Choose the system with one solution. (Hint: Try graphing each one on your calculator)
A. y = 7
1
y=-2
B. y = 5x + 2 C. y = 5x + 2 D. 2x + 4y = 6
y = 5x
y = -4x + 2
x + 2y = 3
Problem 9
Answers
Explanation i graphed it on demos
Related Questions
B) During the repair, the mechanics will need to
connect a cable between chairs B and J, and then
continue that cable to chair G. What is the angle
formed by the cable?
Answers
The angle that will be formed by the cable based on the information given will be 15°.
We have to find the angle formed by the cable.
We know that angles are geometric figures formed by two rays or lines that share a common endpoint, called the vertex of the angle. Angles are typically measured in degrees (°) or radians (rad) and are used to describe the amount of rotation or separation between the rays.
From the complete information, it's important to divide the total angle by 12. This will be:
= 360°/12 = 30°
Then, the relations that will be used will be:
= 1/2(60° - 30°)
= 1/2 × 30°
= 15°
Therefore, the angle that will be formed by the cable based on the information given will be 15°.
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Given question is incomplete, the complete question is below
During the repair, the mechanics will need to connect a cable between chairs B and J, and then continue that cable to chair G. What is the angle formed by the cable?
were the results of the simple and the multiple linear regression tests different? if yes, how so?
Answers
A simple linear regression model only includes one independent variable, while a multiple linear regression model includes two or more independent variables. The purpose of both models is to examine the relationship between the dependent variable and the independent variable(s) and to make predictions based on that relationship.
If the same dependent variable and independent variable(s) were used in both the simple and multiple linear regression tests, then it is possible that the results could be different. The multiple linear regression model may provide a more accurate prediction of the dependent variable since it takes into account multiple independent variables. Overall, without more information about the data and the specific models used, it is difficult to determine whether the results of the simple and multiple linear regression tests were different or not.
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What is the equation of the line that has a slope of 3 and goes through the point (-3,-5)?
O A. y=3x+4
OB. y= 3x - 14
O cy=3x-4
OD. y= 3x+12
Answers
Answer:
y = 3x + 4
Step-by-step explanation:
Given:
Coordinates
(-3 , -5)
Slope m = 3
Find;
Equation of slope
Computation:
Given, x1 = -3 and y1 = -5
Equation of slope = y - y1 = m(x - x1)
Equation of slope = y - (-5) = 3(x + 3)
Equation of slope = y + 5 = 3x + 9
Equation of slope = y = 3x + 9 - 5
Equation of slope = y = 3x + 4
y = 3x + 4
asap rervfsdewrfgtsfdas
Answers
Step-by-step explanation:
QR = ST
⅔x = 0.4
times 3
2x = 1.2
x = 1.2 /2
x = 0.6
0.6
Step-by-step explanation:QR = ST
⅔x = 0,4 × 3
2x = 1.2
x = 1.2 ÷ 2
x = 0.6
In a given year, residents of a country spent approximately $52 6 billion on their pets of this amount, $15.8 billion was for veterinarian bills. What percent of the total was spent on veterinary About % of the total was spent on veterinary care (Round to the nearest tenth as needed) Enter your answer in the answer box Type here to search O
Answers
Total money spent = $526 billion
Money spent on pets = $15.8
\(\begin{gathered} \text{Percentage of money spent on Pets} \\ =\text{ }\frac{15.8}{526}\text{ x 100\%} \\ =\text{ }\frac{15.8\text{ x 100\%}}{526} \\ =\text{ }\frac{1580}{526} \\ =\text{ 3.00\%} \\ =\text{ 3.0\%} \end{gathered}\)Okay this is very hard for me!! What is 546in in FEET.
Answers
Recall that in one foot, there are 12 inches. Let's use this conversion to convert 546 inches in feet.
Divide 546 inches by 12 inches.
\(546in\div\frac{12in}{ft}=45.5ft.\)Hence, 546 inches is equivalent to 45.5 feet.
PLEASE HELP IM SO CONFUSED I NEED IT IN 20 MUNUTES
Answers
Answer:
I believe the answer is 22.5
Step-by-step explanation:
i think so because how you solve this is you take 6 and divided it by 4 and the ratio is 4:6 so it's a 1.5 difference if u divide so you then take 15 and times it by that same 1.5 and get 22.5
sorry if the explanation didn't make sense
Bill's five-day schedule continually repeats. It calls for him to work 4 days and then take the 5th day off. What is the greatest number of days of that Bill can take in one month?
Answers
what is 4 1/2 as a percent
Answers
Answer:
450%
Step-by-step explanation:
4 1/2
1/2 = 50%
4=400%
400%+50%=450%
450%
Answer
450%
Step-by-step explanation: 4.5 × 100% = 450%
If the area of a square sandbox is 64 square meters, which is closest to the length of the diagonal of the sandbox? F 8 m G 9 m H 10 m J 11 m
Answers
Answer:
Step-by-step explanation:
A=s^2=64
s=8m
d^2=x^2+y^2, since it is a square x=y=8 then
d^2=2x^2
d^2=2(8^2)
d^2=128
d=11.3
So diagonal is approximately 11m
An appropriate metric unit to measure the distance from tagaytay city to Manila would be a. millimeter b. Centimeter c.meter d.kilometer
Answers
Answer:
Meter is the answer as per the question
PLEASE HELP URGENT!!!!!!!!!!!!
Answers
Answer:
B) 155 sq. cm.
Step-by-step explanation:
225 - 70 = 155 sq. cm.
Answer:
i believe its B.
hope this helps.
its a benchmark, so do your best :)!
this is all my points
Mr. Torrey draws and labels a figure, as shown below. He asks a group of students to each
write an expression that is equivalent to the perimeter of the figure in terms of the given
side lengths.
The students’ expressions are shown below.
Brian: 8(2r + s)
Marissa: 2(4r) + 2(4s)
Clara: 2(5r + 3r) + 4(2s)
Alex: 24 × r × s
Part A
Which expressions are equivalent to the perimeter of the figure? List all of the correct
expressions. Show how you know the correct expressions are equivalent to each other.
Part B
Hanif says that 2(4s) + 4(3r) is also equivalent to the perimeter of the figure.
Is Hanif correct? Justify your answer by substituting values for r and s.
Answers
Step-by-step explanation:
your answer would be 685 that's your answer
Answer:
dont mind me im just trying get points, since this question already got answered. :)
Step-by-step explanation:
Select all solutions to the solution to the following quadratic.
(x - 2)2 = 25
Answers
Answer:
x = 7, x = -3
Step-by-step explanation:
(x - 2)^2 = 25
Take the square root of each side
sqrt((x - 2)^2) =±sqrt( 25)
x-2 = ±5
Add 2 to each side
x-2+2 = 2±5
x = 2±5
x = 2+5, x=2-5
x = 7, x = -3
Name and describe an example of a decision problem known to be in NP-Complete. [2] 2. State what two criteria must be met for it to be in NP-Complete. [2] 3. Outline a solution to the corresponding optimization problem. [4]
Answers
Various heuristics and approximation algorithms are used to find near-optimal solutions efficiently in practice.
One example of a decision problem known to be NP-Complete is the "Traveling Salesman Problem" (TSP).
The Traveling Salesman Problem (TSP):
The TSP is a classic problem in computer science and operations research. It involves a salesman who needs to visit a set of cities, each exactly once, and return to the starting city while minimizing the total distance traveled.
Criteria for NP-Completeness:
To be classified as NP-Complete, a decision problem must meet the following two criteria:
a. It must belong to the class of problems known as NP (nondeterministic polynomial time), meaning that a solution can be verified in polynomial time.
b. It must be at least as hard as any other problem in the class NP. In other words, if a polynomial-time algorithm is found for one NP-Complete problem, it would imply polynomial-time solutions for all other NP problems.
Solution to the Optimization Problem:
The corresponding optimization problem for the TSP is to find the shortest possible route that visits all cities exactly once and returns to the starting city. The outline of a solution to this problem is as follows:
a. Enumerate all possible permutations of the cities.
b. For each permutation, calculate the total distance traveled along the route.
c. Keep track of the permutation with the minimum total distance.
d. Output the permutation with the minimum distance as the optimal solution.
However, it's important to note that the TSP is an NP-Complete problem, which means that finding an optimal solution for large problem instances becomes computationally infeasible.
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a chili recipe calls for ground beef, beans, green pepper, onion, chili powder, crushed tomatoes, salt, and pepper. you have lost the directions about the order in which to add the ingredients, so you decide to add them in a random order. what is the probability that the first ingredient you add is either ground beef or onion?
Answers
The probability of adding either ground beef or onion as the first ingredient 0.25 or 25%.
If there are a total of 8 ingredients and 2 of them are either ground beef or onion, then the probability would be:
Probability = (Number of desired outcomes) / (Total number of possible outcomes)
= 2 / 8
= 1 / 4
= 0.25
So, the probability of adding either ground beef or onion as the first ingredient is 0.25 or 25%.
In this case, we have a total of 8 ingredients, out of which 2 are either ground beef or onion. When selecting the first ingredient, there are 8 possible outcomes. Since we want to calculate the probability of adding either ground beef or onion as the first ingredient, we count the number of desired outcomes, which is 2 (either ground beef or onion). Dividing the number of desired outcomes by the total number of possible outcomes gives us the probability.
The probability of adding either ground beef or onion as the first ingredient is 0.25 or 25%. This means that there is a 25% chance that either ground beef or onion will be the first ingredient added, assuming the ingredients are added randomly without any specific order.
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need helppppp!!!! I'll brainlist quickkkk
Answers
Answer:
7a is 24
bis 18
c is -15
Step-by-step explanation:
7a. 2(3)+3(6)
6+18=
24
7b. 6(6)-(3)(6)
36-18=
18
7c. 3(3)-4(6)
9-24=
-15
Warm-Up
o
Which are solutions of the equation (x + 5)(x - 3) = 0? Check all that apply.
O x= -15
O x= -5
O x= -3
O x= 2.
O x= 3
O x = 5
Answers
Explanation:
x = -5
(-5 + 5)(-5 - 3) = 0
(0)(-8) = 0
0 = 0 TRUE
x = 3
(3 + 5)(3 - 3) = 0
(8)(0) = 0
0 = 0 TRUE
(Also, could I have brainliest please?)
Can you hellllp me pleaaaseeee
Answers
Answer:
Total interest = A - P = $2,223.00
Total amount = $10,023.00
Equation:
A = P(1 + rt)
Calculation:
First, converting R percent to r a decimal
r = R/100 = 9.5%/100 = 0.095 per year.
Solving our equation:
A = 7800(1 + (0.095 × 3)) = 10023
A = $10,023.00
The total amount accrued, principal plus interest, from simple interest on a principal of $7,800.00 at a rate of 9.5% per year for 3 years is $10,023.00.
Find a functiony x( )whose second derivative is y x x ( ) 12 2 , given f x x ( ) 5 is tangent to y x x ( ) at 1.
Answers
The tangent of y(x) at x = 1 is y'(1) = 4 + C₁, and the value of f(1) is 5, we can solve for C₁ to get C₁ = 1. Therefore, the function y(x) = x⁴ / 4 + x + C₂, where C₂ is another constant.
The given equation is f (x) = 5, and it is the tangent of the function y = x³ / 3 at x = 1.To get y = x (x² / 2 + C), we integrate the second derivative of y with respect to x.∫(d²y/dx²)dx = ∫(12x²)dx => y = 4x³ + C₁ Solve for C₁ by applying the point-slope equation at the point x = 1:f(1)
= 5
= y(1)
= 4(1)³ + C₁
=> C₁ = 1Therefore, the equation of y is: y = 4x³ + 1.For a more in-depth and better explanation, here are 150 words: A second derivative represents the rate of change of the first derivative with respect to x.
Therefore, if we have a second derivative of y with respect to x, we can integrate it twice to get a function of y with respect to x. Given y''(x) = 12x², we can integrate it once to obtain y'(x) = 4x³ + C₁, where C₁ is a constant. We integrate y'(x) once again to get y(x) = x⁴ / 4 + C₁x + C₂, where C₂ is another constant. Now, to find C₁ and C₂, we need to use the fact that the function f(x) = 5 is tangent to y(x) at x = 1.
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The tangent of y(x) at x = 1 is y'(1) = 4 + C₁, and the value of f(1) is 5, we can solve for C₁ to get C₁ = 1. Therefore, the function y(x) = x⁴ / 4 + x + C₂, where C₂ is another constant.
The given equation is f (x) = 5, and it is the tangent of the function
y = x³ / 3 at x = 1.
To get y = x (x² / 2 + C),
we integrate the second derivative of y with respect to x.
∫(d²y/dx²)dx = ∫(12x²)dx
=> y = 4x³ + C₁
Solve for C₁ by applying the point-slope equation at the point
x = 1:f(1)
= 5
= y(1)
= 4(1)³ + C₁
=> C₁ = 1Therefore, the equation of y is: y = 4x³ + 1
.For a more in-depth and better explanation, here are 150 words: A second derivative represents the rate of change of the first derivative with respect to x.
Therefore, if we have a second derivative of y with respect to x, we can integrate it twice to get a function of y with respect to x.
Given y''(x) = 12x²,
we can integrate it once to obtain
y'(x) = 4x³ + C₁, where C₁ is a constant.
We integrate y'(x) once again to get
y(x) = x⁴ / 4 + C₁x + C₂, where C₂ is another constant.
Now, to find C₁ and C₂, we need to use the fact that the function
f(x) = 5 is tangent to y(x) at x = 1.
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2. Find three consecutive even integers such that the sum of the product of the first two and
the product of the last two is 648
Answers
Answer:
16,18 and 20Step-by-step explanation:
Let n= The third number (n-2)= second number (n-4)= first numberTherefore,
The sum of the product of the first two and that of the product of the last two will be in the form;n(n-2)+(n-2)(n-4)=648n²-2n+n²-2n-4n+8=6482n²-8n+8=6482n²-8n-648+8=02n²-8n-640=0Dividing through by 2n²-4n-320=0 n²-20n+16n-320=0(n-20)(n+16)=0n=20 , n=-16NOTE: n can't be equal to a negative number
hence n=20
third number n=20second number (20-2)18first number (n-4)(20-4)=16Write an equation using point-slope for
(-2, -3), (-1,6)
Answers
Step-by-step explanation:
please mark me as brainlest
Michael leaves home and drives 17 miles west to work. After work, he travels 9 miles to a friend's
house. If the bearing from work to the friend's house is S 24° E, find the distance between the
friend's house and home.
Answers
The distance between friend's house and home is 14.263 miles.
What is distance?
The distance between two points is the length of a straight line segment that links them. The distance of a point from a line is the length of the shortest line segment from the point to the line.
What is tan?
the tangent of an angle is the ratio of the length of the opposite side to the length of the adjacent side.
Given,
The distance he covered to west (base) = 17 miles
angle = 24°
tan 24°= perpendicular/base
tan 24° = perpendicular/17
p = 0.836/17
=14.263 miles.
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Tekan-Tekan Sdn. Bhd. has order for 200 Model AS-120 calculator for delivery on day 200. The calculator consists of three parts. Components 2 and 3 form subassembly 1 . Sub-assembly 1 and component 4 form the final assembly. Following are the work centers and times of each operation. Table Q3(a) shows routine file of the operation. Assuming: - Only one machine is assigned to each operation - The factory works on 8-hour shift, 5 days a week - All parts move in one lot of 200. (a) Illustrate the backward schedule based on the information given above. (12 marks) (b) Identify when component 3 must be started to meet the delivery date. (2 marks)
Answers
Component 3 must be started on day 197 to meet the delivery date of day 200.
To illustrate the backward schedule, we need to start from the delivery date (day 200) and work our way backward, taking into account the lead times and dependencies of each operation.
(a) Backward schedule:
Operation | Work Center | Time (hours) | Start Day
--------------------------------------------------------
Final Assembly | Work Center 1 | 1 | 200
Sub-assembly 1 | Work Center 2 | 2 | 199
Component 4 | Work Center 3 | 3 | 197
Component 2 | Work Center 4 | 4 | 196
Component 3 | Work Center 5 | 3 | ????
(b) To identify when component 3 must be started to meet the delivery date, we need to consider its dependencies and lead times.
From the backward schedule, we see that component 3 is required for sub-assembly 1, which is scheduled to start on day 199. The time required for sub-assembly 1 is 2 hours, which means it should be completed by the end of day 199.
Since component 3 is needed for sub-assembly 1, we can conclude that component 3 must be started at least 2 hours before the start of sub-assembly 1. Therefore, component 3 should be started on day 199 - 2 = 197 to ensure it is completed and ready for sub-assembly 1.
Hence, component 3 must be started on day 197 to meet the delivery date of day 200.
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2. Some values of the linear function f are shown in the table below. What is the value
of f(3)?
A. 9
B. 8
C. 6
D. 7
Answers
Answer: The correct Answer is D
Step-by-step explanation: A linear function has a constant rate of change, and any two rows of the shown table can be used to calculate this rate. From the first row to the second, the value of x is increased by 2 and the value of f(x) is increased by 6 = 4 − (−2). So the values of f(x) increase by 3 for every increase by 1 in the value of x. Since f(2) = 4, it follows that f(2 + 1) = 4 + 3 = 7. Therefore, f(3) = 7.
Hope it helped!
four friends went to the each person bought a movie ticket and the total the four friends spent on the tickets was $52 Which equation can be used to find the cost of each ticket
Answers
The total amount of money spent/ amount of friends
Step-by-step explanation:
52/4
Answer:
4x = 52
Step-by-step explanation:
Let's say the cost of the ticket is represented by the variable x.
If 4 friends each went to the movies, and the tickets cost $52, that means
x + x + x + x = 52
Simplifying this, we get
4x = 52
If you want to solve for the cost of each ticket, divide both sides by 4.
After doing this, we get
x = $13
I hope this helps!
the first stack has 3 boxes, the second has 2 boxes, and the third has one box. in how many ways can he stack the six boxes in this way?
Answers
Using Permutation formula,
Total 720 ways are possible to stack the six boxes in order .
We have given that,
First stack contains number of boxes = 3
Second stack contains number of boxes = 2
Third stack contains number of boxes = 1
Total number of boxes = 6
Number of ways to stack 1 box = ⁶P₁ = 6!/5!
= 6 ways
Number of ways to stack 2 boxes = ⁵P₂= 5!/(5-2)!
= 5!/3! = 20 ways
Number of ways to stack 3 boxes = ⁴P₃= 4!/1!
= 4 ways
Total ways to stack 6 boxes = ⁶P₁ ×⁵P₂×⁴P₃
= 20×6× 4 = 720 ways
Hence, we can stack the 6 boxes in 720 ways .
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Consider an argument in which the authors use statistics about population and rates of homelessness to help prove their point that the increasing population of a city has contributed to rising homelessness. What kinds of persuasive appeals are these authors using
Answers
The authors who use statistics about population and rates of homelessness to help prove their point that the increasing population of a city has contributed to rising homelessness are using logos (logical appeal) as a persuasive appeal.
What is logos? Logos is an appeal to reason that is based on logic or reason. A claim, evidence, and a conclusion are all needed in a logical argument. Logos is a logical appeal that helps to persuade a reader or listener using facts, statistics, and reasoning. It is also a persuasive appeal that helps a speaker or writer to convince their audience of the truth or validity of their argument.
The logos appeal is the most effective tool to use when the audience is educated and seeks logical reasons for believing or doing something. In the given scenario, the authors used the statistical data to back their claims, which is a method of logical persuasion or appeal. This is because the information they present is based on evidence and data, which makes it more persuasive to their readers.
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pls help will give brainliest
Answers
answer: area=b18ft×h13ft
Step-by-step explanation:
area=base×height
Which of the following values of u is the correct substitution to use when evaluating the integral ∫x 3
e (2x 4
−2)
dx ? Select one: a. x 3
b. x 3
e (2x 4
−2)
c. (2x 4
−2) d. x 3
e 2x 4
Answers
The correct substitution to use when evaluating the integral is c. (\(2x^4 -\) 2).
To evaluate the integral ∫\(x^3 e^(2x^4 - 2) dx,\) we need to make a substitution to simplify the integrand. Let's consider the given options:
a. \(x^3\)
b. \(x^3 e^(2x^4 - 2)\)
c. \((2x^4 - 2)\)
d.\(x^3 e^(2x^4)\)
To make a correct substitution, we want to choose a value of u that simplifies the integrand and makes it easier to integrate. The most suitable choice would be option c. (2x^4 - 2) as the substitution.
Let's substitute u = \(2x^4\) - 2:
Differentiating both sides with respect to x:
du/dx = d/dx (\(2x^4 - 2)\)
du/dx = \(8x^3\)
Rearranging the equation, we get:
dx = du / (\(8x^3\))
Now we substitute the expression for dx and u into the integral:
∫\(x^3 e^(2x^4 - 2) dx\)
= ∫\(x^3 e^u (du / (8x^3))\)
= (1/8) ∫\(e^u du\)
The integral ∫\(e^u\) du is a simple integral and can be evaluated as e^u + C, where C is the constant of integration.
Therefore, the correct substitution to use when evaluating the integral is c. (\(2x^4 - 2\)).
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