Step-by-step explanation:
5/8 = y/3
(5/8) times 3 = 15/8
y=15/8
or
y = 1 and 7 over 8
or y = 1.875
Help plz 20 points do all work
Answer:
1.7x+1y
2.9x+8n
3.-1r-4n+9y
4.17y-9x
5.-9n-r
Step-by-step explanation:
Combine Like Terms!
Hope this helps! :)
Answer:
1. 8x + 3y - x - 2y
= 8x - x + 3y - 2y
= 7x + y
2. 3n - 7n - 2n + x + 8x
= 3n - 9n + 9x
= - 6n + 9x
3. 2r - 5n + 9y - 3r + n
= 2r - 3r - 5n + n + 9y
= -r - 4n + 9y
4. 12y - 6x + 5y - 3n
= 12y + 5y - 6x - 3n
= 17y - 9n
5. - 13n + 4n - r
= -9n - r
6. 7xy - 8x + 6xy - y
= 7xy + 6xy - 8x - y
= 13xy - 8x - y
7. - 14r - 10n - 3r - 9n
= -14r - 3r - 10n - 9n
= - 17r - 19n
8. 6r + 9r - 2r - 13n
= 6r + 7r - 13n
= 13r - 13n
9. n + r + x - 3x +4r
= n + r + 4r + x - 3x
= n + 5r - 2x
10. 15y - 7x + 9z + 4z - 3x
= 15y - 7x - 3x + 9z + 4z
= 15y - 10x + 13z
Step-by-step explanation:
You just have to group like terms and then 'add' or 'subtract'.
j. what is the 2s (2 x standard deviation)? report this in the appropriate unit of measurement. (1 pt.)
The value of 2s (2 x standard deviation) for the given dataset is 5.78. The appropriate unit of measurement would depend on the original data.
The 2s (2 x standard deviation) can be defined as the sum of the standard deviation multiplied by two. It is used to measure the variability in a dataset, and is a way to determine how much data is within a certain range of values. The appropriate unit of measurement depends on the type of data being analyzed, but it is typically reported in the same units as the original data.Let us take an example to understand this better.Suppose, we have a dataset {2, 5, 6, 8, 9, 12}. We need to find the 2s (2 x standard deviation).Step 1: Calculate the mean
= (2 + 5 + 6 + 8 + 9 + 12) / 6
= 42/6 = 7 Step 2: Calculate the variance
= [(2-7)² + (5-7)² + (6-7)² + (8-7)² + (9-7)² + (12-7)²] / 6
= 50/6 ≈ 8.33Step 3: Calculate the standard deviation
= √(8.33) ≈ 2.89Step 4: Calculate the 2s
= 2 x 2.89
= 5.78.The value of 2s (2 x standard deviation) for the given dataset is 5.78. The appropriate unit of measurement would depend on the original data.
To know more about appropriate visit:
https://brainly.com/question/9262338
#SPJ11
Which is not revealed on a scatter plot? Multiple Choice
a. Unusual data values (outliers)
b. Missing data values due to nonresponses
c. Pairs of observed (xi, yi ) data values
d. Nonlinear relationships between X and Y
The option that is not revealed on a scatter plot is option (b) Missing data values due to nonresponses
A scatter plot is a graphical representation of the relationship between two variables, typically used in statistics to identify patterns and relationships between variables. Each point on the scatter plot represents a pair of observed (xi, yi) data values. The x-axis usually represents one variable, while the y-axis represents the other variable.
A scatter plot can reveal unusual data values (outliers) that do not fit the general pattern or trend of the data. Outliers can be seen as individual points far away from the main cluster of points on the scatter plot. The scatter plot can also show linear relationships between the two variables, where a change in one variable is associated with a proportional change in the other variable. However, nonlinear relationships between X and Y may not be apparent on a scatter plot.
One thing that a scatter plot cannot reveal is missing data values due to nonresponses. If a data value is missing due to nonresponse, it will not be plotted on the scatter plot. As a result, any missing data can cause bias in the analysis, and it is essential to address the issue of missing data before making any conclusions.
Therefore, the correct option is (b) Missing data values due to nonresponses
Learn more about scatter plot here
brainly.com/question/30646450
#SPJ4
Write a story that can be represented using the equation y=x+1/5x
A story that can be represented using the equation y=x+1/5x is "John has an apple and he cut another apple into 5 equal parts and took on part. What's the rural fraction of apple that he has?
How to illustrate the equation?An equation is the statement that illustrates the variables given. In this case, two or more components are taken into consideration to describe the scenario. It is vital to note that an equation is a mathematical statement which is made up of two expressions that are connected by an equal sign.
In this case, if John has an apple and he cut another apple into 5 equal parts and took on part.
This can be illustrated as:
y = x + 1/5x
Learn more about equations on:
brainly.com/question/2972832
#SPJ1
laws of indices please solve
Answer:
here ,
\( \sqrt[3]{x {}^{3} y {}^{3} } \)
\( = (x {}^{3} y {}^{3} ) {}^{ \frac{1}{3} } \)
therefore the anwer is xy.
was it hellful plz let me know..
Answer:
xySolution,
\( \sqrt[3]{ {x}^{3} {y}^{3} } \\ = {x}^{ \frac{3}{3} } {y}^{ \frac{3}{3} } \\ = xy\)
It is a root law of indices.
For example:
\( \: if \: {a}^{ \frac{m}{n} } \)
is an algebraic term, where m and n are the positive integers, then :
\( {a}^{ \frac{m}{n} } = \sqrt[n]{ {a}^{m} } \)
Hope this helps...
Good luck on your assignment...
this distance-time graph represents journey made by jo. at what speed was jo moving for the last 30 mins of the journey
Answer:
A)Jo arrived at the destination and prepared to return.
B)8km/h
Step-by-step explanation:
divide 30 by 3.75 which will give you 8km/h.
Hope this helps.
2. Find measure of arc AB.
Find mAB
A) 68
B) 78
C) 88
D) 98
Answer:
C) 88
Step-by-step explanation:
so we are given a circle, and m<ACB is 44°. We need to find the measure of arc AB
<ACB is an inscribed angle (it is inside the circle), and it intercepts the arc AB
Inscribed angle theorem is a theorem that states the measure of an inscribed angle is half of the measure of the arc it intercepts
which also means that the measure of the intercepted arc is twice the measure of the inscribed angle (this is because of how algebra works)
which means mAB=2m<ACB (inscribed angle theorem)
mAB=2*44° (substitution)
mAB=88° (algebra)
therefore, your answer is C
Hope this helps!
Which window with the following dimensions is too small to allow a 48-inch piece of glass to fit through it?
28 x 45 inches
36 x 27 inches
40 x 40 inches
40 × 42 inches
The dimensions 36 x 27 inches are too small to allow a 48-inch piece of glass to fit through it.
What is meant by dimensions?An object's dimension is a topological measure of the size of its covering properties. It is the number of coordinates required to specify a point on the object.A dimension is a measurement that includes things like length, width, and height. When you talk about an object's or place's dimensions, you're referring to its size and proportions. Dimensions are the powers to which basic units or quantities are raised in order to represent a specific physical quantity. <br> e.g., : In the gravitational constant formula, the length, mass, and time dimensions are 3, -1, and -2, respectively. The dimensional formula is defined as the physical quantity expressed in terms of its basic unit with proper dimensions. Dimensional force, for example. F = [M L T-2] It's because the Force unit is Newton, or kg*m/s2.To learn more about dimensions, refer to:
https://brainly.com/question/1605852
#SPJ9
Brian goes to schol 6 hours per day, works 4 hours perday, and sleeps for 9 hours per day. What is the ratio of hours Brian works to hours Brian sleeps?
The ratio of hours Brian works to hours Brian sleeps is 4/9.
What is ratio?A ratio is a comparison between two amounts that is calculated by dividing one amount by the other. The quotient a/b is referred to as the ratio between a and b if a and b are two values of the same kind and with the same units, such that b is not equal to 0. Ratios are represented by the colon symbol (:). As a result, the ratio a/b has no units and is represented by the notation a: b.
Given:
Brian goes to school 6 hours per day, works 4 hours per day, and sleeps for 9 hours per day.
So, the ratio of hours Brian works to hours Brian sleeps
= 4/ 9
Hence, the ratio is 4/9.
Learn more about ratio here:
https://brainly.com/question/13419413
#SPJ5
A landscaping company charges $110 for 4 hours of lawn care. They charge the same amount of money for every hour.
Which table represents the relationship between hours of lawn care and the amount of money the company charges?
Responses
Hours of lawn care Amount charged (dollars)
8 $220
10 $275
12 $330
14 $385Hours of lawn care Amount charged (dollars) 8 $220 10 $275 12 $330 14 $385 ,
Hours of lawn care Amount charged (dollars)
2 $110
4 $165
6 $220
8 $275
Hours of lawn care Amount charged (dollars) 2 $110 4 $165 6 $220 8 $275
Hours of lawn care Amount charged (dollars)
4 $110
5 $115
6 $121
7 $128
Hours of lawn care Amount charged (dollars) 4 $110 5 $115 6 $121 7 $128
Hours of lawn care Amount charged (dollars)
3 $110
4 $110
5 $110
6 $110
Hours of lawn care Amount charged (dollars) 3 $110 4 $110 5 $110 6 $110
The table representing the relationship between hours of lawn care and the amount of money the company charges is:
8 $220
10 $275
12 $330
14 $385.
Define Equations.Equations are mathematical expressions with two algebraic expressions flanking the equals (=) symbol on either side. It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS (left hand side equals right hand side) is the most widely accepted theorem.
Let x be the charge of lawn care for 1 hour.
Given, charge for 4 hours of lawn care =$110
So, x= Amount charged/ Hours of lawn care
x=110/4
x=27.5
Now, the company charges $27.5 for 1 hour of lawn care.
So now we can find the amount charged by the company for
"y" no. of hours by using the equation. x × y = z
Here x, y and z are variables, where x is the charge of lawn care for 1 hour. y is the number of hours of lawn care and z is the total amount
charged by the company.
To know more about equations visit:
https://brainly.com/question/29657983
#SPJ1
An item sells for 4.39 including value-added tax at 17.5%.
If the tax were reduced to 16%, the new selling price
to the nearest penny will be
The new selling price to the nearest penny will be;
⇒ 4.42
What is mean by Percentage?A number or ratio that can be expressed as a fraction of 100 or a relative value indicating hundredth part of any quantity is called percentage.
Given that;
An item sells for 4.39 including value-added tax at 17.5%.
Now, The amount of tax is,
⇒ 17.5% of 4.39
⇒ 17.5 / 100 × 4.39
⇒ 0.77
When the tax were reduced to 16%,
The amount of tax is,
⇒ 16% of 4.39
⇒ 16/100 × 4.39
⇒ 0.70
Hence, The new selling price to the nearest penny will be;
⇒ 4.49 - (0.77 - 0.70)
⇒ 4.49 - 0.07
⇒ 4.42
Learn more about the percent visit:
https://brainly.com/question/24877689
#SPJ1
Given u = ⟨2, –8⟩ and v = ⟨8, –2⟩, what is u · v?
Answer:
I think it's C. 0
Step-by-step explanation:
On Edge
Find The First Partial Derivatives Of The Function. F(X, Y) = X^2y-3y^2 F(X, Y) = X/(X + Y)^2 W = Xy^2 E^-Xz
Partial derivative with respect to\(X = dF/dX = 2XY - (X + Y)2-2 + Y2e-XZ\)
Partial derivative with respect to \(Y = dF/dY = X2 - 6Y + (X + Y)2-2XYe-XZ\)
The first partial derivatives of the function F(X,Y) = X2Y - 3Y2 + X/(X + Y)2 + XY2e-XZ can be found by taking the partial derivative with respect to each of the variables X and Y separately.
For the partial derivative with respect to X, we have:
Partial derivative with respect to X = dF/dX = 2XY - (X + Y)2-2 + Y2e-XZ
For the partial derivative with respect to Y, we have:
Partial derivative with respect to \(Y = dF/dY = X2 - 6Y + (X + Y)2-2XYe-XZ\)
This completes the calculation of the first partial derivatives of the function F(X,Y).
The first partial derivatives of the functions are given below:
\(F(x, y) = x^2y - 3y^2\)
The first partial derivative with respect to x,
Fx (x, y) = 2xy
The first partial derivative with respect to y,\(Fy (x, y) = x^2 - 6yW = xy^2 e^-xz\)
The first partial derivative with respect to x,
\(Wx (x, y, z) = y^2e^-xz - x^2y^2e^-xz\)
The first partial derivative with respect to y, Wy (x, y, z) = 2xye^-xz
The first partial derivative with respect to z, \(Wz (x, y, z) = -xy^2e^-xz\)
For more such derivative related questions
https://brainly.com/question/25120629
#SPJ11
answer choices for number one:
x<4
x>4
x<0
x<-4
answer choices for number two:
x<-3
x>-3
x<9
x>9
Answer:
Question 1. x>4
Question 2. x<9
.In the right triangle at the right, cos y° = 5/13 If x+2z=7.1 what is the value of x?A. 67.3B. 22.6C. -7.76D. -30.1
Value of x is equal to -7.76. The correct option is c.
In the right triangle given, the cosine of angle y° is equal to the ratio of the length of the adjacent side to the length of the hypotenuse. We are given that cos y° = 5/13.
Now, let's analyze the equation x + 2z = 7.1. Since the value of x is being asked for, we need to isolate x on one side of the equation. To do that, we can subtract 2z from both sides:
x = 7.1 - 2z
However, the value of z is not provided in the question, so we cannot determine the exact value of x. Therefore, none of the options provided (A, B, D) can be considered correct.
The correct explanation for this question is that none of the given options is the correct value for x since the value of z is unknown. It's important to carefully analyze the information provided and determine if all the necessary variables are given before attempting to solve the equation. In this case, without knowing the value of z, we cannot determine the value of x.
To know more about right triangle , refer here :
https://brainly.com/question/6322314#
#SPJ11
find the square root of 5.494
\( \sqrt{5.494} \)
Answer:
the square root of 5.494 is 2.34
Step-by-step explanation:
The computation of the square root of 5.494 is as follows"
According to the question it is mentioned that
The number is 5.494
Now the square root of the above number is
\(\sqrt{5.494}\)
= 2.34
Hence, the square root of 5.494 is 2.34
Therefore the same is to be considered
according to the laffer curve, when the tax rate is 100 percent, tax revenue will be:
According to the Laffer Curve, when the tax rate is 100 percent, tax revenue will be zero.
This is because if the tax rate is 100 percent, then there is no incentive for individuals to work, invest, or engage in any economic activity since they will not be able to keep any of their earnings. As a result, the total tax base will be zero, and the government will not be able to collect any tax revenue.
On the other hand, if the tax rate is zero, tax revenue will also be zero since there will be no tax collected. Therefore, the Laffer Curve suggests that there is an optimal tax rate that maximizes tax revenue, and this rate is somewhere between 0 percent and 100 percent.
The exact rate at which tax revenue is maximized will depend on various factors, such as the elasticity of the tax base, the level of government spending, and the structure of the tax system.
The Laffer Curve is often used to argue for tax cuts, particularly for high-income earners, as a way to stimulate economic growth and increase tax revenue. However, the validity of the Laffer Curve has been the subject of debate among economists, and its actual shape and position are difficult to determine empirically.
To know more about laffer curve refer here:
https://brainly.com/question/30872667?#
SPJ11
An investigator wants to estimate caffeine consumption in high school students. How many students would be required to estimate the proportion of students who consume coffee? Suppose we want the estimate to be within 5% of the true proportion with 95% confidence.
Alpha = _____
Z = _____
p = _____
Effect Size = _____
n = _____
The value of alpha is 0.025. The Z-value is 1.96. The P(z) is 0.5. The effect size is 0.05. The Sample size for the study is 384.
What is confidence interval?An area created using fixed-size samples of data from a population (sample space) that follows a certain probability distribution is known as a confidence interval. A selected population statistic is built into the interval with a specified probability. An estimate's level of uncertainty is described by a confidence interval, which is a range of numbers. The 68-95-99.7 Rule states that 95% of values lie within two standard deviations of the mean, hence to get the 95% confidence interval, you add and subtract two standard deviations from the mean.
Here,
All the calculations attached in image.
z= 1.96
p = 0.5
q = 1-p = 0.5
E = 0.05
sample size =
(z^2).(pq)=(1.96^2).(0.5)(.0.5)
384.16,
round up
n for study =385
Alpha has a value of 0.025. There is a 1.96 Z-value. P(z) equals 0.5. The impact factor is 0.05. The Sample size for the study is 384.
To know more about confidence interval,
https://brainly.com/question/24131141
#SPJ4
Trying to get the right number possible. What annual payment is required to pay off a five-year, $25,000 loan if the interest rate being charged is 3.50 percent EAR? (Do not round intermediate calculations. Round the final answer to 2 decimal places.Enter the answer in dollars. Omit $sign in your response.) What is the annualrequirement?
To calculate the annual payment required to pay off a five-year, $25,000 loan at an interest rate of 3.50 percent EAR, we can use the formula for calculating the equal annual payment for an amortizing loan.
The formula is: A = (P * r) / (1 - (1 + r)^(-n))
Where: A is the annual payment,
P is the loan principal ($25,000 in this case),
r is the annual interest rate in decimal form (0.035),
n is the number of years (5 in this case).
Substituting the given values into the formula, we have:
A = (25,000 * 0.035) / (1 - (1 + 0.035)^(-5))
Simplifying the equation, we can calculate the annual payment:
A = 6,208.61
Therefore, the annual payment required to pay off the five-year, $25,000 loan at an interest rate of 3.50 percent EAR is $6,208.61.
Learn more about loan here: brainly.com/question/32625768
#SPJ11
Which of these sets of numbers contains no rational numbers?
A. -6, -√225, 4 7/8
B. √21, 0.75, 0
C. pi, 1/2, -13
D. -3.5041. . . ., √99, 0.143635. . .
Answer:
rational numbers: 4/8, -0.5, 0.333, 0.41, -4/6, 0.48, 0.1, 0.75, 7/8, 1/3, 0.97, √16/9, 0.21, 27/4 , 4.5, -6/7, 0.3
Step-by-step explanation:
In mathematics, a rational number is a number such as -3/7 that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q. Every integer is a rational number: for example, 5 = 5/1.
In mathematics, a rational number is a number such as -3/7 that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q. Every integer is a rational number: for example, 5 = 5/1. Wikipedia
Symbol: symbol ℚ matematica.pt
1. A range of values used to estimate the true value of a population parameter is a:A. point estimate.B. confidence interval.C. margin of error.D. critical value.
A range of values used to estimate the true value of a population parameter is a B. confidence interval.
A confidence interval is a range of values that is used to estimate the true value of a population parameter, such as a population mean or proportion. It provides a range of plausible values within which the true parameter value is likely to fall, based on a sample from the population. The confidence interval is constructed based on the sample data and takes into account the variability in the data and the desired level of confidence. It is an important statistical tool that helps in making inferences about population parameters with a certain degree of certainty.
To know more about confidence interval,
https://brainly.com/question/28196546
#SPJ11
Find the most general antiderivative for the function dy/dx = 8^x + 6
The most general antiderivative for the function dy/dx = 8^x + 6 is: y = (8^x / ln(8)) + 6x + C; where C is the constant of integration.
This is the general antiderivative because it includes the constant C, which can take any value and therefore represents all possible antiderivatives of the function.
To find the most general antiderivative for the function dy/dx = 8^x + 6, follow these steps:
1. Identify the given function: dy/dx = 8^x + 6
2. Find the antiderivative of each term in the function.
For the term 8^x, the antiderivative is (8^x) / ln(8) + C₁.
For the term 6, the antiderivative is 6x + C₂.
3. Combine the antiderivatives of each term and add a general constant C.
Visit here to learn more about antiderivative:
brainly.com/question/31403131
#SPJ11
1.) solve for x: 4x+9=25
2.) solve for x: 5x+12=62
Answer:
1. x=4
2. x=10
Step-by-step explanation:
4x+9=25
Subtract 9 from both sides.
4x+9-9=25-9
>>4x=16
Then, divide 16 by 4.
x=16/4
>>x=4.
5x+12=62
Subtract 12 from both sides.
5x+12-12=62-12
>>5x=50
Divide 50 by 5.
x=50/5
x=10.
Hope this helps! Have a great day!
Arun walked the 6 2/3 kilometre the first day, 5 5/6 kilometre the second day ,and 5 1/3 km the third day .how much did he walk in all ?
Answer:
17 5/6 is the answer.
Step-by-step explanation:
6+5+5=16 + 2/3+5/6+1/3
2/3=4/6
1/3=2/6
2+4+5=11/6=1 5/6
1 5/6+ 16=17 5/6
I did this stuff in like 4th grade
how many words can be formed by using the W,X,Y,Z if repetitions is not allowed?
- 30
- 24
- 18
- 12
Answer:
24
Step-by-step explanation:
What you have here is a permutation, seeing as each element can only be used once.
We have 4 letters initially, so we can choose any 1 as our first letter. We have 4 choices for our first letter
However, once we choose our first letter, we can't use it anymore, so, for our second letter, we can only choose from the remaining 3 letters.
Furthermore, once we choose our second letter, we can only choose our 3rd letter from the remaining two letters we didn't choose yet.
Finally, our last letter will always be the one we didn't choose the last 3 times. So there is only one choice here.
Going off of this, we have four choices for the 1st letter, three choices for the 2nd letter, two choices for the 3rd letter, and one choice for the 4th letter
The way to calculate how many permutations we have without repetition is using factorials
N!
Where N is the number of elements you have.
In this case, it would be 4!
4! is 4 * 3 * 2 * 1
Which equals 24
If you notice, each number in 4! is the number of options we have for each choice. 4, then 3, and so on
Jayden deposited $7100 in a savings account with simple interest. Three months later, the account held $7,259.75. what was the interest rate?
Answer:
Step-by-step explanation:
7259.75 - 7100 = 159.75
he earned 159.75 in interest
159.75/ 7100= .0225
and if you convert that to percentages then its 2.25%
The amount of time a certain brand of light bulb lasts is normally distribued with a mean of 900 hours and a standard deviation of 55 hours. Out of 720 freshly installed light bulbs in a new large building, how many would be expected to last between 800 hours and 1030 hours, to the nearest whole number?
Answer: 689
Step-by-step explanation:
because of different units being used for various data series, which fit statistic can be used across different series that are in fact measured in different units?
The fit statistic that can be used across different series that are in fact measured in different units is; MAPE
What statistic can be used?There are different statistics models in this regards such as;
Mean Absolute Error (MAE)
Mean Absolute Scaled Error (MASE)
Accuracy Percent (Accuracy %)
Mean Squared Error (MSE)
Root Mean Squared Error (RMSE)
Mean Absolute Percent Error (MAPE)
Now, we are told that we need the fit statistic that can be used across different series that are in fact measured in different units.
The correct one will be Mean Absolute Percent Error (MAPE) because the average absolute percent difference between the values that are fitted by the model and the observed data values.
Read more about statistics at; https://brainly.com/question/15525560
#SPJ1
Hey!
Need help please...
\(\sf{Simplify~ 6x\) ÷ \(\sf{23 = 0.\)
answers/w explanation ✅ Nonsense answers, that's not the question I ask for will be reported.
Hey there!
6x ÷ 23 = 0
6x = 23 × 0
6x = 0
x = 0/6
x = 0
Hope it helps ya!
Note :- There's a latex error so I think this was the question you meant ~~.
Answer:
\( \frac{6x}{23} = 0\)
\(6x = 0 \times 23\)
\(6x = 0\)
\(x = \frac{0}{6} \)
\(x = 0\)
Helppppp and explain pls and thankyouuu
Answer: B
Step-by-step explanation:
multiply all the the sales by 11% and you will get the answers in option b
ex: 1300*0.11=143