Which of the following is a solution to the equation x^3=1/49? x=7^−2/3 x = 7^-3/2 X=7 2/3 This equation has no solution x=7 3/2

i) If PQRS is a quadrilateral inscribed in a circle, then the opposite angles of the quadrilateral are supplementary.

ii) The values of x and y are 120 degrees and 120 degrees respectively.

The predicted number of times the pointer will land on section B in 1,000 trials can be determined by calculating the relative frequency of B based on the recorded results of 50 spins.

To find the relative frequency, we divide the number of times the spinner landed on B by the total number of spins. In this case, let's assume that the spinner landed on section B, say, 10 times out of the 50 recorded spins.

To predict the number of times the pointer will land on B in 1,000 trials, we can use the ratio of the number of spins for B in 50 trials to the total number of spins in 1,000 trials.

Thus, the predicted number of times the pointer will land on section B in 1,000 trials would be:

Predicted number of times on B = (Number of times on B in 50 trials / Total number of spins in 50 trials) * Total number of spins in 1,000 trials

Let's assume the spinner landed on B 10 times in the 50 recorded spins. The calculation would be:

Predicted number of times on B = (10 / 50) * 1,000 = 200

Therefore, the predicted number of times the pointer will land on section B in 1,000 trials is 200.

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The probability of the sum equaling 5 is 1/9

From the question, we have the following parameters that can be used in our computation:

Rolling two dice

When two dice are rolled, we have

Outcomes = 36

Sum of 5 = 4

using the above as a guide, we have the following:

P = Sum of 5/Outcomes

substitute the known values in the above equation, so, we have the following representation

P = 4/36

Evaluate

P = 1/9

Hence, the probability is 1/9

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Answer:

Step-by-step explanation:

Given the expression (2 + i)(3 - i)(1 + 2i)(1 - i)(3 + i), we are to take the product of all the complex values. We must note that i² = -1.

Rearranging the expression [(3 - i)(3 + i)] [(2 + i)(1 - i)](1 + 2i)

On expansion

(3 - i)(3 + i)

=  9+3i-3i-i²

= 9-(-1)

= 9+1

(3 - i)(3 + i) = 10

For the expression (2 + i)(1 - i), we have;

(2 + i)(1 - i)

= 2-2i+i-i²

= 2-i+1

= 3-i

Multiplying 3-i with the last expression (1 + 2i)

(2 + i)(1 - i)(1 + 2i)

= (3-i)(1+2i)

= 3+6i-i-2i²

= 3+5i-2(-1)

= 3+5i+2

= 5+5i

Finally,  [(3 - i)(3 + i)] [(2 + i)(1 - i)(1 + 2i)]

= 10(5+5i)

= 50+50i

Hence,  (3 - i)(3 + i)(2 + i)(1 - i)(1 + 2i) is equivalent to 50+50i

Answer:

1 slice will be left because there are 16 slices and 15 guests

Step-by-step explanation:

The finite difference approximation for a Neumann boundary condition, \(\left(\frac{df}{dx}\right)\), at node \(n\) (right boundary) to \(O(h^2)\) is given by

\(\left(\frac{df}{dx}\right)_n \approx \frac{f_{n-2} - 4f_{n-1} + 3f_n}{2h}\),

where \(f_{n-2}\), \(f_{n-1}\), and \(f_n\) represent the function values at nodes \(n-2\), \(n-1\), and \(n\) respectively, and \(h\) represents the spacing between the nodes.

To derive this approximation, we start with the Taylor series expansion of \(f_{n-1}\) and \(f_n\) around \(x_n\):

\(f_{n-1} = f_n - hf'_n + \frac{h^2}{2}f''_n - \frac{h^3}{6}f'''_n + \mathcal{O}(h^4)\),

\(f_{n-2} = f_n - 2hf'_n + 2h^2f''_n - \frac{4h^3}{3}f'''_n + \mathcal{O}(h^4)\).

By subtracting \(4f_{n-1}\) and adding \(3f_n\) from the second equation, we eliminate the first-order derivative term and retain the second-order derivative term. Dividing the result by \(2h\) gives us the desired finite difference approximation to \(O(h^2)\).

In conclusion, the finite difference approximation for a Neumann boundary condition, \(\left(\frac{df}{dx}\right)\), at node \(n\) (right boundary) to \(O(h^2)\) is \(\left(\frac{df}{dx}\right)_n \approx \frac{f_{n-2} - 4f_{n-1} + 3f_n}{2h}\). This approximation is obtained by manipulating the Taylor series expansion of \(f_{n-1}\) and \(f_n\) to eliminate the first-order derivative term and retain the second-order derivative term, resulting in a second-order accurate approximation.

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Answer:

\(\sf x=\sqrt{6} +4\)

\(\sf x=4-\sqrt{6}\)

Step-by-step explanation:

\(\sf x^2-8x+10=0\)

Equations of the form ax^2+bx+c=0 can be solved by the quadratic formula:

\(\boxed{\sf \cfrac{-b\pm \sqrt{b^2-4ac}}{2a}}\)

Quadratic formula gives you two solutions one when (±) addition and one when (±) is a subtraction:

\(\sf x^2-8x+10=0\)

Substitute:

\(a:1\)

\(b:-8\)

\(c:10\)

\(\sf x=\cfrac{-\left(-8\right)\pm \sqrt{\left(-8\right)^2-4\times \:1\cdot \:10}}{2\times \:1}\)

Square -8, and multiply -4 by 10:

\(\sf x=\cfrac{(-8)\pm\sqrt{64-40} }{2}\)

Add 64 and - 40, and take the square root of 24:

\(\sf x=\cfrac{-(-8)\pm2\sqrt{6} }{2}\)

-(-8)= 8

\(\sf x=\cfrac{8\pm2\sqrt{6} }{2}\)

Now solve when (±) is a plus and then solve when it is a minus:-

\(\sf x=\sqrt{6} +4\)

\(\sf x=4-\sqrt{6}\)

____________________________

Personal car would be the best option to manage both tasks efficiently. While the train is a reliable mode of transportation, it may have fixed schedules that might not align perfectly with Patrick's needs.

On the other hand, using his personal car provides more flexibility and allows him to tailor the departure time according to his daughter's coding class schedule.

If Patrick decides to take the train, he would need to check the train schedule to see if there are convenient departure and arrival times for both the soccer game and the coding class. This option would require planning and coordination to ensure he arrives at the game on time and can pick up his daughter afterward.

Using his personal car gives Patrick the freedom to leave at a time that accommodates both the soccer game and the coding class. He can drop off his daughter at her coding class, attend the soccer game, and then pick her up afterward without being restricted by train schedules.

Considering the circumstances, Patrick might find it more convenient to use his personal car to manage both tasks effectively and ensure he can attend his son's soccer game while also ensuring his daughter arrives at her coding class on time.

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Given expression:  \(\frac{9x^2 - 1}{12x^2 - 12x} \div \frac{9x^2 + 12x + 3}{3x^2 - 6x + 3}\) . We can simplify the given expression by multiplying the numerator and denominator of the first fraction by (3x-1) and then factorise. So, the simplified expression is \($\frac{3(x-1)^2}{4x(3x+1)(x+1)}$\).

In the second fraction, we can factorise the quadratic expression in the numerator.

=  \(\frac{9x^2 - 1}{12x^2 - 12x} \cdot \frac{3x^2 - 6x + 3}{9x^2 + 12x + 3}\)

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

Simplify the expression.

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

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

= \(\frac{3(x-1)^2}{4x(3x+1)(x+1)}\) . Thus, the simplified expression is \($\frac{3(x-1)^2}{4x(3x+1)(x+1)}$\).

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Answer:

-243, 729

Step-by-step explanation:

\(f(x) = {( - 3)}^{x} \)

x = 0, 1, 2, 3, .....

\(f(5) = {( - 3)}^{5} = - 243\)

\(f(6) = {( - 3)}^{6} = 729\)

Answer:

a. 1.26

b. 0.1038

Step-by-step explanation:

The p-value is 1.0000 (rounded to four decimal places). This means that we fail to reject the null hypothesis, which in this case would be that the population mean is equal to the sample mean of 26.2.

To find the test statistic, we need to use the formula:

test statistic = (sample mean - population mean) / (standard deviation / square root of sample size)

Since the population standard deviation is given as 6, we can plug in the values:

test statistic = (26.2 - population mean) / (6 / √40)

To find the population mean, we can use the fact that the sample mean is an unbiased estimator of the population mean, so:

population mean = sample mean = 26.2

Plugging in the values, we get:

test statistic = (26.2 - 26.2) / (6 / √40) = 0

The test statistic is 0.

To find the p-value, we need to use a t-distribution table or calculator. Since we have a sample size of 40, we can use the t-distribution with 39 degrees of freedom.

Using a calculator or table, we can find that the area to the right of 0 (since the test statistic is 0) is 0.5. Since this is a two-tailed test, we need to double this value to get the p-value:

p-value = 2 * 0.5 = 1.0000
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Answer: y = -1/2x - 1

When Mali spent 5 minutes playing each song, she played a total of 12 songs.

Mali spent 2 hours at home, which is equivalent to 120 minutes. She spent 30 minutes reading each chapter, so she read a total of 120 / 30 = 4 chapters. She spent 5 minutes playing each song, so the number of songs she played can be found by subtracting the time she spent reading from the total time spent:

120 - (4 chapters x 30 minutes per chapter)

= 120 - 120

= 0 minutes

So, Mali did not play any songs during the 2 hours she spent at home.

If Mali read 2 chapters, then the total time she spent reading is 2 chapters x 30 minutes per chapter = 60 minutes. The remaining time she spent playing her guitar can be found by subtracting the time spent reading from the total time:

120 - 60 = 60 minutes

Since Mali spent 5 minutes playing each song, she played a total of 60 / 5 = 12 songs.

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The intercept in a regression equation is the point where the regression line intersects with the y-axis. In the context of hurricane wind speed and central pressure, the intercept represents the predicted value of the dependent variable (wind speed) when the independent variable (central pressure) is zero.

However, this interpretation is not necessarily meaningful in this context, as it is unlikely for the central pressure of a hurricane to be exactly zero. Instead, the intercept can be interpreted as the average predicted wind speed when central pressure is at its minimum or near its minimum (i.e., the closest value to zero in the data set). It is important to note that this interpretation assumes that the relationship between wind speed and central pressure is linear, and that the range of central pressure values in the data set is sufficiently close to zero to make this interpretation meaningful. If the relationship is not linear or if the range of central pressure values is far from zero, the intercept may not have a meaningful interpretation in the context of the data.

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Answer:

We let x the distance traveled by Car A and y the distance traveled by car B. The speed of car A can be represented as x/2.4 and for Car B is y/4. From the statement given, we can write an equation relating the speed of both cars.

x/2.4 = 22 + y/4

Since y = x, then:

x/2.4 = 22 + x/4

Solving for x, we obtain:

x= 132 meters traveled by both cars

Therefore, Car A has a speed of 55 mph.

Step-by-step explanation:

Answer:

Step-by-step explanation:

x/2.4 = 22 + y/4

Since y = x, then:

x/2.4 = 22 + x/4

x= 132 meters traveled by both cars

Therefore, Car A has a speed of 55 mph.

Their corresponding side's ratio will not change. Then, x has a value of 4.

A polygon with three edges and three vertices is called a triangle. It is one of the fundamental geometric shapes.

ABC refers to a triangle with vertices A, B, and C. In Euclidean geometry, any three points that are not collinear produce a distinct triangle and a distinct plane.

With three sides, three angles, and three vertices, a triangle is a closed, two-dimensional object.

A polygon also includes a triangle.

Triangle ABC is shown in the image above.

So, it is made up of two triangles: DEF and XYZ.

The similarity between the DEF and XYZ is assumed.

When it happens, the ratio of their corresponding side will not change. Which is:
5/10 = 2x-1/14 = 11/5x+2

The first two are what we have.

5/10 = 2x-1/14

Then, we have:
x = 4

Therefore, their corresponding side's ratio will not change. Then, x has a value of 4.

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Correct question:

Find the value of x that makes Triangle DEF~ triangle XYZ.

Answer: 11 7/8

Step-by-step explanation:

Well, if the ate 4 3/4 bags, and each bag is equal to 2 1/2, you would multiply them together. When using a calculator, it would be shown as 4.7 x 2.5. That equals 11.875, or 11 7/8.

Hello there! I saw that you needed some help on this and I would be happy to help.

Sam and his friends ate 2 1/4 ouches of fruit snacks. I got this from doing 4 3/4 - 2 1/2. You first need to convert both the denomators to the same number which in this case it would be 4. Than you need to do 4-2 which is 2 and than put your 1/4 and 2 together to make 2 1/4

Hope this helps

Answer:

\(9x = 3x - 36 \\ 6x = - 36 \\ x = - 6\)

hopefully this will u...^⁠_⁠^

For 46 minutes you can use the computer for $23.

Given that, you can rent time on computers at the local copy centre for a $7 setup charge and an additional $1.75 for every 5 minutes.

We need to find how much time can be rented for $23.

A linear equation is an equation in which the highest power of the variable is always 1. It is also known as a one-degree equation. The standard form of a linear equation in one variable is of the form Ax + B = 0. Here, x is a variable, A is a coefficient and B is constant.

Now, every minute charge=1.75/5=$0.35

Let time used be t, so we can write an equation as

7+0.35t=23

Solve the equation for t.

That is, 0.35t=16

⇒t=16/0.35=45.714

⇒t=45.714≈46 minutes

Therefore, for 46 minutes you can use the computer for $23.

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The number of ways in which the word detail can be arranged in such a way that the vowels occupy only the odd positions is 36.

We will find the number of permutations in which the word DETAIL can be arranged such that the vowels occupy odd positions.

The vowels are E, A and I. They can occupy 1st, 3rd and 5th position in any order. Hence, the number of ways to do that is 3! = 6.

Now, the consonants D, T and L can occupy 2nd, 4th and 6th position in any order. Hence, the number of ways to do that is 3! = 6.

Hence,

Total number of ways = 3! * 3! = 6*6 = 36.

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Answer:

Step-by-step explanation:

x² = 10

x = ±√10

Answer:

240 students

Step-by-step explanation:

     To find the minimum number of students, we have to find the LCM of 10, 12, 16

10 = 2 * 5

12 = 2 * 2 * 3

16 = 2 * 2 * 2 * 2

LCM = 2 * 2 *  2 * 2 * 3 * 5

       = 240

Answer:

The Answer is gonna be 0.2

0.1504 =0.2