What is the output of the function when the input is −3?

Joint Distribution of x and y is 25.

Joint Distribution is based on joint probability, which can be simply defined as the probability of two events happening together.

We know the formula for joint distribution

F(x,y) = P(X ≤ x and Y ≤ y) = ∑∑p(xi,yi)

Here x is the number of aces and y is the number of kings in a poker hand.

That means x can take values from 0 to 4 and y can take values from 0 to 4.

∴ F(x,y) = P(X ≤ 4 and Y ≤ 4)

⇒ F(x,y) = p(0,0) + p(0,1) + p(0,2) + p(0,3) + p(0,4) + p(1,0) + p(1,1) + p(1,2) + p(1,3) + p(1,4) + p(2,0) + p(2,1) + p(2,2) + p(2,3) + p(2,4) + p(3,0) + p(3,1) + p(3,2) + p(3,3) + p(3,4) + p(4,0) + p(4,1) + p(4,2) + p(4,3) + p(4,4).

To find all these values we will construct a table as follows;

P(x,y)           Y=0      Y=1         Y=2      Y=3    Y=4

X=0              0          1/4          1/2        3/4       1      

X=1               1/4        1/2        3/4         1        5/4

X=2             1/2         3/4         1            5/4     3/2

X=3             3/4          1          5/4         3/2      7/4      

X=4               1          5/4         3/2       7/4       2

Now the joint distribution will become,

F(x,y) = 0 + 1/4 + 1/2 + 3/4 + 1 + 1/4 + 1/2 + 3/4 +1  + 5/4 + 1/2 + 3/4 + 1 + 5/4 + 3/2 + 3/4 + 1 + 5/4 + 3/2 + 7/4 + 1 + 5/4 + 3/2 + 7/4 + 2

F(x,y) = 25

Therefore the joint distribution of x and y is 25.

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We know that the graph of a polynomial function will intersect the x-axis at its root values, and we know that if the multiplicity of that root is even, the graph will "bounce off"

If the graph crosses the x-axis and appears almost linear at the intercept, it is a single zero.

If the graph touches the x-axis and bounces off of the axis, it is a zero with even multiplicity.

If the graph crosses the x-axis at a zero, it is a zero with odd multiplicity.

The sum of the multiplicities is n.

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The ordered pairs (-2,3) and (5,1) make the inequality true.

What is inequality?

An inequality in mathematics depicts the connection between two values in an algebraic statement that are not equal. One of the two variables on the two sides of the inequality may be greater than, greater than or equal to, less than, or less than or equal to another value, according to inequality signals.

(-2,3)

x= -2 , y= 3

-2+3(3) < 9

7< 9

true

(5,1)

x= 5 , y= 1

5+3(1) < 9

8< 9

true

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Question:

Which ordered pairs make the inequality true?

x + 3y < 9

Choose all answers that are correct.

(Points : 1)

(–2, 3)

(–1, 4)

(1, 3)

(5, 1)

There are 256 ways in total and 56 possible outcomes contain exactly three heads. The possible outcomes contain at least three heads is 219.

Consider the provided information.

A coin is flipped eight times where each flip comes up either heads or tails.

Part (a) How many possible outcomes are there in total?

Each time we flip a coin it comes up either heads or tail.

Therefore the total number of ways are: 2⁸ = 256

Hence, there are 256 ways in total.

Part (b) contain exactly three heads?

We want exactly 3 heads, therefore,

n=8 and r=3

According to the definition of combination:

To get exactly 3 heads,

n=8 and r=3

(⁸C₃ ) = 8! / 3!(5!) = 56.

Therefore, there are 256 ways in total and 56 possible outcomes contain exactly three heads. The possible outcomes contain at least three heads is 219.

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Modulus function has no solution.

What is a function?

A unique kind of relation called a function is one in which each input has precisely one output. In other words, the function produces exactly one value for each input value. The graphic above shows a relation rather than a function because one is mapped to two different values. The relation above would turn into a function, though, if one were instead mapped to a single value. Additionally, output values can be equal to input values.

The x-values are input into the function machine. The function machine then performs its operations and outputs the y-values. The function within can be any function.

Nothing can ever be 0 in an expression of an absolute value. That is a phrase for an absolute value that has been entirely lowered and must be larger than or equal to zero.

There are no solutions to an absolute value expression if, after simplifying it, the value on the opposite side is a negative number or has a negative sign.

Hence, the Modulus function has no solution.

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How to answer: You divide the first number by the second number

a) 85.50/7=12.21

b) 76.00/6=12.67 or 12.6  repeating

c) 120/10= 12

d) 30/0.5= 60

e) 6/2.40= 2.5

f) 399/3= 133

g) 3/2.25= 1.33 or 1.3 repeating

h) 400/5=  80

i) 43.80/5.5=7.7182 or 7.718 (the 18 repeating)

I hope this helped

The number of  subscribers they must  sample to obtain this interval is: b) 385.

How to find the sample?

95% confidence interval for z-score is  1.96

Using this formula to find the number of  subscribers  they must sample to obtain this interval

n≥ (zσ/2 ÷ 2ME)²

Where:

n= Sample

zσ = Z-score

ME = margin of error

Let plug in the formula

n≥ [1.96 / 2(0.05)]²

n≥ [1.96 / 0.1]²

= (19.6)²

= 384.16

=385 (Rounded)

Therefore the correct option is B.

The complete question is:

Netflix would like to estimate the proportion of their current subscribers who would pay extra for a premium membership including access to more movies and TV shows. To do this, they plan to calculate a 95% confidence interval to estimate the proportion. They would like a margin of error of .05. How many subscribers must they sample to obtain this interval?

a) 1537

b) 385

c) 192

d) 10

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The total probability rule is used when an an analyst is interested in a)all potential outcomes. So, correct option is a.

Probability is the branch of the mathematics concerning numerical descriptions of how likely an event is going to occur, or how likely it is that a proposition is true. The probability of an event is the number between 0 and 1, where, roughly speaking, 0 indicates that impossibility of the event and 1 indicates certainty. If  probability of an event is higher then, the more likely it is that the event will occur.

Probability can be defined as the proportion  of the number of favorable outcomes to the total number of outcomes of an event..

Hence, option a is correct.

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The algebraic approach to solving simultaneous linear equations is known as substitution method.

The value of one variable from one equation is substituted in the second equation in this procedure, as the name implies. By doing this, a pair of linear equations are combined into a single equation with a single variable, making it simpler to solve. The steps shown below can be used to find the solution to the system of two equations with two unknown values. Here, the procedure for resolving the linear equation is listed. Those are Expand the parenthesis to simplify the given equation. Either x or y must be solved for in one of the equations. Replace the step 2 solution with the other equation, then use basic arithmetic operations to solve the newly obtained problem. Finally, obtain the second value by solving the equation.

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The given expression can be expressed in the form of factored form as (12x - 20)(12x - 6).

What is a quadratic equation?

A quadratic equation is any equation in algebra that can be rearranged in standard form as ax²+bx+c=0, where x is an unknown value and a, b, and c are known numbers.

It has two solutions.

The given equation is 6(3x−5)5(2x−1).

Then it can be expressed as

      = 6(3x − 5)(10x − 5)

      = (18x − 30)(10x − 5)

      = (180x² − 90x - 300x + 150)

      = 180x² − 390x + 150

  Simplifying we get

      = 60x² - 130x + 50

      = (12x - 20)(12x - 6)

Hence, the given expression can be expressed in the form of factored form as (12x - 20)(12x - 6).

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Jessica does not notice when her father leaves the day care center and ignores him when he returns. jessica's behavior is characteristic of Insecure-avoidant attachment.

Avoidant attachment:

Parents of children with avoidant attachments most often tend to be emotionally unavailable or unresponsive. These parents also discourage crying and encourage premature independence in their children, or learns early in life to suppress the natural urge to seek comfort from a parent when distressed.

Many people who avoid children have already become independent, precocious "little adults" as young children. As mentioned above, the primary defensive attachment strategy of children with avoidant attachment is to never outwardly demonstrate a desire for intimacy, warmth, affection, or love.

Insecure-Avoidant (aka Type A) is an attachment pattern identified by Ainsworth from an odd situation. This attachment type is ready for research but does not seek intimacy with their caregiver. They have low levels of fear of separation and fear of strangers and do not contact their mothers when reunited. Her 21% of children show this attachment pattern.

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The Standard Error of mean is 217.71 .

The critical value , Z꜀= 1.96 < Z , it is then concluded that the null hypothesis is rejected.

Hence, we can say that the the mean earnings of men in the General Social Survey is not representative of the earnings of the entire U.S. male population.

We have given that

A researcher working with the General Social Survey (GSS) on a project focusing on income and health.

Sample size, N = 1500

Sample mean , X-bar =$31,607

male population mean , μ = $33,405

Standard deviations, σ = $8,432

Std. error of mean , S.E = σ /√N

= 8432/√1500

= 217.71

Consider null and alternative hypothesis as

H₀ : μ = 33405

Hₐ : μ not equal to 33,405

Rejection region: Based on information provided the significance level,alpha = 0.05 and the critical value for two tailed test , Z꜀ = 1.96.

The rejection region for two tailed test R is

{ z : |z|> 1.96}.

Test Statistic:

Z- statistic test formula,

Z = (X-bar - u)/std. error

=> Z = ( 31,607 - 33,405)/217.71

=> Z = - 8.259

Decision: Since, it is observed that |z| = 8.259 > Z꜀ = 1.96 , it is concluded that Null hypothesis is rejected .

Conclusion: It is concluded that Null hypothesis H₀ is rejected. So there is sufficient evidence to support the claim that the population mean ,u is different from 33,405 at α = 0.05 significance level.

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.

The alleles, or genes for a trait, are known as the genotype. A phenotypic ratio represents a relationship between the different physical characteristics and how often they occur. Ratios are typically done in relationship to a single trait among the individuals.

Phenotypic ratio pertains to the relative number of offspring manifesting a particular trait or combination of traits. It can be determined by doing a test cross and identifying the frequency of a trait or trait combinations that will be expressed based on the genotypes of the offspring.

For example: when a tall plant is crossed to a short plant, some of their offspring will be tall while others will be short. To determine the phenotypic ratio, the number of times the phenotypes (either tall or short) are expressed is counted. In this case, the phenotypic ratio shall indicate how many of the offspring will be tall and how many will be short based on the genotype.

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The correct matching of a, b, and c with -6.283, -5.667, and -4.243, respectively.

A number line refers to a straight line in mathematics that has numbers arranged at regular intervals or portions along its width. A number line is often shown horizontally and can be postponed in any direction.

The decimal number is the sum of a whole number and part of a fraction number. The fraction number is greater than zero but less than one.

The numbers are given below.

-17/3, -2π, and -√18

Convert each number into a decimal number. Then we have

-17/3, -2π, and -√18

-5.667, -6.283, and -4.243

Then the correct matching of a, b, and c with -6.283, -5.667, and -4.243, respectively.

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The property that justifies the work between step 3 and step 4 is division of property of inequality (option A)

The division property of inequality states that if you divide one side of an inequality by a number, you can divide the other side of the inequality by the same number.

It can also be stated as if we divide both sides of an inequality by the same number, the inequality remains the same.

At step 3: 2x>10

2 is used to divide both sides

2x/2>10/2

x>5(step 4)

Therefore the property between step 3 and step 4 is division property of inequality.

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Answer:

d. 0.875

Step-by-step explanation:

Having at least 1 girl out of 3 children means that there can be 1, 2 or 3 girls out of the 3 children.

So having at lest 1 girl out of 3 children is the same as saying that all 3 children are not boys.

The probability that all 3 children are boys would be

chance that child 1 is a boy * chance that child 2 is a boy * chance that child 3 is a boy = 0.5 * 0.5 * 0.5 = 0.125

And the probability that NOT all 3 children are boys would be

100% - probability that all 3 children are boys = 1 - 0.125 = 0.875

Answer:Step 1: Summarise the main idea of each poem in 1-2 sentences. ...

Step 2: Find similarities – thematic, stylistic, structural and formal. ...

Step 3: Find differences from similarities. ...

Step 4: Identify 3 key ideas for comparison.

Step-by-step explanation:

How do you compare two poem structures?

These are some points to think about:

use the introduction to explain which poems you are writing about.

try to balance out the detail you include for each poem.

compare the poems throughout the essay.

comment on content, themes, ideas and attitudes as well as form, structure and language.

How do you compare poems in a level essay?

try to balance out the detail you include for each poem. compare the poems throughout the essay. comment on content, themes, ideas and attitudes as well as form, structure and language. sum up your thoughts on ways in which the poems are similar and different in your conclusion.

The cost of one hot dog would be $4 and the cost of one water bottle would be $1.

What are the linear equations in two variables?

A linear equation in two variables is one that is written in the form ax + by + c=0, where a, b, and c are real numbers and the coefficients of x and y, i.e. a and b, are not equal to zero. For example, 10x+4y = 3 and -x+5y = 2 are two-variable linear equations.

Let the cost of one hot dog be 'x' dollars and the cost of one water bottle be 'y' dollars.

By using the given data, we can prepare the equations

             4x + 6y = 22 ------(I)

             8x + 3y = 35------(II)

Multiplying equation(I) and taking subtraction, we get

               9y =  9

                 y = 9/9

                 y = 1

Put y = 1 in equation (I), and we get

          4x + 6 = 22

          4x = 22 - 6

          4x = 16

            x = 4

Hence, the cost of one hot dog would be $4 and the cost of one water bottle would be $1.

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An increase in an asset's expected return relative to that of an alternative asset, holding everything else constant, (option a) increases the quantity demanded of the asset.

Given,

Asset's expected return;-

The weight of each asset is multiplied by its projected return to determine the expected return. The total predicted return for your portfolio may then be calculated by adding the figures for each investment. Hence, the equation Asset 1 Weight x Expected Return = Expected Portfolio Return Plus (Asset 2 Weight x Expected Return)

Hence,

An increase in an asset's expected return relative to that of an alternative asset, holding everything else constant, (option a) increases the quantity demanded of the asset.

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The correct statements are A, B and E

SOLUTION:

Given, number is

We have to choose the statements that correctly describes the above number.

Now, we know that, a bar on a number represents it is repeating decimal. So let us check options now.

A. It is a repeating decimal.

As the number has it is repeating decimal. So this option is correct.

B. It is a non-terminating decimal.

As the number is repeating, it will not terminate, so this option is correct.

C. It is a non-repeating decimal.

No, it is repeating. So this is wrong statement.

D. It is a terminating decimal.

It is non – terminating, so this is wrong.

E. It is a rational number.

As it is repeating, we can represent it in fraction, so this is correct.

F. It is not a rational number.

It is rational number so, this is wrong option.

Answer:

The answers are

A.

B.

E.

For the measures of the sides of the original square, we can conclude that each side of the original square is one-fourth the length of each side of the scale model. Therefore, 1st option is correct.

It is known to us that -

The value of the scale factor = 4

We also know that -

Each side of the scale model = Scale factor * Side of the original square

=> Each side of the scale model = 4 * Side of the original square

=> Side of the original square = (1/4) * Each side of the scale model

Thus, for the measures of the sides of the original square, we can conclude that each side of the original square is one-fourth the length of each side of the scale model. Therefore, 1st option is correct.

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The arc length of the partial circle is 12,56 units.

The arc of a circle is defined as the part or segment of the circumference of a circle.

Therefore,

length of an arc = ∅ / 360 × 2πr

where

Hence,

∅ = 90 degrees

r = 8 units

length of an arc = 90 / 360 × 2 × 3.14 × 8

length of an arc = 4521.6 / 360

length of an arc = 12.56 units.

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The constant variation of Y 8 when X 16 is 2.

What is Direct Proportion?

"When the relationship between two quantities is such that if we increase one, the other will also rise, and if we decrease one, the other quantity will also drop, then the two quantities are in a direct proportion," according to the definition of direct proportion. For instance, suppose there are two numbers, x and y, where x is the number of candies and y is the total amount of money spent. If we purchase more candy, we will be required to pay more, and if we purchase fewer candies, we will be required to pay less. This means that x and y are directly proportional to one another in this situation. The symbol for it is x y. Direct variation is another name for direct proportion.

So,

In the given question, we have:

y as 8 and x as 16;

So,

In order to find the proportional value, we have to divide the x quantity by the y quantity.

So, after dividing we get:

[tex]\frac{X}{Y} = \frac{16}{8}[/tex]

[tex]\frac{X}{Y} = 2[/tex]

So,

The constant proportion will be 2.

Hence,

The constant proportion will be 2.

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The two numbers required to solve the following problem are, 13.3 and 6.7

What is Derivative?

The derivative of a function of a real variable in mathematics describes the sensitivity of the function value to a change in its argument. Calculus relies heavily on derivatives.

Solution:

Let the ture positive numbers be x,(x,y>0)

x + y = 20 -------- Given

We need to maximise [tex]xy^{2}[/tex]

x = 20 - y

f(y) = (20 - y)*[tex]y^{2}[/tex]

f(y) = 20[tex]y^{2}[/tex] - [tex]y^{3}[/tex]

f'(y) = 0

On differentiating:

f'(y) = 40y - 3[tex]y^{2}[/tex]

0 = 40 - 3y

y = 13.3

x = 6.7

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The value b is 8 if m=1 and the line is passing through the point P(-4,4).

The line's equation is expressed in slope-intercept form: y = mx + b, where m represents the slope and b represents the y-intercept. The slope of the line is 3 in our equation, y = 3 x + 5.

Consider the slope-intercept form equation y = 6 x + 9 y=6x+9 y=6x+9. We can find the x and y intercepts. The x-intercept occurs when y = 0, whereas the y-intercept happens when x equals 0. By setting the value of y to zero, we may find the x-intercept.

When an equation is not in the y = mx + b form, we can solve for the intercepts by substituting 0 and solving for the remaining variable.

Let, the slope-intercept form is,

y= mx +b

Given, m=1

And the line passes through the point P(-4,4)

Then,

4=1(-4)+b

b=4+4=8

b=8

Therefore, the value of b is 8

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4.727273

Step-by-step explanation:

-0.477  is the value of log 1 by 3 .

A logarithm is defined simply?

The logarithm represents the power to which a number must be raised to obtain another number (see Section 3 of this Math Review for more about exponents).

For instance, since ten raised to the power of two equals 100, the base ten logarithm of 100 is 2: log 100 = 2.

log (1/3)

= log1 - log3

= 0 - 0.477

 = -0.477

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Answer:

B)  It is similar to triangle ABC and has coordinates A′(8, −12), B′(4, −16), and C′(−20, 8).

Step-by-step explanation:

If the vertices of a triangle ABC are dilated by a scale factor of 2, the coordinates of the vertices of triangle A'B'C' can be found by multiplying each coordinate of ABC by the scale factor.

Therefore, the coordinates of the vertices of triangle A'B'C' are:

As the triangle has been dilated, its size has changed but its shape has not.  Therefore, the triangles are similar.

The Range of the function f(x) = x² is [0,∞)  .

Range of the function f(x) is defined as the set of all output values of the function.

In the question,

the function is given as f(x) = x² ,

we have to find the Range of it .

So , f(x) = x² ,

on substituting the x [tex]=[/tex] -1 , we get the value of  f(-1) is = 1 ,

on substituting x = 0 , we get f(0) = 0 ,

on substituting x = 1 , we get f(1) = 1.

we see that Substituting positive values as well as negative values , the result is positive .

So , the Range of the function f(x) is   [0,∞) .

Therefore , the Range of x² is [0,∞) .

The given question is incomplete , the complete question is

What is the range of the function f(x) = x² ?

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The value of variable x in the equation is as follows;

x = - 19 / 100

An equation is a mathematical statement that shows that two mathematical expressions are equal.

In other words, equations are mathematical statements containing two algebraic expressions on both sides of an 'equal to (=)' sign.

Let's solve the equation for variable x.

Variables are numbers represented with letters in an equation.

Therefore,

[tex]2x+3x = -\frac{3}{4}-\frac{1}{5}[/tex]

[tex]5x = \frac{-15-4}{20}[/tex]

cross multiply

20(5x) = - 19

100x  = -19

divide both sides by 100

Hence,

x = - 19 / 100

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