how would i match these together
{5x + 2(x - 1) = 6(x + 1) +x}------------------------No solution
{5x + 2(x - 1) = 6(x - 1) - x}------------------------- x = -2
{5x + 2(x - 3) = 6(x - 1) - x}-------------------------x = 0
{5x + 2(x - 3) = 6(x - 1) + x}-------------------------All real numbers
What is linear equation?
A linear equation is an algebraic equation of the shape y= mx + b. regarding simplest a consistent and a first-order (linear) term, wherein m is the slope and b is the y-intercept.
Solution:
Simplifying First equation,
5x + 2x - 2 = 6x + 6 + x
⇒7x - 2 = 7x + 6
⇒ -2 = 6, which is not possible
Similarly second equation,
5x + 2x - 2 = 6x - 6 -x
⇒ 7x - 2 = 5x - 6
⇒ 2x = -4
⇒ x = -2
Similarly third equation,
5x + 2x - 6 = 6x - 6 - x
⇒7x - 6 = 5x -6
⇒ 2x = 0
⇒ x = 0
Similarly fourth equation,
5x + 2x - 6 = 6x - 6 + x
⇒ 7x - 6 = 7x - 6
⇒ 0 = 0
It means all real numbers are the solutions.
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PLEASE HELP ASAP 6TH GRADE MATH!!! EACH QUESTION WORTH 2 POINTS DO NOT STEAL POINTS {AWNSER WILL BE REPORTED AND REMOVED IF RULE IS BROKEN!!!} 3 questions total REMINDER- if answer is answered in 10-20 mins I will give an EXTRA 50 points!!!
Question 1
The average high temperatures in degrees for a city are listed.
58, 61, 71, 77, 91, 100, 105, 102, 95, 82, 66, 57
If a value of 110.5° is added to the data, how does the mean change and by how much?
The mean increases by 2.3°.
The mean increases by 2.7°.
The means stays at 80.4°.
The mean stays at 82.7°.
Question 2
The average high temperatures in degrees for a city are listed.
58, 61, 71, 77, 91, 100, 105, 102, 95, 82, 66, 57
If a value of 58° is changed to 101°, which of the following measures changes the most and what is the new value?
Median 86.5°
Mean 84°
Range 48°
IQR 32°
Question 3
The average high temperatures in degrees for a city are listed.
58, 61, 71, 77, 91, 100, 105, 102, 95, 82, 66, 57
If a value of 101° is added to the data, how does the mean change?
The mean decreases by 1.6°.
The mean increases by 1.6°.
The mean decreases by 8.4°.
The mean increases by 8.4°.
Answer:
Question 1The average high temperatures in degrees for a city are listed.
58, 61, 71, 77, 91, 100, 105, 102, 95, 82, 66, 57
If a value of 110.5° is added to the data, how does the mean change and by how much?
80.41 to 82.7
The mean increases by 2.3°.The mean increases by 2.7°.
The means stays at 80.4°.
The mean stays at 82.7°.
Question 2The average high temperatures in degrees for a city are listed.
58, 61, 71, 77, 91, 100, 105, 102, 95, 82, 66, 57
If a value of 58° is changed to 101°, which of the following measures changes the most and what is the new value?
Median 86.5°Mean 84°
Range 48°
IQR 32°
Question 3The average high temperatures in degrees for a city are listed.
58, 61, 71, 77, 91, 100, 105, 102, 95, 82, 66, 57
If a value of 101° is added to the data, how does the mean change?
80.42 to 82
The mean decreases by 1.6°.
The mean increases by 1.6°.The mean decreases by 8.4°.
The mean increases by 8.4°.
Step-by-step explanation:
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Answer:
11/20
Step-by-step explanation:
4/5 - 1/4
find greatets common denominator aka 20 cuz 5 and 4 can go into 20
multiply that many tiems it goes into 20 for the numerator
you now have 16/20 - 5/20
the answer is 11/20
What is the answer to this question?
A. Domain: All Real Numbers; Range: All Real Numbers
B. Domain: −10 ≤x≤10 Range: −4≤y≤8
classify the following random variable according to whether it is discrete or continuous. the number of goals scored in a hockey game
The number of goals scored in a hockey game is a discrete random variable.
A discrete random variable has a countable number of different possible values, such as 0,1,2,3,4, etc. Usually, but not always, discrete random variables are counted. If a random variable has a limited range of possible values, it is discrete.
The number of children in a household, the Friday night movie attendance, the number of patients at a doctor's office, and the number of faulty light bulbs in a box of ten are a few examples of discrete random variables. A discrete random variable's probability distribution is a table of the probabilities connected to each of its potential values.
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Convert 6.932 dekagrams into decigrams. Round to one decimal.
Answer:
693.2
Step-by-step explanation:
6.932 · 100
Move the point two times to the right
693.2
Nikola likes to play horseshoes, where players try to score a ringer by throwing a horseshoe so it lands around a post. A player gets 2 attempts each round. Let R represent the number of ringers that Nikola scores in a round. Here's the probability distribution of R along with summary statistics. R=# of ringers 0 1 2 P(R) 0.75 0.20 0.05 Mean: HR=0.3 Standard deviation: OR 0.56 Nikola gets 3 points for each ringer that he scores. Let X represent the number of points that Nikola gets from ringers in a round. What are the mean and standard deviation of X?
The mean and standard deviation of X are 0.9 and 1.68 points.
Since Nikola gets 3 points for each ringer which he scores, then total points he gets from ringers could be determined by multiplying the number of ringers by 3.
So, X = R * 3 = 3R
Where:
R = numbers of ringers
X = total points Nikola gets from ringers
Given:
Mean : μR = 0.3
Standard deviation : σR = 0.56
Thus, multiplying by 3 will effects the mean as follows:
μX = 3 (μR)
= 3 (0.3)
= 0.9
And, multiplying by 3 also will effects the standard deviation as follows:
σX = 3 (σR)
≈ 3 (0.56)
≈ 1.68
Hence, the mean of X is 0.9 and and the standard deviation of X is 1.68.
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What is the slope?????????
Answer:
AB - [tex]\frac{2}{1}[/tex]
BC - [tex]\frac{4}{2}[/tex]
AC - [tex]\frac{6}{3}[/tex]
Slope = 2
Step-by-step explanation:
For AB the rise (counting upwards) is 2 and the run (counting to the right) is 1. If you simplify it, it would be 2. The reason why it's not a negative is that the slope is going upwards not downwards.
Given: ray AC is parallel to ray DE, measure angle FED= measure angle GCA= 45°
Prove: ray FE is parallel to ray GC
We have proved that the ray FE is parallel to the ray GC.
What is meant by parallel lines?
In geometry, parallel lines are coplanar straight lines that do not intersect at any point. Parallel planes are planes in the same three-dimensional space that never meet. Parallel curves are curves that do not touch each other or intersect and keep a fixed minimum distance.
Angle DEF intersects at B
which results in angle DEF corresponding to the angle ACG.
As DEF = 45 so angle ACG = 45
So by the above discussion, we can say that the ray FE is parallel to the ray GC.
Hence, we have proved that the ray FE is parallel to the ray GC.
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A(5x - 2)°
(3x + 4)°
Answer: x = 11
Step-by-step explanation: set both angles equal to 90 bc a triangle is 180 minus the 90 degree angle
what is 32.7 + 21.63
Answer:
54.33
Step-by-step explanation:
Answer:
54.33
Step-by-step explanation:
Addition or a calculwtor can be used
If you tossed two coins simultaneously 400 times, would you expect the deviation to be greater or less than it was in tossing them 40 times? Explain.
Yes, the deviation is greater than it was in tossing them 40 times.
What is Standard Deviation?A standard deviation (or σ) is a measure of how widely distributed the data is in reference to the mean. A low standard deviation suggests that data is grouped around the mean, whereas a large standard deviation shows that data is more spread out.
Given:
n= 400 trials
Tossing 2 coins 400 times gives 800 trials
so, [tex]\sigma_1[/tex]² = np(1- p)
= 800 x 1/2 x 1/2
[tex]\sigma_1[/tex] = √200
[tex]\sigma_1[/tex] = 10√2
Now, n=40
and, [tex]\sigma_2[/tex]² = np(1- p)
= 80 x 1/2 x 1/2
[tex]\sigma_2[/tex] = √20
[tex]\sigma_2[/tex] = 2√5
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A 60kg student in a rowboat on a still lake decides to dive off the front of the boat. The student's horizontal acceleration is 2.0 m/s/s while in contact with the boat. What horizontal force does the student exert on the boat?
120 N toward the back of the boat
30 N toward the back of the boat
30 N toward the front of the boat
120 N toward the front of the boat
The horizontal force that the student exert on the boat is 120 N toward the front of the boat.
What is third law of Newton ?
As per the third law of Newton, the force exerted by the boat over the student is equal in magnitude to the force that the student exerted on the boat.
So, calculate the force on the student using the second law of Newton, Force = mass * acceleration.
Force on the student = 60 kg * 2.0 m/s^2 = 120 N.
=> horizontal force exerted by the student on the boat = 120 N
Answer: option d. 120 N. toward the back of the boat.
Of course it is toward the back because that is where the student jumped from..
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As part of a probability experiment for math class, Reid flipped a coin a hundred times. He
predicted it would land on heads 50 times, but it actually landed on heads 40 times. What is
the percent error for Reid's prediction?
►
If necessary, round your answer to the nearest tenth of a percent.
Answer:
25%
Step-by-step explanation:
we know that you have to do amount of error/ correct amount
so the amount of error is 10 and the correct amount is 40, so its 10/40.
10 divided by 40 is 0.25. They want the answer as a percent, so in order to turn 0.25 to a percent, you have to move the decimal 2 times over. It then turns into 25%
Feminist organizations like the "Rural Mental Disorder Women's Concern Group" smear China's human rights. They are either ignorant or liars. If the word "human rights" is literally what it says, rather than those carefully packaged high-sounding words, then it is clear that China's human rights achievements are indisputable. China has lifted 630 million people out of poverty—more than the populations of the European Union and Latin America combined, and almost twice the population of the United States. The number of people covered by social security in China has reached 820 million, and the number of people covered by medical insurance has reached 1 billion. China's contribution to world poverty reduction has reached 100%. Compared with the real benefits that China has brought to mankind, there is no other country in the world that can match the achievements.
While China has pulled hundreds of millions out of poverty, it has done so at the expense of the right to free speech and government.
Why is China accused as being anti-human rights?China is a Communist country ruled by the Communist Party in a one-party state.
As a result, there are few political liberties because everything must adhere to the party's criteria. This means that while China's economy has been flourishing for decades, lifting people out of poverty has come at the expense of their freedom.
This is why Tiananmen Square movements for democracy were crushed, and Hong Kong protesters are being suppressed.
China is giving its people economic rights by lifting them from poverty, but has taken their political rights away.
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C 12
D
ers are in each Tow?
27
Zach earns the same amount of money each week doing yard work. If he earns $36
at the end of 4 weeks, how much money does Zach earn each week
The amount of money earned by Zach each week will be equal to $9 per week.
What are arithmetic operations?The four basic operations of arithmetic can be used to add, subtract, multiply, or divide two or even more quantities.
They cover topics like the study of integers and the order of operations, which are relevant to all other areas of mathematics including algebra, data processing, and geometry.
As per the given data in the question,
Total amount earned by Zach = $36
The time taken to earn the amount = 4 weeks
Then, the amount earned each week will be.
= $36/4
= $9 per week
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The numerator of a fraction is 5 less than its denominator. If 1 is added to the numerator and to the denominator, the new fraction is [tex]\frac{2}{3\\}[/tex] Find the fraction.
The fraction in the question is 9 / 14
FractionsFractions are represented as a numerical value, which defines a part of a whole. A fraction can be a portion or section of any quantity out of a whole, where the whole can be any number, a specific value, or a thing.
To solve this problem, we have to write an algebraic equation and solve for the unknown.
Assuming x represents the unknown value
Original fraction = x - 5 / x
When 1 is added to both numerator and denominator;
x - 5 + 1 / x + 1 = 2/3
x - 4 / x + 1 = 2/3
Cross multiplying both sides
2(x + 1) = 3(x - 4)
2x + 2 = 3x - 12
Collect like terms and solve for x
2 + 12 = 3x - 2x
x = 14
The fraction is 14 - 5 / 14 = 9 /14
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Tammy and Luke take part in a game in which they earn the same number of points for each catch and lose the same number of points for each miss. Tammy makes 5 catches and misses 1, ending the game with 23 points. Luke earns 8 catches and has 5 misses. Luke ends the game with 30 points.
Write a system of equations that describes Tammy and Luke's outcomes. Use x to represent the number of points for a catch and y to represent the number of points for a miss.
The system of equation to describe Tammy and Luke's outcome is as follows:
5x + y = 23
8x + 5y = 30
How to use system of equation to represent the outcome?Tammy and Luke take part in a game in which they earn the same number of points for each catch and lose the same number of points for each miss.
let
x = number of points for a catch
y = the number of points for a miss.
Tammy makes 5 catches and misses 1, ending the game with 23 points.
Therefore,
5x + y = 23
Luke earns 8 catches and has 5 misses. Luke ends the game with 30 points. Therefore,
8x + 5y = 30
Hence, the combine equation to describe the outcome is as follows:
5x + y = 23
8x + 5y = 30
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We find a 95% confidence interval for the mean weight of apples in an orchard at a specific given time is between 147 grams to 151 grams. Which of the following is a correct interpretation of this interval?
(a) I am 95% confident that the confidence interval for mean weight of apples in the orchard will be between 147 grams to 151 grams
(b) I am 95% confident that the mean weight for all the apples in the orchard will be between 147 grams to 151 grams
(c) I am 95% confident that the mean weight of apples for this sample will be between 147 grams to 151 grams
(d) 1 am 95% confident that the weight of all the apples in the orchard is between 147 grams to 151 grams
The correct interpretation is (a) I am 95% confident that the confidence interval for mean weight of apples in the orchard will be between 147 grams to 151 grams
What Is a Confidence Interval?A confidence interval, refers to the probability that a population parameter will fall between a set of values for a certain proportion of times.
What is a 95% confidence interval?A 95% confidence interval is a range of values that you can be 95% certain contains the true mean of the population.
How to find the correct interpretation of this interval?Since the 95% confidence interval for the mean weight of apples in an orchard at a specific given time is between 147 grams to 151 grams.
This follows that from our definition of confidence interval and 95 % confidence interval, that there is a 95 % confidence that the mean weight of the apples in the orchard lies between 147 grams to 151 grams.
So, the correct interpretation is (a) I am 95% confident that the confidence interval for mean weight of apples in the orchard will be between 147 grams to 151 grams
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1. Suppose there
are 4 people and 9 different assignments. Each person should receive one
assignment. Assignments for different people should be different. How many ways
are there to do it?
The ways to assign for different people is 126 ways
How to determine the ways of selection?From the question, we have
Total number of questions, n = 9
Numbers to people, r = 4
The number of ways of selection could be drawn is calculated using the following combination formula
Total = ⁿCᵣ
Where
n = 9 and r = 4
Substitute the known values in the above equation
Total = 9C4
Apply the combination formula
ⁿCᵣ = n!/(n - r)!r!
So, we have
Total = 9!/5!4!
Evaluate
Total = 126
Hence, the number of ways is 126
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65. Which of the following could represent the side
lengths of a triangle? Check all that apply.
A. 6, 10, 14
B. 12, 15, 29
C. 8, 8, 11
D. 19, 24, 40
E. 9, 17, 26
Answer: The following that could represent the side lengths of a triangle are A, C, D.
Step-by-step explanation:
The sum of the first two numbers of the triangle must be greater than the third.
A. 6+10= 16>14 -----------a triangle
B. 12+15= 27<29 -----------not a triangle
C. 8+8= 16>11 -----------a triangle
D. 19+24= 43>40 ------------a triangle
E. 9+17= 26=26 -------------not a triangle
Hope this helps! :)
Class members that should be public are:
I. Constructors
II. Instance Variables
III. Accessors/ Mutators
IV. Methods the class uses for itself, but the user does not need
V. Methods the user needs to manipulate the objects of the class
a. I, II, IV
b. I, II, III
c. I, III, V
d. I, II, III, V
Class members that should be the public are: Constructors, accessors/ mutators and methods the user needs to manipulate the objects of the class. The correct answer is c. I, III, V.
What is class members?All members declared in a class as well as all members (apart from constructors and finalizers) defined in all classes in its inheritance structure are considered to be members of the class. Although they are inherited, derived classes cannot access private elements of base classes.
Class members are all the members (apart from constructors and destructors) defined in the class, as well as all the classes in its inheritance structure. Members of a class may be any of the following: Constant values represented by constants. Variables represented by fields.
If you want the class to be instantiated from anywhere, you must make the constructor public. If you want a class to be inheritable and its inherited classes to be instantiated, you must make the constructor protected.
A technique used to regulate changes to a variable is known as a mutator method. They're also frequently referred to as setter methods. A getter, often referred to as an accessor, frequently follows a setter and returns the value of the private member variable.
Therefore, the correct answer is (c). I, III, V.
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A triangle is shown in the image.
What is the area of the triangle represented?
A: 204 in2
B: 216 in2
C: 408 in2
D: 432 in2
Answer:
B. 216 in²
Step-by-step explanation:
You want to know the area of a triangle with a base of 36 inches and a height of 12 inches.
Area formulaThe area of a triangle is given by ...
A = 1/2bh
where b is the base of the triangle (one side), and h is the height to the opposite vertex, measured perpendicular to the base.
ApplicationThe figure shows a base of 36 inches and a height of 12 inches. Using these values in the formula, we have ...
A = 1/2(36 in)(12 in) = 216 in²
The area of the triangle is 216 in².
Answer: 216
Step-by-step explanation: I got it right sorry for the late comment
A student paid 13% value added tax (VAT) after receiving 8% discount from the seller while purchasing a mobile set to participate in online class. If the student paid Rs. 10396 to purchase the mobile set, by how much the price paid by the student or the price marked by the seller is more? Find.
Answer: 113% = 9153
100% = ?
100/113 X 9153 = 915300/113 = Rs 8100 = sale price
90 % = 8100
100% = ?
100/90 X 8100 = Rs 9000 = marked price
108% = 8100
100% = ?
100/108 X 8100 = Rs7500 = cost
Difference = 9000 -7500 = Rs 1500
1500/7500 X 100 = 20%
ANSWER Marked price is 20% above cost price
Step-by-step explanation:
Use the falling object model,h = -16t2 + s. If h is ground level ands is the initial height of 140 feet above the ground, determine the time (t) in seconds it will take an object to fall to the ground. a.1.71 secondsb.2.96 secondsc.3.06 secondsd.8.75 seconds
Answer:
b
Step-by-step explanation:
when the object is on the ground then h = 0 , then
- 16t² + 140 = 0 ( subtract 140 from both sides )
- 16t² = - 140 ( divide both sides by - 16 )
t² = [tex]\frac{-140}{-16}[/tex] = 8.75 ( take square root of both sides )
t = [tex]\sqrt{8.75}[/tex] ≈ 2.96 seconds ( to the nearest tenth )
4 adults took their 5 children to a movie. The price for the 9 people was $160. The 5 children recieved a 20% discount on their tickets. The cost for a child ticket is how much less than the cost of an adult ticket?
Answer:
The answer is $14.224.
Step-by-step explanation:
A cube with an edge of 20 cm is filled with water. Would this amount of water fit in a sphere with a 20 cm radius?
The volume of a sphere is 33409.6 cm³ and the volume of a cube is 8000 cm³. Therefore, the volume of water 8000 cm³ can fit in the sphere.
Given that, a cube with an edge of 20 cm is filled with water.
What is the volume?Volume is the measure of the capacity that an object holds.
Formula to find the volume of the object is Volume = Area of a base × Height.
We know that, the volume of cube =a³, where a=edge
Here, volume of cube =20³
= 8000 cm³
Radius of sphere is 20 cm
As we know, the volume of sphere = 4/3πr³
= 4/3 ×3.14×20³
= 1.33×3.14×8000
= 33409.6 cm³
The volume of a sphere is 33409.6 cm³ and the volume of a cube is 8000 cm³. Therefore, the volume of water 8000 cm³ can fit in the sphere.
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Find an equation for (-8,1) parallel to x-4y=4
The equation of line that passes through point (-8, 1) and parallel to x - 4y = 4 is x - 4y + 12 = 0.
What is equation of line?A line's equation is an algebraic way of expressing the collection of points that make up a line in a coordinate system.
The many points that collectively make up a line on the coordinate axis are represented as a group of variables (x, y) to create an algebraic equation, also known as an equation of a line.
The given equation is,
x - 4y = 4.
The slope of the given equation,
m = 1/4
The slope of the required line will be equal to given line if line is parallel.
The equation of line that passes through point (-8, 1) and parallel to line x - 4y = 4.
y - 1 = m (x - (-8))
y - 1 = 1/4.(x + 8)
4y - 4 = x + 8
x - 4y + 12 = 0
The required equation of line is x - 4y + 12 = 0.
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Evaluate y = ex + 1 for the following values of x. Round to the nearest thousandth.
x = −2, y ≈ x = 1, y ≈ x = 2, y ≈
Answer:
1.135,
3.718,
and 8.389
Step-by-step explanation:
Answer:
[tex]x=-2,\;y\approx\boxed{1.135}[/tex]
[tex]x=1,\;y\approx\boxed{3.178}[/tex]
[tex]x=2,\;y\approx\boxed{8.389}[/tex]
Step-by-step explanation:
Euler's number, denoted as the letter "e", is a mathematical constant approximately equal to 2.7182818 ( 7 d.p.).
To evaluate [tex]y=e^x+1[/tex] for the given values of x, substitute the value of x into the equation and evaluate using a calculator, rounding the final answer to 3 decimal places (nearest thousandth).
[tex]\begin{aligned}x = -2\implies y&=e^{-2}+1\\y&=0.135335...+1\\y&=1.135335...\\y&=1.135\end{aligned}[/tex]
[tex]\begin{aligned}x =1\implies y&=e^1+1\\y&=2.7182818...+1\\y&=3.7182818...\\y&=3.718\end{aligned}[/tex]
[tex]\begin{aligned}x = 2\implies y&=e^{2}+1\\y&=7.389056...+1\\y&=8.389056...\\y&=8.389\end{aligned}[/tex]
The chart shows the distances, in miles, between some towns.
Aranville
24
37
18
Bowtown
20
39
Cliffton
17
a) Write down the distance
from Bowtown to Dovebury.
c) Dave wants to drive from
Aranville to Cliffton and then
from Cliffton to Dovebury.
What is the total distance he
will drive?
The distance between Bowtown to Dovebury is 39.
The total distance Dave will drive is 54 miles.
What is meaning of total distance?
Total distance refers to the actual travel distance between the origin and destination locations of the material.
Given table is
Aranville
24 Bowtown
37 20 Cliffton
18 39 17 Dovebury
From the table, the distance from Bowtown to Dovebury is 39miles.
The distance between Aranville to Cliffton is 37 miles.
The distance between Cliffton to Dovebury is 17 miles.
Dave wants to drive from Aranville to Cliffton and then from Cliffton to Dovebury.
Total distance is (37 + 17) miles = 54 miles
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