A) Let C(x) the cost of manufacturing x refrigerators, since C is linearly related to x, then we can set the following equation:
\(C(x)=mx+b\text{.}\)To determine the values of m and b we will use the fact that:
\(\begin{gathered} C(43)=5075, \\ C(118)=10700. \end{gathered}\)Therefore we can set the following system of equations:
\(\begin{gathered} m\cdot43+b=5075, \\ m\cdot118+b=10700. \end{gathered}\)Subtracting the second equation from the first one we get:
\(\begin{gathered} m\cdot118+b-m\cdot43-b=10700-5075, \\ 75m=5625. \end{gathered}\)Dividing the above equation by 75 we get:
\(\begin{gathered} \frac{75m}{75}=\frac{5625}{75}, \\ m=75. \end{gathered}\)Substituting m=75 in 43m+b=5075, and solving for b we get:
\(\begin{gathered} 43\cdot75+b=5075, \\ b=5075-43\cdot75, \\ b=1850. \end{gathered}\)Therefore:
\(C(x)=75x+1850.\)B) Evaluating C(x) at x=123 we get:
\(\begin{gathered} C(123)=75\cdot123+1850, \\ C(123)=11075. \end{gathered}\)C) From the equation we get that the fixed cost is $1850.
D) The cost to produce each additional refrigerator is $75.
Answer:
(a)
\(C(x)=75x+1850.\)(b) $11075.
(c) $1850.
(d) $75.
Which of the following equations is equivalent to 3 • 12 = 36?
36 + 3 = 12
36 ÷ 3 = 12
36 • 3 = 12
36 – 3 = 12
Answer:
B
Step-by-step explanation:
36 ÷ 3 = 12 is basically the division version of the original equation. None of the other equations equal the same answer so B is the correct option.
36 ÷ 3 = 12 is equivalent to 3 • 12 = 36
jerry has constructed a multiple regression model and wants to test some assumptions of that model. in particular, he is testing for normality of the residuals. to do this jerry should:
What Jerry can do if he is testing for normality of the residuals in the regression analysis is to; construct a normal quantile plot of the residuals and see if the result is an approximately upward sloping straight line.
How to Interpret Regression Analysis?Regression Analysis creates an equation that is the best fit of the given data of both the dependent and the independent variables. Now, it should be noted that the residuals are the error in the regression equation predicted values as well as the actual sample values.
The quantile plot is basically a standard way to tell us whether the data is distributed. Now, If the data points stay quite close to an upward sloping line in the quantile plot, then it can be assumed that the residuals are normally distributed. Then, values of the coefficients are tested to check that they are not statistically equal to zero via a t-test. The t-test is required to know whether the results of the regression are seen to be significant. Finally, results of a t-test usually possess a requirement that the residuals, is normally distributed.
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select all the expressions that equal.. *see picture for problem*
Answer:
Step-by-step explanation:
oknjbgfkdfrgn jnfbfl
Arwen rolls a number cube (with sides labeled 1 through 6) twice. What is the
probability that the first or second result is the number 5?
The answer is 11/36.
Just how??
How do I do this? (Will give Brainliest) (Instructions if you could please)
Answer:
C
Step-by-step explanation:
It is known that the birth weights of full-term newborn infants in the U.S. have an approximately normal distribution with a mean weight of 6.8 lbs and a standard deviation of 1.7 lbs. Approximately what proportion of newborn babies will have a birth weight between 6 lbs and 8 lbs
Approximately 68.27% of newborn babies in the U.S. will have a birth weight between 6 lbs and 8 lbs.
In a normal distribution, about 68% of the data falls within one standard deviation of the mean. Given that the mean birth weight is 6.8 lbs and the standard deviation is 1.7 lbs, we can calculate the z-scores for the lower and upper limits of the desired range.
To find the z-score for 6 lbs, we subtract the mean from 6 and divide by the standard deviation: (6 - 6.8) / 1.7 = -0.47. Similarly, for 8 lbs, the z-score is (8 - 6.8) / 1.7 = 0.71.
Using the standard normal distribution table or a calculator, we can find the proportion of newborns with birth weights below 6 lbs (to the left of -0.47) and above 8 lbs (to the right of 0.71). Subtracting these proportions from 1 gives us the proportion between 6 lbs and 8 lbs.
Since the standard normal distribution is symmetric, the proportion of newborn babies with birth weights between 6 lbs and 8 lbs is approximately 0.6827, or 68.27%.
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The width of a rectangle is 4 feet, and the diagonal length of the rectangle is 13 feet. Which measurement is closest to the length of this rectangle in feet?
F 9ft
G 17 ft
H 12.4 ft
J 13.6 ft
Answer:
12.4
Step-by-step explanation:
Answer:
12.4
Step-by-step explanation:
please help i dont know how to do this
Help pleaseeeeeeeeee
Answer:
The value for X is 25
Step-by-step explanation:
I hope this helps you out!
Drag over the word that goes best with the image
The answer would be the surface area:
Definition:
Surface area: It is the sum of the area of all the surfaces of that object.Volume: scalar quantity expressing the amount of three-dimensional space enclosed by a closed surfaceBase: the lowest part or edge of something, especially the part on which it rests or is supported.The new figure that is produced in a transformation is called the
Let:
\(\begin{gathered} P=(x1,y1)=(-3,4) \\ P^{\prime}=(x2,y2)=(4,0) \end{gathered}\)\(\begin{gathered} x1+a=x2 \\ -3+a=4 \\ so\colon \\ a=4+3 \\ a=7 \\ ---- \\ y1+b=y2 \\ 4+b=0 \\ b=-4 \end{gathered}\)Therefore:
\((x,y)\to(x+7,y-4)\)HELPP ASAP I WILL GIVE 14 POINTS
Given:
A box-and-whisker plot of data set.
To find:
The percentage of the data values that are greater than 80.
Solution:
From the given box-and-whisker plot, it is clear that:
Minimum value = 8
First quartile = 60
Median = 68
Third quartile = 80
Maximum value = 92
We know that the 25% the data value are greater than or equal to third quartile because the third quartile divides the data in 75% to 25% and 80 is the third quartile.
Therefore, about 25% of the data values that are greater than 80.
Select the correct answer.
What is the value of this expression if h = 8. j = -1, and k = -12? J3k/h0
A. 36
B. 12
C.-12
D. 3/4
The value of equation which is given is 12.
According to the Statement
we have given the expression and the some values and we have to find the values of the expression after put the given values in it.
So,The given values are:
h = 8. j = -1, and k = -12
And the given equation expression are J³k/h⁰
Now Substitute the value in the expression then
J³k/h⁰
After putting the values the expression become
(-1)³-12/8⁰
(-1)(-12)/1
After solving the value become
12/1
12.
now the value of expression become is the 12 after put all the values in it.
So, The value of equation which is given is 12.
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10. Solve the system of
equations by substitution.
-8x + 2y = 4
y = 4x + 2
Answer: 4x-y+2=0 i think
Step-by-step explanation
Will you please help :)) thanks A tank pumps out liquid at a rate of 12 gallons every 20 days.
What is the unit rate in gallons per week?
Enter your answer as a mixed number in simplest form in the box.
Answer:
21/5 or 4 1/5
Step-by-step explanation:
Answer: 4 1/5
Step-by-step explanation:
Solve the problem.
The sum of two consecutive integers is -371. Find the larger integer.
-187
-186
-184
-185
Answer: -185 (choice D)
=========================================================
Explanation:
x = first integerx+1 = second integerNote how x+1 follows immediately after x. That's what "consecutive" means by definition. An example of consecutive integers would be 7,8,9,10.
Adding those two said integers will lead to -371
first+second = -371
x+(x+1) = -371
2x+1 = -371
2x = -371-1
2x = -372
x = -372/2
x = -186
x+1 = -186+1 = -185
Note how -186+(-185) = -371 to confirm the answer.
The two consecutive integers that add to -371 are -186, -185. The larger of the two is -185 since it's more to the right on the number line.
The answer is option D.The solution is in the attached file.
Find the distance between Laurel and Delmar if they are 9 cm apart on a map with a scale of 1 cm : 18 km.
If the ratio is 1:18, and we need to know how the other side for the ration 9:?, then we have to multiply 9x18.
9x18=162
so Laurel and Delmar are 162 km away
hope it helps! :3
Which values represent the independent variable? (–2, 4), (3, –2), (1, 0), (5, 5) A. {–2, 3, 1, 5} B. {4, –2, 0, 5} C. {–2, 4, 3, –2} D. {–2, –1, 0, 5} Please select the best answer from the choices provided A B C D
Answer:
The independent variable is the variable that is manipulated or changed during an experiment. In this case, the independent variable is represented by the x-values of the given points.
So, the answer would be option A: {-2, 3, 1, 5}
Step-by-step explanation:
brainliest Plsssss
Use a triple integral to find the volume of the solid enclosed by the paraboloids y = x^2 + z^2 and y = 32 - x^2 - z^2
The volume of the solid enclosed by the two paraboloids is approximately 1365.34π cubic units.
Here, we have to find the volume of the solid enclosed by the two paraboloids \(y = x^2 + z^2\) and \(y = 32 - x^2 - z^2\),
we need to set up a triple integral in cylindrical coordinates.
In cylindrical coordinates, we have:
x = r cos(θ)
z = r sin(θ)
y = y
The limits of integration for r, θ, and y will depend on the region of integration.
First, let's find the intersection points of the two paraboloids:
\(x^2 + z^2 = 32 - x^2 - z^2\\2x^2 + 2z^2 = 32\\x^2 + z^2 = 16\)
This represents a circular region with radius r = 4 in the x-z plane.
Now, let's find the limits of integration for r, θ, and y:
For r:
Since the circular region has a radius of 4, the limits of r will be from 0 to 4.
0 ≤ r ≤ 4
For θ:
The intersection points form a complete circle in the x-z plane, so the limits of θ will be from 0 to 2π.
0 ≤ θ ≤ 2π
For y:
The lower paraboloid is given by \(y = x^2 + z^2\), and the upper paraboloid is given by \(y = 32 - x^2 - z^2\).
The limits of y will be from the lower paraboloid to the upper paraboloid.
\(x^2 + z^2 \leq y \leq 32 - x^2 - z^2\)
Now, we can set up the triple integral to find the volume V:
V = ∫∫∫ (y) dy dθ dr
V = ∫∫∫ \((r^2 cos^2(\theta) + r^2 sin^2(\theta)) dy d\theta dr\)
V = ∫∫∫ \((r^2) dy d\theta dr\)
V = ∫∫ \((r^2) y|_{(x^2+z^2)}^{(32-x^2-z^2)} d\theta dr\)
V = ∫∫ \((r^2) (32 - 2x^2 - 2z^2) d\theta dr\)
V = ∫ \((32r^2 - 2r^2(x^2 + z^2)) d\theta dr\)
V = ∫ \((32r^2 - 2r^2r^2) d\theta dr\)
V = ∫ \((32r^2 - 2r^4) d\theta dr\)
Now, integrate with respect to θ from 0 to 2π:
V = ∫(0 to 2π) ∫(0 to 4) \((32r^2 - 2r^4)\) dr dθ
Now, integrate with respect to r from 0 to 4:
V = ∫(0 to 2π) \([(32/3)r^3 - (1/3)r^5] |_0 ^4\) dθ
V = ∫(0 to 2π) \([(32/3)(4^3) - (1/3)(4^5)]\) dθ
V = ∫(0 to 2π) [(32/3)(64) - (1/3)(1024)] dθ
V = ∫(0 to 2π) [682.67] dθ
V = 682.67 * (2π) - 682.67 * (0)
V = 1365.34π cubic units
Therefore, the volume of the solid enclosed by the two paraboloids is approximately 1365.34π cubic units.
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how to know if a function has a vertical asymptote
To determine if a function has a vertical asymptote, you need to consider its behavior as the input approaches certain values.
A vertical asymptote occurs when the function approaches positive or negative infinity as the input approaches a specific value. Here's how you can determine if a function has a vertical asymptote:
Check for restrictions in the domain: Look for values of the input variable where the function is undefined or has a division by zero. These can indicate potential vertical asymptotes.
Evaluate the limit as the input approaches the suspected values: Calculate the limit of the function as the input approaches the suspected values from both sides (approaching from the left and right). If the limit approaches positive or negative infinity, a vertical asymptote exists at that value.
For example, if a rational function has a denominator that becomes zero at a certain value, such as x = 2, evaluate the limits of the function as x approaches 2 from the left and right. If the limits are positive or negative infinity, then there is a vertical asymptote at x = 2.
In summary, to determine if a function has a vertical asymptote, check for restrictions in the domain and evaluate the limits as the input approaches suspected values. If the limits approach positive or negative infinity, there is a vertical asymptote at that value.
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.Find the amount of each payment to be made into a sinking fund earning 8% compounded monthly to accumulate $57,000 over 8 years. Payments are made at the end of each period. The payment size is $ (Do not round until the final answer. Then round to the nearest cent.)
The amount of each payment to be made into a sinking fund earning 8% compounded monthly to accumulate $57,000 over 8 years is $505.45.
A sinking fund is a fund that an organization or a government sets up to help repay its debts or cover its planned expenditures. It is also referred to as a reserve fund. The purpose of a sinking fund is to make payments towards a debt, such as a bond issue when it becomes due. A sinking fund helps reduce the risks associated with default. Sinking funds are used to pay off debts, replace assets, or fund upcoming capital projects.
What is Compounded Monthly?
Compounded Monthly is when interest is paid on the original principal as well as on the accrued interest. In simple terms, Compound interest is the interest that is earned not only on the original deposit but also on any interest that has already been earned. The monthly compounding formula is calculated using this method.
What is the amount of each payment to be made into a sinking fund earning 8% compounded monthly to accumulate $57,000 over 8 years?
To find the amount of each payment to be made into a sinking fund earning 8% compounded monthly to accumulate $57,000 over 8 years, we use the formula:
PMT = FV([i/12]) / [(1 + [i/12])^(n*12) - 1]
where,
PMT = Paymenti = Interest rateFV
= Future value of the investment = number of years.
In this case, the amount of the payment that needs to be made into a sinking fund can be calculated as follows: Let's first convert the interest rate to
monthly interest rates = 8% / 12 = 0.6667%
FV = $57,000n = 8 years
PMT = 57000 / [(1 + 0.6667%)^(8*12) - 1]/ [0.6667%(1 + 0.6667%)^(8*12)]
PMT = $505.45
Hence, the amount of each payment to be made into a sinking fund earning 8% compounded monthly to accumulate $57,000 over 8 years is $505.45.
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four fair dice are rolled, and the top numbers noted. what is the probability that the sum of the four top numbers is 17?
Answer:[6/36]
Step-by-step explanation:
This is so simple BUT I CANT FIGURE IT OUT HELP ME PLEASE
Answer:
(x+4) (x-8)
Step-by-step explanation:
The function is represented by the zeros
(x-a) (x-b) ....... = 0 where a,b,..... are the zeros
There are 2 zeros so there are 2 factors
( x- -4) ( x-8) = 0
(x+4) (x-8) =0
Not sure if i understand but can someone help me understand by what its means of the problem?
Answer:
Variable: b
Equation: $12b + $16 = $112
Solution: 8 books
Step-by-step explanation:
$12b + $16 = $112
$12b + $16 - $16 = $112 - $16
$12b = $96
$12b ÷ $12 = $96 ÷ $12
b = 8
Hope that helps.
PLEASE HELP NOW!!! THX :))
You are baking doughnuts for your class. There are 8 total students in your class and you have baked 11 doughnuts. Write and solve an equation to find the additional number x of doughnuts you need to bake in order to have 4 doughnuts for each student. Write your equation so that the units on each side of the equation are doughnuts per student.
Answer: 4x + 11 = 4(8)
Step-by-step explanation:
F(x, y) = (2x - 3y)i + (-3x + 4y - 8)j is a conservative vector field.
The vector field is conservative and calculates its potential function does not exist as a function f F = ∇f.
To determine whether or not F is a conservative vector field, we need to check if the mixed partial derivatives of its components are equal. The vector field F can be written as F(x,y) = (2x - 3y)i + (-3x + 4y - 8)j.
To compute the mixed partial derivatives, we take the partial derivative of the y-component with respect to x, and the partial derivative of the x-component with respect to y. Doing so, we get:
∂Fy/∂x = -3
∂Fx/∂y = -3
Since these partial derivatives are not equal, we can conclude that F is not a conservative vector field.
Therefore, there does not exist a function f such that F = ∇f.
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HELP MATH SUCKSSSSSS 7 and 8
Answer:
Step-by-step explanation:
will name brainliest
Answer:
DE ≈ 6.97
Step-by-step explanation:
Using the cosine ratio in the right triangle
cos55° = \(\frac{adjacent}{hypotenuse}\) = \(\frac{EF}{DE}\) = \(\frac{4}{DE}\) ( multiply both sides by DE )
DE × cos55° = 4 ( divide both sides by cos55° )
DE = \(\frac{4}{cos55}\) ≈ 6.97 ( to the nearest hundredth )
discuss any two advantages of superposition theorem
compared to other circuit theorms
The advantages of the superposition theorem compared to other circuit theorems are its simplicity and modularity in circuit analysis, as well as its applicability to linear circuits.
Superposition theorem is a powerful tool in circuit analysis that allows us to simplify complex circuits and analyze them in a more systematic manner. When compared to other circuit theorems, such as Ohm's Law or Kirchhoff's laws, the superposition theorem offers several advantages. Here are two key advantages of the superposition theorem:
Simplicity and Modularity: One major advantage of the superposition theorem is its simplicity and modular approach to circuit analysis. The theorem states that in a linear circuit with multiple independent sources, the response (current or voltage) across any component can be determined by considering each source individually while the other sources are turned off. This approach allows us to break down complex circuits into simpler sub-circuits and analyze them independently. By solving these individual sub-circuits and then superposing the results, we can determine the overall response of the circuit. This modular nature of the superposition theorem simplifies the analysis process, making it easier to understand and apply.
Applicability to Linear Circuits: Another advantage of the superposition theorem is its applicability to linear circuits. The theorem holds true for circuits that follow the principles of linearity, which means that the circuit components (resistors, capacitors, inductors, etc.) behave proportionally to the applied voltage or current. Linearity is a fundamental characteristic of many practical circuits, making the superposition theorem widely applicable in real-world scenarios. This advantage distinguishes the superposition theorem from other circuit theorems that may have limitations or restrictions on their application, depending on the circuit's characteristics.
It's important to note that the superposition theorem has its limitations as well. It assumes linearity and works only with independent sources, neglecting any nonlinear or dependent sources present in the circuit. Additionally, the superposition theorem can become time-consuming when dealing with a large number of sources. Despite these limitations, the advantages of simplicity and applicability to linear circuits make the superposition theorem a valuable tool in circuit analysis.
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In this assignment, you will conduct research to find the best loan for your first car. Using reference
materials and Internet sites, you will collect information for a used car and loan options to buy the car.
You will use an online loan calculator to find the best option for a used car loan. You will do a multimedia
presentation on the best loan option for a used car and the resources you used, along with the options
you explored to decide on the best loan option. A list of search term suggestions for finding resources is
provided at the end of this guide.
Your presentation should include the following slides. The slides should be a title slide, a slide containing
your used car information, a slide containing information on loan options with a bank and with a credit
union, a slide including calculations, a slide comparing the loan options, a slide with the best choice for a
car loan, and a works-cited slide.
We have that for the Question, it can be said that this is a way to approach the presentation
The first slide should bear the presentation titleFollowed by your pick or selected car information,its specificationsFollowed by a slide on the koan option you've selected as bestFollowed by a slide on the calculation earlier doneFollowed by a slide on the summary of different loan calculations calculation earlier done on different options comparedFollowed by a slide on your eventual pickFollowed by a slide on the References or sources of information
Generally we are asked to conduct a research on your car using reference
materials and Internet sites
Where Reference materials soak of none internet site that relate to the topic of cars
While
Internet sites refers to sites on the net that gives detailed and affirmed information on used cars
e.g www.cars.com
Hence making use of a calculator online like Loan calculator at www.calculator.net ,you decide the best used cars based on price and Quality ratioUsing a multimedia entails the use of modern media gadgets and apps to make a presentation, and here your material will be those sites visited ,those none site resources used e.g QuestionnairesHow you made your price to quality ratio assessment, the other option you also thought where good in comparison with your optionNow on the slides
The first slide should bear the presentation titleFollowed by your pick or selected car information,its specificationsFollowed by a slide on the koan option you've selected as bestFollowed by a slide on the calculation earlier doneFollowed by a slide on the summary of different loan calculations calculation earlier done on different options comparedFollowed by a slide on your eventual pickFollowed by a slide on the References or sources of information
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