)y³–2x²y+ 4/3xy²
=========================================================
Hope this will help you....
Step-by-step explanation:
a class has 15 boys and 20 girls. what is the boy: girl ratio in simplest form? group of answer choices 4 to 5 10 to 13 3:5 3:4
If the a has 15 boys and 20 girls, then the boy to girls ratio in simplest form is 3 : 4
Number of boys in the class = 15 boys
Number of girls in the class = 20 girls
The ratio can be defined as the a number that can be used to express one quantity as a fraction of the other ones. That means we are comparing them by dividing those numbers
Here the ratio will be
Number of boys in the class : Number of girls in the class
Substitute the values in the ratio
= 15 : 20
Divide both numbers by 5
= (15/5) : (20/5)
= 3 : 4
Hence, if the a has 15 boys and 20 girls, then the boy to girls ratio in simplest form is 3 : 4
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the sum of two numbers is 30. when is the product of the first number multiplied by the square of the second number maximum
The two numbers required to solve the following problem are, 13.3 and 6.7
What is Derivative?
The derivative of a function of a real variable in mathematics describes the sensitivity of the function value to a change in its argument. Calculus relies heavily on derivatives.
Solution:
Let the ture positive numbers be x,(x,y>0)
x + y = 20 -------- Given
We need to maximise \(xy^{2}\)
x = 20 - y
f(y) = (20 - y)*\(y^{2}\)
f(y) = 20\(y^{2}\) - \(y^{3}\)
f'(y) = 0
On differentiating:
f'(y) = 40y - 3\(y^{2}\)
0 = 40 - 3y
y = 13.3
x = 6.7
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Today, Andrew borrowed R200 000 from a bank. The bank charges interest at 5.25%p.a, a compounded quarterly. Andrew will make make payments of R6 000 at the end of 3 months. His first repayment will be made 3 months from now, how long in years will it take for Andrew to settle the loan
In order to calculate the time it will take for Andrew to settle the loan, we can use the formula for compound interest. So, it will take Andrew approximately 5.22 years to settle the loan.
The formula is given as A = P(1 + r/n)^(nt), Where: A = the final amount, P = the principal (initial amount borrowed), R = the annual interest rate, N = the number of times the interest is compounded in a year, T = the time in years.
We know that Andrew borrowed R200 000 from a bank at an annual interest rate of 5.25% compounded quarterly and that he will make repayments of R6 000 at the end of every 3 months.
Since the first repayment will be made 3 months from now, we can consider that the initial loan repayment is made at time t = 0. This means that we need to calculate the value of t when the total amount repaid is equal to the initial amount borrowed.
Using the formula for compound interest: A = P(1 + r/n)^(nt), We can calculate the quarterly interest rate:r = (5.25/100)/4 = 0.013125We also know that the quarterly repayment amount is R6 000, so the amount borrowed minus the first repayment is the present value of the loan: P = R200 000 - R6 000 = R194 000
We can now substitute these values into the formula and solve for t: R194 000(1 + 0.013125/4)^(4t) = R200 000(1 + 0.013125/4)^(4t-1) + R6 000(1 + 0.013125/4)^(4t-2) + R6 000(1 + 0.013125/4)^(4t-3) + R6 000(1 + 0.013125/4)^(4t)
Rearranging the terms gives us: R194 000(1 + 0.013125/4)^(4t) - R6 000(1 + 0.013125/4)^(4t-1) - R6 000(1 + 0.013125/4)^(4t-2) - R6 000(1 + 0.013125/4)^(4t-3) - R200 000(1 + 0.013125/4)^(4t) = 0
Using trial and error, we can solve this equation to find that t = 5.22 years (rounded to 2 decimal places). Therefore, it will take Andrew approximately 5.22 years to settle the loan.
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Next question? Does anybody know it?
Answer:
0
Step-by-step explanation:
Answer:
the answer is undefined.
Step-by-step explanation:
-9-3
5-5
-12⇒
0⇔ its undefined.don´t forget to brainllest.
A statistical technique that would allow a researcher to cluster such traits as being talkative, social, and adventurous with extroversion is called:_______
A statistical technique that would allow a researcher to cluster such traits as being talkative, social, and adventurous with extroversion is called factor analysis.
Describe Statistical technique?Statistical techniques are methods and procedures used in the collection, analysis, interpretation, and presentation of data. These techniques involve the use of mathematical and statistical models to draw meaningful insights and conclusions from data.
Some common statistical techniques include:
Descriptive statistics: These techniques are used to summarize and describe the key features of a dataset, such as central tendency, variability, and distribution.
Inferential statistics: These techniques are used to make inferences about a larger population based on a sample of data. This involves using probability theory to estimate population parameters and test hypotheses.
Regression analysis: This technique is used to model the relationship between one or more independent variables and a dependent variable.
Hypothesis testing: This technique is used to test the validity of a hypothesis or claim about a population using sample data.
Time series analysis: This technique is used to analyze data that varies over time, such as stock prices or weather patterns.
Cluster analysis: This technique is used to group similar observations together based on their characteristics.
Data mining: This technique involves the use of automated methods to discover patterns and relationships in large datasets.
Statistical techniques are widely used in many fields, including business, economics, social sciences, medicine, and engineering. They are used to make informed decisions, identify trends and patterns, and to understand complex systems.
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5The measure of angle 1 is greater than 97° and at most 115°. Graph the possible values of x. (9x + 7)
Angle 1 has a measure of greater than 97° and no more than 115°. (that means less than or equal to)
An angle is formed when two straight lines or rays meet at a single terminal. The place where two points converge is known as an angle's vertex. The Latin term "angulus," which means "corner," is whence the word "angle" gets its name." An angle is a shape in planar geometry made up of two rays or lines that have a common termination. The English word "angle" derives from the Latin word "angulus," which means "corner." The shared terminus of two rays is known as the vertex, and the two rays are referred to as sides of an angle.
This means that:
< 1 ? 97
< 1 ≤ 115
Angle 1 in the diagram is equivalent to (9x + 7). Because they are different internal angles, this is the case.
Hence, the following follows:
9x+7 ? 97
And
9x+7 ≤ 115
Solve for x:
9x? 97-7
9x? 90
Divide through by 9
x? 10
And
9x ≤ 115-7
9x ≤ 108
Divide through by 9
x ≤ 12
10i ≤ 12
As a result, the following is the number line graph representing the range of potential values of x:
The number line is that.
0 2 4 6 8 10 12
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please help for algebra 1
Answer:
A: first choice
x^4
Step-by-step explanation:
When you divide two powers with the same base, you subtract the exponents, not divide.
The step x^8/x^4 is correct.
The next step should be x^(8 - 4), not x^8/4.
The correct simplification is x^4.
Answer:
A: first choice
x^4
Select the interval where h(c) < 0.
A) -3
B)2
C)4
Answer:
Option C: 4
Hope this helps!
Quando colocamos roupas molhadas no varal em dias quentes percebemos que as roupas depois de um tempo ficam secas. Qual o estado físico que se encontra nas roupas molhadas? e nas roupas secas?
Answer:
Liquid water to vapor waterStep-by-step explanation:
This problem is about our wet clothe, when we put it under the Sun to dry.
Notice that the clothe is wet at the beginning, but after a certain time, it gets dry. This phenomenon is beacuse the change of the state of the water inside the clothe.
You see, at the beginning, the water is in liquid state making the wet effect, then that water transforms into vapor, makign the dry effect.
Therefore, the answer is "liquid water to vapor water", that's the change.
A vehicle was valued at $36,000 in the year 2011. The value depreciated to $12,000 by the year 2015. Assume that the car continues to drop at a constant rate. How long will it take for the car to be valued at $800?
The car will cost $ 800 after a depreciation time of approximately 6 years.
In what year does a car cost $ 800 due to depreciation?
Herein we are informed about the case of a car bought in 2011 at a cost of $ 36,000 and that depreciates linearly every year. Then, the depreciation function is described below:
c(t) = c' + m · t
Where:
c' - Initial cost of the car, in monetary unit.m - Depreciation rate, in monetary unit per year.t - Time, in years.If we know that c(0) = 36,000, c(4) = 12,000 and c(t) = 800, then the depreciation rate is:
m = (12,000 - 36,000) / (4 - 0)
m = - 24,000 / 4
m = - 6,000
800 = 36,000 - 6,000 · t
6,000 · t = 35,200
t = 35,200 / 6,000
t = 5.867
The expected depreciation time is approximately 6 years.
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Find the solution of the differential equation that satisfies the given initial condition.
dy/dx = x/y, y(0) = -2
The solution to the given differential equation as required is; y = √(x² + 4).
What is the solution to the given differential equation?As evident in the task content;
dy / dx = x / y, y(0) = -2
Therefore, we have that;
dy (y) = dx (x)
By integration of both sides indefinitely;
y² / 2 = x²/2 + C
y² = x² + 2c
y = √(x² + 2c)
Hence, using the initial conditions;
-2 = √(0² + 2c)
-2 = √2c
2c = 4
c = 2.
Hence, the required solution of the differential equation as given is; y = √(x² + 4) since c = 2.
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Mr. Ingram's lunch at a restaurant costs $13.00, without tax. He leaves the
waiter a tip of 17% of the cost of lunch, without tax. What is the total cost
of the lunch, including the tip, without tax?
$2.21
$10.79
$13.17
$15.21
The function f(x) = 10,000(0.898)x , where x is the time in years, models a declining lemming population. How many lemmings will there be in 5 years?
Given the following function:
\(f(x)=10000(0.898)^x\)Where x is the time in years, models a declining lemming population.
We will find the number of lemmings after 5 years
So, we will substitute x = 5
\(f(5)=10,000(0.898)^5=10,000*0.583958=5839.58095\)Rounding to the nearest whole number
so, the number of lemmings after 5 years = 5840
Answer:
the specific answer is 5,840
Brainliest question please help me answer my question please
Answer:
A) inside the circle
Step-by-step explanation:
equation of the circle is:
\((x-a)^{2} + (y-b)^{2} = r^{2}\)
where (a,b) is center of the circle and r is radius so
\(x^{2} + y^{2} = r^{2}\) now plug in given point to find the radius
\((6)^{2} + (-4)^{2} = r^{2}\)
36 +16 = 52 so
r = \(\sqrt{52}\) ≈ 7.2 or \(r^{2} =52\)
when you plug point (√2 , -7) into equation of the circle
(√2)^2 + (-7)^2 = 2 +49 =51
51 is less than 52 so this is inside of the circle
Answers quick plzzzzz
Answer:
y = -5
...
.............
100bbl/ day of oil is flowing in a 2 inch inner diameter wellbore with pipe relative roughness of 0.001. The oil has density of 48lbm/ft 3 and viscosity of 1.8cp. The wellbore is deviated 15 degrees from horizontal flow and has length of 6,000ft. The bottom hole flowing wellbore pressure is 2,200psi.
a) Obtain the potential pressure drop in the wellbore (psi).
b) Determine the frictional pressure drop in the wellbore (psi).
c) If there is also gas flowing in the wellbore at 150ft 3 / day covering 20% of the total pipe volume, calculate the in-situ oil velocity (ft/s).
d) For case (c), determine the flow regime of the two-phase flow.
a) To obtain the potential pressure drop in the wellbore, we can use the hydrostatic pressure equation.
The potential pressure drop is equal to the pressure gradient multiplied by the length of the wellbore. The pressure gradient can be calculated using the equation: Pressure gradient = (density of oil × acceleration due to gravity) × sin(θ), where θ is the deviation angle of the wellbore from horizontal flow. In this case, the pressure gradient would be (48 lbm/ft^3 × 32.2 ft/s^2) × sin(15°). Multiplying the pressure gradient by the wellbore length of 6,000 ft gives the potential pressure drop.
b) To determine the frictional pressure drop in the wellbore, we can use the Darcy-Weisbach equation. The Darcy-Weisbach equation states that the pressure drop is equal to the friction factor multiplied by the pipe length, density, squared velocity, and divided by the pipe diameter. However, to calculate the friction factor, we need the Reynolds number. The Reynolds number can be calculated as (density × velocity × diameter) divided by the oil viscosity. Once the Reynolds number is known, the friction factor can be determined. Finally, using the friction factor, we can calculate the frictional pressure drop.
c) To calculate the in-situ oil velocity, we need to consider the total volume of the pipe, including both oil and gas. The total pipe volume is calculated as the pipe cross-sectional area multiplied by the wellbore length. Subtracting the gas volume from the total volume gives the oil volume. Dividing the oil volume by the total time taken by the oil to flow through the pipe (converted to seconds) gives the average oil velocity.
d) The flow regime of the two-phase flow can be determined based on the oil and gas mixture properties and flow conditions. Common flow regimes include bubble flow, slug flow, annular flow, and mist flow. These regimes are characterized by different distribution and interaction of the oil and gas phases. To determine the specific flow regime, various parameters such as gas and liquid velocities, mixture density, viscosity, and surface tension need to be considered. Additional information would be required to accurately determine the flow regime in this scenario.
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Assume that a procedure yields a binomial distribution with n trials and the probability of success for one trial is p. Use the given values of n and p to find the mean mu μ and standard deviation sigma σ. Also, use the range rule of thumb to find the minimum usual value mu minus 2 sigma μ−2σ and the maximum usual value mu plus 2 sigma μ+2σ. n equals = 200, p equals = 0.6
In summary: Mean (μ): 120, Standard deviation (σ): 6.93, Minimum usual value (μ - 2σ): 106.14 and Maximum usual value (μ + 2σ): 133.86
To find the mean mu μ of the binomial distribution, we use the formula mu = n*p. Therefore, mu = 200*0.6 = 120.
To find the standard deviation sigma σ, we use the formula sigma = sqrt(n*p*(1-p)). Therefore, sigma = sqrt(200*0.6*0.4) = 6.93.
Using the range rule of thumb, we can estimate the minimum usual value by subtracting 2 times the standard deviation from the mean, and the maximum usual value by adding 2 times the standard deviation to the mean. Therefore, the minimum usual value is mu - 2*sigma = 120 - 2*6.93 = 106.14, and the maximum usual value is mu + 2*sigma = 120 + 2*6.93 = 133.86.
So, in summary, the mean mu μ of the binomial distribution is 120, the standard deviation sigma σ is 6.93, the minimum usual value mu minus 2 sigma μ−2σ is 106.14, and the maximum usual value mu plus 2 sigma μ+2σ is 133.86.
For a binomial distribution, the mean (μ) and standard deviation (σ) can be calculated using the formulas:
μ = n * p
σ = √(n * p * (1 - p))
Given n = 200 and p = 0.6, we can find μ and σ:
μ = 200 * 0.6 = 120
σ = √(200 * 0.6 * (1 - 0.6)) = √(200 * 0.6 * 0.4) = √48 ≈ 6.93
Next, we can use the range rule of thumb to find the minimum and maximum usual values:
Minimum usual value (μ - 2σ):
120 - (2 * 6.93) = 120 - 13.86 ≈ 106.14
Maximum usual value (μ + 2σ):
120 + (2 * 6.93) = 120 + 13.86 ≈ 133.86
In summary:
Mean (μ): 120
Standard deviation (σ): 6.93
Minimum usual value (μ - 2σ): 106.14
Maximum usual value (μ + 2σ): 133.86
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Jalissa's mom purchased coffee from the local coffee shop. The first cup of coffee was $4.25. Each refill is $2.25. She also decided to get a bagel for $3.15. If Jalissa's mom had 2 refills and a $0.50 discount as part of the rewards program, how much did she spend at the coffee shop? $9.15 $12.40 $9.40 $11.40
Answer:
$11.40
Step-by-step explanation:
You want to know the mom's total spending if she bought ...
$4.25 cup of coffee2 refills at $2.25 each$3.15 bagelusing a $0.50 discount coupon.
SpendingThe total bill is the sum of the costs of the items, less the amount of the discount coupon:
$4.25 +2×2.25 +3.15 -0.50 = $11.40
She spent $11.40 at the coffee shop.
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Answer:
11.40
Step-by-step explanation:
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You use a juice mix to make orange juice.
You combine 12 ounces of the mix with 36 ounces of water.
What is a unit rate that describes your juice?
Answer: 12/48 = 25%
Step-by-step explanation: If the unit rate that characterizes my juice reflects its concentration, then there are 36 + 12 = 48 ounces of matter in total. The orange juice mix that we add is 12 ounces of mix, therefore the concentration is 12/48 = 25%.