Consider the solid obtained by rotating the region bounded by the given curves about the x-axis. y = 2/7 x^2, y = 9/7 - x^2 Find the volume V of this solid. V = Sketch the region, the solid, and a typical disk or washer. (Do this on paper. Your instructor may ask you to turn in this work.)

In statistics, the chi-square critical value is the threshold value that is used to determine whether the calculated chi-square test statistic is significant or not.

The chi-square critical value is determined based on the significance level (also known as alpha), which is the probability of rejecting the null hypothesis when it is true. The significance level is typically set at 0.05 or 0.01.

The chi-square critical value can be found using a chi-square distribution table or a statistical software program. The critical value is determined based on the degrees of freedom (df), which is the number of categories minus one.

Once the chi-square critical value is determined, it can be compared to the calculated chi-square test statistic to determine whether the test is statistically significant or not. If the calculated chi-square test statistic is larger than the critical value, we can reject the null hypothesis and conclude that there is a significant association between the variables.

Learn more about chi-square critical value here

brainly.com/question/16749509

#SPJ4

The inequalities representing the two lines are y ≤ 3x + 8 and y < - 2x - 8.

Inequality is a relation that compares two numbers or other mathematical expressions in an unequal way.

The symbol a < b indicates that a is smaller than b.

When a > b is used, it indicates that a is bigger than b.

a is less than or equal to b when a notation like a ≤ b.

a is bigger or equal value of an is indicated by the notation a ≥ b.

The two lines can be obtained by identifying the points.

(0, - 8) and (1, - 10) are the points of the non-dotted line.

So, m = (- 10 + 8)/(1 - 0).

m = - 2.

Now, - 8 = 0(-2) + b.

b = - 8.

y = - 2x - 8.

The points for the dotted line are, (0, 8) and (1, 11).

m = (11 - 8)/(1 - 0).

m = 3

8 = 3(0) + b.

b = 8.

y = 3x + 8.

The dotted line is y ≤ 3x + 8 and the non-dotted line is y < - 2x - 8.

learn more about inequalities here :

https://brainly.com/question/30231190

#SPJ1

Here  is a scatter plot that compares hits to at bats for players on a baseball team, as the number of bats increase, the number of hits increases.

A scatter plot is also known as a scatter chart, scattergram, or XY graph. The scatter diagram plots numerical data pairings, one variable on each axis, to demonstrate their connection. Today everyone is wondering when to utilise a scatter plot.

Scatter plots are used in the following scenarios.

When we have numerical data that is paired

When there are several dependent variable values for a single independent variable value

In some instances, such as finding probable root causes of issues, evaluating if two items that appear to be connected both arise with the same precise reason, and so on.

The points will fall along a line or curve if the variables are correlated. The closer the points are to the line, the better the connection. One of the seven key quality tools is this cause examination tool.

Learn more about Scatter plot:

https://brainly.com/question/17710996

#SPJ4

Answer:

about 30.9 feet

Step-by-step explanation:

Using the Pythagorean Theorem:

[tex] {l}^{2} + {10}^{2} = {32.5}^{2} [/tex]

[tex] {l}^{2} = 956.25[/tex]

[tex]l = 30.9[/tex]

The weight of gallon of water is 8.345 pounds according to density of water.

The gallon is a unit of volume and we need to find the weight of one gallon of water. So, the weight and volume are related to each other by the formula -

Density = mass/volume

Now, we know the volume and need the density of water in pounds per gallon.

The density of water is 8.345 pounds per gallon.

So, keeping the values in formula

Mass = density × volume

Mass = 8.345 × 1

Performing multiplication on Right Hand Side of the equation

Mass = 8.345 pounds

The weight of water is 8.345 pounds.

Learn more about volume -

https://brainly.com/question/463363

#SPJ4

The number of seconds that the ball isat its maximum height is 5 seconds.

It should be noted that to find the time at which the softball is at its maximum height, we need to find the vertex of the parabolic equation h = -4t^2 + 40t + 5.5.

The vertex of a parabola of the form h = at^2 + bt + c is given by the formula t = -b / (2a).

In this case, a = -4 and b = 40, so the time at which the ball reaches its maximum height is:

t = -b / (2a) = -40 / (2*(-4)) = 5 seconds.

Therefore, the ball is at its maximum height after 5 seconds.

Learn more about height on:

https://brainly.com/question/28122539

#SPJ1

Two softball players are practicing catching fly balls. One player throws a ball to the other and the path of the softball is modeled by the equation h = -4t2 +40t +5.5, where h is the height (in feet) of the softball and is the time in seconds that have elapsed. b

After how many seconds is the ball at its maximum height?

The requried slope of the given linear representation is -0.67.

The slope of the line is a tangent angle made by line with horizontal. i.e. m =tanx where x in degrees.

m = (y₂ - y₁) /  (x₂ - x₁)

Here,

From the figure,
Locate two points, on the line
(-3, -3) and (3, -5)

m = (y₂ - y₁) /  (x₂ - x₁)

Substitute the value in the above expression,
m = -5 + 3 / 3 + 3
m = -2/6
m = -1/3
m = -0.67

Thus, the requried slope of the given linear representation is -0.67.

Learn more about slopes here:
https://brainly.com/question/3605446

#SPJ9

The area of the lawn that is watered by the sprinkler is approximately 78.5 square feet.

To determine the area of the lawn that is watered by a rotating sprinkler, we need to calculate the area of the circle that the sprinkler covers. The radius of the sprinkler is given as 5 feet, which means that the diameter of the circle it covers is 10 feet.

To calculate the area of the circle, we can use the formula A = πr^2, where A is the area and r is the radius.

A = πr^2 = π(5^2) = 78.5 square feet (rounded to one decimal place)

This means that any plants or grass within this area should receive water from the sprinkler, assuming it is functioning properly and has sufficient water pressure.

To learn more about area click on,

https://brainly.com/question/30792632

#SPJ4

The scale factor of the dilation that takes P to Q is,

⇒ 4/5

Division method is used to distributing a group of things into equal parts. Division is just opposite of multiplications. For example, dividing 20 by 2 means splitting 20 into 2 equal groups of 10.

Given that;

⇒ Quadrilateral P and Q are similar.

Hence, The scale factor of the dilation that takes P to Q is,

⇒ 2 / 2.5

⇒ 20 / 25

⇒ 4/5

Thus, The scale factor of the dilation that takes P to Q is, 4/5.

Learn more about the divide visit:

https://brainly.com/question/28119824

#SPJ1

Answer:

x = 108

Step-by-step explanation:

To solve the equation x/6 - 6 = x/18 + 6, we first need to get rid of the fractions by multiplying both sides by the least common multiple of the denominators, which in this case is 18.

So, we have:

18(x/6 - 6) = 18(x/18 + 6)

Simplifying this, we get:

3x - 108 = x + 108

Next, we want to isolate the variable x on one side of the equation, so we'll subtract x from both sides:

2x - 108 = 108

Finally, we'll add 108 to both sides to get:

2x = 216

Dividing both sides by 2, we get:

x = 108

Therefore, the value of x that makes the equation true is 108.

Step-by-step explanation:

4³ = 4 × 4 × 4

4³ = 16 × 4

4³ = 64

Answer: 4³ = 4 × 4 × 44³ = 16 × 44³ = 64

Step-by-step explanation: hope this helps0^0

The binary conversion of 2 is 10.

In binary, there are only two possible digits, 0 and 1. Each digit in a binary number represents a power of 2, with the rightmost digit representing 2^0 (which is 1), the second digit representing 2^1 (which is 2), the third digit representing 2^2 (which is 4), and so on.

So in the binary number 10, the rightmost digit represents 2^0, which is 1, and the second digit represents 2^1, which is 2. Adding these two powers of 2 together gives a total value of 2 in binary.

To convert a decimal number to binary, you can divide the number by 2 and record the remainder at each step until the quotient is 0. Then, the binary number is simply the remainders read in reverse order. In this case, 2 divided by 2 is 1 with a remainder of 0, so the first digit of the binary number is 0. 1 divided by 2 is 0 with a remainder of 1, so the second digit of the binary number is 1. Therefore, the binary conversion of 2 is 10.

To know more on binary conversion

https://brainly.com/question/29590895

#SPJ4

Answer:-7

Step-by-step explanation:

1)

The area of the electronic board on the scale drawing is 1800 cm².

2)

Using the scale factor 5:1.

Length:

1 = 50

5 = 250 cm

Width:

1 = 36 cm

5 = 180 cm

3)

The area of the actual electronic board is 45000 cm²

A scale factor is defined as the ratio between the scale of a given original object and a new object,

We have,

Scale factor = 5 : 1

Now,

Electronic board dimensions:

Length = 50 cm

Width = 36 cm

Now,

Area of the electronic board on the scale drawing.

= length x width

= 50 x 36

= 1800 cm²

Now,

Actual dimensions:

Length = 250 cm _____(1)

Width = 180 cm _____(2)

Using the scale factor 5:1.

1 = 50

5 = 250 cm

And,

1 = 36 cm

5 = 180 cm

Area of the actual electronic board.

From (1) and (2)

= 250 x 180

= 45000 cm²

Thus,

The area of the electronic board on the scale drawing is 1800 cm².

The area of the actual electronic board is 45000 cm²

Learn more about scale factors here:

https://brainly.com/question/20759556

#SPJ1

The following statements are true:

Line AB and line CG are parallel.

Line CG and line RS are perpendicular.

Line segment CG lies in plane X.

What is a line segment?

A line segment is a section of a straight line that is enclosed by two clearly defined endpoints and contains every point on the line located within. The Euclidean distance between two ends of a line segment determines its length.

Here, we have

Given: Planes X and Y intersect at a right angle. Line A B and Line C G lie in plane X and do not intersect. Line R S lies in plane Y.

A) Line AB and Line CG are parallel: As both lines, AB and CG lie in plane X. Thus both are parallel and option A is the correct option.

B) Line AB and Line RS are parallel: As a line, AB lies in plane X and line RS lies in plane Y. Thus both are perpendicular and not parallel. Option B is the incorrect option.

C)Line CG and Line RS are perpendiculars: As line CG lies in plane x and line RS lies in plane Y. Thus both are perpendicular. Option C is the correct option.

D) Line AB and Line RS must intersect: line RS passes from the middle of plane Y and line AB passes from the left of plane X center. Thus they do not intersect each other. Option D is the incorrect option.

E) Line segment CG lies in plane X: As shown in the diagram, line CG lies in plane X. Thus option E is the correct option.

F) Line segment RS lies in plane X: As shown in the diagram, and the line lies RS in plane Y. Thus option F is the incorrect option.

Hence, The following statements are true:

Line AB and line CG are parallel.

Line CG and line RS are perpendicular.

Line segment CG lies in plane X.

To learn more about the line segment from the given link

https://brainly.com/question/280216

#SPJ1

A ) The balance would be approximately $5562.35 when the interest is compounded quarterly.

B) The balance would be approximately $5565.09 when the interest is compounded monthly.

Annual interest rate refers to the interest rate over a period of one year with the assumption that the interest is compounded every year.

a) If the interest is compounded quarterly, we can use the formula:

A = P(1 + r/n)^(n*t)

where

In this case, P = $5500, r = 0.01356 (1.356% as a decimal), n = 4 (since interest is compounded quarterly), and t = 1 (since we are calculating the balance after one year).

Substituting these values into the formula, we get:

A = $5500(1 + 0.01356/4)^(4*1) ≈ $5562.35

So the balance would be approximately $5562.35 when the interest is compounded quarterly.

b) If the interest is compounded monthly, we can use the same formula, but with n = 12 (since interest is compounded monthly):

A = $5500(1 + 0.01356/12)^(12*1) ≈ $5565.09

So the balance would be approximately $5565.09 when the interest is compounded monthly.

Learn more about annual interest here : brainly.com/question/19086801

#SPJ1

Answer: -5

h(0) = -5(0) - 5

h(0) = -5

False. The Six Sigma DMAIC approach is a problem-solving methodology used to improve processes and reduce defects, but it is not the only tool available.

Sigma is a statistical measure of dispersion, which is used to measure the variability or spread of a given data set. It is calculated by taking the square root of the variance, which is the average of the squared differences from the mean. Sigma is commonly used in data analysis and is used to identify outliers and other patterns in data sets.

Depending on the nature of the problem, other problem-solving techniques may be more appropriate. For example, if the goal is to improve customer service, a method such as Lean Six Sigma, which focuses on customer value, may be more effective. Similarly, if the goal is to create new products or services, a design thinking approach could be used. In any case, it is important to assess the situation and choose the best course of action for the specific problem.

To know more about data set click-
https://brainly.com/question/14592520
#SPJ1

The solution to the system of equation is x = -2 and y = -3.

System of equation can be solved using different method such as elimination method, graphical method and substitution method,

here we have,

Therefore, let's solve the system of equation by using substitution method.

-2x+ 7y = 15

6y=x

substitute the value of x in equation(i)

-2* 6y+ 7y = 15

or, -12y + 7y = 15

or, -5y = 15

or, y = -3

so, we get,

x = 6/ -3

or, x = -2

Hence, The solution to the system of equation is x = -2 and y = -3.

learn more on system of equations here:

brainly.com/question/25535303

#SPJ1

Using the triangle inequality theorem, the combination of side lengths, in cm, that could make a triangle for the quilt are:

12, 35, 37

16, 30, 34

20, 21, 29

The Triangle Inequality Theorem is a fundamental theorem in geometry that states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side.

More formally, given a triangle with sides a, b, and c, the Triangle Inequality Theorem states:

a + b > c

b + c > a

a + c > b

If any of these inequalities is not true, then the three sides cannot form a triangle.

Using the Triangle Inequality Theorem, we can check which of these sets of numbers can form the sides of a triangle:

For the first set of numbers (12, 35, 37):

12 + 35 > 37 (True)

35 + 37 > 12 (True)

12 + 37 > 35 (True)

Therefore, the numbers 12, 35, and 37 can form the sides of a triangle.

For the second set of numbers (16, 30, 34):

16 + 30 > 34 (True)

30 + 34 > 16 (True)

16 + 34 > 30 (True)

Therefore, the numbers 16, 30, and 34 can form the sides of a triangle.

For the third set of numbers (18, 24, 42):

18 + 24 > 42 (False)

24 + 42 > 18 (True)

18 + 42 > 24 (True)

Therefore, the numbers 18, 24, and 42 cannot form the sides of a triangle.

For the fourth set of numbers (20, 21, 29):

20 + 21 > 29 (True)

21 + 29 > 20 (True)

20 + 29 > 21 (True)

Therefore, the numbers 20, 21, and 29 can form the sides of a triangle.

Learn more about the triangle inequality theorem on:

https://brainly.com/question/309896

#SPJ1

On factorizing each equation we get

a) x² + 6x + 9 =  (x + 3) (x + 3)  

b) x² - 6x + 8 = (x - 4) (x - 2)  

c) x² - 4x - 32 = (x - 8) (x + 4)  

d) x² + x - 42 = (x + 7) (x - 6)  

Factorization is the process of finding the factors of an expression or number. In algebra, factorization involves expressing an algebraic expression as a product of its factors.  

To factorize the following split the middle term and group out the common factors as given below.

Here we have four equations that can be factorized as follows

a) x² + 6x + 9  

=> x² +3x + 3x + 9         [ Split middles term ]

=> x(x + 3) +3(x + 3)      [ Grouping the terms ]

=> (x + 3) (x + 3)  

∴  a) x² + 6x + 9 =  (x + 3) (x + 3)  

b) x² - 6x + 8

=> x² - 4x - 2x + 8               [ Split middles term ]

=> x(x - 4) -2(x - 4)              [ Grouping the terms ]  

=> (x - 4) (x - 2)

∴ x² - 6x + 8 = (x - 4) (x - 2)  

c) x² - 4x - 32  

=> x² - 8x + 4x - 32         [ Split middles term ]  

=> x(x - 8) + 4(x - 8)         [ Grouping the terms ]    

=> (x - 8) (x + 4)

∴ x² - 4x - 32 = (x - 8) (x + 4)  

d) x² + x - 42  

=> x² + 7x - 6x - 42             [ Split middles term ]  

=> x(x + 7) - 6(x + 7)            [ Grouping the terms ]    

=> (x + 7) (x - 6)

∴ x² + x - 42 = (x + 7) (x - 6)  

Therefore,

On factorizing each equation we get

a) x² + 6x + 9 =  (x + 3) (x + 3)  

b) x² - 6x + 8 = (x - 4) (x - 2)  

c) x² - 4x - 32 = (x - 8) (x + 4)  

d) x² + x - 42 = (x + 7) (x - 6)  

Learn more bout Factorization at

https://brainly.com/question/29346831

#SPJ1

107+73 = 180

107-73 = 34

========================================================

Explanation

Rule: Supplementary angles always add to 180 degrees.

This is our system of equations.

[tex]\begin{cases}x+y = 180\\x-y = 34\\\end{cases}[/tex]

Add the equations straight down.

After the y terms go away, we have this new equation: 2x = 214 which solves to x = 107 after dividing both sides by 2.

Then use this x value to find y

x+y = 180

107+y = 180

y = 180-107

y = 73

Or you could say

x-y = 34

107-y = 34

-y = 34-107

-y = -73

y = 73

Either way, we get the same y value each time. This helps confirm the answer.

Another way to confirm the answer is shown in the next section below.

---------------------

Check:

x+y = 180

107+73 = 180

180 = 180 .... confirms the 1st equation

x-y = 34

107-73 = 34

34 = 34 ... the other equation is confirmed.

In short,

Never. Correlation does not imply causation. A correlation coefficient based on an observational study can only be used to suggest a relationship between two variables, but it cannot be used to support a claim of cause and effect.

Correlation is a measure of the relationship between two variables. It is used to measure how two variables move together. A correlation coefficient based on an observational study can only be used to suggest a relationship between two variables, but it cannot be used to support a claim of cause and effect. This is because correlation does not imply causation. A correlation coefficient close to -1 or +1 is an indication of a strong linear relationship between the two variables, but this does not necessarily imply a cause-and-effect relationship. Additionally, even if the scatterplot of the data has little vertical variation, this does not guarantee a cause-and-effect relationship. In summary, correlation coefficients based on observational studies can never be used to support a claim of cause and effect.

Learn more about correlation here

https://brainly.com/question/28898177

#SPJ4

Answer:

4

Step-by-step explanation:

4

The perimeter of the rectangle, in terms of x, is [tex]9x + 4 + 2/(2x+1).[/tex]

What is area of a rectangle?

The formula for the area of a rectangle is multiply length x width.

We know that the area of a rectangle is equal to the product of its length and b. In this case, the area is given by the expression [tex]2x^2+5x+2[/tex], and one side has a length of (2x+1) units.

To find the width of the rectangle, we can divide the area by the length:

Width = Area / Length

Width = ([tex]2x^2+5x+2) / (2x+1)[/tex]

The perimeter of the rectangle is the sum of the lengths of all four sides. Since we know one side has a length of (2x+1), the other side must have a length of:

Width = [tex](2x^2+5x+2) / (2x+1)[/tex]

Other side = Area / Length = ([tex]2x^2+5x+2) / (2x+1)[/tex]

Therefore, the perimeter of the rectangle is:

Perimeter = 2(Length + Width)

= [tex]2[(2x+1) + (2x^2+5x+2)/(2x+1)][/tex]

Simplifying this expression, we get:

Perimeter = [tex]4x + 2 + 5x + 2 + 2/(2x+1)[/tex]

                [tex]= 9x + 4 + 2/(2x+1)[/tex]

So the perimeter of the rectangle, in terms of x, is   [tex]9x + 4 + 2/(2x+1).[/tex]

To know more about area of a rectangle visit,

https://brainly.com/question/25292087

#SPJ1