Find the surface area of the part of the circular paraboloid z=x^2+y^2 that lies inside the cylinder x^2 +y^2=25

Answer:

3 ft^2/hour

Step-by-step explanation:

We are looking for a finished unit of (square feet)/hour.

We are given (3/4) ft^2 and a time of (1/4) hour.

Divide the area by the time:  [(3/4)ft^2]/[(1/4)hour]  This produces a unit of ft^2/hour.

Bring the unit out and then simplify the ratio:

   (3/4)/(1/4)  ft^2/hour

   (3/4)*(4/1) ft^2/hour

    The 4's cancel, leaving (3/1) or 3 ft^2/hour

Answer:

-x -2

Step-by-step explanation:

1- Apply the Distributive Property

2- Calculate the product or quotient

3- Determine the sign

4- Reorder and gather like terms

   Collect coefficients of like terms

   Calculate the sum or difference

Answer:

50*40 = 2000 sq feet

75*50 = 3750 sq feet

Step-by-step explanation:

None of the given answers are correct, The value of  128{1/7} will be a fraction number.

The term "operation" in mathematics refers to the process of computing a value utilizing operands and a math operator. For the specified operands or integers, the math operator's symbol has predetermined rules that must be followed. In mathematics, there are five basic operations: addition, subtraction, multiplication, division, and modular forms.

Given a number 128{1/7}

Simplification of this number

=> 128(1/7)

=> 18.28

therefore, the Given number is a fraction number or a real number.

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Answer: m = -1

Step-by-step explanation:

For the inference in part b to be valid, the conditions required are reasonable satisfaction.

To determine if the conditions for the inference in part b are reasonably satisfied, we need to consider the specific details of the inference.

However, in general, the conditions for a valid inference typically include logical reasoning, accurate data, reliable sources, and relevant contextual information.

These conditions ensure that the conclusion drawn from the inference is supported by evidence and does not contain logical fallacies or biases. It is important to evaluate the quality and reliability of the information used in the inference to determine if the conditions are reasonably satisfied.

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Answer:

4.

Step-by-step explanation:

18x^2- 32

= 2(9x^2 - 16)

= 2(3x + 4)(3x - 4)

Using Euler's Method with a step size of h = 0.1, the approximate values of the solution at t = 0.1, 0.2, 0.3, 0.4, and 0.5 are:

t = 0.1: y ≈ 1.1

t = 0.2: y ≈ 1.22

t = 0.3: y ≈ 1.34

t = 0.4: y ≈ 1.47

t = 0.5: y ≈ 1.61

To use Euler's Method, we start with an initial condition. In this case, the given initial condition is y(0) = 1. We can then iteratively calculate the approximate values of the solution at each desired time point using the formula:

Yn = Yn-1 + h * F(Xn-1, Yn-1)

Here, h represents the step size (0.1 in this case), Xn-1 is the previous time point (t = Xn-1), Yn-1 is the solution value at the previous time point, and F(Xn-1, Yn-1) represents the derivative of the solution function.

For the given differential equation +2y = 2 - ey, we can rearrange it to the form y' = (2 - ey) / 2. The derivative function F(Xn-1, Yn-1) is then (2 - eYn-1) / 2.

Using the initial condition y(0) = 1, we can proceed with the calculations:

t = 0.1:

Y1 = Y0 + h * F(X0, Y0)

= 1 + 0.1 * [(2 - e^1) / 2]

≈ 1 + 0.1 * (2 - 0.368) / 2

≈ 1 + 0.1 * 1.316 / 2

≈ 1 + 0.1316

≈ 1.1

Similarly, we can calculate the approximate values of the solution at t = 0.2, 0.3, 0.4, and 0.5 using the same formula and previous results.

Using Euler's Method with a step size of h = 0.1, we found the approximate values of the solution at t = 0.1, 0.2, 0.3, 0.4, and 0.5 to be 1.1, 1.22, 1.34, 1.47, and 1.61, respectively.

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Answer:

1- c:25

2-cant help

3- A:2,8

4-cant help

Answer:

the sale price is £76

Step-by-step explanation:

The computation of the sale price is shown below:

= Original price - original price × off percentage

=  £80  - £80  × 5%

= £80   - £4

= £76

Hence, the sale price is £76

Total number of games for 9 teams so that each team will play 12 games in the baseball league will be 432

Total number of teams in the baseball league is 9

Total number of games that each team will play is 12

Since, each team will have option of 8 teams to play with since no team can play with itself

Therefore, number of games that each team will play after playing 12 games will be 8 x 12 = 96

Since there are 9 teams, therefore total number of games that two teams will play = 96 x 9 = 864

Now, as it takes two teams to play a game therefore the required number of games for the 9 teams = 864/2 = 432

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There are eight possible states, and the transition probabilities can be estimated based on historical data or observations.

To analyze the given weather system using a Markov chain, we need to identify the different possible states that the system can be in.

In this case, the states would correspond to the different combinations of weather conditions over the last three days. There are eight possible states, as each day can either be rainy or not rainy, resulting in 2^3 = 8 possible combinations.

Next, we would need to determine the probability of transitioning from one state to another. For example, if it rained for the past three days, the probability of it raining again tomorrow might be high,

while if it was sunny for the past three days, the probability of rain might be low. These transition probabilities can be estimated based on historical weather data or by observing the system for a period of time.

Once we have determined the transition probabilities, we can create a transition matrix that describes the probabilities of moving from each state to every other state. This matrix can then be used to calculate the long-term probabilities of being in each state, and to make predictions about the likelihood of rain in the future.

In summary, to analyze the given weather system using a Markov chain, we need to identify the possible states based on the weather conditions over the last three days,

determine the transition probabilities between states, create a transition matrix, and use it to calculate long-term probabilities and make predictions.

In this case, there are eight possible states, and the transition probabilities can be estimated based on historical data or observations.

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Answer:

What contributed to the decline of the Indus Valley civilization?

Select all correct answers.

Step-by-step explanation:

1) Add 3 to both sides.

\(x+3=2y\)

2) Divide both sides by 2.

\(\frac{x+3}{2} =y\)

3) Switch sides.

\(y=\frac{x+3}{2}\)

For piecewise functions, identify the intervals and equations, and evaluate the function for different values of x. For greatest integer functions, use the greatest integer function to evaluate expressions or equations

To complete your homework on piecewise functions and greatest integer functions, follow these steps: Understand the concept of a piecewise function: A piecewise function is a function that is defined by different rules for different intervals or segments of its domain.

Each segment has its own equation. Identify the intervals and equations: Look at the given function and identify the intervals where the function changes. Write down the equations that define the function for each interval. Evaluate the function for different values of x: Plug in different values of x into each equation to find the corresponding y-values.

Make sure to use the appropriate equation based on the interval that x falls into. Understand the concept of a greatest integer function: The greatest integer function, denoted as f(x) = [x], returns the largest integer that is less than or equal to x. For example, [3.5] = 3 and [−2.8] = −3. Apply the greatest integer function: Use the greatest integer function to evaluate the given expression or equation. Substitute the given value of x into the equation and find the corresponding output value by taking the greatest integer less than or equal to x. It's important to understand the concepts of piecewise functions and greatest integer functions.

Piecewise functions are functions that have different rules for different intervals or segments of their domain. Each segment has its own equation. In order to work with piecewise functions, you need to identify the intervals and equations that define the function for each interval. Then, you can evaluate the function for different values of x by plugging in the appropriate equation based on the interval that x falls into.

On the other hand, the greatest integer function, denoted as f(x) = [x], returns the largest integer that is less than or equal to x. It can be used to evaluate expressions or equations by substituting the given value of x and finding the corresponding output value by taking the greatest integer less than or equal to x.

In conclusion, to complete your homework on piecewise functions and greatest integer functions, you need to understand the concepts behind them. For piecewise functions, identify the intervals and equations, and evaluate the function for different values of x. For greatest integer functions, use the greatest integer function to evaluate expressions or equations. By following these steps, you will be able to solve problems related to these topics.

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The given point is an interior point of S

Consider the set S = {(x, y): 1 < xº + y² < 4}.

Now, we are supposed to describe the point (12, - v2) which is a member of the set.

We are to decide whether the given point is an interior point or a boundary point or neither of these.

A point can be classified into either of the following categories:

(a) Boundary point: A point x is said to be a boundary point of the set S if every open ball centered at x contains at least one point of S and at least one point not in S.

(b) Interior point: A point x is said to be an interior point of the set S if there exists an open ball centered at x which contains only points of S.

We have, S = {(x, y): 1 < x² + y² < 4}. This is the set of points whose distance from the origin is between 1 and 2.

Hence S is the region between the circles with radius 1 and 2 centered at the origin.

Now, let us consider the point (12, - v2).

The distance of this point from the origin is given bysqrt((12)^2 + (- sqrt(2))^2)=sqrt(144 + 2) =sqrt(146).Since 1 < sqrt(146) < 2, the given point lies in the region between the circles of radii 1 and 2 centered at the origin.

Therefore, the given point is an interior point of S.

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Answer:

17 DVD 23CDs

Step-by-step explanation:

x=DVD y=CD (makes it easier for me to write this)

7x+4y=211 x+y=40

x+y=40

-x

y=40-x

7x+4(40-x)=211

7x+160-4x

3x+160=211

-160

3x=51

Divide by 3

51/3=17

17=x

17+y=40

-17

y=23

hope this helps :)

Sample 1: Mean=10.01, Standard deviation=13.90 Sample 2: Mean

=11.43, Standard deviation

=14.10

Sample size of 1st year = n1

= 1012Mean of 1st year sample

= X1 = 10.01Standard deviation of 1st year sample

= s1

= 13.90Sample size of 2nd year

= n2

= 1012Mean of 2nd year sample

= X2

= 11.43

Standard deviation of 2nd year sample = s2

= 14.10 Let us assume a significance level of α = 0.05, which implies that the critical region consists of 2.5% in both tails (since it is a two-tailed test).

Therefore, we do not have sufficient evidence to conclude that the mean number of hours per week spent on the Internet differs between 2010 and another year.

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The probability that the proportion of orange candy in this sample (a sample proportion) is between 16% and 18% is:0.2023 - 0.0475= 0.1548 (rounded to four decimal places)Hence, the required probability is 0.1548.

To find the probability that the proportion of orange candy in this sample (a sample proportion) is between 16% and 18%, we need to use the normal distribution and the standard normal table. A standard normal table or a z-table is a table that contains the area to the left of z-score on its left tail (to the left of the mean) and represents the normal distribution.

For instance, the area between z=0 and z=1.5 is 0.4332. It shows how likely an event is to occur. The formula to calculate the sample proportion is: sample proportion = (number of favorable outcomes) / (total number of possible outcomes) We can write this as: p = X / N where, p = sample proportion X = number of favorable outcomes N = total number of possible outcomes Now, let's calculate the sample proportion of orange candies: Sample proportion = (number of orange candies) / (total number of candies)= 80 / 500= 0.16 (rounded to two decimal places)

Next, let's calculate the standard deviation of the sample proportion: Standard deviation of sample proportion = √ [ ( p × q ) / n ]where, p = sample proportion  q = 1 - p (probability of failure)n = sample size In this case, p = 0.16q = 0.84n = 500Standard deviation of sample proportion = √ [ ( 0.16 × 0.84 ) / 500 ]= 0.024 (rounded to three decimal places) Now, let's calculate the z-scores for 16% and 18%:z1 = (x1 - μ) / σz1 = (0.16 - 0.20) / 0.024z1 = -1.67 (rounded to two decimal places)z2 = (x2 - μ) / σz2 = (0.18 - 0.20) / 0.024z2 = -0.83 (rounded to two decimal places) Finally, let's look up the areas for these z-scores in the standard normal table:  Area to the left of z1 = 0.0475Area to the left of z2 = 0.2023.

Therefore, the probability that the proportion of orange candy in this sample (a sample proportion) is between 16% and 18% is:0.2023 - 0.0475= 0.1548 (rounded to four decimal places)Hence, the required probability is 0.1548.

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The statement that best explains whether or not a calculator is the most efficient way to simplify (0.68 – 0.38 – 0.2) × 2.3 is multiplying the amount in the parentheses by 2.3 will be a time-consuming process, so using a calculator would most likely be more efficient.

Multiplying the amount in the parentheses by 2.3 can be time-consuming, especially since some of the decimals are to the tenths digit and others are to the hundredths. Therefore, using a calculator would likely be the most efficient way to simplify (0.68 – 0.38 – 0.2) × 2.3.

While multiplying any number by 2.3 can be done quickly by hand, it may still take longer than using a calculator in this case. Additionally, although the calculations inside the parentheses are easily done by hand, it may not necessarily be the most efficient method in this situation.

Complete Question

Which statement best explains whether or not a calculator is the most efficient way to simplify (0.68 – 0.38 – 0.2) × 2.3?

Multiplying the amount in the parentheses by 2.3 will be a time-consuming process, so using a calculator would most likely be more efficient.

Some of the decimals are to the tenths digit and others are to the hundredths, so using a calculator would most likely be more efficient.

The calculations inside the parentheses are easily done by hand and yield a value easily multiplied by 2.3, so finding the solution by hand would most likely be more efficient.

Multiplying any number by 2.3 can be done quickly by hand, so solving this problem by hand would most likely be more efficient.

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Answer:

37.7 inches

Step-by-step explanation:

u have the formula so with r being radius just multiply by 2 then multiply that answer by pie and round to the nearest tenth.

The result of (7 - 8i)(6 + 8i) is -22 + 8i, which is a simplified complex number.

A complex number is a number of the form a + bi, where a and b are real numbers and i is the imaginary unit (√(-1)). The real part of the complex number is a, and the imaginary part is bi. Complex numbers can be added, subtracted, multiplied, and divided, just like real numbers.

To perform the indicated operation (7 - 8i)(6 + 8i), we will use the FOIL method (First, Outer, Inner, Last). Let's multiply the real and imaginary parts separately and then combine them:

First: 7 * 6 = 42

Outer: 7 * 8i = 56i

Inner: -8i * 6 = -48i

Last: -8i * 8i = -64

Now, let's combine the results:

42 + 56i - 48i - 64

Simplifying further:

42 - 64 + 56i - 48i

Combining like terms:

-22 + 8i

Therefore, the result of (7 - 8i)(6 + 8i) is -22 + 8i, which is a simplified complex number.

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Answer:

Step-by-step explanation:

1  is 28

2 is 24

3 is 7

4 is 9

Step-by-step explanation:

please mark me as brainlest

Step-by-step explanation:

hope it's helpful for you

9514 1404 393

Answer:

  4 and 35

Step-by-step explanation:

Written as 4/7 = 20/35, the extremes are the outside numbers: 4 and 35.

Answer:

207

Step-by-step explanation:

9ft=3yrds

3x69=207