Can somebody please help me with this

Answer:

C

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Given

y - x = 5 ( add x to both sides )

y = x + 5 ← in slope- intercept form

with slope m = 1

Parallel lines have equal slope, thus

the slope of a parallel line is m = 1 → C

The quotient of 2.860 divided by 61.4, expressed with the correct number of significant figures, is approximately 0.0466.

To calculate the quotient, divide 2.860 by 61.4:

2.860 ÷ 61.4 = 0.046590909...

Since we need to express the result with the correct number of significant figures, we consider the significant figures in the original numbers.

The number 2.860 has four significant figures, and the number 61.4 has three significant figures.

To ensure the final result has the correct number of significant figures, we round it to match the least number of significant figures in the original numbers. In this case, it is three significant figures (from 61.4).

Rounding the result, we get approximately 0.0466, with three significant figures.

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Answer:

k=4

Step-by-step explanation:

cross multiply so it would be:

8k+24=56

subtract 24 from 56

8k+24-24=56-24

8k=32

divde

8k/8=32/8

k=4

Function notation is an important tool in mathematics and is used to express the relationship between two variables.

A function is a process or set of actions that is used to complete a specific task. It is a self-contained unit of code that takes input from the user and produces a desired output. Functions are important for programming, as they help to organize code and make it easier to read, debug, and maintain.

A function is a rule that assigns a unique output to every input. The inputs are listed in the domain of the function and the associated outputs are listed in the range of the function. The notation used for a function is usually f(x), where x is the input to the function and f(x) is the output.

The function notation is used to express the relationship between the input and output of a given function. The notation is composed of the function name, followed by the input in parentheses. For example, a function named f with an input of 3 can be written as f(3). The function notation is also used to express the rules used to calculate the outputs from the inputs. For example, if the function f has the rule f(x) = -5 when x is 3, then it can be written as f(3) = -5.

Function notation can also be used to express the composition of two or more functions. For example, if the functions f and g are composed, then the notation to express this is (f o g)(x). This notation is read as “f composed with g of x” and means that the output of g is used as the input for f.

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Answer:45 x 12 = 450

15 x 10 = 150

35 x 15 = 525

43 x 14 = 602

Step-by-step explanation:

Answer: 52.5

Step-by-step explanation: 175 x .3

Answer:

30 × 175 / 100

52.5

step by step explanation

Answer:

its irrational

7.07106781187

look at how the decimals are all over the place

if it was rational it would've been something like this

7.070707070707 or 7.071071071071

hope that answers your question

Step-by-step explanation:

Answer:

$ 3.39

Step-by-step explanation:

X = 45 - (13.87*3)

x = 45 - 41.61

x = 3.39

The goat can reach a circular region centered at the corner of the rectangular burn where it is tethered. The radius of the circle is 50 feet, the length of the goat's rope.

To visualize the region the goat can reach, we can draw a diagram of the rectangular burn and the circular region around the tethered goat. The center of the circle is at the corner of the rectangular burn where the goat is tethered. The radius of the circle is 50 feet, which is the length of the goat's rope. The circle intersects the sides of the rectangular burn, dividing them into two segments. The goat can move freely within the circular region, but it cannot reach any part of the rectangular burn that is outside the circle.

In summary, the region the goat can reach is a circular region centered at the corner of the rectangular burn where it is tethered. The radius of the circle is 50 feet, which is the length of the goat's rope. The circle intersects the sides of the rectangular burn, dividing them into two segments, and the goat cannot reach any part of the rectangular burn that is outside the circle.

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c). The entities on which data are collected are called elements.

Data collection is a process of gathering information from different sources which is later used for analysis and interpretation. Data is usually collected from elements, which are individual units like people, organizations, or any other physical or virtual entity.

Each element has a set of characteristics or attributes which are collected to form the data. For example, if data is being collected from people, the attributes would include age, gender, occupation, income, etc. This data is then collected and stored in some form that can be used for further analysis.

Data can also be collected from populations, which are a collection of elements or a group of elements with certain features in common. In this case, the data collected is the average of all the elements in the population, rather than data from individual elements.

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Results:

(i)The amount Willow would lose in profit per mug if she uses the printing company = $12.50.

(iii) the total profit she would lose after selling all 65 mugs at $22 per mug = $812.50

To calculate the profit Willow would lose per mug, we use the formula:

Profit (P) lost per mug = Selling price (SP) per mug - Cost Price (CP) per mug:

$22 - $9.50 = $12.50

Thus, Willow will lose $12.50 in profit per mug if she uses the printing company.

To calculate the total profit, she would lose after selling all 65 mugs, we  multiply the profit lost per mug by the number of mugs:

$12.50 x 65 = $812.50

Therefore, Willow would lose $812.50 in profit after selling all 65 mugs at $22 per mug using the printing company instead of her own printing press.

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The proportion of the variation in the dependent variable y that is explained by the estimated regression equation is measured by the coefficient of determination.

What is coefficient of determination?

The effectiveness of a statistical model in forecasting a result is shown by the coefficient of determination (R²). The dependent variable in the model is a representation of the result.

R² can have a value of 0 or 1, with 1 being the maximum achievable. Simply said, a model's R² will be closer to 1 the more accurate its predictions are.

R² is a more precise measure of goodness of fit. The amount of volatility in the dependent variable that the model can account for.

You can typically tell whether your linear regression data's R² is high or low by graphing it. The graphs below, for instance, display two sets of simulated data:

Dots represent the observations.

The line of best fit, or predictions of the model, is displayed as a black line.

Purple lines represent the deviations (the residuals) between the data and their expected values.

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Answer:

The answer is the last one - X= 9.9 Y= 7

Answer: B

Step-by-step explanation:

If you use slope-intercept form, you can see that B uses the equation y = 5x - 4, and you can also see that it is linear since it is proportional. The only coordinate plane that has a nonlinear line is D.

Answer:

a = \(\frac{3}{4}\)  

I hope this helps!

Answer:

C) \(628\:\text{cm}^2\)

Step-by-step explanation:

\(SA=2\pi rh+2\pi r^2\\\\SA=2\pi(\frac{10}{2})(15)+2\pi(\frac{10}{2})^2\\ \\SA=150\pi+50\pi\\\\SA=200\pi\:\text{cm}^2\approx628\:\text{cm}^2\)

Numerical values that appear in the mathematical relationships of a model and are considered known and remain constant over all trials of a simulation are parameters.

Numerical values that appear in the mathematical relationships of a model and are considered known and remain constant over all trials of a simulation are not referred to as events.

In the context of simulations, these constant numerical values are typically known as parameters.

Parameters are fixed values that define the characteristics of a system or model being simulated.

They represent the fixed inputs or conditions that remain constant throughout the simulation.

These values are determined based on prior knowledge, experimental data, or theoretical assumptions.

For example, in a simulation model of a manufacturing process, parameters may include the production rate, the machine capacity, the setup time, or the defect rate.

These values are known and constant throughout the simulation runs.

It is important to distinguish parameters from variables in simulations. While parameters remain constant, variables are the factors or quantities that can change during the simulation and are often the focus of analysis or study.

By incorporating known and constant parameter values into a simulation model, researchers can analyze the behavior and performance of the system under different conditions, explore various scenarios, and make predictions or decisions based on the simulation outcomes.

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To compute px(x), we sum the joint probabilities over all possible values of y:

px(x) = Σp(x,y) for all y

Substituting the given values for p(x,y):

px(x) = Σd/[(n(n+1))/2] for y=1 to x

px(x) = xd/[(n(n+1))/2]

To compute py(y), we sum the joint probabilities over all possible values of x:

py(y) = Σp(x,y) for all x

Substituting the given values for p(x,y):

py(y) = Σd/[(n(n+1))/2] for x=y to n

py(y) = (n-y+1)d/[(n(n+1))/2]

To determine whether x and y are independent, we compare the product of the marginal probabilities to the joint probability:

If px(x)*py(y) = p(x,y), then x and y are independent.

Substituting the computed values for px(x) and py(y):

px(x)*py(y) = [xd/[(n(n+1))/2]]*[(n-y+1)d/[(n(n+1))/2]]

px(x)*py(y) = (xd/n)*(n-y+1)/n

px(x)*py(y) = xd(n-y+1)/n^2

Comparing to the given value for p(x,y):

p(x,y) = d/[(n(n+1))/2]

We see that px(x)*py(y) is not equal to p(x,y) in general. Therefore, x and y are not independent.

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Answer:

A

Step-by-step explanation:

You have to look at x- intercept then the y-intercept.

Answer:

A.

Step-by-step explanation:

(x axis, y axis) when you see formula, you see that it's point A

Answer:

119 is the value of x when y = 7

Step-by-step explanation:

Since y varies inversely with x, we can use the following equation to model this:

y = k/x, where

Step 1:  Find k by plugging in values:

Before we can find the value of x when y = k, we'll first need to find k, the constant of proportionality.  We can find k by plugging in 49 for y and 17 for x:

Plugging in the values in the inverse variation equation gives us:

49 = k/17

Solve for k by multiplying both sides by 17:

(49 = k / 17) * 17

833 = k

Thus, the constant of proportionality (k) is 833.

Step 2:  Find x when y = k by plugging in 7 for y and 833 for k in the inverse variation equation:

Plugging in the values in the inverse variation gives us:

7 = 833/x

Multiplying both sides by x gives us:

(7 = 833/x) * x

7x = 833

Dividing both sides by 7 gives us:

(7x = 833) / 7

x = 119

Thus, 119 is the value of x when y = 7.

a) Yes, It does. The scatterplot support the newspaper report about number of semesters and starting salary.

b) The value is relatively low, indicating that there are other factors that also contribute to starting salary.

c) The correlation coefficient is a value between -1 and 1 that measures the strength and direction of the linear association between two variables.

a) The scatterplot appears to show a positive association between the number of semesters needed to complete an academic program and the starting salary in the first year of a job. As the number of semesters increases, the starting salary generally increases as well. Therefore, the scatterplot supports the newspaper report.

b) The coefficient of determination, or R-squared value, represents the proportion of the variation in the dependent variable (starting salary) that is explained by the independent variable (number of semesters). A value of 0.335 means that 33.5% of the variation in starting salary is explained by the number of semesters. This value is relatively low, indicating that there are other factors that also contribute to starting salary.

c) The correlation coefficient is a value between -1 and 1 that measures the strength and direction of the linear association between two variables. A value of 1 indicates a perfect positive correlation, a value of -1 indicates a perfect negative correlation, and a value of 0 indicates no correlation. The correlation coefficient for this data is not provided in the problem, so it is not possible to determine it. Without the correlation coefficient, it is not possible to interpret the strength and direction of the association between number of semesters and starting salary.

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1) True

2) If you consider that a+b can be equal to c, then, (a+b)^2 = c^2.

c^2 is in exponential form. Hence, the given statement is true.

3) (ab)^3 = a^3*b^3. The given statement is false.

4) Take into account that the number (-5)^10 is positive regardless the base is 5 or -5 (becasue the exponent is odd, then, the result is always positive). Then,

(-5)^10 can be written also as (5)^10 and the given statement is true.

5) By definition, a term written in the form x, y or a, has exponent 1. The statement is true.

Answer:

The volume is 83.6 cubic inches.

Step-by-step explanation:

We know that the battery is cylindrical, so we can use the formula:

\(\pi r^{2} h\)

We can use 3.14 for \(\pi\), and we know that the radius is 2.2 with a height of 5.5.

Let's set up the equation:

3.14 · 2.2² · 5.5= volume

=83.5868, which rounded to the nearest tenth would equal 83.6.

Hope this helps! :)

Answer:

C

Step-by-step explanation:

Answer:

A is the correct answer because there can only be one of each input. Like repeating 2, 6, 4, 0, and 1 in the other ones wont work.

Answer:

765

Step-by-step explanation:

4500x8,5= 38250/100=382,5 x2= 765

For a number to be divisible by 4, its last two digits must form a number divisible by 4. Using the given digits, we can create the following such numbers: 12, 24 and 32. For each such number, there are 2 ways to select the remaining two digits. Therefore, there are \(3\cdot2=6\) such integers.

Answer:

The answer is D

Step-by-step explanation:

because if you do the methoes method you know that it rules out 1 and 2 and 3 after you do that its just between C and D, for the caunususicon it has to be D, that is why i think its D. hope this helps

Answer:

C

Step-by-step explanation:

tan V = \(\frac{opposite}{adjacent}\) = \(\frac{UT}{UV}\) = \(\frac{8}{15}\) → C