The system's total dependability is 0.8813.
The reliability of the individual components determines the overall reliability of multi-component systems.
R = (0.98) (0.96) (0.94)
= 0.8813
The likelihood that a system operates well for a given period of time is known as reliability. When performing this right action:
No maintenance or repairs are necessary. The system correctly complies with the established performance requirements.
The dependability decreases when more time is taken into account for reliability calculations since it obeys the exponential failure rule.
In other words, a system's reliability will initially be high and steadily decline to its lowest level over time.
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The value of the overall reliability of the system is 0.8813.
The possibility that a system will work successfully over a certain time period is referred to as reliability. No repair is necessary or done during this right procedure. The system adheres to the performance standards as specified.
The overall reliability of multi-component systems is determined by the reliability of the individual components.
R = (0.98) (0.96) (0.94)= 0.8813
The possibility that a system will perform well over a particular length of time is referred to as dependability. There is no need for maintenance or repairs while doing this appropriate step. The system satisfies the defined performance criteria.
Because it follows the exponential failure rule, dependability falls as more time is factored into reliability assessments.
In other words, the reliability of a system will begin high and gradually drop to its lowest level over time.
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Determine the solutions of the equation. What solution makes sense for the situation?
The dimensions of the rectangle are 8 inches as width and 13 inches as length.
How to calculate the equation?An equation simply has to do with the statement that illustrates the variables given. In this case, it is vital to note that two or more components are considered in order to be able to describe the scenario.
The equation is given as:
x² + 5x - 104.
x² + 13x - 8x - 104
x(x + 13) - 8 (x + 13).
x - 8 = 0
x = 0 + 8
Width = 8
Length = x + 5
= 8 + 5.
= 13
The width is 8 inches and length is 13 inches.
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Determine the solutions of the equation. What solution
makes sense for the situation?
A rectangle has a length that is 5 inches greater than its
width, and its area is 104 square inches. The equation (x
+5)x = 104 represents the situation, where x represents
the width of the rectangle.
(x + 5)x = 104
x2 + 5x - 104 = 0
What are the dimensions of the rectangle?
Whay is the y intercept of these two points: (-1,-5) and (6,0)?
The y-intercept of a line is the point at which the line crosses the y-axis. This means that the x-coordinate of the point is 0.
To find the equation of a line passing through two points, we use the slope-intercept form of the equation of a line: y = mx + b, where m is the slope of the line and b is the y-intercept.
To find the y-intercept of a line passing through two points, we can use the slope-intercept form of the equation of a line and the coordinates of the two points:
(y1, y2) = m(x1, x2) + b
m = (y2-y1)/(x2-x1)
In this case, the two points are (-1,-5) and (6,0)
m = (0-(-5))/(6-(-1)) = 5/7
We can substitute the slope in the slope-intercept form of the equation of a line:
y = mx + b
so we can substitute point (-1,-5) in the equation and solve for b
-5 = (5/7)*(-1) + b
b= -5 + (5/7) = -5 + 0.7142857142857143
So, the y-intercept of the line passing through the two points (-1,-5) and (6,0) is -4.2857142857142865
Each of 36 students at a school play bought either a cup of orange juice or a sandwich. A cup of orange juice costs $1 and a sandwich costs $3. The total amount collected was $76. How many students bought orange juice, and how many bought a sandwich?
Let x represent the number of students who bought a cup of orange juice and y represents the number of students who bought a sandwich. Then the problem can be represented by this system of equations:
x + 3y = 76
x + y = 36
Answer the questions to solve the problem.
1. Explain what you should do with the two equations to eliminate one of the variables. (2 points)
4. Interpret the solution and check the values in the system. (3 points)
1). To eliminate variable x,
we subtract the equation 2 to equation 1
And 2). The solution of the system is x = 16 and y = 20.
What is the system of equations?One or many equations having the same number of unknowns that can be solved simultaneously called as simultaneous equation. And simultaneous equation is the system of equation.
Given:
Each of 36 students at a school play bought either a cup of orange juice or a sandwich.
A cup of orange juice costs $1 and a sandwich costs $3.
The total amount collected was $76.
Let x represent the number of students who bought a cup of orange juice and y represents the number of students who bought a sandwich.
Then the problem can be represented by this system of equations:
x + 3y = 76 {equation 1}
x + y = 36 {equation 2}
1). To eliminate variable x,
we subtract the equation 2 to equation 1,
2y = 40
y = 20.
And x = 16.
2). The solution of the system is x = 16 and y = 20.
To check the solution, substituting the values to the equation 2,
16 + 20 = 36
36 = 36
Therefore, all the required values are given above.
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a population is a. the collection of all items of interest in a particular study. b. always the same size as the sample. c. the selection of a random sample. d. the same as a sample.'
A population is the entire group of items of interest in a particular study, and it is not necessarily the same size as the sample. It is not the same as a sample, which is a subset of the population chosen for the study.
A population is the complete set of items of interest in a study. It could be people, animals, plants, objects, or anything else being studied. A population can be large or small, and it is not always the same size as the sample. A sample is a subset of the population that is chosen to represent the entire population. It is important to choose a sample that accurately reflects the population. Sampling techniques, such as random sampling, are used to ensure that the sample is representative of the population. Once the sample is chosen, data is collected from the sample to infer information about the population. This data can then be used to draw conclusions about the population as a whole.
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what is the surface area formula for half cylinder
Step-by-step explanation:
the surface area of a half-cylinder is, surprise, surprise, half of the surface area of a whole cylinder ...
the surface area of a cylinder is
A=2×pi×r×h + 2×pi×r²
r being the radius, h being the height of the cylinder.
the formula simply adds
the sidewall area (which is a rectangle of
circle circumference × height)
+
the top and base circle areas
half of this area calculation for a half-cylinder is
A/2 = pi×r×h + pi×r²
Elmhurst School organized an ice cream social for the incoming sixth graders. At the social, 7 students chose vanilla ice cream for every 5 that chose chocolate ice cream.
Pick the diagram that models the ratio in the story.
If 84 students chose vanilla ice cream, how many students chose chocolate ice cream?
students
60 students chose chocolate ice cream If 84 students chose vanilla ice cream.
What is ratio?The ratio can be defined as the number that can be used to represent one quantity as a percentage of another. Only when the two numbers in a ratio have the same unit can they be compared. Ratios are used to compare two objects.
Given, Elmhurst School organized an ice cream social for the incoming sixth graders. At the social, 7 students chose vanilla ice cream for every 5 that chose chocolate ice cream.
Since,
The ratio of students who choose vanilla ice cream to chocolate ice cream is: 7/5
Thus,
for every students choose chocolate ice cream = 5/7 student who chooses vanilla ice cream
If 84 students chose vanilla ice cream
Thus, students choose chocolate ice cream = 5/7 * 84
students choose chocolate ice cream = 12* 5
students choose chocolate ice cream = 60
Therefore, If 84 students chose vanilla ice cream, 60 students chose chocolate ice cream.
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Which are solutions of the equation 4x2 – 7x = 3x + 24? Check all that apply
Answer:
Step-by-step explanation:
x=4
x=-3/2
hope this helps !! :)
1/5 x -2 = 4 help pls
Answer:6/5 or 1 1/5
Step-by-step explanation:
1. Add 2 on each side
2. Then divide 1/5 and 6
Answer:
X = 30
Step-by-step explanation:
Add 2 on both sides, cancelling the -2. Divide 1/5 by 6 (4+2) and you'll get 30
WXYZ is a parallelogram. The position vectors of W, X and Y are (2,1), (6,3) and (4,7) respectively. Determine in the form (x,y) the vectors, WX, XY, WZ, OZ
In the parallelogram, the coordinates form of the vectors WX, XY, WZ, OZ are (18,3), (24, 21), (2x, y) and (0,0).
The term coordinate in math is known as the set of values that represents the exact position on the coordinate plane
Here we know that WXYZ is a parallelogram and the position vectors of W, X and Y are (2,1), (6,3) and (4,7) respectively.
Then the value of the coordinate vectors are calculated as,
=> WX = (2,1) x (6,3) = (18, 3)
And the value of XY is calculated as,
=> XY = (6,3) x (4,7) = (24, 21)
And we know that the value of Z is (x, y), then the vector is calculated as,
=> WZ = (2,1) x (x, y) = (2x, y)
Finally the value of OZ is calculated as,
=> OZ =(0,0) x (x , y) = (0, 0)
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52 students are going on a skiing trip. 28 have skied before, 30 have snowboarded before while 12 have done neither. How many have done both sports before?use a Venn diagram.
Answer:
18
Step-by-step explanation:
see attached
Alex has an 80% chance of passing a test. Brad has a 60% chance of passing the test. Work out the probability that Alex and Brad both fail the test
If Alex has an 80% chance of passing a test and Brad has a 60% chance of passing the test ,then the probability that Alex and Broad both fail the test is 0.8 or 8% .
The percent chance that Alex passes the test is = 80% = 0.8 ;
So , probability that Alex fails the test is = 1 - 0.8 = 0.2 ;
the percent chance that Brad passes the test is = 60% = 0.6 ;
So , the probability that Brad fails the test is - 1 - 0.6 = 0.4 ;
we have to find the probability that Alex and Broad both fail the test ,
the required probability of both failing can be found by using formula :
= (probability Alex fails the test) × (probability Brad fails the test)
= 0.2 × 0.4
= 0.8 .
Therefore , the probability that both fail the test is 0.8 or 8% .
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I need help with this ASAP! I would really appreciate it.
The correct answer is done by Curran,the equation is an example for Inequality Equations. X = -1\2
What are Inequality Equations?In Algebra, an inequality is a mathematical statement that uses the inequality symbol to illustrate the relationship between two expressions. An inequality symbol has non-equal expressions on both sides. It indicates that the phrase on the left should be bigger or smaller than the expression on the right, or vice versa. Literal inequalities are relationships between two algebraic expressions that are expressed using the inequality symbols.
Examples,
Symbol Name Symbol Example
Not equal ≠ x ≠ 3
Less than (<) x + 7 < √2
Greater than (>) 1 + 10x > 2 + 16x
Less than or equal to (≤) y ≤ 4
Greater than or equal to (≥) -3 - √3x ≥ 10
Let's solve your inequality step-by-step.
−4(x−6)<22
Step 1: Simplify both sides of the inequality.
−4x+24<22
Step 2: Subtract 24 from both sides.
−4x+24−24<22−24
−4x<−2
Step 3: Divide both sides by -4.
−4x/4<= -2/-4x
x-1/2
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9511961
4. Analyze and Persevere What is the
measurement of the longest line segment
in a right rectangular prism that is
4.8 inches long, 1.4 inches wide, and
8 inches tall? Round to the nearest tenth of
an inch.
9.43 inches is the measure of the longest segment
How to solve for the longest segment
We are aware that the diagonal connecting the two opposing corners at the top and bottom will be the longest segment.
We know how to find the diagonal of a right triangular prism using the following formula:
d = [tex]\sqrt{w^2 + l^2+h^2} \\\\[/tex]
where w = width = 1.4
l = length = 4.8
h = height = 8
We would put these values in the formula above
[tex]d = \sqrt{1.4^2 + 4.8^2+8^2} \\\\[/tex]
d = [tex]\sqrt{1.96+23.04+64}[/tex]
d = 9.43
The measure of the longest line segment is given as 9.43 inches
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Solve this equation in the
given domain: 0
*give answer in radians*
3 sin (2x-4)=2
There should be 4 answers.
look at attached photo
Answer: 2.294524311274043, 4.294524311274043, 6.294524311274043 and 8.294524311274043 radians.
Step-by-step explanation: We can start by isolating the sin function on one side of the equation:
sin (2x-4) = 2/3
Next, we can use the inverse sine function (sin^-1) to find the value of 2x-4:
2x-4 = sin^-1(2/3)
We know that the domain of the inverse sine function is [-1,1], so the value of 2/3 falls in that range. To find the value of x, we can add 4 to both sides and divide both sides by 2:
x = (sin^-1(2/3) + 4) / 2
The value of sin^-1(2/3) is approximately 0.5890486225480862 radians and that's the first solution in the range [0, pi], and we can add multiples of pi to get the other solutions.
x = (0.5890486225480862 + 4) / 2 = 2.294524311274043 radians (in the range [0, pi])
x = (0.5890486225480862 + 4 + pi) / 2 = 4.294524311274043 radians (in the range [pi, 2pi])
x = (0.5890486225480862 + 4 + 2pi) / 2 = 6.294524311274043 radians (in the range [2pi, 3pi])
x = (0.5890486225480862 + 4 + 3pi) / 2 = 8.294524311274043 radians (in the range [3pi, 4*pi])
So there are four solutions to this equation: 2.294524311274043, 4.294524311274043, 6.294524311274043 and 8.294524311274043 radians.
[tex]3\sin(2x-4)=2\implies \sin(2x-4)=\cfrac{2}{3}\implies 2x-4=\sin^{-1}\left( \cfrac{2}{3} \right) \\\\\\ 2x=\sin^{-1}\left( \cfrac{2}{3} \right)+4\implies x=\cfrac{\sin^{-1}\left( \frac{2}{3} \right)+4}{2} \\\\\\ x=\cfrac{\sin^{-1}\left( \frac{2}{3} \right)}{2}+2\implies x\approx\cfrac{0.73}{2}+2\implies \stackrel{II~Quadrant}{x\approx 2.365}\hspace{5em}\stackrel{III~Quadrant}{\stackrel{\frac{\pi -0.73}{2}+2}{x\approx 3.206}}[/tex]
In the Olympic National Park, there are currently 3310 squirrels,
and the population is increasing at an annual rate of 4%.
a. Write an exponential function to model the squirrel
population in terms of the number of years from now.
b. Explain what each value in the model represents.
Dredict the number of couvrole that will be in the region
2. A child's bank contains $6.30 in dimes and quarters. There are twice as
many dimes as quarters. How many of each kind of coin are in the bank?
The child has 14 quarters and 28 dimes if child's bank contains $6.30 in dimes and quarters.
What is Algebraic expression ?
Algebraic expression can be defined as the combination of variables and constants.
With coin problems you need to keep track of the count of the coins and the value.
d = number of dimes
10d = value of the dimes in cents
q = number of quarters
25q = value of the quarters in cents
10d + 25q = 630 cents
d = 2q
substitute
10(2q) + 25q = 630
20q + 25q = 630
45q = 630
q = 14
d = 2q
d = 2*14 = 28
Check the values to be sure this answer is right.
25(14) = 350 cents
10(28) = 280 cents
total = 630 cents
Therefore, The child has 14 quarters and 28 dimes.
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) in a dinner party 5 different appetizers and 6 different desserts are served. in how many different ways 3 appetizers and 2 desserts can be selected?
If in the party there are 5 different appetizers and 6 different desserts , then the number of different ways the 3 appetizers and 2 desserts can be selected is 150 ways .
the number of different appetizers in dinner party is = 5 ;
the number of different desserts in dinner party is = 6 ;
the number of ways of selecting 3 appetizers from 5 is = ⁵C₃ = 10 ;
number of ways of selecting 2 desserts from 6 is = ⁶C₂ = 15 ;
the number of ways of selecting 3 appetizers and 2 desserts is
= 15 × 10
= 150 ways .
Therefore , 3 appetizers and 2 desserts can be selected in 150 ways .
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Find AB… pls help thx
[tex]\textit{midsegment of a trapezoid}\\\\ m=\cfrac{a+b}{2} ~~ \begin{cases} a,b=\stackrel{parallel~sides}{bases~\hfill }\\[-0.5em] \hrulefill\\ a=11.5\\ m=18.7 \end{cases}\implies 18.7=\cfrac{11.5+b}{2} \\\\\\ 37.4=11.5+b\implies 25.9=b=AB[/tex]
Parker bought 4 times as many marbles as Molly. Cole bought 5 fewer marbles than Parker. If Molly bought p marbles, how many marbles did cole buy. Wouldn’t be 4p-5? If so, why? , and how do you solve it?
Answer:
Kinda Hard to explain hope this helps
Step-by-step explanation:
Lets say molly is 6 and parker bought 4 times as many then he bought 24 marbles.Then cole bought 5 fewer then parker so 24-5=19
the equation is 4(6)m=p(24) Cole p(24)-5=Cole
M=6
Need help solving asp
Answer:
89
Step-by-step explanation:
The angles are congruent since they are alternate interior angles of parallel lines cut by a transversal.
30x - 1 = 29x + 2
x = 3
30x - 1 = 30 × 3 - 1 = 89
Use the figure to complete the statement. If not similar choose not similar
Answer:
The answer is side side side (SSS)
Answer:
SSS Similarity
Step-by-step explanation:
121/9 = 8/6 = 16/12
Similar by SSS Similarity
ten slips of paper, numbered 1 through 10, are placed in a bag. if three slips are chosen at random from the bag without replacement and one of the slips chosen is numbered 7, what is the sum of numbers on the three chosen slips of paper? (1) the sum of two of the numbers chosen is 16. (2) the sum of two of the numbers chosen is 14.
The sum of the numbers on the three chosen slips of paper is either 21 or 23 in both the given cases.
We are given that one of the slips chosen is numbered 7, so the only possible sums of the remaining two slips are:
16 = 7 + 9
14 = 7 + 7
In the statement (1), the sum of two of the numbers chosen is 16, which means that the remaining two slips are 7 and 9. So the sum of the numbers on the three chosen slips of paper is 7 + 9 + 7 = 23.
In the statement (2), the sum of two of the numbers chosen is 14, which means that the remaining two slips are 7 and 7. So the sum of the numbers on the three chosen slips of paper is 7 + 7 + 7 = 21.
Hence, we get that in both cases, the sum of the numbers on the three chosen slips of paper is either 21 or 23.
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if 750 amounts to 885 in three years at a simple interest, find the rate of interest?
PLEASE ANSWER THE QUESTION ITS URGENT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
The Rate of Interest is 6%.
Step-by-step explanation:
S.I= Amount - Principle
S.I=885-750=135.
Rate= S.I*100/(P*T)
Rate=(135*100)/(750*3)
Rate=6%
Simple Interest:Simple interest is a quick and easy method of calculating the interest charge on a loan.
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Chef Malik decided to spend the grant money to package and deliver his meals to reach more community members. Each vegetarian meal now costs $2.25 to make and each meat meal now costs $2.75. Chef Malik wants to serve at least 400 meals and spend no more than $800.
A solution for the given system of linear inequalities is the shaded area below the solid line.
How to write and solve the system of inequalities graphically?In order to write a system of linear inequalities to describe this situation, we would assign variables to the cost of vegetarian meal and cost of meat meal, and then translate the word problem into algebraic equation as follows:
Let the variable x represent the cost of vegetarian meal.Let the variable y represent the cost of meat meal.Since each vegetarian meal cost $2.25 to make while each meat meal cost $2.75 and Chef Malik can spend no more than $800, a linear inequality which represents this situation is given by;
2.25x + 2.75y ≤ 800
Additionally, Chef Malik wants to serve at least 400 meals;
x + y ≥ 400
Next, we would use an online graphing calculator to graphically solve the system of linear inequalities.
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Complete Question:
Chef Malik decided to spend the grant money to package and deliver his meals to reach more community members. Each vegetarian meal now costs $2.25 to make and each meat meal now costs $2.75. Chef Malik wants to serve at least 400 meals and spend no more than $800.
Write and solve the system of inequalities graphically.
jose needs 20 1/3 feet of string for a project. he has lengths of string that are 9 1/2 feet, 3 1/4 feet and 4.5 feet long does jose have enough string for his project?
Answer: To check if Jose has enough string for his project, we need to add the lengths of the strings he has and compare it to the amount of string he needs for the project.
The length of the first string is 9 1/2 feet, the second string is 3 1/4 feet and the third string is 4.5 feet.
To add these lengths we need to convert them all to the same unit of measurement.
3 1/4 feet can be converted to 3.25 feet
So the total length of the strings Jose has is 9 1/2 + 3.25 + 4.5 = 17.25 feet
Jose needs 20 1/3 feet of string for his project, and he has 17.25 feet of string.
So he doesn't have enough string for his project.
Step-by-step explanation:
A fivey sequence is a sequence of positive integers whose terms add up to $5.$ For example, $2, 2, 1$ and $2, 1, 2$ are two different fivey sequences. How many fivey sequences are there?
The number of the arrangement for the five sequences will be 6.
What are permutation and combination?Combination and permutation are two different ways in mathematics to divide up a set of elements into subsets. The subset's components can be listed in any order when combined. The components of the subset are listed in a permutation in a particular order.
Given that a sequence is a sequence of positive integers whose terms add up to $5.$ For example, 2, 2, 1 and 2, 1, 2.
The number of the ways will be calculated as:-
3! = 3 x 2
3! = 6
Hence, the number of the different arrangements for the sum of 5 will be 6.
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Solve the Logarithmic Equation with Steps Shown:
64^2n-3= 4^2
The logarithmic equation gives the value of n; n = 11/ 6.
What is a logarithmic equation?This is a form of equation which requires the application of one of the laws of logarithm to solve or determine the value of a variable.
To solve the given logarithmic equation, we have the following steps to follow;
64^(2n - 3) = 4^2
4^3(2n - 3) = 4^2
divide the common terms on both sides to have;
3(2n - 3) = 2
6n - 9 = 2
6n = 2 + 9
6n = 11
n = 11/ 6
Therefore on solving the logarithmic equation, the value of n is 11/ 6.
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A researcher observes and records the height of a weight moving up and down on the end of a spring. At the beginning of the observation the weight was at its highest point. From its resting position, it takes 8 seconds for the weight to reach its highest position, fall to its lowest position, and return to its resting position. The difference between the lowest and the highest points is 20 in. Assume the resting position is at y = 0
Assume the resting position is at y=0, so the function is y = 10sin(π/4 x + π/4).
First one the first point will not be on the midline and will be at the maximum height.
In physics, amplitude refers to the greatest displacement or distance that a point on a vibrating body or wave can move relative to its equilibrium location.
amplitude = 10 = A and y = Asin(Bx - C) + D
Time = 8 seconds
B = 2π/time
B = 2π/8
B = π/4
The sine graph is pushed back by π/2 units since the weight is at its maximum position at x = 0; as a result, C = π/2, D = 0 (the midline is y = 0).
y = 10sin(π/4 x + π/4) is the function.
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The complete question is:
A researcher observes and records the height of a weight moving up and down on the end of a spring. At the beginning of the observation the weight was at its highest point. From its resting position, it takes 12 seconds for the weight to reach its highest position, fall to its lowest position, and return to its resting position. The difference between the lowest and the highest points is 10 in. Assume the resting position is at y = 0. Use the sine tool to graph the function. The first point must be on the midline and the second point must be a maximum or minimum value on the graph closest to the first point.
In the diagram below, (5, 2) is the midpoint of a segment with one endpoint (-1, 8). What is the other endpoint of the segment? Show your work or explain how you find your answer.
The line segment AB has point B(x, y) = (11, - 4) as its other endpoint.
How to determine the coordinates of the missing endpoint of a line segment
Herein we find the case of a line segment, of which the coordinates of its midpoint and one of its endpoints are known. Midpoint and endpoints are related by following expression:
0.5 · A(x, y) + 0.5 · B(x, y) = M(x, y)
Where:
A(x, y), B(x, y) - EndpointsM(x, y) - MidpointIf we know that A(x, y) = (- 1, 8) and M(x, y) = (5, 2), then the coordinates of the other midpoint are:
0.5 · (- 1, 8) + 0.5 · B(x, y) = (5, 2)
(- 1, 8) + B(x, y) = 2 · (5, 2)
(- 1, 8) + B(x, y) = (10, 4)
B(x, y) = (11, - 4)
The point B(x, y) = (11, - 4) is an endpoint of line segment AB.
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I need help with substitution the two parts are 4x+5y=48 and 7x-3y=-10. i need to find x and y
The solution to the simultaneous equation is x = 38 and y = 8
How to determine the valueFrom the information given, we have the equations;
4x+5y=487x-3y=-10From equation (1), make 'x' the subject of formula;
4x = 48 - 5y
Divide both sides by 4
x = 48 - 5y/4
Substitute the value x in equation (2)
7(48 - 5y/4) - 3y = -10
expand the bracket
336 - 35y/4 - 3y = -10
Find the lowest common multiple
336 - 35y - 12y/4 = -10
336 - 47y/4 = -10
cross multiply
336 - 47y = -40
collect like terms
-47y = 376
y = 8
Substitute the value into equation 3
x = 48 - 5(8)/4
x = 48 - 10
x = 38
Hence, the values are 38 and 8
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