1) a+b=b+a
2) (a+b)+c=a+(b+c)
3) n+0=n
4) c(a+b)=ca+cb
5)n-0=n
please help and answer all i will mark brainliest !

Answer:

4.7

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Step-by-step explanation:

Step 1: Define

14.9 + 1/3(-12 - 27x) - 33.2

x = -3

Step 2: Evaluate

The students can be divided into 20 groups, each with the same number of math students.

To find the greatest number of groups possible with the same number of math students, we need to find the greatest common divisor (GCD) of the total number of math students and the total number of students in the class.

Let's say there are "m" math students and "t" total students in the class. To find the GCD, we can divide the larger number (t) by the smaller number (m) until the remainder becomes zero.

For example, if there are 20 math students and 80 total students, we divide 80 by 20.

The remainder is zero, so the GCD is 20.

This means that the students can be divided into 20 groups, each with the same number of math students.

In general, if there are "m" math students and "t" total students, the greatest number of groups possible will be equal to the GCD of m and t.
In conclusion, to find the greatest number of groups with the same number of math students, you need to find the GCD of the total number of math students and the total number of students in the class.

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According to the statement the correct answer is option C - yes, the data are distributed evenly around the line of fit.

To determine if a model is a good fit for a data set, one needs to evaluate how closely the data points align with the line of fit. The line of fit represents the best possible straight line that can be drawn through the data points. If the data points are too far from the line of fit or too close to the line of fit, then it is an indication that the model is not a good fit for the data.
Option A states that the data points are too far from the line of fit, indicating that the model is not a good fit for the data. Option B states that the data points are too close to the line of fit, which is not necessarily a good or bad thing as it depends on the level of accuracy required for the analysis. Option C states that the data points are evenly distributed around the line of fit, which indicates that the model is a good fit for the data. Lastly, option D states that the line of fit touches at least one point in the data set, which is not sufficient to determine if the model is a good fit for the entire data set.
Therefore, the correct answer is option C - yes, the data are distributed evenly around the line of fit.

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X=5/7

please note on step 3 that i divided both sides by the coefficient of X

Answer:

7/5 or 1.4

Step-by-step explanation:

7/2x+1/2=3

CLT

7/2x=3-1/2

7/2x=5/2

cross multiply

10x=14

divide both sides by 10

10x/10=14/10

x=14/10

x=1.4 or 7/5

Answer:

C. Print Nothing

Step-by-step explanation:

For those who don't wanna read

Answer:

The program is going to print nothing because the script does not tell it to say anything other than when the grade (x) is greater than 90.

Therefore,the correct option is 3, print nothing

Answer:

it's answer is 10/-15.........

The investment's expected return is 5.95%.

The expected return of an investment is calculated by multiplying the probabilities of each possible return by their respective returns and summing them up. In this case, Gautney Enterprises has provided the probabilities and returns for the investment. By applying the formula, we find that the expected return is 5.95%.

To calculate the standard deviation, we need to determine the variance first. The variance is computed by taking the difference between each possible return and the expected return, squaring those differences, multiplying them by their respective probabilities, and summing them up. Once we have the variance, the standard deviation is simply the square root of the variance. The standard deviation measures the degree of risk associated with an investment.

In this scenario, the expected return of the investment is 5.95%, but we need to consider the standard deviation as well to assess the risk. If the standard deviation is high, it indicates a greater level of uncertainty and potential volatility in returns. A low standard deviation implies a more stable investment.

Without the specific values for each return and their respective probabilities, we cannot calculate the exact standard deviation. However, Gautney Enterprises should compare the calculated expected return and the associated standard deviation to their risk tolerance and investment objectives. If the expected return meets their desired level of return and the standard deviation aligns with their risk appetite, they may consider investing in this security.

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The surface area of the net is 45 square inches.

A rectangular prism is a three-dimensional geometric shape that is composed of six rectangular faces, eight vertices, and 12 edges. It is also known as a rectangular parallelepiped or simply a rectangular box. A rectangular prism is different from a cube because its faces are rectangles of different dimensions.

A rectangular prism has several properties that make it useful in mathematics and engineering. Its faces are all rectangles, which means that it has uniform symmetry along two of its axes. It is also a prism, which means that its faces are parallel and congruent, and its lateral faces are all parallelograms.

The volume of a rectangular prism can be calculated by multiplying the length, width, and height of the prism. For example, if a rectangular prism has a length of 4 units, a width of 3 units, and a height of 2 units, its volume would be 4 x 3 x 2 = 24 cubic units. The surface area of a rectangular prism can be calculated by adding up the areas of all of its faces.

Rectangular prisms are used in many real-world applications, such as in architecture, engineering, and manufacturing. They can be used as building blocks for structures and machines, as well as in the design of containers and packaging. Rectangular prisms also have applications in mathematics and computer science, where they are used to model and analyze a variety of problems, such as optimization, data compression, and algorithms.

To find the surface area of the net, we need to find the area of each of the six faces and add them together.

Face 1: 2 in x 2 in = \(4 in^2\)

Face 2: 2 in x 5 in =\(10 in^2\)

Face 3: 3 in x 5 in = \(15 in^2\)

Face 4: 3 in x 2 in =\(6 in^2\)

Face 5: 2 in x 2 in = \(4 in^2\)

Face 6: 2 in x 3 in = \(6 in^2\)

Adding these up, we get:

4 + 10 + 15 + 6 + 4 + 6 = 45

Therefore, the surface area of the net is 45 square inches.

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High-def television sets would probably be distributed using an intensive strategy. Therefore, option B. is correct.

Intensive distribution refers to a strategy where a product is made widely available through as many outlets as possible. This strategy is typically employed for products that have high demand, are low-cost, and require extensive market coverage. In the case of high-definition television sets, they are popular consumer electronics with a significant market demand.

To determine whether intensive distribution is suitable for high-def television sets, we consider the characteristics of the product. High-definition television sets are relatively low-cost compared to other options in the market, and they are in demand by a broad range of consumers. These factors suggest that an intensive distribution strategy would be appropriate for this product.

Based on the analysis, high-def television sets would most likely be distributed using an intensive strategy. This approach would ensure broad availability and accessibility for consumers, leveraging the product's popularity and fulfilling market demand. By making these television sets widely accessible through multiple outlets, manufacturers can reach a larger customer base, maximize sales potential, and effectively compete in the consumer electronics market.

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A study that examines the relationship of rainfall and amount of corn grown per acre in a region best exemplifies descriptive statistics.

A descriptive statistic is a summary statistic that quantitatively describes or summarizes features from a collection of information, while descriptive statistics is the process of using and analyzing those statistics.

Descriptive statistics can be useful for two purposes:

1) to provide basic information about variables in a dataset and

2) to highlight potential relationships between variables.

Given are the examples describing the descriptive statistics.

A study that examines the relationship of rainfall and amount of corn grown per acre in a region best exemplifies descriptive statistics.

Therefore, a study that examines the relationship of rainfall and amount of corn grown per acre in a region best exemplifies descriptive statistics.

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Answer:

24.413

Step-by-step explanation:

Break the shape up into 2 triangles and 1 rectangle, then add up the 3 areas.

Rectangle:  4.6 x 3.15 = 14.49

Triangle 1:  1/2(3.3)(3.15) = 5.1975

Triangle 2: 1/2(3)(6.3 - 3.15) = 4.725

Total area = 14.49 + 5.1975 + 4.725 = 24.413

Answer:

The statement {g | g > 6} is read as "the set of all g such that g is greater than 6".

The equation that represents the slope-intercept form of the given graph is y = x + 4.

The slope-intercept form of a linear equation is an equation that is written or expressed in the form y = mx + b. In this situation, m is the slope of the line, and b is the y-intercept, which is the point where the line crosses the y-axis.

Now, if we have two coordinate points, (-1,3), (0,4). We need to first determine the slope of the graph.

Slope = change in the y-axis/change in x-axis

Slope = y_2 - y_1/ x_2 - x_1

Slope = 4 - 3/ 0- - 1

Slope = 1/ 1

Slope = 1

y-intercept  = 4

Thus, in form of y = mx + b, the slope-intercept form of the linear equation can be written as y = x + 4

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To convert 21.73 m to customary units, we need to use the conversion factors as follows:

meter = 39.37 inches1

inch = 2.54

cm1 foot

= 12 inches

We have:

21.7.

3 m

= 21.73 x 39.37 inches (since 1 mete

r = 39.37 inches)

= 856.301 inches

= 71 feet 4.3 inches (since 1 foot = 12 inches)

The smallest tick mark on

1" = 1' 0"

architect’s scale is 1/16 inch.

This means that there are 16 tick marks in an inch. A fractional ruler was used for scale measurements of a line on the 1/4" = 1'-0" scale. The two ends of the line correspond to 6 2.7/4" and 9 6/8". To get the length of the line in inches, we need to convert the two ends to inches, then subtract them to get the length as follows:

\(6 2.7/4" \\= 6 x 12 + 2.7\\ = 74.7"  (since 1 foot\\ = 12 inches)\\9 6/8" = 9 x 12 + 6 \\= 114" (since 1 foo\\t = 12 inches)\)

Length of the line = 114 - 74.7 = 39.3 inches (rounded off to one decimal place)

Multiplying 3/5 by

\(17/13\\ gives:\\3/5 x 17/13\\= (3 x 17)/(5 x 13)\\= 51/65\)

This is already in its lowest form.

Therefore, the answer is:51/65 (an improper fraction)

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Answer:

4, -8, 16

scale factor = x-2

4, -8, 16, -32, 64, -128, 256, -512, 1024, -2048, 4096, -8192, 16384

answer = 16,384

Answer:

-4

Step-by-step explanation:

Answer:

y = 1/3x - 3

Step-by-step explanation:

Answer:

Can we get 24p-23 exactly

The probability that the person participates in at least one school-sponsored activity given that the student works part-time is 0.58.

The possibility of an event or outcome occurring based on the existence of a prior event or outcome is known as conditional probability.

Assume that events A and B are two independent occurrences with probabilities P(A) and P(B), respectively, such that the probability that event B will occur given that event A is given by: P(B|A) = P(A∩B)/P (A)

Given:

Percentage of the students who have part-time jobs, P(A) = 73%

Percentage of the students who participate in at least one school-sponsored activity, P(B)= 65%

Percentage of the students who work part-time and participate in at least one school-sponsored activity, P(A∩B) = 42%

The probability that the person participates in at least one school-sponsored activity given that the student works part-time is:

P(B|A) = P(A∩B)/P(A)

          = 42/73

          = 0.58

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Answer:

0.575

Step-by-step explanation:

nice job

Answer: 1344?

Step-by-step explanation:

Answer:

1344

Step-by-step explanation:

hope this helps

Answer:

120$ 60$

Step-by-step explanation:

The total cost 161+19=180

180X150%=180×1.5

=                 = 120  

150%=15, the rule of multiplication

" Stefan spend originally $120. 180-120=60

He make $60 by selling the bicycle and helmet to Jin.

A table of equivalent ratios for the number of treasure chests and hours that Hannah recovered is as follows:

Treasure chests      Hours

8                                  4

12                                 6

10                                 5

In order to have a proportional relationship and equivalent ratios, the variables x and y must have the same constant of proportionality.

Next, we would determine the constant of proportionality (k) as follows:

Constant of proportionality (k) = y/x

Constant of proportionality (k) = 4/8

Constant of proportionality (k) = 0.5.

When hours y = 6, the number of treasure chests x is given by:

x = y/k

x = 6/0.5

x = 12.

When treasure chests x = 10, the number of hours y is given by:

y = kx

y = 0.5(10)

y = 5.

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Complete Question:

Hanna is recovering hundreds of treasure chests from an ancient shipwreck. She is able to recover 8 chests every 4 hours.

Complete the table using equivalent ratios. Select all the answers that will fill the table.

the equation for the level surface passing through the point (3, 0, 1) is x + 2y - 3z = 0. The given function is f(x, y, z) = (x - y + 2z) / (2x + y - z). We are asked to find an equation for the level surface passing through the point (3, 0, 1).

To find the equation for the level surface, we need to set the function equal to a constant value and solve for z.

Let's start by substituting the coordinates of the given point into the function:

f(3, 0, 1) = (3 - 0 + 2(1)) / (2(3) + 0 - 1)
           = 5 / 5
           = 1

So, the constant value for the level surface passing through (3, 0, 1) is 1.

Now, let's set the function equal to 1 and solve for z:

1 = (x - y + 2z) / (2x + y - z)

Cross-multiplying, we get:

2x + y - z = x - y + 2z

Rearranging the terms, we have:

x + 2y - 3z = 0

Therefore, the equation for the level surface passing through the point (3, 0, 1) is x + 2y - 3z = 0.

In summary, the equation for the level surface passing through the point (3, 0, 1) is x + 2y - 3z = 0.

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The profit, represented by \(px - C(x)\), can be calculated using the cost function  \(C(x) = 15 + 2x\)  and the equation \(p + x = 25\). The specific expression for profit will depend on the values of p and x.

\(C(x) = 15 + 2x\)

To find the profit, we need to substitute the given equations into the profit equation \(px - C(x)\). Let's solve it step by step:

From the equation \(p + x = 25\), we can rearrange it to solve for p:

\(p = 25 - x\)

Now, substitute this value of p into the profit equation:

Profit \(= (25 - x) * x - C(x)\)

Next, substitute the cost function :

Profit \(= (25 - x) * x - (15 + 2x)\)

Expanding the equation:

Profit \(= 25x - x^2 - 15 - 2x\)

Simplifying further:

Profit \(= -x^2 + 23x - 15\)\(= -x^2 + 23x - 15\)

The resulting expression represents the profit as a function of the number of items made, x. It is a quadratic equation with a negative coefficient for the \(x^2\) term, indicating a downward-opening parabola. The specific values of x will determine the maximum or minimum point of the parabola, which corresponds to the maximum profit.

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Answer:

Step-by-step explanation:

The false statement concerning either the Allowable Increase or Allowable Decrease columns in the Sensitivity Report is: "The values equate the decision variable profit to the cost of resources expended."

The Allowable Increase and Allowable Decrease columns in the Sensitivity Report provide important information about the sensitivity of the optimal solution to changes in the model parameters. Specifically, they help determine the range over which an objective function coefficient or a constraint's right-hand side (resource value) can change without impacting the optimal solution.

However, the statement that the values in these columns equate the decision variable profit to the cost of resources expended is false. The Allowable Increase and Allowable Decrease values do not directly relate to the decision variable profit or the cost of resources expended. Instead, they provide insights into the flexibility or sensitivity of the model's solution to changes in specific parameters. They allow for understanding when alternate optimal solutions exist and provide guidance on the acceptable range of changes for objective function coefficients or shadow prices without affecting the optimal solution.

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Answer: B.having $450.22 in your checking account and writing a check for $462.05.

Step-by-step explanation: took the quiz.

\( \frac{y}{4} = - 3\)

\(y = - 3 \times 4\)

\(y = - 12\)

Multiplication would be used.