According to the balanced chemical equation below, how many
grams of H2O are produced if 4.85 grams of CO2 were produced? 2
C8H18 + 25 O2 --> 16 CO2 + 18 H2O

Answer:

x= -3 / 8

Step-by-step explanation:

5x+7+3x-4=0

Sum 5x and 3x

8x+7-4=0

Subtract 7-4

8x+3=0

Move the constant to the other side and change his symbol with his opposite

8x=-3

8 is multiplying x, the opposite of multiplying is dividing, so it divide the -3 (under it)

x= -3 / 8

The equation: \(\frac{x^{2}}{6^{2}}={y^{2}+z^{2}\),  represents a circle with radius r = y = x/6, and the surface that results is a cone, as obtained with the help of surface of revolution.

Now,

If we consider the point (6y, y, 0) in the xy plane, it appears to be a circular path that is a cone when the curve is rotated about the x axis. The cone's equation takes the following form:

\(\frac{x^{2}}{c^{2}}=\frac{y^{2}}{a^{2}}+\frac{z^{2}}{b^{2}}\)

Given that x = 6y, we square x = 6y to give the equation the form shown above, which results in:

x² = (6y)²

x² = 36y²

Circular paths go parallel to the y-axis, hence the equation should be circular in nature. 36z² needs to be added, so:

x² = 36y² + 36z²

=> \(\frac{x^{2}}{6^{2}}={y^{2}+z^{2}\)

Hence, This equation represents a circle with radius r = y = x/6, and the surface that results is a cone, as obtained with the help of surface of revolution.

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The annual percent decreases by 33% in the function given.

To find the annual percent increase or decrease in the function y = 0.35(0.67)ˣ, we need to determine the value of (0.67)ˣ.

Let's calculate it for x = 1 and x = 2 to illustrate the process:

For x = 1:

(0.67)¹ = 0.67

For x = 2:

(0.67)² = 0.4489

To find the percent increase or decrease between these two values, we'll use the following formula:

Percent Change = ((New Value - Old Value) / Old Value) × 100

Percent Change = ((0.4489 - 0.67) / 0.67) × 100

Percent Change = (-0.2211 / 0.67) × 100

Percent Change = -0.3298 × 100

Percent Change ≈ -33%

Therefore, the annual percent decreases by 33% in the function given.

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Answer:

There are two types of similar triangle problems; these are problems that require you to prove whether a given set of triangles are similar and those that require you to calculate the missing angles and side lengths of similar triangles. Subtract both sides by 130°. Hence; By Angle-Angle (AA) rule, ΔPQR~ΔXYZ.

Step-by-step explanation:

Mr. Mensah's total earnings at the end of the fifteenth year of service is €1920.00 + €2520.00 = €4440.00.

To calculate Mr. Mensah's salary in the fifteenth year of service, we need to determine the pattern of salary increase over the years.

We know that Mr. Mensah's salary starts at €6400.00 and increases by €240.00 every year for the first eight years. After that, he is promoted to a new post with an annual salary of €9500.00, which increases by €360.00 every year.

Let's break it down:

For the first eight years, the salary increases by €240.00 per year:

After 1 year: €6400.00 + €240.00 = €6640.00

After 2 years: €6640.00 + €240.00 = €6880.00

...

After 8 years: €6400.00 + (8 * €240.00) = €6400.00 + €1920.00 = €8320.00

From the ninth year onwards, the salary increases by €360.00 per year:

After 9 years: €9500.00 + €360.00 = €9860.00

After 10 years: €9860.00 + €360.00 = €10220.00

...

After 15 years: €9500.00 + (7 * €360.00) = €9500.00 + €2520.00 = €12020.00

Therefore, Mr. Mensah's salary in the fifteenth year of service is €12,020.00.

To calculate Mr. Mensah's total earnings at the end of the fifteenth year of service, we need to sum up his salaries from year 1 to year 15.

For the first eight years, the total earnings can be calculated as follows:

Total earnings = (Salary in year 1 + Salary in year 2 + ... + Salary in year 8) = 8 * €240.00 = €1920.00

From the ninth year onwards, the total earnings can be calculated as follows:

Total earnings = (Salary in year 9 + Salary in year 10 + ... + Salary in year 15) = 7 * €360.00 = €2520.00

Therefore, Mr. Mensah's total earnings at the end of the fifteenth year of service is €1920.00 + €2520.00 = €4440.00.

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Answer: 10

Step-by-step explanation:

We need to find the hypotenuse (the hypotenuse is the diagonal side of a right triangle), so we can use this formula: \(a^2+b^2=c^2\)

The two "legs" are a and b (it doesn't matter which leg is a and which leg is b), but the most important thing is that the hypotenuse is c.

So, we now know that we have to solve for c. To solve for c, substitute the values shown in the image for a and b

\(a^2+b^2=c^2\)

\(6^2+8^2=c^2\)

\(36+64=c^2\)

\(100=c^2\)

\(\sqrt{100}=c\)

\(c=10\)

Answer: Step-by-step explanation:

f(x)=ax^2→g(x)=a(x-h)^2+k

The horizontal shift depends on the value of h. The horizontal shift is described as:  

g(x)=f(x+h) - The graph is shifted to the left h units.

g(x)=f(x−h) - The graph is shifted to the right h units.

Hence, in the question above, Horizontal Shift: Right h Units

The vertical shift depends on the value of k. The vertical shift is described as:

g(x)=f(x)+k - The graph is shifted up k units.

g(x)=f(x)−k - The graph is shifted down k units.

Therefore, in the question above, Vertical Shift: Up k Units

The description of the transformation from the graph with respect to the given graph should be explained below.

Since

\(f(x)=ax^2\)

And, \(g(x)=a(x-h)^2+k\)

Now here horizontal shift based on the value of h. The horizontal shift should be like

g(x)=f(x+h) - The graph should be shifted to the left h units.

And,

g(x)=f(x−h) - The graph should be shifted to the right h units.

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Tim owns 74 socks, the colours of which are unknown.

He does, however, have an additional pair that is white rather than black.

Therefore, it suggests that we are working with the two hues white and black.

The result of dividing the total number of socks by two is:

= 74/2

= 37 socks, two pairs each for black and white.

But let's not forget that Tim has a pair of white socks in addition to his black pair.

The total number of white socks is equal to= 37+1= 38 socks.

Total black sock pairs= 37-1=36 socks.

Last but not least, the question asks us to count the number of single socks rather than pairs.

For white then:

There will be = (38x 2) socks per pair.

= 76 socks

For Black

The individual socks will be = (36 × 2)socks

= 72 socks

We can then deduce that there are 76 individual socks for white and 72 individual socks for black.

The solution would have to be four. Despite the large number of socks in the drawer, there are only three different colours, so if you take four socks, you will undoubtedly find at least one pair that matches.

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Answer:

a

Step-by-step explanation:

Answer:

The farmer that sell the bananas for 0.80 per pound is the best price.

Step-by-step explanation:

The second farmer:

1. \(\frac{4.50}{5}\) = 0.90 cents

The first farmer:

1.\(\frac{0.80}{1}\) = 0.80

So the first farmer has a cheaper price.

Answer:

a

Step-by-step explanation:

According to the given information, the sample period should be from 2010-2020.

a) Model specification

The model specification based on the scenario above is as follows:

SDF= f(T, TI, NL)

Where: SDF= Sustainable Development Framework

T= Tourism

TI= Technological innovation

NL= National leadership

b) Justification for the selection of the dependent and independent variables model:

Dependent variable: The dependent variable in this model is Sustainable Development Framework (SDF). The model seeks to develop a framework for sustainable development that would facilitate growth, environmental and socio-cultural sustainability.

Independent variables:

The independent variables are tourism sustainability, technological innovation, and quality of leadership. These variables drive economic development. The inclusion of tourism sustainability reflects its importance in the global economy and its potential to drive growth.

The inclusion of technological innovation reflects its potential to enhance productivity and create new industries. The inclusion of national leadership reflects the role of governance in promoting sustainable development and managing negative externalities.

c) Justification for the selection of the sample period:

The sample period should be selected based on the availability of data for the variables of interest. Ideally, the period should be long enough to capture trends and patterns in the data. However, it should not be too long that the data becomes obsolete or no longer relevant.

Additionally, the period should also reflect the context and relevance of the research question. Therefore, the sample period for this study should cover the last decade to capture the trends and patterns in the data and reflect the relevance of the research question.

The sample period should be from 2010-2020.

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Step-by-step explanation:

The quotient of -256/6 represents the average rate of descent of the submarine, in feet per minute. To find this rate, we divide the total change in depth (-256 feet) by the time taken to descend (6 minutes):

-256 / 6 = -42.67...

The quotient is negative because the submarine is descending (i.e., decreasing in depth). The magnitude of the quotient is approximately 42.67 feet per minute, rounded to two decimal places.

Therefore, the correct answer is:

C. The depth of the submarine DECREASED by 42 2/3 feet per minute.

You see from the graph that when x = 0, y = 2 so the y-intercept is ( 0 , 2).

you are given points (-6 , 3) and (6 , 1). Find slope:

slope = change in y / change in x

slope = (3 - 1) / (-6 - 6)

slope = 2/-12

slope = -1/6

slope-intercept form: y = mx + b where m = slope and b = y intercept.

y = -1/6x + 2

The measure of the arc angle JA is 76 degrees.

The sum of angles in a cyclic quadrilateral is 360 degrees. The opposite angles in a cyclic quadrilateral is supplementary.

Therefore, Let's find the measure of arc angle JA.

26x + 1 = 1 / 2 (18x + 4 + 6 + 32x)

26x + 1 = 1 / 2 (50x + 10)

26x + 1 = 25x + 5

26x - 25x = 5 - 1

x = 4

Therefore,

arc angle JA = 18x + 4

arc angle JA = 18(4) + 4

arc angle JA =72 + 4

arc angle JA = 76 degrees.

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Answer:

Sergio's statement is false

Step-by-step explanation:

Cost of one pound of plum = 1.60

Total quantity of plum bought = 1

Weight of each plum = 1/4 pound

If he buys plum of $ 3.80 at the rate of $1.60 per pound, he purchases 2.375 pounds of plum

Weight of one plum = 1/4 pound, thus total number of plum purchased = 9.5

Since 0.5 pound of plum means half plum which is not possible to buy

Hence Sergio's statement is false

Answer:

I would say approximately 5.8 miles

Step-by-step explanation:

(This answer may be wrong)

Answer:

17

Step-by-step explanation:

A straight angle is 180

180 = 6z + 1 + 77 combine like terms

180 = 6z + 78  Subtract 78 from both sides

180 - 78 = 6z + 78 - 78

102 = 6z  Divide both sides by 6

17 = z

Helping in the name of Jesus.

Answer:

Step-by-step explanation:

what you have to do is

hope this helps!

Answer:

u gotta find the variable

Step-by-step explanation:

the letter is x find it by subject

A researcher should consider transforming the explanatory variable in a simple linear regression model when there is evidence of a non-linear relationship between the explanatory variable and the response variable, the presence of outliers, heteroscedasticity, or skewed data.

A researcher should consider transforming the explanatory variable in a simple linear regression model when they suspect that there is a non-linear relationship between the explanatory variable and the response variable.

Some common situations where transforming the explanatory variable may be appropriate include:

Non-linear relationships: If the scatter plot shows a curved or nonlinear relationship between the explanatory variable and the response variable, transforming the explanatory variable may help to create a more linear relationship.

Outliers: If there are outliers in the data that are having a large impact on the regression line, transforming the explanatory variable may help to reduce their influence.

Heteroscedasticity: If the variance of the residuals is not constant across the range of the explanatory variable, transforming the explanatory variable may help to stabilize the variance and improve the fit of the model.

Skewed data: If the data for the explanatory variable is skewed, transforming it may help to normalize the distribution and improve the fit of the model.

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Yes, there are experts here in data forecasting methods who can help you with the topics you've mentioned including time series (holts, holts winter), naive method, regression, acf, pacf, arima, stl method and multivariate time series.

Below are brief explanations of each of these terms:

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The equation of the line shows in the graph is,  \(y = \frac{3}{4}x +\frac{1}{2}\).

What is graph?

The collection of ordered pairs where f(x)=y exists is the graph of the function f. These pairs are Cartesian coordinates of points in two-dimensional space and so form a subset of this plane in the typical situation when x and f(x) are real integers.

The two points on the graph are (-2, -1) and (2, 2).

From these two points to find the slope of the line.

\(m = \frac{y_2-y_1}{x_2-x_1} = \frac{2-(-1)}{2-(-2)} = \frac{3}{4}\)

Now by using the slope and the point (2, 2), to find the equation of the line.

Consider,

\(y-y_1=m(x-x_1)\\y-2=\frac{3}{4}(x-2)\\y-2= \frac{3}{4}x-\frac{3}{2} \\y=\frac{3}{4}x -\frac{3}{2}+2\\ y=\frac{3}{4}x + \frac{1}{2}\)

Therefore, the equation of line shown in the graph is, \(y = \frac{3}{4}x +\frac{1}{2}\).

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We are required to find the first and second derivatives of y= (x²)/ (x³) - 4x.

The expression y = (x²)/ (x³) - 4x can be simplified to

y = 1/x - 4x.

To find the first derivative, we have to differentiate y with respect to x.

Let us find the first derivative of

y= 1/x - 4x using the chain rule of differentiation/dx

= d/dx (x⁻¹) - d/dx (4x)

Here, d/dx (x⁻¹) can be found by applying the formula

(d/dx) (xⁿ) = nxⁿ⁻¹ and

d/dx (4x) = 4.d/dx(x) = 4.

Now substituting the values,

we get,dy/dx = (-1/x²) - 4.

The first derivative is given by dy/dx = (-1/x²) - 4.

The second derivative of y is obtained by differentiating the first derivative with respect to x.

Let's do this.

d²y/dx² = d/dx [(-1/x²) - 4]

Using the rule of differentiation of the constant and the power rule of differentiation of the term x,

we get,d²y/dx² = 2/x³.

The second derivative of y is given by d²y/dx² = 2/x³.

The first derivative of the given function is -1/x² - 4, and the second derivative of the function is 2/x³.

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The element b₂₄ is the number in the second row and fourth column of the matrix, and we can see that it is equal to 10.

For a matrix M, the element Mₐₙ is the element in the a-th row and in the n-th column.

In this case we want to find b₂₄, so you need to look at the element that is in the second row (counting from the top) and in the fourth column (counting from the right) that element is a 10, then we can conclude:

b₂₄ = 10

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c. hope it's help you

The quadratic equation has two real solutions because the value of D is positive and greater than zero or D > 0 option (B) is correct.

Any equation of the form \(\rm ax^2+bx+c=0\) where x is variable and a, b, and c are any real numbers where a ≠ 0 is called a quadratic equation.

As we know, the formula for the roots of the quadratic equation is given by:

\(\rm x = \dfrac{-b \pm\sqrt{b^2-4ac}}{2a}\)

We have a quadratic equation:

y = x² - 11x + 7

As we know, the discriminant formula is used to find the nature of the roots.

The  discriminant formula is:

D = b² - 4ac

The standard quadratic equation is:

y = ax² + bx + c

a = 1, b = -11, and c = 7

Plug the values in the formula:

D = (-11)² - 4(1)(7)

D = 121 - 28

D = 93

As the D is positive and greater than zero or D > 0

Thus, the quadratic equation has two real solutions because the value of D is positive and greater than zero or D > 0 option (B) is correct.

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Answer:

I mean I think there are like a ton of answers to this,

50,59

51,58

52,57

53,56

54,55,

Step-by-step explanation:

Answer:

\(x = 51^o\)

Step-by-step explanation:

Given

Intersecting lines

Required

Find x

To do this, we make use of:

\(x + 23^o + 2x + 4^o = 180^o\) --- angle on a straight line

Collect like terms

\(x + 2x = 180^o - 4^o - 23^o\)

\(3x = 153^o\)

Divide both sides by 3

\(x = 51^o\)