What’s the common difference for this arithmetic sequence: 23,__,__,50...​

Answer:

OH GOD

WHAT TYPE OF DEMON MATH IS THIS

Step-by-step explanation:

sorry but tbh i have NO FRICKING CLUE!!!

Answer:

Please look at the pic that is your answer.

Number of students that selected the elective subject of religion in 2014 is 1344

The problem tells us that in 2013, there were 1400 students who selected the elective subject of religion.

Then, in 2014, this figure decreased by 4%. This means that the new figure in 2014 will be 4 percentage less than the figure in 2013.

To calculate what 4% of 1400 is, we need to multiply 1400 by 4/100, which gives us 56. So, 56 students did not select the elective subject of religion in 2014 compared to 2013.

So, the number of students who selected the elective subject of religion in 2014 is

= 1400 - 56

= 1344

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The solution set of inequality " for 9t+27 <4t-18" in interval notation is (-∞, -9).

To solve the inequality 9t + 27 < 4t - 18, we need to isolate the variable t on one side of the inequality. Here are the steps:

1. Subtract 4t from both sides: 9t - 4t + 27 < -18
2. Simplify: 5t + 27 < -18
3. Subtract 27 from both sides: 5t < -45
4. Divide both sides by 5: t < -9

Now we can write the solution set in interval notation: (-∞, -9)

So the solution set is all values of t that are less than -9.

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Unfortunately, I am unable to directly interpret or visualize figures or images. However, I can provide you with a general explanation. In a discretized reservoir using block-centered grids, the standard ordering refers to the arrangement of grid cells or blocks in a particular pattern.

This pattern is often used to establish the connectivity and adjacency relationships between the cells in the reservoir model. Typically, the standard ordering arranges the grid cells in a sequential manner, starting from the top-left corner and moving row by row. Each grid cell represents a discrete volume or unit in the reservoir. The non-zero elements, indicated by the "x" positions in the coefficient matrix, would correspond to the active or connected cells within the reservoir model. These active cells are the ones that contribute to fluid flow and other reservoir properties. To visualize the discretized reservoir using the standard ordering, you would need to refer to the coefficient matrix and determine the dimensions of the reservoir model, such as the number of rows and columns. Then, starting from the top-left corner, you can represent each active cell or block using a graphical representation, such as a square or rectangle, in a sequential manner based on the standard ordering. This way, you can construct a visual representation of the discretized reservoir model.

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The similarity statement is the SAS similarity

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

Triangles

One corresponding angle in the pair of triangles are equal (A)

Two sides of the pair of triangle are in proportion (SS)

i.e. 16/12 = 20/15

Hence, the similarity statement is SAS

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Answer:

Step-by-step explanation:

Adding and subtracting expressions:

a) M + (5x² -2xy) = 6x² +9xy - y²

                      M = 6x² + 9xy - y² - (5x² - 2xy)

Remove the parenthesis by mulplying each term of 5x² - 2xy by (-1) as (-1) is outside the parenthesis

                           = 6x² + 9xy - y² - 5x² + 2xy

Combine ( add or subtract) like terms.

                           = 6x² - 5x² + 9xy + 2xy - y²

                           = x² + 11xy - y²

Hint: Like terms have same variable with same power.

Here, like terms are (i) 6x² and (-5x²)  (ii) 9xy and 2xy

b)               (3xy - 4y²) - N = x² - 7xy + 8y²

                   3xy - 4y²       = (x² - 7xy + 8y²) + N

3xy - 4y² - (x² - 7xy + 8y²) = N

3xy - 4y² - x² + 7xy - 8y² = N

3xy + 7xy -4y² - 8y² -x²   = N

          10xy -12y²  - x²     = N

Answer: N =  10xy - 12y² -x²

a. The unemployment rate is 20%.

b. The labor-force participation rate is 60%.

According to the question,

Working age population- 100,000

Labour force - 60,000

Unemployed - 12000 instructions

a) The unemployment rate is the percentage of the labor force that is unemployed and it is calculated as follows:

Unemployment Rate = \(\frac{Number of unemployed People}{Labor force}\) × 100

When an unemployed population is 12,000 and the labor force is 60,000,

the unemployment rate is  = \(\frac{12000}{60000}\) × 100 = 20%

b) labor force participation rate is the percentage of working adult population that participates in labor either by actively looking for a job, or working. It is calculated as follows:

Labor Force Participation Rate = \(\frac{Labor force}{working age population}\) × 100

When the labor force is 60,000 and the working-age population is 100,000

Labor Force Participation Rate = \(\frac{60000}{100000}\) × 100 = 60%

So, a. The unemployment rate is 20%.

b. The labor-force participation rate is 60 %.

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Answer:

1 and 3/4<p

Step-by-step explanation:

2-1&3/4=1/4,

and p+1/4>=2;

so the answer must be 1 and 3/4 or greater

Answer:

A: $188.75

B: $566.25

Step-by-step explanation:

To find the amount of the discount you can either multiply the original price ($755) by 1/4 or you can divide by 4.

Either way will get you $188.75. This is a quarter of the original price and is what is subtracted from the original sale price ($755). To find the sale price after the discount you do:

755-188.75=$566.25.

To check this you can do 755 × 3/4.

Hope this helps.

Please Mark Brainliest!!!

Answer:

What he said

Step-by-step explanation:

Therefore, the discount factor for one period with a rate of return of 6 percent is approximately 0.9434.

To calculate the discount factor for one period with a rate of return equal to 6 percent, you can use the formula:

Discount Factor = 1 / (1 + Rate of Return)

Substituting the rate of return of 6 percent (0.06) into the formula:

Discount Factor = 1 / (1 + 0.06) = 1 / 1.06 ≈ 0.9434

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The least number of blocks with which he can do is 168 blocks.

What is the least Common Multiple (LCM)?

The Least Common Multiple (LCM) is a method for determining the smallest common multiple of two or more numbers. A common multiple is a number that is the product of two or more numbers.

Least number of blocks = LCM of 6cm, 7cm, and 8cm.

Multiples of 6 - 6,12,18,24,30,36,42,48,54,60

Multiples of 7 - 7,14,21,28,35,42,49,56,63,70

Multiples of 8 - 8,16,24,32,40,48,56,64,72,80

Common Multiples - 168

Least Common Multiple - 168

So the least number of blocks with which he can do is 168 blocks.

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The expected value of the "Buy New" option is 724732.60.

Decision Tree:

To solve the given problem, the first step is to create a decision tree. The decision tree for the given problem is shown below:

Expected Value Calculation: The expected value of the "Buy New" option can be calculated using the following formula:

Expected Value = (Prob. of Prosperity * Payoff for Prosperity) + (Prob. of Recession * Payoff for Recession)

Substituting the given values in the above formula, we get:

Expected Value for "Buy New" = (0.7 * 1,035,332) + (0.3 * -150,000)Expected Value for "Buy New" = 724,732.60

Therefore, the expected value of the "Buy New" option is 724,732.60.

Conclusion:

To conclude, the decision tree is an effective tool used in decision making, especially when the consequences of different decisions are unclear. It helps individuals understand the costs and benefits of different choices and decide the best possible action based on their preferences and probabilities.

The expected value of the "Buy New" option is 724,732.60.

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Answer:

74 days

Step-by-step explanation:

The computation is shown below;

The proportion that remains left after d days is

p = (1/2)^(d ÷ 100)

In the case when the proportion is 60%

So,  

0.60 = 0.50^(d ÷ 100)

Now

log(.60) = (d ÷ 100)log(.50)

100·log(.60) ÷ log(.50) = d = 74 days

The correct statement regarding R-squared is: "Its value is always between -1.0 and 1.0. A value of 1.0 indicates the line is a perfect fit for the data."

R-squared (²) is a statistical measure that represents the proportion of variance in the dependent variable that is explained by the independent variable(s) in a regression model. The value of R-squared ranges from -1.0 to 1.0.

A value of 1.0 indicates that the regression line perfectly fits the data, while a value of 0 indicates that the model cannot explain any variance in the dependent variable. A negative value indicates that the model is worse than just using the mean of the dependent variable.

Therefore, the best fit line for the data is the one that has an R-squared value closest to 1.0, indicating that it explains a high percentage of the variance in the dependent variable based on the independent variable(s). It is important to note that an R-squared value above 1.0 is not possible and may indicate a mistake in the calculations.

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Answer:

Chad has $2 in total!

Step-by-step explanation:

14 - 14 -3 +5

= 2

The function "distance" should take in an array "data" containing a row of time values and a row of measurements, and return the calculated distance in miles.

To calculate the distance, we can use the formula: distance = (measurement / 5280) * time, where measurement is in feet, time is in seconds, and the factor 5280 is the number of feet in a mile.

So, in the function, we can loop through the two rows of data, calculate the distance for each pair of values using the above formula, and sum up the distances to get the total distance covered. Finally, we can return the total distance in miles.

With this function, we can pass in an array of time and measurement values, and get back the total distance covered in miles.

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The derivative of the function u(t⁴ - 2t) = 2t³ i + (t² - 6) j - 4 k is:

u'(t⁴ - 2t) = 24t⁵ i - 12t³ j + 8t⁴ k.

We can find the derivative of the function u(t) = u(t⁴ - 2t) = 2t³ i + (t² - 6) j - 4 k, where u(t) is a vector-valued function.

To find the derivative of u(t⁴ - 2t), we use the chain rule:

u'(t) = u'(t⁴ - 2t) * (4t³ - 2)

where u'(t) is the derivative of u with respect to its argument. In this case, the argument is t⁴ - 2t, so we need to find u'(t⁴ - 2t) and then multiply it by the derivative of the argument with respect to t, which is 4t³ - 2.

To find u'(t⁴ - 2t), we differentiate u(t) with respect to its components:

u'(t) = (6t² i + 2t j) * (4t³ - 2)

= 24t⁵ i - 12t³j + 8t⁴ k

Therefore, the derivative of the function u(t⁴ - 2t) = 2t³ i + (t² - 6) j - 4 k is:

u'(t⁴ - 2t) = 24t⁵ i - 12t³ j + 8t⁴ k

Note that the derivative of a vector-valued function is also a vector-valued function.

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The distance from the center of dilation, Q, to the image of vertex A will be 4 units.

According to the given rule of dilation, D subscript Q, two-thirds, the triangle ABC will be dilated with a scale factor of two-thirds centered at point Q.

Since point Q is the center of dilation and the distance from triangle ABC to point Q is 6 units, the image of vertex A will be 2/3 times the distance from A to Q. Therefore, the distance from A' (image of A) to Q will be (2/3) x 6 = 4 units.

By applying the scale factor to the distances, we can determine that the length of A'B' is (2/3) x  3 = 2 units, the length of B'C' is (2/3) x 7 = 14/3 units, and the length of A'C' is (2/3) x 8 = 16/3 units.

Thus, the distance from the center of dilation, Q, to the image of vertex A is 4 units.

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Answer:

an acute triangle - all 3 angles are less than 90 degrees.

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

log(5) 125 =x

5^x = 125

5^x = 5^3

x=3

Answer:

The correct answer is option:

D) ΔABC and ΔA″B″C″ are congruent triangles.

Step-by-step explanation:

Given

To find: The true statement among the given options.

Solution:

Let the triangle be situated in 1st quadrant.

It is rotated about the origin by \(270^\circ\).

Now, it moves towards quadrant 2 if it is rotated clockwise. It is termed as

\(\triangle A'B'C'\).

It is given that now it is translated 10 units upwards. i.e. 10 units added to x coordinate of each vertex to form \(\triangle A''B''C''\).

Now, we can see that there is no change in the dimensions of the triangle. We are just changing the location of the triangle.

So, all its angles will be equal to each other and all the sides will be equal to each other.

i.e.

\(\angle A = \angle A''\\\angle B = \angle B''\\\angle C = \angle C''\\Side\ AB = Side\ A''B''\\Side\ BC = Side\ B''C''\\Side\ AC = Side\ A''C''\)

Hence, the correct option is:

D)ΔABC and ΔA″B″C″ are congruent triangles.

Answer:A-B

Step-by-step explanation:

The parent function of the function g(x) = 3cos (x + 180°) + 1 is f(x) = cos(x)

Parent functions are the basic function that represents the entire family of that function family

The function is given as;

g(x) = 3cos (x + 180°) + 1

As a general rule, the parent function of any function is the basic equation of the function family

The basic equation of the function g(x) = 3cos (x + 180°) + 1 is f(x) = cos(x)

Hence, the parent function of the function g(x) = 3cos (x + 180°) + 1 is f(x) = cos(x)

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ANSWER:

The total surface area of the triangular prism is 69.77 square millimeters

STEP-BY-STEP EXPLANATION:

We have that the formula surface area of the remaining prism is the following

Replacing:

s1, s2 and s3 are the sides of the triangle, the base and the height are of the triangle and L is the length of the rectangle.

There are no specific points on the surface 5x^2 + 3y^2 + 2z^2 = 1 at which the tangent plane is parallel to the plane -4x + 4y + 5z = 0. The entire surface is parallel to the given plane.

To find the points on the surface 5x^2 + 3y^2 + 2z^2 = 1 at which the tangent plane is parallel to the plane -4x + 4y + 5z = 0, we need to determine the normal vector of the surface and the normal vector of the given plane.

Let's start by finding the normal vector of the given plane. The coefficients of x, y, and z in the equation -4x + 4y + 5z = 0 represent the components of the normal vector. Therefore, the normal vector of the plane is n1 = (-4, 4, 5).

Next, we need to find the normal vector of the surface 5x^2 + 3y^2 + 2z^2 = 1. To do this, we differentiate the equation implicitly with respect to x, y, and z.

Differentiating the equation with respect to x:

d/dx(5x^2) + d/dx(3y^2) + d/dx(2z^2) = d/dx(1)

10x + 0 + 0 = 0

10x = 0

x = 0

Differentiating the equation with respect to y:

d/dy(5x^2) + d/dy(3y^2) + d/dy(2z^2) = d/dy(1)

0 + 6y + 0 = 0

6y = 0

y = 0

Differentiating the equation with respect to z:

d/dz(5x^2) + d/dz(3y^2) + d/dz(2z^2) = d/dz(1)

0 + 0 + 4z = 0

4z = 0

z = 0

Therefore, the normal vector of the surface at the point (0, 0, 0) is n2 = (0, 0, 0). However, since the magnitude of the normal vector is zero, it indicates that the surface does not have a unique normal vector at the point (0, 0, 0).

Since the tangent plane is parallel to the given plane, the normal vectors of the surface and the plane must be parallel. Thus, the normal vectors n1 and n2 must be parallel.

To check if n1 and n2 are parallel, we can take the cross product of n1 and n2 and see if the resulting vector is the zero vector.

n1 x n2 = (-4, 4, 5) x (0, 0, 0)

= (0, 0, 0)

The resulting vector is indeed the zero vector, which means that n1 and n2 are parallel. Therefore, the tangent plane to the surface 5x^2 + 3y^2 + 2z^2 = 1 is parallel to the plane -4x + 4y + 5z = 0 at all points on the surface.

In summary, there are no specific points on the surface 5x^2 + 3y^2 + 2z^2 = 1 at which the tangent plane is parallel to the plane -4x + 4y + 5z = 0. The entire surface is parallel to the given plane.

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The value of the annual premium is $2609.9

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

Policy value = $89,657

Plan = 20-Payment Life insurance policy

From the given table:

The annual premium for a 20-Payment Life insurance policy for a 26-year-old male is $29.11

This means that

Total cost = 20 * $29.11

Total cost = $582.2

The annual premium is then calculated as

Annual premium = Total cost * 4.4829

This gives

Annual premium = $582.2 * 4.4829

Evaluate

Annual premium = $2609.9

Hence, the annual premium is $2609.9

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Step-by-step explanation:

To find probability ratio wise

Sports Cars: Total Cars

3 + 3 + 2 = 8 total cars

2 sports cars

Ratio is 2:8

Reduces to 1:4

Answer:

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In graphing inequalities, the first thing to do is graph the equation first irregardless of the inequality symbol. In the given problem, the equation to be graphed is f(x) = 2/9x + 3. Since it has a general form of y=mx + b, this is a linear function. Plot the graph by assigning arbitrary points of x, then you get the corresponding f(x) values. Graph the x values against the f(x) values. The blue line the attached picture will be formed.

Next, you solve the equation by finding x. Just don't mind the inequality symbol:

2/9 x + 3 > 4 5/9

2/9x > 4 5/9 - 3

2/9x > 14/9

x > 14/9 ÷ 2/9

x > 7

Hence, the value of x must be greater than 7. To show this in the graph, find the line where x=7. Create a partition using that line, then shade the rest of the portion where x is greater than 7 until infinity.

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Therefore, the value of n that makes the system of equations true is n = 10.

Given:

p = 2n

p - 5 = 1.5n

Substituting the value of p from the first equation into the second equation, we have:

2n - 5 = 1.5n

Next, we can solve for n by subtracting 1.5n from both sides of the equation:

2n - 1.5n - 5 = 0.5n - 5

Simplifying further:

0.5n - 5 = 0

Adding 5 to both sides of the equation:

0.5n = 5

Dividing both sides by 0.5:

n = 10

Therefore, the value of n that makes the system of equations true is n = 10.

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Answer:

t = 5

Step-by-step explanation:

t - 26 = -21

t - 26 + 26 = -21 + 26

t = 5

Answer:

t = 5

Step-by-step explanation:

t - 26 = - 21 ( add 26 to both sides )

t = - 21 + 26 = 5