Number 30-33 PLS HELP WILL BE BRAINLIEST AND GET 50 POINTS !!!

The expression is 6 times 1 equals 6/6 + 2 = 8

Expression:

An expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.

Let's say P is worth 1

9 times 1 equals 9

3 times 1 equals 3

9 - 3 = 6

6 + 2 = 8

So the expression equivalent to 9p minus 3p 2 is 8.

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Here we need to see which axioms or properties are used in each case.

A: ab²×0 = 0

Here we have a given number (ab²) times zero, and the outcome is zero. This comes from the existence of zero, which states that there must exist a value that represents nothingness, the zero, such that the product between any number and this one is zero.

B: (7 + 5) + 1 = 7 + (5 + 1)

This is the associative property of addition, which says that we can perform the addition in any order we want.

C:  6 = 6

This is the reflexive property of equality, which says that every number is equal to itself.

D: 7(x – 3) = 7x - 21

This is the distributive property, which says that:

C*(A + B) = C*A + C*B

We can see that if we apply it to the left side we get:

7(x - 3)  = 7x - 7*3 = 7x - 21

E:  x + (-x) = 0

This is the existence of the opposite number. This property says that for any real number N there exists a real number A such that:

N + A  = 0

Particularly, in the real set, we can see that A = -N

G: (a + b) + 0 = 0 + (a + b)

Here we can see that the order changes in the addition, this is the commutative property of the addition, which says that:

A + B = B + A

So the elements in the sum can commute.

H: if x = -1, and -1 = z, then x = z

This is the transitive property, we can apply it in the next way:

x = -1 = z

then x = z

So if both variables are equal to the same number, then the variables are equal.

I: 4x×1 = 4x

This is the existence of the identity with respect to multiplication. It says that there exist a number A such that for any number X, the product between A and X is equal to X:

X*A  =X

Particularly, A = 1.

X*1 = X.

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Answer:

Step-by-step explanation: I also need help

Answer:

C took the test

Step-by-step explanation:

Answer:

(13, 5)

Step-by-step explanation:

The coordinate of the vertex will be

Coordinates are a set of values which helps to show the exact position of a point in the coordinate plane.

A coordinate plane is a 2D plane which is formed by the intersection of two perpendicular lines known as the x-axis and y-axis.

Given:

we have the coordinates of hexagon here, the vertices are as follows

(2, 5), (5, 1), (5, 9), (10, 1) and (10, 9)

As, the five vertices are given.

Now, we have to find the sixth vertex can be insight of vertex y=5 to get the equal length of side.

Thus, the vertex of last coordinate is (5, 13)

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Answer:

slope of 9

Step-by-step explanation:

parallel means never touching, so it would have the same slope.

Hope this helps!

Answer:

Step-by-step explanation:

What am I supposed to do? If you don’t mind me asking. Like I’m not trying to waste your points at all just I’m confused I can def help tho if you tell me what I need to do

Answer:

Huh-?

Step-by-step explanation:

Answer:

x/7 + 9 = 6

Step-by-step explanation:

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The appropriate alternative hypothesis would be that the market share percentage is 60%.

This is the left-tailed test.

The null and alternative hypothesis is

H0 :  p =60%

Ha : p <60%

answer most 60%

Speculation in a scientific context is a testable declaration about the connection among two or extra variables or a proposed reason for some located phenomenon. For a hypothesis to be a systematic hypothesis, the medical method calls for you could test it. Scientists typically base clinical hypotheses on preceding observations that can't satisfactorily be explained with the available scientific theories. despite the fact that the words "speculation" and "idea" are frequently used interchangeably, a systematic hypothesis isn't the same as a scientific theory.

In not unusual usage in the 21st century, speculation refers to a provisional idea whose advantage calls for assessment. for correct evaluation, the framer of a hypothesis needs to outline specifics in operational terms. Speculation requires greater work through the researcher with a view to both affirm or disprove it.

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Complete Question:

A marketing research firm is planning a study to test whether the market share that a new product will capture during its first year on the market is at most 20 percent. After setting up the null and alternative hypotheses, the appropriate alternative hypothesis would be that the market share percentage is:

Group of answer choices

at most 20%

at least 20%

greater than 20%

not equal to 20%

less than 20%

Answer:

5g+14 and -2+5g

Step-by-step explanation:

Answer:

The positive difference in the 'y' coordinates of where they agreed to meet and where they should actually meet is 4

Step-by-step explanation:

The segement they form is, using the distance formula,

\(d=\sqrt{((x1-x2)^2+(y1-y2)^2)}\)

but since we only need to find the y coordinates,

we do not need it in this case

now ,

in our case, x1 = 5, y1 = -11

x2=-7, y2=13

so,

y1-y2 is the total y difference for the first points,

so d1=-11-13

d1 = -24

but since distance is positive,so,

d1 = 24

and the midpoint of that would be m= d/2,

m1 = 12

if Barbara is at (-5,5), then the distance will be,

since then, x2=-5,y2=5,

d2 = -11-5

d2=-16

or,

d2 = 16

and

m2 = 16/2

m2 = 8

so the positive difference in the 'y' coordinates of where they agreed to meet and where they should actually meet is,

diff = 12-8

diff = 4

so the difference in y coordinates is 4

The percentage of the population in decimal is p=0.42

The mean of the sample of the binomial distribution=75.6

The standard deviation of the sample of the binomial distribution=6.622

How to convert a decimal to a percentage?

To convert a decimal number into a percentage value, multiply the decimal by 100.

What is binomial distribution?

The binomial distribution gives out either success or failure as two possible results in an experiment, is the discrete probability distribution used in probability theory and statistics.

Given that,

p = 42% = 0.42

q = 1 - p = 1 - 0.42 = 0.58

n = 180

Using the binomial distribution,

mean = \(n \times p\) = \(180 \times 0.42\) = 75.6

standard deviation = \(\sqrt{n \times p \times q}\) = \(\sqrt{180 \times 0.42 \times 0.58}\) = 6.622

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The percentage of the population in decimal is p=0.42

The mean of the sample of the binomial distribution=75.6

The standard deviation of the sample of the binomial distribution=6.622

How to convert a decimal to a percentage?

To convert a decimal number into a percentage value, multiply the decimal by 100.

What is binomial distribution?

The binomial distribution gives out either success or failure as two possible results in an experiment, is the discrete probability distribution used in probability theory and statistics.

Given that,

p = 42% = 0.42

q = 1 - p = 1 - 0.42 = 0.58

n = 180

Using the binomial distribution,

mean =   75.6

standard deviation =  6.622

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The equation of the graphed function is given as follows:

f(x) = x³ + 2x² - 5x - 6.

The equation of the function is obtained considering the Factor Theorem, as a product of the linear factors of the function.

From the graph, the zeros of the function are:

Hence the function is:

f(x) = a(x + 3)(x + 1)(x - 2).

In which a is the leading coefficient.

Expanding the product, we have that:

f(x) = a(x² + 4x + 3)(x - 2)

f(x) = a(x³ + 2x² - 5x - 6).

When x = 0, y = -6, hence the leading coefficient a is obtained as follows:

-6a = -6

a = 1.

Hence the function is:

f(x) = x³ + 2x² - 5x - 6.

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Step-by-step explanation:

a vending machine has a total Of 41 chocolate bars and bags of pretzels the number of chocolate bars is one less than twice the number of bags and pretzels how many. Chocolate bars are under the vending machine

The decrease in diameter of the bar due to the applied load is -0.005434905d and the final diameter of the bar is 1.005434905d.

A compressive load of 80,000 lb is applied to a bar with a circular section of 0.75 in diameter and a length of 10 in.

if the modulus of elasticity of the bar material is 10,000 ksi and the Poisson's ratio is 0.3.

We have to determine the decrease in diameter of the bar due to the applied load.

Let d be the initial diameter of the bar and ∆d be the decrease in diameter of the bar due to the applied load, then the final diameter of the bar is d - ∆d.

Length of the bar, L = 10 in

Cross-sectional area of the bar, A = πd²/4 = π(0.75)²/4 = 0.4418 in²

Stress produced by the applied load,σ = P/A

= 80,000/0.4418

= 181163.5 psi

Young's modulus of elasticity, E = 10,000 ksi

Poisson's ratio, ν = 0.3

The longitudinal strain produced in the bar, ɛ = σ/E

= 181163.5/10,000,000

= 0.01811635

The lateral strain produced in the bar, υ = νɛ

= 0.3 × 0.01811635

= 0.005434905'

The decrease in diameter of the bar due to the applied load, ∆d/d = -υ

= -0.005434905∆d

= -0.005434905d

The final diameter of the bar,

d - ∆d = d + 0.005434905d

= 1.005434905d

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Answer:

-4

Step-by-step explanation:

3+1 = 4 so just put a dash at the start and you ger -4

Answer:

The dependent variable is the number of plays he carries the ball.

The independent variable is the number of touchdowns he scores.

The dependent variable is the number of yards he gains.

Step-by-step explanation:

Tom's coach keeps track of the number of plays that Tom carries the ball and how many yards he gains. Select all the statements about independent and dependent variables that are true.

The dependent variable is the number of plays he carries the ball.

The independent variable is the number of plays he carries the ball.

The independent variable is the number of touchdowns he scores.

The dependent variable is the number of yards he gains.

The dependent variable is the number of touchdowns he scores.

y = kx

y = dependent variable. it is the variable that is explained by the dependent variable

x = is the variable that explains the dependent variable

Both functions decrease at (-1, 2)

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The polynomial function f(x) is represented by the graph.

From the graph, the polynomial function decreases at (-2, 2)

The absolute function is given as;

f(x) = =5|x + 1| + 10

The vertex of the above function is

Vertex = (-1, 10)

Because a is negative (a= -5), the vertex is a maximum.

This means that the function decreases at (-1, ∞)

So, we have

(-2, 2) and (-1, ∞)

Combine both intervals

(-1, 2)

This means that both functions decrease at (-1, 2)

See attachment 2 for the number line that represents the interval where both functions are decreasing

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The subsets at the specified positions are

150th position: {x4, x2, x1}

200th position: {x7, x6, x4, x3}

250th position: {x7, x6, x5, x4, x3, x2, x1}

To determine which subsets are at the 150th, 200th, and 250th positions in the list of subsets of the set S = {x7, x6, ..., xl, xo} using the base 2 arithmetic generating scheme, we need to understand how the subsets are generated and assigned positions.

The base 2 arithmetic generating scheme generates subsets by using binary numbers. Each element in the set S corresponds to a binary digit, where 1 represents the inclusion of the element in the subset and 0 represents the exclusion.

Since the given set S has a range of elements from x7 to xo, we can assume that there are a total of 8 elements in the set. Therefore, there are 2^8 = 256 possible subsets.

To find the position of a specific subset in the list, we need to convert the binary representation of the subset into a decimal number. The position in the list corresponds to the decimal representation of the binary number.

Let's calculate the positions for the given subsets:

1. For the 150th subset:

To find the binary representation of the subset at the 150th position, we convert 150 to binary, which is 10010110. Since the set has 8 elements, we pad the binary number with leading zeros to make it 8 digits long: 0010010110. Now we can determine the corresponding subset by looking at the positions where there is a 1 in the binary number: {x4, x2, x1}. Therefore, the subset at the 150th position is {x4, x2, x1}.

2. For the 200th subset:

Converting 200 to binary gives us 11001000. Padding it with leading zeros to make it 8 digits long: 0011001000. The corresponding subset with 1s in the binary number positions is {x7, x6, x4, x3}. Hence, the subset at the 200th position is {x7, x6, x4, x3}.

3. For the 250th subset:

Converting 250 to binary yields 11111010. Padding it with leading zeros: 0011111010. The subset with 1s in the binary positions is {x7, x6, x5, x4, x3, x2, x1}. Thus, the subset at the 250th position is {x7, x6, x5, x4, x3, x2, x1}.

In summary, the subsets at the specified positions are as follows:

150th position: {x4, x2, x1}

200th position: {x7, x6, x4, x3}

250th position: {x7, x6, x5, x4, x3, x2, x1}

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Answer:

92%

Step-by-step explanation:

To convert a fraction to a percent, you can divide the numerator by the denominator to end up with a decimal, in this case 0.92. Then, to convert to a percent, move the decimal two places to the left. As a result, we have 92%.

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An interval variable is one that has numerical values and still makes sense when you average the data values. This type of variable is used in statistics and data analysis to measure continuous data, such as temperature, time, or weight.

Interval variables are based on a scale that has equal distances between each value, meaning that the difference between any two values is consistent throughout the scale.

Interval variables can be used to create meaningful averages or means. The arithmetic mean is a common method used to calculate the average of interval variables. For example, if a researcher is studying the temperature of a city over a month, they can use interval variables to represent the temperature readings. By averaging the temperature readings, the researcher can calculate the mean temperature for the month.

In summary, interval variables are essential in statistics and data analysis because they can be used to measure continuous data and create meaningful averages. They are based on a scale with equal distances between each value and are commonly used in research studies.

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Answer:

Numbers are 29 and 34

Step-by-step explanation:

Let x = one number

let y = second number

x + y = 63

x - y = 5

substitution method, x = 5 + y

5 + y + y = 63

2y + 5 = 63

2y = 58

y = 29

Find value of x:  x - 29 = 5

x = 34

A statistical question is a question that can be answered by collecting data and analyzing it. In this case, the statistical questions are B, C, and E.

Statistical questions are open-ended and require data collection and analysis, while non-statistical questions have specific answers. B asks for the number of points the team scored in each game it played, which can be recorded and analyzed to find trends and patterns in the team's performance. C asks for the number of points the team scored in each of its home games, which is a more specific subset of data that can also be analyzed for patterns and trends.
E asks for the percentage of shots each of the team's players make, which requires collecting data on each player's shots taken and shots made. A and D are not statistical questions because they have specific answers that cannot be analyzed for patterns or trends. A asks for a specific number of points Lisa scored in one game, and D asks for the player who scored the most points in a specific game.

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In order to determine the practical significance requires considering both the effect size measures and the context of the study

One way to determine practical significance is by using effect size measures. Effect size is a standardized measurement of the magnitude of a treatment or intervention.

A common equation used to calculate effect size is Cohen's d, which is the difference between the means of two groups divided by the standard deviation.

Another equation used is the odds ratio, which is the ratio of the odds of an event occurring in one group compared to another.

Additionally, it is important to consider the context of the study when evaluating practical significance.

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The ogive is a line graph that plots the cumulative relative frequency distribution.

An ogive, also known as a cumulative frequency polygon, is a line graph that shows the cumulative frequency distribution of a data set. The cumulative frequency is calculated by adding up the frequencies of each value up to a certain point in the data set.

The cumulative relative frequency is calculated by dividing the cumulative frequency by the total number of observations in the data set. The ogive plots these cumulative relative frequencies against the corresponding values in the data set, usually on the x-axis.

By plotting the cumulative relative frequencies, the ogive shows how the data is distributed over the entire range of values. It can be used to identify patterns in the data, such as whether it is skewed or symmetrical. It is also useful for determining percentiles, as the percentile for a given value can be read directly from the ogive.

Overall, the ogive is a helpful tool for summarizing and visualizing the distribution of a data set, particularly when dealing with large data sets or complex distributions.

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Answer:

The answer is 11/20.

Answer:

\(40x = 60(x - 1) \\ \\ 2x = 3x - 3 \\ \\ x = 3 \\ \\ \\ 7 \times \frac{7x}{2} - 29x = - 9 \\ \\ 49x - 58x = - 18 \\ \\ - 9x = - 18 \\ \\ x = 2\)

Answer:

Answer:

x = 3

y = 2

Step-by-step explanation:

1. Three examples of situations where consistency is important:

Healthcare: when treating patients, healthcare providers must follow consistent procedures and protocols to ensure that every patient receives the same level of care.

Financial transaction: when making financial transactions, it is important to follow regular security rules to prevent fraud.

Support rules: Adherence to consistent rules and regulations in sports is essential to ensure fair play and the safety of all participants.

2. The number 0 is important in mathematical systems because it represents the absence of a number and serves as a placeholder. Without zero, our mathematical system would be affected in many ways. For example, writing the number 100 would be difficult without the zero. Without the invention of zero, progress in mathematics would have been delayed.

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