8x + 38 = -3(-6 - 4x)
Answer:
x=5
Step-by-step explanation:
step one: distribute to get rid of parentheses. this means multiplying -3 by the numbers inside of the parentheses next to it.
-3(-6)= 18 and -3(-4x)=12x
this makes the equation now 8x+38=18+12x
step two: move x to one side of the equation. we can do this by using inverse operations, so we're going to subtract 8x from both sides.
8x-8x=0, 12x-8x= 4x.
this makes the equation now 38=18+4x
step three: isolate x. this means getting rid of the 18. to do this, we are going to use inverse operations again. this means subtracting 18 from both sides.
18-18=0, 38-18=20.
this makes the equation now 20=4x
step four: divide to get x by itself. we don't want to know what 4x is, we just want to know what plain x is. so we're going to use inverse operations for the last time and divide both sides by 4 because 4x is the same thing as saying "four times x"
20/4= 5, 4x/4=x
this makes the equation now 5=x
that's your answer, x=5. hope this helped!
Angie drives a horse buggy in the park. She charges a flat rate for each ride.
Which graph could represent her earnings.
The graph of the proportional relationship that models Angie's earnings is given as follows:
Graph B.
What is a proportional relationship?A proportional relationship is defined as follows:
y = kx.
Meaning that it is a special case of a linear function, with intercept of zero, meaning that it always passes through the origin.
Angie charges a flat rate for each ride, hence her total earnings are modeled by a proportional relationship.
From the graphs given by the image at the end of the answer, the only one that passes through the origin is graph B, hence graph B could represent her earnings.
Missing InformationThe graphs are given by the image shown at the end of the answer.
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2=7(−2)+4 what is y?
Answer:
2
Step-by-step explanation:
y would be the first number in the equation on the left side of the equal sign. This looks lik the y=mx+b formula, so m, being slope, would be 7, -3 would be x, and b would be 4.
Q is the midpoint of PR. If QR = x + 9 and PR = 3x + 9, what is PR?
Therefore, as per the solution from the linear equation in one variable, the line segment PR is 9 units.
What is a linear equation in one variable?A linear equation in one variable is one that is written in the form ax + b = 0, where a, and b are real numbers and the coefficients of x and constant, i.e. a and b, are not equal to zero.
Given :
PR is a line.
Q is the midpoint of PR. So PQ = PR.
QR = x + 9
PR = 3x + 9
According to the question, verification is
PQ = PR
X + 9 = 3x + 9
3x – x = 9 - 9
2x = 0
x = 0
Therefore, as PQ = PR
x + 9 = 3x + 9
0 + 9 = 0(3) + 9
9 = 9
PR = 3(0) + 9
PR = 0 + 9
PR = 9
Therefore, as per the solution from the linear equation in one variable, The line segment PR is 9 units.
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Therefore, as per the solution from the linear equation in one variable, the line segment PR is 9 units.
What is a linear equation in one variable?A linear equation in one variable is one that is written in the form ax + b = 0, where a, and b are real numbers and the coefficients of x and constant, i.e. a and b, are not equal to zero.
Given :
PR is a line.
Q is the midpoint of PR. So PQ = PR.
QR = x + 9
PR = 3x + 9
According to the question, verification is
PQ = PR
X + 9 = 3x + 9
3x – x = 9 - 9
2x = 0
x = 0
Therefore, as PQ = PR
x + 9 = 3x + 9
0 + 9 = 0(3) + 9
9 = 9
PR = 3(0) + 9
PR = 0 + 9
PR = 9
Therefore, as per the solution from the linear equation in one variable, The line segment PR is 9 units.
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What is the value of x?
Using the artofstat.com website, click on Web Apps, Permutation Test.You should be on the tab at the top of the screen that says "Data Entry and Descriptive Stats." Make sure that it is selected. We are going to enter the data to run a permutation test to see if there is a difference in the mean amount of time spent on emails per day between in state and out of state students.
First select "Enter Your Own Observations".
Under Name of Group 1 enter: In state Students
Under Name of Group 2 enter: Out of state students.
Under Name of Response Variable enter: time.
Enter the below data under the heading "Enter observations for each group, separated by spaces, or copy & paste from spreadsheet:"
Group 1: In state students: 2 1 1 2 2 2 4 3 4 1 2 2 1
Group 2: Out of state students: 1 2 2 3 1 1 1 2 5 2 2 1 1
Make sure that the option "Select Test Statistic:" says "Difference of sample means".
The test statistic appears at the bottom of the screen.
What is the test statistic?
Group of answer choices
A. 0.0769
B. 0.7315
C. 2
D. 0.231
Correct P-value = 0.6386 approximately equal to 0.64.
What is Permutation Distribution?
The permutation test is a statistical technique that is becoming more popular for creating sample distributions (or sometimes called a randomization test). Similar to bootstrapping, a permutation test resamples the observed data to create the sampling distribution, or "permutation distribution," rather than assuming it.
Group 1 data(in state sudents): 2 3 3 6 2 1 1 5 3 2.5
Group 2 data(out of state sudents):1 2 2 1 2 1 4 3 9 1 12 5 2
Summary Statistics For Permutation Distribution:
Permutations Unique Values Mean St. Dev. Min Q1 Median Q3 Max
10,000 71 -0.0153 1.15 -2.91 -0.877 0.00769 0.804 3.37
Permutation Test:
Number of Permutations Test Statistic Observed Value Number of Permutations with (x1 - x2) As or More Extreme Than Observed Value Permutation P-value
10,000 x1 - x2 -0.612 6,386 0.6386
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You deposit $6000 in an account earning 4% interest compounded monthly. How much will you have in the account in 5 years??
Only answer if you know ! Any other answers will be reported.
$7325.98 is the amount you have in the account in 5 years
How to calculate how much will you have in the account in 5 years?
Compound interest is the interest determined on the principal and the interest accumulated over the previous period.
Given that: You deposit $6000 in an account earning 4% interest compounded monthly.
Amount (A) = P(1+r)^t
Where P is the principal, r is the interest rate and t is the time
P = $6000, r = 4% / year = 4/12 = 1/3 % / month = 1/300 , t = 5 years = 5×12 = 60 months
A = P(1+r)^t
A = 6000(1 + 1/300)⁶⁰
A = $7325.98
Thus, you will have $7325.98 in the account in 5 years
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HELP ASAP!!!! 20 PTS
PLEASE HELP ME! i have been trying for hours
Step-by-step explanation:
The 3 possible solutions for the inequality.
Add (or subtract) a number from both sides. Multiply (or divide) both sides by a positive number. Simplify a side
try this to get your answer
answer
b5
Step-by-step explanation:
If b = 3, then the inequality becomes 17 ≥ 2(3) or 17 ≥ 6, which is true.
If b = 6, then the inequality becomes 17 ≥ 2(6) or 17 ≥ 12, which is not true.
If b = 2, then the inequality becomes 17 ≥ 2(2) or 17 ≥ 4, which is true.
If b = 5, then the inequality becomes 17 ≥ 2(5) or 17 ≥ 10, which is true.
Therefore, the solutions to the inequality 17 ≥ 2b are b = 3, b = 2, and b = 5.
Help me please I really need a fast answer because I don’t get the question please help me out!
The Answer is
D) x=3 and x=-4
Answer: it D
x=3 and x=-4
A triangle is shown with its exterior angles. Angles 2, 6, and 4 are the interior angles. Angle 1 is the exterior angle at angle 2. Angle 5 is the exterior angle at angle 6. Angle 3 is the exterior angle at angle 4.
Which statements are always true regarding the diagram? Check all that apply.
The answer to this Question based on Linear pair is 180 degree
What is Linear Pair?
A linear pair is a pair of adjacent angles that are supplementary, meaning they add up to equal 180 degrees. Linear pairs can be found in many shapes and geometric shapes, such as squares, rectangles, and parallelograms. Linear pairs can also be found in the angles of intersecting lines. When two lines intersect, four angles are formed, and two of them will always form a linear pair. Linear pairs can also be found in circles, as the angles formed by two chords that intersect with each other will always form a linear pair.
Suppose any triangle we are given 6 angles in which 3 are interior and 3 are exterior
suppose we take any pair of interior and exterior and we can see that it will always form a linear pair and its sum will be equal to 180 degree
Here in this question sum of angle 1 and 2
sum of angle 5 and 6
sum of angle 3 and 4
all will be same and will be equal to 180 degree by Linear Pair
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Answer:
a,b,c
Step-by-step explanation:
a) m∠3 + m∠4 = 180°
b) m∠2 + m∠4 + m∠6 = 180°
c) m∠2 + m∠4 = m∠5
these are the correct answers for edge 2023 geometry assignment; Triangle Angle Theorems
hope this helps!
thirteen black and six white hexagonal tiles were used to create the figure below. if a new figure is created by attaching a border of white tiles with the same size and shape as the others, what will be the difference between the total number of white tiles and the total number of black tiles in the new figure?
The difference between the total number of white tiles and the total number of black tiles in the new figure is 11.
Thirteen black and six white hexagonal tiles. If a new figure is created by attaching a border of white tiles with the same size and shape as the others
To find the difference between the total number of white tiles and the total number of black tiles in the new figure.
Now, According to the question:
The solution will be:
The first ring around the middle tile has 6 tiles, and the second has 12. From this pattern, the third ring has 18 tiles. Of these, 6+18=24 are white and 1+12=13 are black, with a difference of 24-13 = 11.
Hence, the difference between the total number of white tiles and the total number of black tiles in the new figure is 11.
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elise walks diagonally from one corner of a square plaza to another. each side of the plaza is 505050 meters.what is the diagonal distance across the plaza?
The diagonal distance across the plaza is 70.7 meters
Given,
In the question:
Elise walks diagonally from one corner of a square plaza to another.
Each side of the plaza is 50meters.
To find the diagonal distance across the plaza.
Now, According to the question:
We have been given that Elise walks diagonally from one corner of a square plaza to another. Each side of the plaza is 50 meters.
Since we know that diagonal of a square is product of side length of square and [tex]\sqrt{2}[/tex]. So we will find diagonal of our given square plaza by multiplying 50 by [tex]\sqrt{2}[/tex] .
Diagonal distance across the plaza = 50 x [tex]\sqrt{2}[/tex] .
We know that the value of [tex]\sqrt{2}[/tex] = 1.41421
Diagonal distance across the plaza = 50 x 1.41421
Diagonal distance across the plaza = 70.7105 ≈ 70.7
Hence, The diagonal distance across the plaza is 70.7 meters.
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Need help due tomorrow please
Find the value of the expression 2xy(8x - 3y), when x = 2 and y = 4.
A 48
B 72
C 64
D 24
Answer:
C 64
Step-by-step explanation:
1. 2(2)(4)(8(2)-3(4))
2.2(8)(16-12)
3. 16(4)
4. 64
Please I need help I need to pass this
Caroline bike 1,754 mile in ix month. If he bike the ame number of mile each month, about how many mile doe he bike each month
The distance covered in each month = 194.89 miles
What is unitary method ?The unitary method entails figuring out the value of a single unit from which we can extrapolate the values of all the required units.
What is Distance ?Distance. A line or line segment's length between two points along the line or line segment
According to the given information
Using unitary method
Distance covered in 9 months = 1,754 miles
Distance covered in each month = [tex]\frac{1754}{9}[/tex] miles
So,
The distance covered in each month = 194.89 miles
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A group of friends were working on a student film that had a budget of $1400. They used 23% of their budget on equipment. How much money did they spend on equipment?
Answer: $322
Step-by-step explanation:
1400x0.23 = $322
A random ample of 18 ize AA batterie for toy yield a mean of 2. 76 hour with tandard deviation, 1. 03 hour. (a) Find the critical value, t*, for a 99% CI. T* =
(b) Find the margin of error for a 99% CI
Therefore the solution of this problem is a)critic value t = 2.8982 b)margin of error= 2.985146
What is standard deviation?In statistics, the standard deviation measures how widely distributed or how much a set of values might vary. In contrast to a high standard deviation, which indicates that values are widely dispersed, a low standard deviation indicates that values are typically close to the set's mean.
Here ,
where s is the sample's standard deviation
Finding the number of degrees of freedom is the first step in solving this problem. The sample size has been reduced by 1.
So
df = 18 - 1 = 17
99% confidence interval
We must now determine the value of T, which can be done by consulting the t table, which has 17 degrees of freedom (on the y-axis) and a confidence level of).
[tex]1 - \frac{1-0.99}{2} =0.995[/tex]
So we have T = 2.8982.
The margin of error is:
M = T*s = 2.8982*1.03 = 2.985146
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A machine in a factory can assemble 234 units in 3 hours. Matt wants to write an equation to represent this situation. He says that the independent variable is the number of units assembled; the dependent variable is the number of hours, and the constant of proportionality is 78. What mistake did matt make in finding the parts of the equation that represents this relationship?.
Matt should take dependent variable is the number of units assembled; the independent variable is the number of hours to make it correct.
Explain variables.A variable is any qualities, number, or amount that can be estimated or counted. A variable may likewise be known as an information thing. Age, sex, business pay and costs, nation of birth, capital use, class grades, eye tone and vehicle type are instances of factors.
According o question:Considering that a machine in a plant can collect 234 units in 3 hours. Free factor is the no of units gathered and subordinate variable is the time taken.
Let y be number of hours and x be number of units assembled;
So, we can write
y = mx
Slope = y/x = 3/234 = 1/78
constant of proportionality is 78 is inverse, so To make correct we have to take dependent variable is the number of units assembled; the independent variable is the number of hours.
correct equation is, x = 78y
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The floor of a new planetarium will be a circle with a 33- diameter. The material for the floor will cot $3. 86 per quare. If no material i wated when making the floor, how could you find how much the floor will cot? How much will the floor cot? Ue 3. 14 for
The cost of the circular floor is $3299.77.
The space a circle takes up in a two-dimensional plane is known as the area of the circle.
For measuring the area occupied by a circular field or plot, use the area of a circle formula. The area formula will allow us to determine how much cloth is required to completely cover a circular table, for example.
Area of circle = [tex]\pi r^{2}[/tex]
Given in question,
[tex]\pi[/tex] = 3.14
Diameter = 33
Radius = Diameter/2
= 33/2
= 16.5
Area = 3.14*16.5*16.5
= 854.865 square
Cost per square = $3.86
Cost for 854.865 square = 3.86*854.865
= 3299.78
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I NEED ANSWERS QUICK
Equivalent expressions are expressions that have the same result.
The expression in this problem is defined as follows:
13 + 4g.
The commutative property is applied in this problem, meaning that the order of the terms is exchanged, hence the equivalent expression is given as follows:
4g + 13.
The numeric values of the expression are given as follows:
g = 2: 13 + 4(2) = 21, 4(2) + 13 = 21.g = 10: 13 + 4(10) = 53, 4(10) + 13 = 53.More can be learned about equivalent expressions at https://brainly.com/question/15775046
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Rewrite the expression with rational exponents as a radical expression by extending the properties of integer exponents. Y to the one third power all over y to the one sixth power.
The expression [tex]$\frac{3^{\frac{1}{3}}}{3^{\frac{1}{6}}}$[/tex] represents [tex]$\sqrt[6]{3}$[/tex]as rational exponents as a radical expression.
What is an expression?
"An expression in math is a sentence with a minimum of two numbers or variables and at least one math operation in it."
The given expression is:
[tex]$$\begin{aligned}& \frac{3^{\frac{1}{1}}}{3^{\frac{1}{6}}} \\& =3^{\frac{1}{3}-\frac{1}{6}} \\& =3^{\frac{1}{6}} \\& =\sqrt[6]{3}\end{aligned}$$[/tex]
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Mrs. Valdez is looking at a graph that shows a line drawn between two points with a slope of -5.
One of the points is smudged and she cannot read it. The points as far as she can tell are (3,5) and
(x, 10). What is the value of x? Show all of your work!
the value for x = 2
the explanation is above
i hope i helped
The enrollment for a school in 2010 was 1510 students. In 2020, the enrollment was 860 students. Find and interpret the rate of change in enrollment from 2010 to 2020.
Answer:
Step-by-step explanation:
The rate of change is the slope of the line formed by connecting the two data points:
1. (2010,1510). and [enrollment for a school in 2010 was 1510 students]
2. (2020, 860) [In 2020, the enrollment was 860 students]
Slope is the Rise/Run of the line. Lets go from the first point to the second.
The Rise: (1510 - 860) = 650
The Run: (2020-2010) = 10
The slope, or rate of change, is = 65
The interpretation is that "The enrollment at the school increase by an average of 65 students every year since 2010 until 2020."
Put the following equation of a line into slope-intercept form, simplifying all fractions.
2x+4y=-20
Answer: y = -5 - 1/2 x
Step-by-step explanation:
Slope intercept form: y=mx+b
2x+4y=-20
Isolate the y.
4y=-20-2x
Divide by 4.
y=-20/4-2x/4
y = -5 - 1/2 x
what is 1/12 simplified
Answer: it’s already in its simplest form
Step-by-step explanation:
Answer: The fraction [tex]\frac{1}{12}[/tex] is already at its simplest form.
Step-by-step explanation: Sorry if this isn't correct, hope this helps!
1. There are 9 tables with 3 candles on each table in the dining hall.
Which expressions can be used to find the number of candles in the dining hall?
Answer:
3+3+3+3+3+3+3+3+3=27
Step-by-step explanation:
just add it together.
x intercept of y = x-7
The x-intercept of the linear equation is (7, 0).
How to find the x-intercept of the linear function?Here we have the following linear equation:
y = x - 7
We want to find the x-intercept, this is the point where the line intercepts the x-axis, it will happen when we take the value of y = 0, then we need to solve.
0 = x - 7
Solving that, we get:
7 = x
Then we conclude that the x-intercept of the linear equation is (7, 0).
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What is the unit rate per muffin if Anna chose to buy 15 for $6.15?
Answer:
2.44$ per muffin
Step-by-step explanation:
15/6.15