Answers
Answer:
253 degree is the answer
Related Questions
________ (please use the acronym) is a set of best practices that helps an organization to maximize the benefits of an information system, while at the same time establishing appropriate controls to ensure minimum errors.
Answers
The correct answer is ITIL (Information Technology Infrastructure Library). The acronym that best fits this description is "ITIL" or Information Technology Infrastructure Library.
ITIL is a framework that provides guidelines for IT service management and includes a set of best practices for managing IT services. ITIL helps organizations to achieve their objectives by establishing appropriate controls to ensure minimum errors and maximizing the benefits of an information system. ITIL (Information Technology Infrastructure Library) is a set of best practices that helps an organization to maximize the benefits of an information system, while at the same time establishing appropriate controls to ensure minimum errors.
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Solve the system of equations.
7x−3y=20
y=5x−4
x=
y=
Answers
Answer:
Step-by-step explanation:
substitute the value of y in the first equation.
7x-3(5x-4)=20
7x-15x+12=20
-8x=20-12
x=8/-8
x= -1
then you substitute the value of x on the y equation to find y
y=5×-1 -4
y= -5-4
y= -9
Answer:
x = -1, and y = -9
Step-by-step explanation:
This is done by solving one of the two equations for x or y, then substituting it in place of that variable in the other equation.
Since y is already clearly defined in the second equation let's go with that:
\(Given\ 7x - 3y = 20,\ and\ y = 5x - 4\)
\(7x - 3(5x - 4) = 20\)
\(7x - 15x + 12 = 20\)
\(7x - 15x = 20 - 12\)
\(-8x = 8\)
\(x = -1\)
Now we can replace x in the equation for y with -1:
\(y = 5(-1) - 4\)
\(y = -5 - 4\)
\(y = -9\)
To make sure our answers are correct, let's substitute them into the original equations:
\((-9) = 5(-1) - 4\\-9 = -5 - 4\\-9 = -9\)
Good, let's test the other equation
\(7(-1) - 3(-9) = 20\\-7 - (-27) = 20\\-7 + 27 = 20\\20 = 20\)
So we know that our answer is correct.
Please help with math
Answers
Answer:
Scale factor = 3
Step-by-step explanation:
Using similar triangles
AT/AG = AB/AC
9/3 = x+10/3x-10
Cross multiply
3(x+10) = 9(3x-10)
Expand
3x+30 = 27x-90
3x-27x = -90 - 30
-24x = -120
x = 120/24
x = 5
For the larger triangle;
AC = 3x-10
AC = 3(5)-10
AC =15-10
AC = 5
AB = x+10
AB = 5+10
AB = 15
For the scale factor;
Since AT/AG = AB/AC
9/15 = 3/5
3*3/5*3 =3/5
Since the numerator and denominator of the larger triangle is multiplies by the same factor i.3 3. Hence the scale factor is 3
We have four options for investing. The amount to be invested is $250,000. The four options are cash (Xc), bonds (Xb), stocks (Xs) or options (X6). Cash has a projected return of 1%, bonds 3%, stocks 10% and options 20%. A minimum of 20% of the total should be held in cash. Options cannot exceed stocks and bonds combined. Stocks should
be more than bonds.
Which of the following constraints ensures that options cannot exceed cash and stocks combined?
1) Xc <= Xo + Xs
2) Xo <= Xc+ Xs
3) Xc >= Xo + Xs
4) Xo >= Xc + Xs
Answers
The constraint that ensures options (Xo) cannot exceed cash (Xc) and stocks (Xs) combined is Xo <= Xc + Xs. The correct option is (2).
This constraint states that the amount invested in options (Xo) should be less than or equal to the sum of the amounts invested in cash (Xc) and stocks (Xs).
This ensures that the investment in options does not exceed the combined investment in cash and stocks.
Options are subject to this constraint because the problem statement specifies that options cannot exceed stocks and bonds combined.
By including cash in the constraint, it ensures that options are limited to the remaining amount after accounting for cash and stocks.
To summarize, the constraint Xo <= Xc + Xs ensures that options cannot exceed the combined investment in cash and stocks.
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Which equation has an extraneous solution?
Answers
Answer:
\( \sqrt[5]{x } = - 2 = - 35\)
Write the term that contains A^6 in the binomial expansion of (A + 3B)^10
Answers
The term which contains A⁶ in the given binomial expansion as required to be determined is; 17010A⁶B⁴.
Which term contains A⁶ in the binomial expansion?It follows from the task content that the term which contains A⁶ in the binomial expansion is to be determined.
From binomial expansions; the term containing A⁶ in the expansion would be the fifth term and it's coefficient would be; ¹⁰C⁴ = 210.
Therefore, the term would be; 210 (A)⁶ (3B)⁴.
= 210A⁶ • 81B⁴
= 17010A⁶B⁴.
Ultimately, the term that contains A⁶ in the binomial expansion is; 17,010A⁶B⁴.
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a box contains 4 white marbles and 3 red marbles. a second box has 3 white marbles and 6 blue marbles. if one marble is drawn from each box, what is the probability that 1 red marble and 1 blue marblle will be drawn
Answers
The probability of drawing 1 red marble and 1 blue marble from the given boxes is 2/7.
The probability of drawing 1 red marble and 1 blue marble from the given boxes can be calculated using the concept of probability and sample space. The probability can be defined as the ratio of the number of favorable outcomes to the total number of possible outcomes. The sample space can be defined as the set of all possible outcomes.
Given, a box contains 4 white marbles and 3 red marbles. A second box has 3 white marbles and 6 blue marbles. If one marble is drawn from each box, the probability that 1 red marble and 1 blue marble will be drawn can be calculated as follows:
The total number of possible outcomes is given by the product of the number of marbles in each box:
Total number of possible outcomes = 7 × 9 = 63
The number of favorable outcomes can be calculated by considering all possible cases where one red marble is drawn from the first box and one blue marble is drawn from the second box.
The number of ways to draw one red marble from the first box = 3
The number of ways to draw one blue marble from the second box = 6
Therefore, the number of favorable outcomes = 3 × 6 = 18
Hence, the probability of drawing 1 red marble and 1 blue marble can be given as follows:
Probability = Number of favorable outcomes / Total number of possible outcomes
Probability = 18/63
The probability of drawing 1 red marble and 1 blue marble from the given boxes is 2/7.
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A custodian has a large key ring that has a diameter of 4 inches. What is the approximate area of the key ring? Use 3. 14 for π 12. 56 in2 50. 24 in2 25. 12 in2 15. 26 in2
Answers
The approximate area of the key ring is 12.56 square inches.
The area of a circle can be calculated using the formula:
A = π * r²
where A is the area and r is the radius of the circle.
In this case, the diameter of the key ring is given as 4 inches. The radius (r) is half the diameter, so the radius is 4 / 2 = 2 inches.
Substituting the value of the radius into the formula, we have:
A = 3.14 * (2²)
A = 3.14 * 4
A ≈ 12.56 in²
Thus, the correct answer is option 12.56 in².
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Help?? I have more questions too :(
Answers
Please find attached photograph for your answer. Don't forget to mark me Brainliest if you like my answer
Applying PL, construct a symbolicmodel of the logical structure of the following argument. Construct a truth table to determine if the argument is valid. Be sure to state whether the argument is valid or invalid. If the argument is invalid then indicate a row that shows this. (4 points)
Jayco qualifies as a small business if and only if it has sales that are not large enough to influence its environment and it is privately owned by a small group of individuals. Jayco does not qualify as a small business. Therefore, Jayco must not be privately owned by a small group of individuals.
Please use these symbols: ~, v, • , ⊃, ≡
Answers
We can see that there is at least one row where all premises are true (row 7), but the conclusion is false. Therefore, the argument is invalid.
To construct a symbolic model of the argument, let's define the following symbols:
P: Jayco qualifies as a small business.
Q: Jayco has sales that are not large enough to influence its environment.
R: Jayco is privately owned by a small group of individuals.
Now we can represent the statements in symbolic form:
Premise 1: P ≡ (Q • R)
Premise 2: ~P
Conclusion: ~R
To determine if the argument is valid or invalid, we can construct a truth table:
| P | Q | R | P ≡ (Q • R) | ~P | ~R |
|---|---|---|-------------|----|----|
| T | T | T | T | F | F |
| T | T | F | F | F | T |
| T | F | T | T | F | F |
| T | F | F | F | F | T |
| F | T | T | F | T | F |
| F | T | F | T | T | T |
| F | F | T | F | T | F |
| F | F | F | T | T | T |
From the truth table, we can see that there is at least one row where all premises are true (row 7), but the conclusion is false. Therefore, the argument is invalid.
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which matrix equation represents the system of equations? 2x-3y=-1 =x y=3
Answers
The correct matrix equation that represents the given system of equations is (b) \(\left[\begin{array}{cc}2&1\\5&3\end{array}\right]\) \(\left[\begin{array}{c}x\\y\end{array}\right]\) = \(\left[\begin{array}{c}5\\12\end{array}\right]\) .
Let's break down the process to understand why this is the correct choice.
The system of equations is:
2x + y = 5 ...(1)
5x + 3y = 12 ...(2)
To represent this system of equations in matrix form, we arrange the coefficients of the variables (x and y) in a matrix, and the constant terms on the right side of the equation in another matrix.
For equation (1), the coefficients of x and y are 2 and 1, respectively, and the constant term on the right side is 5. Therefore, the first matrix equation is:
[2 1][x] = [5]
Similarly, for equation (2), the coefficients of x and y are 5 and 3, respectively, and the constant term on the right side is 12. Therefore, the second matrix equation is:
[5 3][y] = [12]
Hence, option (b) is the correct representation of the system of equations.
Correct Question :
Which matrix equation represents the system of equations?
2x+ y =5
5x+3y -12
a) \(\left[\begin{array}{c}x\\y\end{array}\right]\) \(\left[\begin{array}{cc}2&1\\5&3\end{array}\right]\) = \(\left[\begin{array}{c}5\\12\end{array}\right]\)
b) \(\left[\begin{array}{cc}2&1\\5&3\end{array}\right]\) \(\left[\begin{array}{c}x\\y\end{array}\right]\) = \(\left[\begin{array}{c}5\\12\end{array}\right]\)
c) \(\left[\begin{array}{cc}2&5\\1&3\end{array}\right]\) \(\left[\begin{array}{c}x\\y\end{array}\right]\) = \(\left[\begin{array}{c}5\\12\end{array}\right]\)
d) \(\left[\begin{array}{cc}2&1\\5&3\end{array}\right]\) \(\left[\begin{array}{c}y\\x\end{array}\right]\) = \(\left[\begin{array}{c}5\\12\end{array}\right]\)
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The average age in a sample of 90 students at City College is 20. As a result of this sample, it can be concluded that the average age of all the students at City College:
Answers
If the sample is not truly representative, the conclusion may not accurately reflect the actual average age of all the students at the college.
Based on the given information, it can be concluded that the average age of all the students at City College is likely around 20. However, it's important to note that this conclusion is only valid if the sample of 90 students is representative of the entire student population at City College. If the sample is not truly representative, the conclusion may not accurately reflect the actual average age of all the students at the college.
The average age in a sample of 90 students at City College is 20. However, based on this sample alone, it cannot be conclusively determined that the average age of all the students at City College is also 20. This is because the sample may not be fully representative of the entire student population. More information or a larger sample would be needed to make a more accurate conclusion about the average age of all students at City College.
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If the sample of 90 students is representative of the entire student population at City College, then we can conclude that the average age of all students is approximately 20 years old.
Based on the given information, the average age in a sample of 90 students at City College is 20.
To determine if this sample can be used to conclude the average age of all students at City College, we need to consider these terms:
Sample:
A subset of a population, which in this case is the group of 90 students at City College.
Population:
The entire group of students at City College that we want to make a conclusion about.
Average (Mean) Age:
The sum of ages divided by the total number of students, in this case, 20 years.
Representativeness:
How well the sample reflects the characteristics of the entire population.
If the sample of 90 students is representative of the entire student population at City College, then we can conclude that the average age of all students is approximately 20 years old.
However, if the sample is not representative, the conclusion may not be accurate.
To make a more accurate conclusion, it is important to ensure that the sample is representative by using a larger sample size or random sampling methods.
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What reasons are there to make implied premises explicit?
Answers
Making implied premises explicit is important for ensuring clarity, transparency, evidence-based arguments, logical rigor, better communication, and improved decision making
There are several reasons to make implied premises explicit:
Clarity: Implied premises can sometimes be ambiguous or unclear. Making them explicit can help to avoid confusion and ensure that all parties involved understand the argument.
Transparency: Implied premises can hide the underlying assumptions of an argument. Making them explicit can increase the transparency of the argument and allow for greater scrutiny of its validity.
Evidence: Implied premises are often based on unstated assumptions or beliefs. Making them explicit can allow for the introduction of evidence to support or challenge these assumptions.
Logical rigor: Implied premises can make an argument appear stronger than it actually is. By making them explicit, the argument can be evaluated more rigorously and any weaknesses or gaps can be identified.
Better communication: Implied premises can be difficult to detect, especially in complex arguments. By making them explicit, the argument becomes easier to follow and understand, facilitating better communication between the parties involved.
Improved decision making: When the premises of an argument are made explicit, it becomes easier to weigh the pros and cons and make informed decisions based on the evidence presented.
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whats 4x5x6x32x4x4x4x4
Answers
Answer:
983,040
Step-by-step explanation:
4×5=20
6×32=192
4×4=16
4×4=16
20×192×16×16
=983,040
Simplify 7x + 2x + 5y - 2y
A) 9 x + 3 y
B) 9 x + 7 y
C) 12 xy
Answers
Answer:
A
Step-by-step explanation:
7x + 2x = 9x
5y-27 = 3y
9x + 3y
Hope this Helped
Brainliest is appreciated.
Answer: A. 9x + 3y
Step-by-step explanation:
For simplifying variable expressions, what you should do is to combine like terms.
Solve:
Given
7x+2x+5y-2y
Combine [x]
=(7x+2x)+5y-2y
=9x+5y-2y
Combine [y]
=9x+(5y-2y)
=9x+3yWhat do I put in the blank box? Could you also add step by step explanation? If you cant its fine :)
Answers
Answer:
its 34/5
Step-by-step explanation:
change that mixed fraction by simply multiplying 6×5 then add 4 you'll get 34 then place it over the denominator 5 =34/5........ hope it helps
Hi! I’ve tried at this question many times and still do not understand why the answer isn’t B but A. Please explain as best as you can! Thanks! (The question is below in the picture)
Answers
Answer:
Graph B is not linear.
Step-by-step explanation:
This question asks for a linear relationship. Graph B is not linear.
Please look closely at the attached images where I gave graphed these points.
I hope this helps. Please let me know if you have questions.
rawing a causal diagram. (a) Draw a causal diagram for the research question ?do long shift hours make doctors give lower-quality care?? that incorporates the following features (and only the following features): i. Long shift hours ( "Long Shift") affect how tired doctors are ("Tiredness") affects the quality of care ("Quality of Care"). ii. How long shifts are is often decided by the characteristics of the hospital the doctor works at ("Hospital Characteristics"). There are plenty of things about a given hospital that also affect the quality of care, like its funding level, how crowded it is, and so on. iii. A new policy that reduces shift times may be implemented at a hospital (assumed to be determined by some unobservable change in policy preferences) but this policy does not affect the quality of care ("Policy"). b) Suppose we have a cross-sectional data set across different hospitals. This data set contains the hospital-level observations about (1) the quality of care ("Quality of Care"), (2) the average shift hours of doctors ("Shift hours"), (3) the survey result on how tired doctors are on average at the hospital, (4) various hospital characteristics ("Hospital Characteristics"), (5) Measurement of a policy that regulates shift-times, which is assumed to be randomly determined ("Policy"). We assume that the causal relationship between shift hours to the quality of care can be described with a linear regression model (In reality, they may be non-linear). 1. Suppose we regress "Quality of Care" on constant and "Shift Hours." Can we estimate the causal effect of changing shift hours on the quality of care? Why or why not? 2. Suppose we regress "Quality of Care" on constant, "Shift Hours," and "Hospital Characteristics." Can we estimate the causal effect of changing shift hours on the quality of care? Why or why not? 3. Suppose we regress "Quality of Care" on constant, "Shift Hours," "Tiredness," and "Hospital Characteristics." Can we estimate the causal effect of changing shift hours on the quality of care? Explain what the estimated coefficients on "Shift Hours" and "Tiredness" represent. 4. Suppose we regress "Quality of Care" on constant and "Policy." Can we estimate the causal effect of changing a shift-hours policy on the quality of care? Why or why not? 5. Suppose we do not observe "Hospital Characteristics" in the data set. Discuss how we can estimate the causal effect of changing the shift hours on the quality of care. [Hint: can we use the instrumental variable estimation?]
Answers
The effect estimation requires more than simple regressions of "Quality of Care" on "Shift Hours" (Part 1) or with "Hospital Characteristics" (Part 2). Including "Tiredness" (Part 3) or using variable (Part 5) is necessary.
To estimate the causal effect of changing shift hours on quality of care, several factors must be considered. Regression analysis with just a constant and "Shift Hours" (Part 1) fails to account for confounding variables, leading to biased estimates. Including "Hospital Characteristics" (Part 2) still overlooks omitted variable bias and endogeneity issues.
However, by adding "Tiredness" to the regression (Part 3), the direct and indirect effects of shift hours on quality of care can be estimated. The coefficient of "Shift Hours" represents the direct causal effect, while the coefficient of "Tiredness" captures the mediating effect. Regressing "Quality of Care" solely on "Policy" (Part 4) neglects confounders.
When "Hospital Characteristics" are unobserved, instrumental variable estimation (Part 5) can address endogeneity by identifying an instrumental variable unrelated to quality of care but affecting shift hours.
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How many square inches of cloth are cut from the square (n = 3.14) if it’s 38inches
Answers
The number of square inches of cloth cut from the square will be 1,017.36 square inches. Then the correct option is A.
What is the area of the circle?It is the close curve of an equidistant point drawn from the center. The radius of a circle is the distance between the center and the circumference.
Let r be the radius of the circle. Then the area of the circle will be
A = πr² square units
The radius is given as,
r = 36 / 2
r = 18 inches
The area of the circle is given as,
A = π x (18)²
A = 3.14 x 324
A = 1,017.36 square inches
The number of square inches of cloth cut from the square will be 1,017.36 square inches. Then the correct option is A.
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The complete question is given below.
A circle is cut from a square piece of cloth, as shown:
A square, one side labeled as 36 inches, has a circle inside it. The circle touches all the sides of the square. The portion of the square outside the circle is shaded.
How many square inches of cloth is cut from the square?
(π = 3.14)
1,017.36 in2
1,489.24 in2
1,182.96 in2
1,276.00 in2
What is -11 x -8?
I suck at math :(
Answers
i didnt see the - on the 11 and 8 my bad :(
Answer:
88?
Step-by-step explanation:
Evaluate x-2 for x=-3
Answers
Put in -3 in x
Answer:
-5
Step-by-step explanation:
Rewrite x - 2 as -3 - 2, which comes out to -5.
The map shows air travel distances from Minneapolis to four other cities. Use the triangle
inequality to find the range of possible distances between:
Minneapolis
1584
San Francisco
355
1056
1018
Chicago
Houston
New York
a.
b.
C.
d.
Chicago and Houston
San Francisco and Chicago
New York and San Francisco
Houston and New York
Answers
Answer:7
Step-by-step explanation:
solve the equation
2 x 1 1/2 = 46
Answers
Answer:
the Question is inappropriate
GOOD LUCK FOR THE FUTURE! :)
Given parallelogram L M N O below, LP = 81 If PN = -7x-3 solve for x
Answers
-7x=81+3
-7x/7=84/-7
Solution
X=-12
Answer:-12x
Step-by-step explanation:
just trust me on this
Please help, thank you :)
Answers
Answer:
If you gave out 4 cookie to \(a\) people you would have 5 cookies leftover, but if you gave out 12 cookie to \(a\) people you would need 11 more cookies.
What is the value of the expression below when
y=9 and z=3?
10y−7z
Answers
10y−7z
Plug in the numbers for y and z.
(10)(9)−(7)(3)
= 69
Answer:
69
Step-by-step explanation:
10y-7z
Plug in y and z
10(9)-7(3)
Solve using order of operations
90-21=69
OK CAN SOMEONE HELP ME OR NOT IM RUNNING OUT OF POINTS PLEASE HELP ME IM FRIC.KING BEGGING YOU
Answers
Answer:
1. m = 7
2. h = 1.5
3. b = -0.7
4. x = 20
5. a = 4.8
6. n = 30
7. y = 1.4
8. a = 28
9. b = -6
Step-by-step explanation:
Message me if you want me to explain each one.
Scientists estimate that the Pacific Plate, one of Earth's tectonic plates, has moved about 1,060 kilometers in the past 10.3 million years. About how far, in miles, has the Pacific Plate moved during this same time period?
(Use 1 mile =1.6 kilometers. )
165 398 663 1696
Answers
The Pacific Plate has moved approximately 663 miles during the past 10.3 million years. Your answer is 663.
To determine how far the Pacific Plate has moved in miles during the past 10.3 million years, you need to convert the distance from kilometers to miles using the given conversion factor (1 mile = 1.6 kilometers).
Step 1: Write down the given information:
Pacific Plate movement: 1,060 kilometers
Conversion factor: 1 mile = 1.6 kilometers
Step 2: Set up the conversion equation:
miles = (1,060 kilometers) ÷ (1.6 kilometers/mile)
Step 3: Calculate the distance in miles:
miles = 1,060 ÷ 1.6 ≈ 662.5
So, the Pacific Plate has moved approximately 663 miles during the past 10.3 million years. Your answer is 663.
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Guys will someone plzzzzzzz do my ALEKS for me i only need 8 topic honestly if you do 5 thats good enough (plz only answer if u finna do it) Username: Dwright4387 password: wcsmath96
:)
Answers
Answer:
Is it zoom or what?
Step-by-step explanation:
2. pvalue
3.critical value
4.test value
5.make a desision
Noise Levels in Hospitals In a hospital study, it was found that the standard deviation of the sound levels from 30 areas designated as "casualty doors" was 6.4 dBA and the standard deviation of 28 areas designated as operating theaters was 4.1 dBA. At a 0.10, can you substantiate the claim that there is a difference in the standard deviations? Use a, for the standard deviation of the sound levels from areas designated as "casualty doors." Part 1 of 5 (a) State the hypotheses and identify the claim. H_0: sigma_1^ = sigma_2^ _____
H_1: sigma_1^ ≠ sigma_2^ _____
This hypothesis test is a___test.
Answers
The hypotheses for the test are H₀: σ₁² = σ₂² and H₁: σ₁² ≠ σ₂². This is a two-tailed test to assess if there is a difference in the standard deviations of sound levels between the areas designated as "casualty doors" and operating theaters. The claim being investigated is whether or not there is a difference in the standard deviations.
The hypotheses for the test are:
H₀: σ₁² = σ₂² (There is no difference in the standard deviations of the sound levels between the areas designated as "casualty doors" and operating theaters.)
H₁: σ₁² ≠ σ₂² (There is a difference in the standard deviations of the sound levels between the areas designated as "casualty doors" and operating theaters.)
This hypothesis test is a two-tailed test because the alternative hypothesis is not specifying a direction of difference.
To substantiate the claim that there is a difference in the standard deviations, we will conduct a two-sample F-test at a significance level of 0.10, comparing the variances of the two groups.
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