SOMEONE HELP ME PLEASE ILL GIVE BRAINLIEST!

The complement of set A, denoted by ​ A`, is the collection of all elements that belong to the universal set but are not part of set A. It's not necessary to mention the universe (also known as U) if it's understood which set of elements is being referred to.

The complement of a set A is the collection of all elements that belong to the universal set but not to set A. It is denoted as ​ A` and does not include any elements that are already in set A. The universal set, also known as U, contains all possible elements and is assumed to be known. Therefore, when referring to the complement of a set, it is not necessary to mention the universal set explicitly. The complement of a set is useful in determining the set of elements that are not part of a particular set, and it can be used in various mathematical operations.

Learn more about mathematics here: brainly.com/question/24600056

#SPJ4

Answer:

Read Below

Step-by-step explanation:

5 + 19 = d

= 19 + 5 = 74

Here is a tree diagram that shows all the possible ways to choose 2 balls from a set of blue, red, and green balls,

where you are allowed to choose two of the same color:

Copy code

    B           R           G

  /   \       /   \       /   \

 B     B     R     R     G     G

/ \   / \   / \   / \   / \   / \

B   B B   B R   R R   R G   G G   G

Alternatively, we can list all the probability ways to choose 2 balls:

Blue and blue

Blue and red

Blue and green

Red and blue

Red and red

Red and green

Green and blue

Green and red

Green and green

Note that we have included all possible combinations, including duplicates (e.g., blue and red and red and blue).

To know more about probability click here

brainly.com/question/15124899

#SPJ11

Answer:

89

Step-by-step explanation:

The y intercept is the value when x = 0

Even when you have 0 hours you still have to pay the service fee

The equation is

y = 35x+89

The y intercept is 89

The theorem that provides a method for revising probabilities to reflect new information is Bayes' theorem.

Bayes' theorem is a fundamental concept in probability theory and statistics that provides a way to update or revise probability estimates based on new or additional information.

It is named after the English statistician Thomas Bayes, who first formulated the theorem in the 18th century. Bayes' theorem is widely used in various fields such as science, engineering, medicine, finance, and artificial intelligence.

It is an essential tool for solving problems related to decision making, prediction, and classification.

Bayes' theorem is based on conditional probability, which describes the probability of an event given that another event has occurred. The theorem provides a formula for calculating conditional probabilities and allows for the incorporation of new information or evidence into the probability estimate.

To know more about probability refer to-

https://brainly.com/question/30034780

#SPJ11

The mean score is 14.

The median score is also 14, and the mode score is not applicable as there is no score that appears more than once.

To find the mean score, we add up all the scores and divide by the total number of scores:

(10 + 12 + 14 + 16 + 18 + 0 + 2 + 10 + 20) ÷ 9 = 14

Therefore, the mean score is 14.

To find the median score, we arrange the scores in order from smallest to largest:

0, 2, 10, 10, 12, 14, 16, 18, 20

There are nine scores, so the median is the middle score, which is 14 in this case.

Finally, to find the mode score, we look for the score that appears most frequently. However, in this case, there is no score that appears more than once, so there is no mode score.

For more questions like Mean click the link below:

https://brainly.com/question/31101410

#SPJ11

The probability that a randomly selected person will have an IQ score of less than 80 is approximately 0.0918, or 9.18%

To find the probability that a randomly selected person will have an IQ score of less than 80, we need to consider the properties of the normal distribution, as IQ scores typically follow a normal distribution with a mean (μ) of 100 and a standard deviation (σ) of 15.

1. Calculate the z-score: The z-score represents the number of standard deviations a data point is from the mean. Use the formula:

z = (X - μ) / σ

where X is the IQ score, μ is the mean, and σ is the standard deviation.

z = (80 - 100) / 15
z = -20 / 15
z = -1.3333

2. Look up the z-score in a standard normal distribution table or use a calculator to find the corresponding probability. In this case, the probability is 0.0918.

Therefore, the probability that a randomly selected person will have an IQ score of less than 80 is approximately 0.0918, or 9.18% when rounded to four decimal places.

To know more about Probability refer here:

https://brainly.com/question/30034780

#SPJ11

Answer:

The formula for the point biserial correlation coefficient is:

point biserial correlation formula

M1 = mean (for the entire test) of the group that received the positive binary variable (i.e. the “1”).

M0 = mean (for the entire test) of the group that received the negative binary variable (i.e. the “0”).

Sn = standard deviation for the entire test.

p = Proportion of cases in the “0” group.

q = Proportion of cases in the “1” group.

Most people won’t work this formula by hand as most statistical software packages can calculate the coefficient for you.

To determine which differential equation(s) are linear, we need to examine the form of each equation. A linear differential equation is one that can be written in the form a(x)y" + b(x)y' + c(x)y = g(x), where a(x), b(x), c(x), and g(x) are functions of x.

The differential equation 2xy" - 5xy' + y = sin(3x) is linear. It can be written in the form a(x)y" + b(x)y' + c(x)y = g(x), where a(x) = 2x, b(x) = -5x, c(x) = 1, and g(x) = sin(3x).
The differential equation (v)² + xy = In(x) is not linear. It does not follow the form a(x)y" + b(x)y' + c(x)y = g(x) because it contains a term with (v)², where v represents the derivative of y with respect to x. This term does not have a linear coefficient.
The differential equation y' + sin(y) = e^(3x) is linear. It can be written in the form a(x)y' + b(x)y = g(x), where a(x) = 1, b(x) = sin(y), and g(x) = e^(3x).
The differential equation (x²+1)y" - 3y - 2x³y = -x - 9 is not linear. It does not follow the form a(x)y" + b(x)y' + c(x)y = g(x) because it contains a term with (x²+1)y", where the coefficient is a function of x.
The differential equation y' + xy = y" is linear. It can be written in the form a(x)y' + b(x)y = g(x), where a(x) = 1, b(x) = x, and g(x) = y".

Learn more about differential equation here
https://brainly.com/question/32524608



#SPJ11

Answer:

4y^2 - 9x^2 = -36

Step-by-step explanation:

x = 2 sec t

y = 3 tan t

x^2 = 4 sec^2 t

y^2 = 9 tan^2 t

Now sec^2t = 1 + tan^2 t so we have:

4(1 + tan^2 t) + 9 tan^2 t = x^2 + y^2

4 + 13 tan^2 t = x^2 + y^2

13 tan^2 t = x^2 + y^2/ - 4

tan^2 t = x^2/13 + y^2/13 - 4/13

But , from the second equation tan t =  y/3 so tan^2 t = y^2/9, so:

y^2/9 =  x^2/13 + y^2/13 - 4/13

LCM of 9 and 13 is 117 so multiply thru by 117:

13y^2 = 9y^2 + 9x^2- 36

4y^2 - 9x^2 = -36

(a) P(En(FUG)) = P(E)P(FUG) found by using the multiplication rule of probability.

Using the multiplication rule of probability, we have P(En(FUG)) = P(En∩F∩G) = P(E)P(F)P(G), since E, F, and G are independent events. Therefore, P(En(FUG)) = P(E)P(FUG).

(b) We want to show that P(A∩B) = P(A)P(B), given that A and B are independent events. Using the definition of independent events, we know that P(A∩B) = P(A)P(B|A) = P(A)P(B), since P(B|A) = P(B) by the independence of A and B. Therefore, A and B are independent events.

(c) To determine whether X and Y are independent, we need to check if P(X=x∩Y=y) = P(X=x)P(Y=y) for all x and y. We have P(X=0∩Y=0) = 1/2, P(X=0) = 1/2, and P(Y=0) = 1/2.

Therefore, P(X=0∩Y=0) ≠ P(X=0)P(Y=0), which implies that X and Y are not independent. In fact, we can compute all possible joint probabilities and see that none of them satisfy the condition for independence.

For more questions like Probability click the link below:

https://brainly.com/question/30034780

#SPJ11

Answer:

$1761

Step-by-step explanation:

9*5=45

36.80*45=1656

21*5=105

1656+105=1761

The statement 'When all the points fall on the regression line, the correlation coefficient, r would equal + 1 or -1. If the relationship is negative, then "r " = -1; if positive, then"r" = +1' is false because  When all the points fall on the regression line, the correlation coefficient, r would equal + 1 or -1 regardless of whether the relationship is positive or negative.

The statement is false because the correlation coefficient, r, is a measure of the strength and direction of the linear relationship between two variables, and it ranges from -1 to +1 regardless of whether all the points fall on the regression line or not.

If all the points fall on the regression line, then the correlation coefficient, r, will be either +1 or -1, but this is not determined by whether the relationship is positive or negative.

If the relationship is positive, then r will be positive, and if the relationship is negative, then r will be negative. The sign of r simply indicates the direction of the linear relationship, while the magnitude of r indicates the strength of the relationship.

To learn more about regression line, click here:

https://brainly.com/question/7656407

#SPJ11

Answer:-22/3

Step-by-step explanation:

its negative because it represents an irrational number

Answer: -22/3

Why: It's irrational since it's negative

Answer:

The maximum number of text messages you can send per month would be 41.

Step-by-step explanation:

1. First, you want to create an inequality from the word problem.  You know that $24.99 is a constant, so we won't put any variables next to it.  You also know that each text message is $0.12, so that would need a variable since it can change each month.  You also know that you can spend $30 maximum each month, so that goes on the other side of the inequality.  Your inequality will look like this:  0.12x+24.99≤30 (x is the number of text messages).

2. Second, you want to solve for x.  To do this, subtract 24.99 from each side.  After this, the equation is 0.12x≤5.01

3. Now, divide each side by 0.12.  Now your inequality is x≤41.75.  This represents how many text messages you can send per month without going over 30.

4. Finally, you have to realize that is impossible to send exactly 41.75 text messages.  So, you have to round down to 41 to get an even number of text messages, and that's your answer!

Hope this helps!  Feel free to ask any questions :)

Answer:

41 text messages

Step-by-step explanation:

Answer:

x is less than or equal to 16

Step-by-step explanation:

- 2 x x + 4 < 20

Isolate the variable

divide 2 from 2 = 0

x + 4 < 20

x is less than or equal to 16

A study that uses both manipulated and measured variables in a factorial design is called a(n)  option b. IV X PV design.

In this design, there are two or more independent variables (IVs) that are manipulated by the researcher.

And one or more measured variables, also known as participant variables (PVs), that are measured but not manipulated.

Factorial designs are used to investigate the effects of multiple independent variables on a dependent variable.

As well as the interactions between the independent variables.

The IV X PV design is a specific type of factorial design.

That includes at least one measured variable in addition to the manipulated independent variables.

Option A is incorrect because mixed repeated measures and independent groups are types of designs .

That describe how participants are assigned to different groups in a study, whereas the IV X PV design describes the types of variables that are used in a study.

Option C describes a specific type of 2x2 factorial design, which includes two independent variables, each with two levels.

Option D describes a design that is used to investigate the relationship between multiple measured variables and a single dependent variable.

Learn more about variables here

brainly.com/question/13930388

#SPJ4

Answer:

3.5 miles; 42 minutes

Step-by-step explanation:

the first thing you do for kelly is determine how many days monday is away from friday

monday is 4 days away from friday

so this means that it is increased by 0.5 four times

this means that it is increased by 2

2 + 1.5 is 3.5 so on friday she ran 3.5 miles

for justice you determine how many minutes she increases per day

that is 6

saturday is 5 days away from tuesday

this means that 6 is increased 5 times

she increased by 30 minutes from tuesday

30 + 12 = 42

she will read 42 minutes on saturday

The proportion of scores below 12.5 in a normally distributed population with a mean of 10 and a standard deviation of 2 can be calculated using the Z-score and the standard normal distribution table. In this case, we need to find the area under the curve to the left of the value 12.5.

The Z-score is calculated as (X - μ) / σ, where X is the value we want to find the proportion for, μ is the mean, and σ is the standard deviation. Substituting the given values, we have (12.5 - 10) / 2 = 1.25.

Using the standard normal distribution table or a statistical calculator, we can find that the area to the left of a Z-score of 1.25 is approximately 0.8944. Therefore, the proportion of scores below 12.5 is approximately 89.44%.

In a normal distribution, the Z-score measures the number of standard deviations a value is from the mean. By calculating the Z-score for the value 12.5, we can use the standard normal distribution table to find the proportion of scores below that value.

The table provides the cumulative probability up to a certain Z-score. In this case, the Z-score of 1.25 corresponds to a cumulative probability of approximately 0.8944.

Since the normal distribution is symmetric, the proportion of scores above 12.5 is equal to the proportion below the mean minus the proportion below 12.5.

Hence, subtracting 0.8944 from 1 (or 100%) gives us approximately 0.1056 or 10.56%. Therefore, the proportion of scores below 12.5 is approximately 89.44%.

for such more questions on  proportion

https://brainly.com/question/1496357

#SPJ8

Answer:

i) Estimate the value of the population proportion = 0.8

ii) 95% confidence interval for the population proportion

(0.7214 , 0.8784)

iii)    Lower bound = 0.7214

     upper bound = 0.8784

Step-by-step explanation:

Step(i):-

Given sample size 'n' = 100

Given data  he surveys 100 customers and finds that 80 paid at the pump

sample proportion

                     \(p = \frac{x}{n} = \frac{80}{100} = 0.8\)

Step(ii):-

95% confidence interval for the population proportion is determined by

\((p^{-} - Z_{\alpha } \sqrt{\frac{p(1-p)}{n} } , p^{-} + Z_{\alpha } \sqrt{\frac{p(1-p)}{n} })\)

Level of significance  

∝ =0.05

Z₀.₀₅ = 1.96

\((0.8 - 1.96 \sqrt{\frac{0.8 X 0.2)}{100} } , 0.8 + 1.96 \sqrt{\frac{0.8 X 0.2}{100} })\)

On calculation , we get

(0.8 - 0.0784 , 0.8 + 0.0784)

(0.7214 , 0.8784)

Conclusion:-

95% confidence interval for the population proportion

(0.7214 , 0.8784)

Answer:

-12a - 48

Step-by-step explanation:

you do -6 times 2a which is -12a then you do -6 times 8 which gives you -48 so you put -12a - 48

since the 48 is a negative we would just put a minus sign instead a plus. If it was a positive 48 we would put a plus sign buts its not so we put a negative.

\(\huge\boxed{\mathcal{HELLO!}}\)

The distributive property states that

a(b+c)=ab+ac (we multiply a by everything inside the parentheses)

-6(2a+8)

-12a-48

\(\huge\boxed{Answer:-12a-48}\)

Hope it helps!

\(\bold{Enjoy~your~day!}\)

Answer:

77

Step-by-step explanation:

Add the numbers together, then divide them to how much numbers are there.

74 + 75 + 80 + 76 + 75 + 81 + 78 = 539

Since there are 7 numbers, you divide 539 by 7.

539/7 = 77

Answer:

77

Step-by-step explanation:

cause you add the numbers up and then you divide how may numers there are

Answer:

one, x = 7

Step-by-step explanation:

7(x - 2) + 5 = 3 (2x - 1) + 1

reduce:

7x - 14 + 5 = 6x - 3 + 1

x = 7

Answer:

d. No, because not enough is information given to prove the triangles congruent by SAS

Step-by-step explanation:

It doesnt give u measures of some important angles. I also got it right

Answer:

D. no, because not enough is information given to prove the triangles congruent by SAS

Step-by-step explanation:

edge2021

To find the volume of the storage chest in cubic feet, we need to use the formula for calculating the volume of a rectangular prism. A rectangular prism is a three-dimensional shape that has six rectangular faces. It is also known as a box.
The formula for finding the volume of a rectangular prism is:
Volume = length x width x height
Let's say that the storage chest has a length of 4 feet, a width of 2 feet, and a height of 3 feet. We can plug these values into the formula and solve for the volume
Volume = 4 feet x 2 feet x 3 feet
Volume = 24 cubic feet
Therefore, the volume of the storage chest in cubic feet is 24. This means that the chest can hold up to 24 cubic feet of pool supplies, such as pool noodles, floaties, and towels.
In conclusion, the volume of Ma Carter's storage chest in cubic feet is 24.
Volume = Length × Width × Height (in cubic feet)

To know more about rectangular prism visit :-

https://brainly.com/question/29107073

#SPJ11

Lol you copied that from the test but dw I wont snitch

Answer:

8=7t

Step-by-step explanation:

The table given shows that both variables are directly proportional to each other. That is, as s variable increases, y variable also increases.

Equation to represent this direct proportion would be:

8=kt,

where, k = constant of proportionality.

Let's find k from the table given.

Let's use any pair values of of s and t given in the table. Say, s = 21, t = 3

8=kt

21=k3

Divide both sides by 3

21/3= k3/3

7=k

k=7

Plug in k = 3 into :

8=7t

Hope this work!

Brainliest plz

Answer:

8=7t

Step-by-step explanation:

The correlation between an asset and itself is equal to +1. Correlation is defined as a statistical measure of the strength of the linear relationship between two variables. When one variable rises, the other rises as well.

A correlation coefficient that is equal to +1 shows a perfect positive correlation between two variables. The following information can be inferred from the correlation coefficient: It is a unitless parameter whose value is always between -1 and +1.If two variables have a correlation coefficient of +1, it means that they have a perfect positive relationship. When one variable rises, the other rises as well.

When one variable falls, the other falls as well. In contrast, a correlation coefficient of -1 implies a perfect negative relationship between the two variables. If one variable increases, the other variable decreases. Similarly, when one variable decreases, the other variable increases.

To know more about Correlation visit:

https://brainly.com/question/30116167

#SPJ11