What is the expression equivalent to 2x^2-6x+5

Answer:

It depends on your situation

Step-by-step explanation:

If you have a mixed fraction, for example: 5 23/3000 + 101 777/3000 you would have to make them irrational numbers and add them. Like so: 3000x5 = 15000. 15000+23 = 15023.  15023/3000. Same process but this time you get 303777/3000. You then add the numerators (top numbers) and you'll get the sum over 3000.

For regular fractions you simply add the numerators. If your denominators are not the same, you need to find a common term that both can fit into. If the denominators are not the same, no matter the size of the fraction, you cannot add it.

Answer: option #1

y = 2x-3

Step-by-step explanation:

1. You can't see the other options from the image.

2. Looking at the table, the points print to be the exact same as the graph.

Answer:

4 cases of oil

Step-by-step explanation:

Answer:

qwerty ur mother

Step-by-step explanation:

The minimum sample size needed for 95% confidence that the sample variance is within 5% of the population variance is given by n = (1.96² * σ²) / (0.05²).

The minimum sample size needed to be 95% confident that the sample variance is within 5% of the population variance can be calculated using the formula:

n = (Z² * σ²) / (E²)

where:

n is the minimum sample size,

Z is the z-score corresponding to the desired confidence level (in this case, 95% confidence corresponds to a z-score of approximately 1.96),

σ² is the population variance, and

E is the maximum allowable difference between the sample variance and the population variance (expressed as a proportion of the population variance).

The formula ensures that the desired confidence level is achieved while limiting the difference between the sample and population variances within the specified threshold.

In summary, to determine the minimum sample size needed to be 95% confident that the sample variance is within 5% of the population variance, you can use the formula n = (1.96² * σ²) / (0.05²), where σ² represents the population variance.

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Answer:

180 p

Step-by-step explanation:your welcome

Answer:

a third 1/3

Step-by

you only want 1 dozen so its 1 dozen/3 dozen

True

In a symmetrically shaped distribution of scores, regardless of whether it has one mode or two modes, the mean value tends to be similar to the median value.

When a distribution is symmetric, it means that the data is evenly distributed around the central point, resulting in a bell-shaped curve. In such cases, the mean, median, and mode are typically close to each other.

The mean is the arithmetic average of all the scores in a distribution, while the median represents the middle value when the scores are arranged in ascending or descending order. In a symmetric distribution, the mean and median are located at the exact center of the distribution.

If the distribution has only one mode, it means that there is one prominent peak or high point in the data. In this case, the mean and median will coincide with the mode and will be similar.

If the distribution has two modes, it means that there are two prominent peaks in the data, but they are symmetrical around the center. Even though there are multiple modes, the mean and median will still be similar and tend to be located between the two modes.

In summary, in symmetrically shaped distributions, regardless of the presence of one or two modes, the mean and median values are expected to be close to each other.

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Answer:

\(x\geq -6\)

Step-by-step explanation:

The domain of a function is all of the values that \(x\) can be under that specific function. In this case, we're asking what values of \(x\) allow \(\sqrt{\frac{1}{3} x+2}\) to exist.

In order for square roots to exist, the quantity under the square root must be greater than or equal to \(0\), because you can't take the square root of a negative number. Therefore, we can write the following inequality to solve for \(x\):

\(\frac{1}{3}x+2\geq 0\)

Solving this inequality, we get:

\(\frac{1}{3}x+2\geq 0\)

\(\frac{1}{3}x\geq -2\) (Subtract \(2\) from both sides of the inequality to isolate \(x\))

\(x\geq -6\) (Multiply both sides of the inequality by \(3\) to get rid of \(x\)'s coefficient)

Hope this helps!

Answer:

A. 5.8

Step-by-step explanation:

if ABCD was reflected to FGHI means that A became F and B became G so AB became (was mapped to ) FG after reflection.

the length ( or distance) after reflection is is preserved ( does not change) so

if AB = 5.8 units then FG =5.8 units.

Answer: Where is the triangle?

Step-by-step explanation: Brainliest pls:)

2.426

Step-by-step explanation:

0 2. 4 2 6

6 1 4. 5 6 0

− 0

1 4

− 1 2

2 5

− 2 4

1 6

− 1 2

4 0

− 3 6

4

Answer as a fraction: \(\frac{75}{182}\)

Answer as a decimal: 2.42

Step-by-step explanation:

Hope it helps and have a great night! =D

~shining stars~

Answer:

x=2.4

Step-by-step explanation:

brainliest pls

Answer:

The value of x is 2.4

Step-by-step explanation:

3.9x – 0.7 = 8.66

3.9x – 0.7 + 0.7 = 8.66 + 0.7

3.9x = 9.36

3.9x/3.9 = 9.36/3.9

x = 2.4

Thus, The value of x is 2.4

-TheUnknownScientist 72

To compute the probabilities and sketch the graphs, we can use technology such as a statistical software or a graphing calculator. The steps involved are as follows:

(a) For X ~ N(3.7, 4.55), to find P(3.0 ≤ X ≤ 4.0), we can use the normal distribution function with the given mean and standard deviation. By inputting the values into the software, it will calculate the probability for us. Similarly, for (b) X ~ N(62, 100), to find P(45 ≤ X ≤ 50), and (c) X ~ N(7.6, 12), to find P(8 ≤ X ≤ 9) and P(X ≥ 45), we can follow the same process.

Once the probabilities are computed, we can plot the corresponding graphs to visualize the probability distributions. Each graph will have the X-axis representing the variable X and the Y-axis representing the probability density. The graphs will show the range of X values and the corresponding probabilities within that range.

By utilizing technology, we can efficiently calculate the probabilities and create accurate graphs to visualize the distributions.

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Answer:

Width: 90m

Length: 120m

Step-by-step explanation:

Width = 3/4x

Length = x

2(3/4x) + 2x = 420m

6/4 x + 2x = 420m. (6/4 + 2 = 7/2)

7/2x = 420m

7x = (420)*(2)

x = 840/7 = 120

Width = (120)*(3/4) = 90

Length: 120

2(90)+2(120)= 420m

Therefore, the coordinates of point P are approximately (4.444, -2.222, 4.444). This is the point on the plane 2x - y + 2z = 20 nearest to the origin.

To find the point on the plane nearest to the origin, we need to minimize the distance between the origin and a point on the plane.

The distance between two points, (x₁, y₁, z₁) and (x₂, y₂, z₂), is given by the formula:

distance = √((x₂ - x₁)² + (y₂ - y₁)² + (z₂ - z₁)²)

In this case, we want to find a point (x, y, z) on the plane 2x - y + 2z = 20 that is closest to the origin (0, 0, 0).

We can set up this problem as an optimization problem by minimizing the distance function:

distance = √((x - 0)² + (y - 0)² + (z - 0)²) = √(x² + y² + z²)

subject to the constraint 2x - y + 2z = 20.

To solve this problem, we can use the method of Lagrange multipliers. We define the Lagrangian function:

L(x, y, z, λ) = x² + y² + z² + λ(2x - y + 2z - 20)

Taking the partial derivatives of L with respect to x, y, z, and λ, and setting them equal to zero, we can solve for x, y, z, and λ. However, this process is quite lengthy and involves solving a system of equations.

Alternatively, we can use geometric intuition to find the point on the plane nearest to the origin. The normal vector to the plane is given by the coefficients of x, y, and z, which is (2, -1, 2). This vector is perpendicular to the plane.

The point on the plane closest to the origin will be the one that lies on the line perpendicular to the plane and passes through the origin. Let's call this point P.

The direction vector of the line passing through the origin and perpendicular to the plane is the same as the normal vector, (2, -1, 2). Therefore, the coordinates of point P can be expressed as (2t, -t, 2t), where t is a scalar parameter.

Substituting these coordinates into the equation of the plane, we get:

2(2t) - (-t) + 2(2t) = 20

4t + t + 4t = 20

9t = 20

t ≈ 2.222

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We have two fractions being divided. When we divide two fractions, we flip the second fraction and multiply

1/12 divided by 1/6 = 1/12 * 6/1

-------

From here we multiply straight across.

The numerators multiply to get 1*6 = 6

The denominators multiply to 12*1 = 12

We end up with 6/12 which reduces to 1/2 when you divide both parts by the GCF 6

The equation of the perpendicular line in slope intercept form is

y = (-3/4)x - 9/4.

The slope is defined as the rate of change of the y-axis with respect to

x-axis.

We know equation of a line in slope intercept form is y = mx + b, where slope = m and y-intercept = b.

We also know that perpendicular lines have a slope that is negative reciprocal of each other.

Given line is 8x - 6y = -5.

-6y = - 8x - 5.

-y = (-8/6)x - 5/6.

-y = (-4/3)x - 5/6.

y = (4/3)x + 5/6.

∴ Slope(m) = 4/3.

So, the line which is perpendicular has a slope(m) = -3/4 with points (1,-3).

∴ - 3 = (-3/4)(1) + b.

- 3 = -3/4 + b.

b = 3/4 - 3.

b = -9/4.

∴ The equation of the line is y = (-3/4)x - 9/4.

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In the given triangle with sides a = 2 cm, b = 7 cm, and c = 3/3313 cm, the largest angle is approximately 0.00000028 radians.

To find the largest angle of the triangle with sides a = 2 cm, b = 7 cm, and c = 3/3313 cm, we can apply the Law of Cosines. According to the Law of Cosines, for a triangle with sides a, b, and c and the angle opposite to side a denoted as A, the equation is:

cos(A) = (b^2 + c^2 - a^2) / (2bc).

Substituting the given values, we have:

cos(A) = (7^2 + (3/3313)^2 - 2^2) / (2 * 7 * (3/3313)).

Simplifying the expression, we get:

cos(A) ≈ 0.999999997,

Using the inverse cosine (arccos) function, we can find the angle A:

A ≈ arccos(0.999999997) ≈ 0.00000028 radians.

Therefore, the largest angle of the triangle is approximately 0.00000028 radians.

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Answer:

8

Step-by-step explanation:

\(x^2-2x \\x=4\\(4)^2-2(4)\\16-8\\8\)

Find AB , AC , DE and DF. If the ratios DE/AB and DF/AC are equal , then the triangles are similar

Given data ,

Let the first triangle be ΔABC

Let the second triangle be ΔDEF

Now , the corresponding sides are

DE/AB and DF/AC

Now , corresponding sides of similar triangles are in the same ratio.

On simplifying , we get

DE/AB = DF/AC

Hence , the triangles are similar

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Answer:

small = 35 pounds

large = 45 pounds

Step-by-step explanation:

Let x = large boxes

y = small boxes

two equations can be derived from the question

x + y = 80  equation 1

60x + 65y = 4975 equation 2

multiply equation 1 by 60

60x +60y = 4800 equation 3

subtract equation 2 from 3

5y = 175

y = 35

substitute for y in equation 1

x + 35 = 80

x = 80 - 35

x = 45

Answer:

C

Step-by-step explanation:

multiply by 2 to be 2x-6

Answer:

x=8//

Step-by-step explanation:

2(x- 3)

or,2x-6

or,X=6+2

hence,X=8//

Answer:

45°

Step-by-step explanation:

AD⊥BC, BE⊥AC, CF⊥AB           AB = CK

∠1 + ∠2 = 90°        ∠5 + ∠2 = 90°              ∴ ∠1 = ∠5

∠5 + ∠4 = 90°                                            ∴ ∠4 = ∠2

AB = CK

ΔABD ≅ ΔCKD  (ASA)

AD = CD       ∴ΔADC is an isosceles triangle

∠C = ∠CAD = 45°       (∠C + ∠CAD = 90°)

To divide universities into two groups based on whether the number of new students enrolled exceeds the average (mean) of all new students enrolled, you can follow these steps: Import the pandas library in Python to work with data frames.

Read the dataset containing the number of new students enrolled for each university. Calculate the average (mean) of all the values in the dataset using the mean() function. Create a new column in the data frame to indicate whether the number of new students enrolled exceeds the average. Use conditional statements to assign a label (e.g., "Group A" or "Group B") based on whether the number of new students enrolled is above or below the average. Finally, you can summarize the results by counting the number of universities in each group using the value_counts() function. By following these steps, you can divide universities into two groups based on whether the number of new students enrolled exceeds the average. This approach utilizes the pandas library in Python to handle the dataset and perform the necessary calculations. To start, you need to import the pandas library, which provides functions for working with data frames. Next, you can read the dataset that contains the number of new students enrolled for each university. Once the dataset is loaded, you can calculate the average (mean) of all the values using the mean() function provided by pandas. To create a new column indicating whether the number of new students enrolled exceeds the average, you can use the apply() function along with a lambda function. The lambda function should return either True or False based on the condition. For example, if the number of new students enrolled is greater than the average, the lambda function would return True; otherwise, it would return False. With the new column in place, you can use conditional statements, such as if-else or np.where(), to assign a label to each university based on whether the number of new students enrolled exceeds the average. For example, you can assign the label "Group A" to universities with above-average enrollment and "Group B" to universities with below-average enrollment. Finally, you can summarize the results by counting the number of universities in each group. The value_counts() function can be used to achieve this. It will provide a count of universities in each group, allowing you to see the distribution of universities based on their enrollment numbers.

By following the steps outlined above, you can effectively divide universities into two groups based on whether the number of new students enrolled exceeds the average. This approach utilizes the powerful data manipulation capabilities of the pandas library in Python, allowing you to perform calculations, create new columns, and assign labels based on conditions. The final step of summarizing the results using value_counts() provides a clear overview of the distribution of universities in each group.

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Answer:

if she types 50 words per minute it would be 16 minutes for her to get to 800 words

Step-by-step explanation:

Answer:

Step-by-step explanation:

800 divided by 50 = 16

Answer:

y = -3x + 13

Step-by-step explanation:

y = -3x + 13 is the only formula there that has a slope -3 (as shown in -3x) and is the only one that passes through point 5,-2.

The equation of the line that passes through the point (5, -2) and has a slope of -3 will be y = - 3x + 13. Then the correct option is C.

A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.

The linear equation is given as,

y = mx + c

Where m is the slope of the line and c is the y-intercept of the line.

The slope of the line is given as,

y = -3x + c

The equation of the line is passing through the point (5, -2). Then we have

- 2 = - 3(5) + c

- 2 = - 15 + c

c = 13

The equation of the line that passes through the point (5, -2) and has a slope of -3 will be y = - 3x + 13. Then the correct option is C.

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Answer:

h(x)=10

Step-by-step explanation:

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

h(x)= 4(3)-2

h(x)= 12-2

h(x)= 10

Answer: a graph of a line that passes through the points negative 1 comma 2 and 0 comma negative 3.

Step-by-step explanation: the y-intercept is where the line meets the y line which in this case is -3. I used slope formula to find the m of the equation ( slope ) take a look at the attached image to see how I solved it.

Answer:

a graph of a line that passes through the points negative 1 comma 2 and 0 comma negative 3.

Step-by-step explanation: