Answer:
D
Step-by-step explanation:
Mark me brainliest please :):)
Find the vertex of the graph of the quadratic function. Determine whether the graph opens upward or downward, find the y-intercept, and sketch the graph. f(x) = -x- 8x-7
The answer is : (-4, 9)
The given function is:
f(x) = -x^2 - 8x - 7
To find the vertex of the parabola, we need to complete the square as follows:
f(x) = -(x^2 + 8x) - 7
= -(x^2 + 8x + 16) + 16 - 7
= -(x + 4)^2 + 9
Hence, the vertex is (-4, 9).
Since the coefficient of x^2 is negative, the parabola opens downward.
To find the y-intercept, we set x = 0:
f(0) = -0^2 - 8(0) - 7 = -7
Therefore, the y-intercept is (0, -7).
To sketch the graph, we plot the vertex (-4, 9) and the y-intercept (0, -7). Since the parabola opens downward, it will have a maximum value at the vertex. We can also plot a few other points by choosing values of x and calculating the corresponding values of y.
Therefore, the vertex is (-4, 9).
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which type of associations occurs when there is a relationship between two variables, but the relationship is caused by a third variable?
The type of association you are referring to is called a spurious correlation. In a spurious correlation, there is a relationship between two variables, but the relationship is actually caused by a third variable, also known as a confounding variable. This can lead to misleading conclusions if the third variable is not taken into account.
The type of association that occurs when there is a relationship between two variables, but the relationship is caused by a third variable is called a spurious association or a confounding variable. In this case, the relationship between the two variables is not a direct causal relationship, but is instead influenced by the third variable. It is important to identify and control for confounding variables in order to accurately interpret the relationship between the two variables of interest.
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A principal wishes to implement a decision that has to be a number between 0 and 1; that is, a decision d needs to be implemented where 0 sdS1. The difficulty for the principal is that she does not know what decision is appropriate given the current state of the economy, but she would like to implement a decision that exactly equals what is required given the state of the economy. In other words, if the economy is in state s (where 0 sS 1) the principal would like to implement a decision d s as the principal's utility Up (or loss from the maximum possible profit) is given by Up--s-d With such a utility function, maximising utility really means making the loss as small as possible. For simplicity, the two possible levels of s are 0.4 and 0.7, and each occurs with probability 0.5 There are two division managers A and B who each have their own biases. Manager A always wants a decision of 0.4 to be implemented, and incurs a disutility Ua that is increasing the further from 0.4 the decision d that is actually implement, specifically U-0.4-d.Similarly, Manager B always wants a decision of 0.7 to be implement, and incurs a disutility UB that is (linearly) increasing in the distance between 0.7 and the actually decision that is implemented - that is Ug--10.7 Each manager is completely informed, so that each of them knows exactly what the state of the economy s is (a) The principal can opt to centralise the decision but before making her decision given she does not know what the state of the economy is - she asks for recomm endation s from her two division mana gers. Centralisation means that the principal commits to implement a decision that is the average of the two recommendations she received from her managers. The recommendations are sent simultaneously and cannot be less than 0 or greater than 1 Assume that the state of the economy s = 0.7. What is the report (or recommendation) that Manager A will send if Manager B always truthfully reports s? (b) Again the principal is going to centralise the decision and will ask for a recommendation from both managers, as in the previous question. Now, however assume that both managers strategically make their recommendations. What are the recommendations rA and rB made by the Managers A and B, respectively, in a Nash equilibriunm
A. Manager A wants the decision to be 0.4, so they would recommend a decision of 0.4 to the principal.
B. The recommendations in the Nash equilibrium would be rA = 0.4 and rB = 0.7.
(a) If Manager B always truthfully reports the state of the economy (s = 0.7), Manager A would send a recommendation that minimizes their disutility Ua. In this case, Manager A wants the decision to be 0.4, so they would recommend a decision of 0.4 to the principal.
(b) In a Nash equilibrium, both managers strategically make their recommendations based on their own utility. Manager A wants to minimize their disutility Ua, which increases as the decision deviates from 0.4. Manager B wants to minimize their disutility UB, which increases as the decision deviates from 0.7.
To find the Nash equilibrium, we need to consider the recommendations made by both managers simultaneously. Let's denote the recommendations as rA (from Manager A) and rB (from Manager B). The principal's decision, d, would be the average of the recommendations, so d = (rA + rB) / 2.
Given that both managers strategically choose their recommendations, they will aim to minimize their disutility. In this case, Manager A would recommend a decision of 0.4 (as it minimizes Ua), and Manager B would recommend a decision of 0.7 (as it minimizes UB). Therefore, the recommendations in the Nash equilibrium would be rA = 0.4 and rB = 0.7.
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What is the greatest common factor between 18 and 30 and 54
The greatest common factor (GCF) of 18, 30, and 54 is 6.
The greatest number that divides two or more numbers without leaving a residue is known as the GCF.
The prime factorization approach is the most effective way to resolve this issue.
Using this technique, you will first determine the largest common factor amongst each number's prime factors.
The prime factorization of 18 is 2 x 3 x 3.
The prime factorization of 30 is 2 x 3 x 5. The prime factorization of 54 is 2 x 3 x 3 x 3.
The largest common factor amongst all of them is 6, which is the GCF.
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help if you can asap pls!!!!!
The relationship between DE and AC, considering the triangle midsegment theorem, is given as follows:
DE is half of AC.DE and AC are parallel.What is the triangle midsegment theorem?The triangle midsegment theorem states that the midsegment of the triangle divided the length of the midsegment of the triangle is half the length of the base of the triangle, and that the midsegment and the base are parallel.
The parameters for this problem are given as follows:
Midsegment of DE.Base of AC.Hence the correct statements are given as follows:
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For each value of w, determine whether it is a solution to -54 <7w-5.
Answer:
All in order:
YES
NO
NO
NO
Step-by-step explanation:
-54 ≤ 7(-7) - 5 YES because the sign says greater than or equal to (in the image)
-54 ≤ 7(5) - 5 NO
-54 ≤ 7(7) - 5 NO
-54 ≤ 7(-9) - 5 NO
funniest thing you'll see all day
Answer:
My dog getting smacked allot by my cat ( my cat was bullying my dog all day XD) 1 thanks = one less smack for the dog lol
Step-by-step explanation:
Me kat (cat) was mewing all day. Me go to market to buy his favourite food (fish).Me comes home. Me takes time to prepare fish. Me gives kat fish. He throw away fish and insult me with some more mews
Classify each angle as acute, obtuse, right, or straight.
Answer:
Step-by-step explanation:
Just got in online image to simple explanation. Now it is your turn to fill out your answer.
For 1) through 10) you got to approximately by looking at the image.
Answer: 1. right 2. obtuse 3. acute 4. acute 5. obtuse 6. straight 7. obtuse 8. acute 9. obtuse 10. acute 11. obtuse 12. acute 13. acute 14. obtuse 15. right 16. acute 17. obtuse 18. straight 19. acute 20. acute
Find the circumference of each circle. Round to the nearest tenth 4.5
which of the following is a factor of 12x2 − 4x − 1?
To find the factors of the expression 12x^2 - 4x - 1, we can use the factor theorem. The factor theorem states that if a polynomial expression evaluates to zero when a certain value is substituted for the variable, then that value is a factor of the polynomial.
To determine if a certain value is a factor of the expression, we can use synthetic division. Synthetic division involves dividing the polynomial expression by the possible factor to check if the remainder is zero. If the remainder is zero, then the value is a factor.
Let's start by checking if x = 1 is a factor of the expression:
1 | 12 - 4 - 1
| 12 8
|____________
12 8 7
Since the remainder is not zero, x = 1 is not a factor of the expression.
Next, let's check if x = -1 is a factor of the expression:
-1 | 12 - 4 - 1
| -12 16
|____________
12 -16 15
Again, the remainder is not zero, so x = -1 is not a factor of the expression.
Now, let's check if x = 2 is a factor of the expression:
2 | 12 - 4 - 1
| 24 40
|____________
12 20 39
Once again, the remainder is not zero, so x = 2 is not a factor of the expression.
Finally, let's check if x = -2 is a factor of the expression:
-2 | 12 - 4 - 1
| -24 56
|____________
12 -28 55
As we can see, the remainder is not zero, so x = -2 is not a factor of the expression.
After checking all the possible factors, we can conclude that none of the values tested (1, -1, 2, -2) are factors of the expression 12x^2 - 4x - 1.
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Whats the answer y’all
The expressions that will give you a difference of 5 are: -3 - (-8) and 1 - (-4).
What is the Difference of Two Expressions?The difference of two expressions is determined by subtracting one from the other.
Find the difference of each of the expressions given to determine which will give us 5.
-3 - (-8)
= -3 + 8
= 5
-2 - 3 = -5 [this is not the same as 5]
1 - (-4)
= 1 + 4
= 5
7 - (-2)
= 7 + 2
= 9
-3 - (-8) and 1 - (-4) will give us a difference of 5.
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annie measured a city park and made a scale drawing. the scale of the drawing was 1 millimeter : 4 meters. the soccer field is 28 millimeters long in the drawing. how long is the actual field?
Answer:
Step-by-step explanation:
34 millimeter
the spinner show. is spun 3 times. What is the probability that the spinner will stop on 4,3,1 in that order
Answer:
The probability of getting a 4 on the first spin is 1/3, the probability of getting a 3 on the second spin is 1/3, and the probability of getting a 1 on the third spin is 1/3. The probability of all three events occurring in order is the product of these individual probabilities, which gives 1/27 or approximately 0.037 or 3.7%
The expression (x − 4)2 is equivalent to x2 − 16 x2 + 16 x2 − 8x + 16 x2 + 8x + 16
Answer:
Given below
Step-by-step explanation:
The algebraic identity is (a-b)^2
= a^2 + b^2 - 2ab
So it'll be,
(x-4)^2
= x^2 + (4)^2 - (2)(x)(4)
= x^2 -8x + 16
or x^2 +16 -8x
The expression x² + 16 -8x is equivalent to the given expression (x-4)². The correct answer would be an option (C).
What is algebra?Algebra is a discipline of mathematics that deals with symbols and the rules that govern their use. These symbols, known as variables in elementary algebra, indicate quantities with no set values. Equations in mathematics express relationships between variables in the same way that sentences indicate relationships between specific words.
The expression is given in the question, as follows:
(x-4)²
As we know that the sum of square identity (a-b)² = a² + b² - 2ab
So x² + (4)² - (2)(x)(4)
x² -8x + 16 or
x² + 16 -8x
This expression is equivalent to the given expression.
Hence, the correct answer would be an option (C).
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explain the necessary condition that must be met in order to use a normal distribution to model the sampling distribution of p hat
The necessary condition to meet in order to use a normal distribution to model the sampling distribution of p^ is n×p and n×(1-p).
As per the question we have to determine the necessary condition that must be met in order to use a normal distribution to model the sampling distribution of p^.
In probability theory and statistics, the Normal Distribution, also called the Gaussian Distribution.
A large number of random variables are either nearly or exactly represented by the normal distribution.
The Normal Distribution is defined by the probability density function for a continuous random variable in a system.
Let us say, f(x) is the probability density function and X is the random variable.
Hence, it defines a function which is integrated between the range or interval (x to x + dx), giving the probability of random variable X, by considering the values between x and x+dx.
From the given information,
The required necessary condition is,
Both n×p and n×(1-p) to be at least 10.
Where, n is sample size and p is the probability of success.
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Nick wants to write a 1,260 page science-fiction novel.
How many pages will Nick need to write each month to finish his novel in 1 year?
1 year = 12 months
Pages to write in 12 months = 1260
Pages to write in 1 month = 1260/12
= 105 pages per month
susie paid $6 for 8 pounds of potatoes what is the cost per pond of potatoes
Answer: $.075 per pound
Step-by-step explanation:
You divide $6 (total cost) by 8 pounds to find the cost per pound
Given the following LP model, which is the correct standard form? Max(Z)=2X1+X2 Restrictions / Constrains 11×1+3×2≥33
8×1+5×2≤40
7×1+10×2≤70
7×1+10×2≤70 X1,X2≥0 Use this problem's information to answer questions 19 to 21. a. Max(Z)=3×1+2X2
11×1+3×2−51≤33
8×1+5×2+52≥40
7×1+10×2+53≥70
b. Max(Z)=3×1+2×2 11×1+3×2+51=33 8×1+5×2−52=40 7×1+10×2−53=70
c. Max(Z)=3×1+2×2 11×1+3×2−51=33 8×1+5×2+52=40 7×1+10×2+53=70
d. Max(Z)=3×1+2×2 11X1+3×2+$1=33 8×1+5×2+52=40 7×1+10×2+53=70
The correct standard form for the given LP model is option C: Max(Z) = 3x1 + 2x2, subject to the constraints 11x1 + 3x2 - 5 <= 33, 8x1 + 5x2 + 5 >= 40, and 7x1 + 10x2 + 5 >= 70, with x1, x2 >= 0. This option aligns with the original objective function and constraints of the LP model.
To convert the LP model into standard form, we need to rewrite the constraints with the variables on the left-hand side and constants on the right-hand side, with inequality signs (<= or >=) consistent throughout. Additionally, we introduce slack or surplus variables to transform any non-standard constraints.
In option C, the constraints are correctly transformed as 11x1 + 3x2 - 5 = 33, 8x1 + 5x2 + 5 >= 40, and 7x1 + 10x2 + 5 >= 70. These constraints are consistent with the original model. The objective function remains the same, Max(Z) = 3x1 + 2x2.
Option A has incorrect signs in the transformed constraints, and option B introduces surplus variables (+5) instead of slack variables (-5), resulting in an incorrect standard form. Option D includes a non-standard term with a dollar sign, which is inconsistent with linear programming conventions.
Therefore, option C is the correct standard form, adhering to the original LP model's objective function and constraints.
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Suggest regular languages L1 and L2 over {0,1} such that 1. L1⊈L2, 2. L2L1, and 3. (L1∪L2)∗=L1∗∪L2∗ (b) Prove or disprove whether condition 3 above holds for any regular languages, L1 and L2.
a). We have proved all the given conditions.
b). It is true that condition 3 holds for all regular languages L1 and L2.
(a) Regular languages L1 and L2 can be suggested as follows:
Let \(L_1={0^{(n+1)} | n\geq 0}\)
and
\(L_2={1^{(n+1)} | n\geq 0}\)
We have to prove three conditions:1. L1 ⊈ L2:
The given languages L1 and L2 both are regular but L1 does not contain any string that starts with 1.
Therefore, L1 and L2 are distinct.2. L2 L1:
The given languages L1 and L2 both are regular but L2 does not contain any string that starts with 0.
Therefore, L2 and L1 are distinct.3. (L1 ∪ L2)* = L1* ∪ L2*:
For proving this condition, we need to prove two things:
First, we need to prove that (L1 ∪ L2)* ⊆ L1* ∪ L2*.
It is clear that every string in L1* or L2* belongs to (L1 ∪ L2)*.
Thus, we have L1* ⊆ (L1 ∪ L2)* and L2* ⊆ (L1 ∪ L2)*.
Therefore, L1* ∪ L2* ⊆ (L1 ∪ L2)*.
Second, we need to prove that L1* ∪ L2* ⊆ (L1 ∪ L2)*.
Every string that belongs to L1* or L2* also belongs to (L1 ∪ L2)*.
Thus, we have L1* ∪ L2* ⊆ (L1 ∪ L2)*.
Therefore, (L1 ∪ L2)* = L1* ∪ L2*.
Therefore, we have proved all the given conditions.
(b)It is true that condition 3 holds for all regular languages L1 and L2.
This can be proved by using the fact that the union of regular languages is also a regular language and the Kleene star of a regular language is also a regular language.
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How many terms are in this expression?
s+3u+10=
If two dice are rolled one time, find the probability of getting a sum greater than 6 and less than 12.
a) 5/9
b) 1/9
c) 13/18
d) 5/36
If two dice are rolled one time, the probability of getting a sum greater than 6 and less than 12: 13/18. The correct option is a.
To find the probability of getting a sum greater than 6 and less than 12 when two dice are rolled, we need to determine the favorable outcomes and divide them by the total possible outcomes.
The total number of outcomes when two dice are rolled is 6 x 6 = 36 (since each die has 6 faces).
To find the favorable outcomes, we need to count the number of ways to get a sum greater than 6 and less than 12. The possible sums in this range are 7, 8, 9, 10, and 11.
For a sum of 7, there are 6 favorable outcomes: (1, 6), (2, 5), (3, 4), (4, 3), (5, 2), and (6, 1).
For a sum of 8, there are 5 favorable outcomes: (2, 6), (3, 5), (4, 4), (5, 3), and (6, 2).
For a sum of 9, there are 4 favorable outcomes: (3, 6), (4, 5), (5, 4), and (6, 3).
For a sum of 10, there are 3 favorable outcomes: (4, 6), (5, 5), and (6, 4).
For a sum of 11, there are 2 favorable outcomes: (5, 6) and (6, 5).
Adding up the favorable outcomes, we get 6 + 5 + 4 + 3 + 2 = 20.
Therefore, the probability of getting a sum greater than 6 and less than 12 is 20/36 = 5/9. The correct option is a.
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Consider the following LP problem with two constraints: 44X+43Y>=1892 and 23X+21Y=483. The objective function is Min 5X+38Y. What combination of X and Y will yield the optimum solution for this problem? a. 21,0 b. infeasible problem C. 13,8.7619 d. unbounded problem e. 0,23
Answer:
The combination of X and Y that will yield the optimum solution for this problem is C. 13,8.7619.
Consider the following LP problem with two constraints:
44X+43Y>=1892
23X+21Y=483.
The objective function is Min 5X+38Y.
First, convert the inequality into an equation.
44X + 43Y = 1892
Find the value of X when
Y = 0.44X + 43(0)
= 1892X = 1892/44X
= 43
Next, we will find the value of Y when
X = 0.44(0) + 43Y
= 1892Y
= 1892/43Y
= 44
Next, find the optimal solution by plotting the equation on the graph.
The equation is represented by a line.
The line passes through two points: (0, 44) and (43, 0).Plot the line and draw the feasible region that satisfies all of the constraints. We can then determine the optimal solution.
Now, the intersection of the two lines is (13, 8.7619).
Therefore, the combination of X and Y that will yield the optimum solution for this problem is C. 13,8.7619.
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write the sequence of natural numbers which leaves the remainder 3 on didvidng by 10
The sequence of natural numbers that leaves a remainder of 3 when divided by 10 is:
3, 13, 23, 33, 43, 53, 63, 73, 83, 93, 103, 113, ...
\(\huge{\mathfrak{\colorbox{black}{\textcolor{lime}{I\:hope\:this\:helps\:!\:\:}}}}\)
♥️ \(\large{\underline{\textcolor{red}{\mathcal{SUMIT\:\:ROY\:\:(:\:\:}}}}\)
Find the volume of the rectangular prism.
Answer:
Right rectangular prismmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm
Step-by-step explanation:
2x + y = 7
5x + y = 9
Solve the system of equations.
A.(2/3, 25/3)
B.2/3, 1773)
C.(2/3, 25/3)
Answer:
2/3,17/3
Step-by-step explanation:
y=7-2x
now,
5x+y=9
5x+(7-2x)=9
5x+7-2x=9
3x=2
x=2/3
again;
putting value of x in eqn i
y=7-2x
=7-2x2/3
=7-4/3
17/3
Identify the solution set of the inequality, using the given replacement set.
x < –4; {–10, –4.3, –4, –3.9, 2, 6.5}
{–10, –4.3, –4}
1.{–10, –4.3, –4}
2.{–4, –3.9, 2}
3.{–10, –4.3}
4.{–3.9, 2}
Step-by-step explanation:
es el número 4[-3.9,2] esta es la respuesta
an inverted pyramid is being filled with water at a constant rate of 55 cubic centimeters per second. the pyramid, at the top, has the shape of a square with sides of length 8 cm, and the height is 14 cm. find the rate at which the water level is rising when the water level is 6 cm.
The rate at which the water level is rising when the water level is 6 cm is approximately 2.67 cm/s. if an inverted pyramid is filled with water at a constant rate of 55 cubic centimeters per second, the top of pyramid is in square shape with length of 8 cm and height of 14 cm.
Let's call this rate "r".
Volume of pyramid = (1/3) * base area * height
Since the pyramid has a square base, the base area is given by
Base area = (side length)^2
Substituting the given values
Base area = (8 cm)^2 = 64 cm^2
Height = 14 cm
V = (1/3) * 64 cm^2 * 14 cm = 298.67 cm^3
We know that the water is being added to the pyramid at a constant rate of 55 cm^3/s. Therefore, the rate at which the volume is increasing is
dV/dt = 55 cm^3/s
We also know that the volume of water in the pyramid at any given time is given by
V_water = (1/3) * base area * h_water
where h_water is the height of the water at that time.
To find the rate at which the water level is rising (r), we need to find dh_water/dt. We can do this by taking the derivative of both sides of the equation for V_water with respect to time
dV_water/dt = (1/3) * base area * dh_water/dt
Substituting the known values
dV_water/dt = (1/3) * (8 cm)^2 * dh_water/dt
dV_water/dt = (64/3) cm^2 * dh_water/dt
dh_water/dt = 3 * dV_water/dt / 64
dh_water/dt = 3 * 55 cm^3/s / 64 = 2.67 cm/s
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A painter needs to measure the height from the ground to the base of a 2nd story window. He props his ladder against the base of the window. He finds the height from one rung of the ladder to the point on the ground below it, and the distance from that point to the base of the ladder. This is shown in the figure.
If XY = 8 inches, WY = 24 inches, and XZ = 48 inches, the height from the ground to the base of the window is inches.
The height from the ground to the base of the window is 16 inches.
What is the height from the ground to the base of the window is inches?The ladder and the wall of the window form a right angled triangle. A right angled triangle is a three-sided polygon. The square of the longest side of a right angled triangle is equal to the sum of the squares of the other two sides.
In order to determine the length from the ground to the window, the law of similar triangles would be used. The similar triangles are triangle WXY and triangle VXZ. It is expected that the length of the sides are proportional to each other.
XY / XZ = WY / VZ
(8 / 24) = WY / 48
WY = (8 X 48) / 24 = 16 inches
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What is a lifetime cap?
Answer: A limit on how much an ARM's interest rate can change over the
life of a mortgage
Step-by-step explanation: took the quiz.
4 cm
8 cm
use the Pythagorean Theorum
Step-by-step explanation:
if a triangle is in the form ∆ABC,
then, According to Pythagoras Theorem,
AB²+BC² = AC²
4²+8² = AC²
√80 = AC or 8.944 cm = AC
hope this helps.