Assume that a sample is used to estimate a population proportion p. Find the margin of error M.E. that corresponds to a sample of size 333 with 69.1% successes at a confidence level of 80%. M.E. = Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places. Round final answer to one decimal place

Answer:

56.52mm

Step-by-step explanation:

first we need to find the circumference of the wheel, which equals 2*pi*r

then we divide the circumference by 25 since the wheel is split into 25 arcs by the 25 spokes, so our answer is:

2(3.14)(225)/(25) = 56.52mm

Answer:  x ≥ 4.50

Because the cost is at least $4.50 per pound

Answer:

second one

Step-by-step explanation:

Answer:

6,250

Step-by-step explanation:

explanations is in photo

Complementary angles are two angles that add up to 90 degrees and are used in geometry to describe the relationships between angles

A right angle is an angle that measures exactly 90 degrees. In other words, complementary angles are two angles whose sum is equal to 90 degrees.

When two angles add up to 90 degrees, it is called complementary angles. Complementary angles are angles that together form a right angle.

In mathematics, complementary angles are commonly used in geometry to describe the relationships between angles in a figure.

For example, if you have an angle that measures 50 degrees, the complement of that angle would be

=> 90-50 = 40 degrees.

So, the two angles would be complementary because their sum is 90 degrees.

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Answer:

Difference = 480.9 in³

Step-by-step explanation:

Given

Cylinder;

Height, h = 3¾ inches

Radius, r₁ = 6 inches

Sphere

Radius, r₂ = 6 inches

The volume of a cylinder is calculated as thus

Volume, V₁ = πr₁²h

The volume of a sphere is calculated as this

Volume, V₂ = 4/3 πr₂³

Calculating the volume of the cylinder

V₁ = πr₁²h becomes

V₁ = π * 6² * 3¾

V₁ = π * 36 * 3¾

V₁ = π * 36 * 15/4

V₁ = π * 540/4

V₁ = π * 135

V₁ = 135π in³

Calculating the volume of the sphere

V₂ = 4/3 πr₂³ becomes

V₂ = 4/3 * π * 6³

V₂ = 4/3 * π * 216

V₂ = 864/3 * π

V₂ = 288π in³

The difference between the volume is calculated as thus.

Difference = V₂ - V₁

Difference = 288π - 135π

Difference = 153π

Take π as 22/7

Difference = 153 * 22/7

Difference = 480.9 in³ (Approximated)

Answer:

A

Step-by-step explanation:

The answer is 0.6^(x)-2. Answered by Gauthmath

From the graph, the equation that's is represented is A. 0.6x - 2.

From the equation, on the coordinate plane, the curve opens up and to the right. It crosses the x-axis at (negative 1.5, 0) and then crosses the y-axis at (0, negative 1).

Here, based on the family the graph below belongs to, the equation represented is the first equation which is 0.6x - 2.

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Answer:

Step-by-step explanation:

Since the length of both legs of the right angle triangle are given, we would determine the hypotenuse, h by applying Pythagoras theorem which is expressed as

Hypotenuse² = one leg² + other leg²

Therefore,

h² = (3a)³ + (4a)³

h² = 27a³ + 64a³

h² = 91a³

Taking square root of both sides,

h = √91a³

The formula for determining the perimeter of a triangle is expressed as

Perimeter = a + b + c

a, b and c are the side length of the triangle. Therefore, the expression for the perimeter of the right angle triangle is

√91a³ + (3a)³ + (4a)³

= √91a³ + 91a³

9514 1404 393

Answer:

  x = 25/9

Step-by-step explanation:

  3(x-2)/4 + 3(x-3)/8 = 1/2 . . . . given

  6(x -2) +3(x -3) = 4 . . . . . . . . multiply by 8

  6x -12 +3x -9 = 4 . . . . . . . . . eliminate parentheses

  9x -21 = 4 . . . . . . . . . . . . . . . collect terms

  9x = 25 . . . . . . . . . . . . . . . .  add 21

  x = 25/9 . . . . . . . . . . . . . .  divide by 9

Answer:

I got =

\(2 \ \frac{7}{9} \)

Step-by-step explanation:

\( \frac{3(x - 2)}{4} + \frac{3(x - 3)}{8} = \frac{1}{2} \)

\(6x - 12 + 3x - 9 = 4 \\ 9x - 21 = 4 \\ 9x = 25 \\ x = \frac{25}{9} = 2 \ \frac{7}{9} \)

The measure of angle n is 73°, the measure of angle m is 51° and the line p measures 24 cm.

The midpoint theorem states that the line segment joining the midpoints of any two sides of a triangle is parallel to the third side and equal to half of the length of the third side.

From the given figure, n is the midpoint of one side of the quadrilateral and m is the midpoint of other side of the quadrilateral.

Pair of opposite sides are parallel

Since, m and n are midpoints on two sides of quadrilateral, so the line passes through the midpoints is parallel to other two sides

Then, ∠n =73° and ∠m =51°

p = 1/2 ×48

⇒ p =24 cm

Therefore, the length of line p is 24 cm.

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melody had 120 stamps.

and she gave Jeremy 30 stamps .

so she had 90 stamps now.

after she gave Jeremy 30 stamps,she had twice as much as him.

so 90 is 45+45 .other way 45 is half of 90.

so Jeremy had 45 stamps now.

they have altogether 90+45=135 stamps.

the answer is 135

By creating and solving an algebraic equation, we learn that Jeremy started with 60 stamps and Melody started with 180 stamps. Therefore, they originally had 240 stamps combined.

We'll use algebra to solve this. Let's let Jeremy's number of stamps be represented by J. According to the information, Melody had 120 more stamps than Jeremy before she gave him 30, so she had J + 120 stamps. After transferring the 30 stamps, she has J + 120 - 30 stamps, which simplifies to J + 90 stamps. According to the problem, this amount is twice the amount Jeremy has after receiving the 30 stamps (J + 30). So, we can set up this equation: 2(J + 30) = J + 90.

Solving this equation gives J = 60. That means Jeremy started with 60 stamps. Therefore, Melody started with 60 + 120 = 180 stamps. The total number of stamps both had originally is 60 + 180 = 240 stamps.

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The event for which the probability can be calculated from the two events given is event B.

Given that:

Mean = 2.5 children per family

Standard deviation = 1.3 children per family

Here, for event B, the sample size is going to take 40.

So, the distribution can be formulated to be approximately normal distribution since the sample size is 40 which is greater than 30.

So, the mean is the same which is 2.5.

The standard deviation can be calculated as 1.3/√40.

So, event B can be calculated for the probability.

Hence the event is event B.

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The complete question is given below:

The distribution of the number of children per family in the United States is strongly skewed right with a mean of 2.5 children per family and a standard deviation of 1.3 children per family.

Event A: Randomly selecting a family from the United States that has 3 or more children.

Event B: Randomly selecting 40 families from the United States and finding an average of 3 or more children.

The probability of one of the two events can be calculated even though the distribution of the population is strongly skewed right. For which event can the probability be calculated?

Should there be a global effort to sharply reduce the cutting and burning of old-growth forests?

Yes, there should be a global effort to sharply reduce the cutting and burning of old-growth forests. Old-growth forests are vital ecosystems that provide numerous environmental, social, and economic benefits. They are home to diverse species, including endangered ones, and play a crucial role in carbon sequestration, mitigating climate change, and preserving biodiversity.

Cutting and burning old-growth forests contribute to deforestation, habitat loss, and greenhouse gas emissions. It disrupts ecosystems, threatens species survival, and exacerbates climate change. Protecting old-growth forests is essential for maintaining ecological balance and promoting sustainable development.

Numerous references and scientific studies support the importance of preserving old-growth forests. Some relevant sources include:

"The Importance of Old-Growth Forests" by the World Wildlife Fund (WWF): https://www.worldwildlife.org/initiatives/old-growth-forests

"Old-growth forest protection: A key tool in fighting climate change" by The Nature Conservancy: https://www.nature.org/en-us/what-we-do/our-insights/perspectives/old-growth-forest-protection-fighting-climate-change/

"Old-Growth Forests: Function, Fate and Value" by the United Nations Environment Programme (UNEP): https://www.unep-wcmc.org/resources-and-data/old-growth-forests-function-fate-and-value

These resources provide comprehensive information on the importance of old-growth forest conservation and the need for global efforts to reduce cutting and burning practices.

The question provided seems incomplete and unclear. It mentions a relationship between letters of the alphabet and percentages but does not provide any context or options to choose from. Please provide more information or clarify the question, and I'll be glad to assist you further.

Answer:

80

Step-by-step explanation:

The solution of expression is,

⇒ x (x + 1) / (x + 3)²

We haver to given that,

An expression to solve,

⇒ x / (x + 3) / 1 / (x + 1)/ (x + 3)

We can simplify it as,

⇒ x / (x + 3) / 1 / (x + 1) / (x + 3)

⇒ x / (x + 3) ÷ 1 / (x + 1) ÷ (x + 3)

⇒ x / (x + 3) × (x + 1) /1 × 1/(x + 3)

⇒ x (x + 1) / (x + 3)²

Therefore, The solution of expression is,

⇒ x (x + 1) / (x + 3)²

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The domain of f is the range of f-1, and the domain of f −1 is the range of f.

We can say that if we have a function f with domain X and range Y, then its inverse function f-1 will have domain Y and range X. This is because the roles of the input and output variables are reversed in the inverse function, so the domain and range of the original function become the range and domain of the inverse function, respectively.

It's important to note that not all functions have an inverse, and those that do may have restrictions on their domain and range to ensure the existence of a unique inverse.

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Answer:

Your number is 12

12/2-4

6-4

2

Answer:

y=-176/x

y=176/9

Step-by-step explanation:

\(y = \frac{k}{x} \\ - 11 = \frac{k}{16} \\ k = - 176 \\ y = \frac{ - 176}{x} \\ y = \frac{ -176}{ -9} = 19 \frac{5}{9} \)

Answer:

b.

Use special characters like italics and underlining

Step-by-step explanation:

i took the test

When it comes to scannable resumes, it is not recommended that you b. Use special characters like italics and underlining.

Because they are to be scannable, they are not to have complicated characters that might be unscannable such as special characters and underlining.

They should be printed on white paper using black ink only and should have a format that is best described as being neat and clean.

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The value of the angle U in the triangle is 92.10 degrees.

The angle U in the triangle can be found using cosine rule as follows:

Let's use cosine formula to find the angle U

c² = a² + b² - 2ab cos C

Hence,

Therefore,

a = 58.8

b = 38.4

c = 71.4

Hence,

71.4²  = 58.8² +  38.4² - 2(58.8)(38.4) cos U

5097.96 = 3457.44 + 1474.56 - 4515.84 cos U

5097.96 - 4932 =  - 4515.84 cos U

165.96 = - 4515.84 cos U

divide both sides by - 4515.84

cos U = 165.96 / - 4515.84

cos U = - 0.03675063775

U = cos⁻¹ - 0.03675063775

U = 92.1032274244

Therefore,

U = 92.10 degrees

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Answer:

Option 2: \(x^{\frac{2}{3}}\)

Step-by-step explanation:

\(\frac{\sqrt[4]{x^3}}{x^{\frac{1}{12}}}\)

Simplify:

\(\frac{x^{3\times \frac{1}{4}}}{x^{\frac{1}{12}} }\)

Multiply:

\(\frac{x^{\frac{3}{4}}}{x^{\frac{1}{12}}}\)

Subtract the exponents:

\(x^{\frac{3}{4}-\frac{1}{12}}=x^{\frac{2}{3}}\)

ERROR. PLEASE CONTACT BRAINLY INC.

Step-by-step explanation:

take any two points of the line and find .

The given statement "the instantaneous contacts of a timer do not have a time-delay period associated with them" is TRUE because they make or break the circuit as soon as the timer reaches a certain point in time.

We have,

Instantaneous contacts are designed to change their state immediately when the timer coil is energized or de-energized, providing a direct and immediate response to the control signal.

In contrast, time-delay contacts are specifically designed to introduce a delay between the activation or deactivation of the timer coil and the change in state of the contacts, providing a controlled and adjustable time interval for specific applications.

In summary, instantaneous contacts offer a quick response with no time-delay, while time-delay contacts are used for applications requiring a specific time period before changing their state.

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complete question:

The instantaneous contacts of a timer have no time-delay period associated with them. true/false

Answer:

6÷ (-2) = (-3)

Step-by-step explanation:

i used a calculator

but good question

Answer:

yes because radius makes 90 degree with it. using Pythagoras theorem, it is seen that 5^2 = 3^2 + 4^2

To find the volume of the solid generated by rotating the region enclosed by the line xy = 1 and the coordinate axes about the line y = -1, we can use the method of cylindrical shells.

First, we need to rewrite the equation of the curve in terms of y:

x = 1/y

Next, we can sketch the region and the axis of rotation to see that the height of each cylindrical shell is equal to the distance between the line y = -1 and the curve x = 1/y. This distance can be expressed as:

h = 1 + y

The radius of each shell is equal to x, which is:

r = 1/y

The volume of each cylindrical shell is:

dV = 2πrh*dx

= 2π(1+y)(1/y)dy

= 2π(dy/y + dy)

Integrating this expression from y = 1 to y = infinity gives the volume of the solid:

V = ∫1^∞ 2π(dy/y + dy)

= 2π(ln y + y)|_1^∞

= infinity

Since the integral diverges, the volume of the solid is infinite.

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The purpose of statistically analyzing study data is to summarize and make sense of the data in order to draw conclusions and make informed decisions.

Statistical analysis allows researchers to identify patterns and relationships within the data, test hypotheses, and make predictions. By using statistical methods, researchers can more accurately interpret the results of a study and make more reliable conclusions.

Additionally, statistical analysis can help researchers determine the significance of their findings and assess the generalizability of their results to the larger population. Overall, statistical analysis is a crucial step in the research process and is essential for making informed and accurate conclusions about study data.

It is a method for removing bias from evaluating data by employing numerical analysis. This technique is useful for collecting the interpretations of research, developing statistical models, and planning surveys and studies.

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The length of line segment AB is approximately 69.02.

To find the length of the line segment AB, we can use the midpoint formula. The midpoint of a line segment is the average of the x-coordinates and the average of the y-coordinates of its endpoints.

Given that the midpoint M is (-7/2, -8) and the endpoints A(2x, y-1) and B(y+3, 3x+1), we can set up the following equations:

Midpoint x-coordinate:

(-7/2) = (2x + y + 3) / 2

Midpoint y-coordinate:

-8 = (y - 1 + 3x + 1) / 2

Solving the first equation for y, we get:

y = -4x - 10

Substituting this value of y into the second equation, we have:

-8 = (-4x - 10 - 1 + 3x + 1) / 2

-8 = (-x - 10) / 2

-16 = -x - 10

x = 6

Substituting the value of x back into the equation for y, we get:

y = -4(6) - 10

y = -34

Therefore, the coordinates of point A are A(2(6), -34 - 1) = A(12, -35), and the coordinates of point B are B(-34 + 3, 3(6) + 1) = B(-31, 19).

To find the length of line segment AB, we can use the distance formula:

Length = √[(x2 - x1)^2 + (y2 - y1)^2]

= √[(-31 - 12)^2 + (19 - (-35))^2]

= √[(-43)^2 + (54)^2]

= √[1849 + 2916]

= √4765

≈ 69.02

Therefore, the length of line segment AB is approximately 69.02.

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Answer:

g(-3) + f(-3) = -162

(f - g)(2) = -49

Step-by-step explanation:

f(x) = -4x + 15

g(x) = 7x³

1)

g(-3) + f(-3)

Evaluate g(-3) and f(-3).

g(-3) = 7(-3)³, f(-3) = -4(-3) + 15

7(-3)³ + -4(-3) + 15

Evaluate (-3) to the third power.

7(-27) + -4(-3) + 15

Multiply.

-189 + 12 + 15

Add.

-177 + 15

-162.

2)

(f - g)(2) = f(2) - g(2)

Evaluate f(2) and g(2)

f(2) = -4(2) + 15

f(2) = -8 + 15

f(2) = 7

g(2) = 7(2)³

g(2) = 7(8)

g(2) = 56

Now subtract the result of g(2) from the result of f(2)

(f - g)(2) = 7 - 56

(f - g)(2) = -49.