Please help! Correct answer only!

There are 10 cards in a hat, numbered 1 to 10. The game is to draw one card out of the hat. If the number you draw is even, you win $30. If the number you draw is odd, you win nothing. If you play the game, what is the expected payoff?

$___

Answer:

y=-1x-1

Step-by-step explanation:

it should be this

Answer:

D. y+1=3(x+1)

The number of units produced increases from 2 to 452 as the number of factory workers increases from 0 to 90, which gives;

Part A:

Part B:

Part C:

Part A:

The correlation is the relationship between variables based on statistical data.

From the given table, the difference between consecutive terms of the x and y-values are constant, therefore as the x-values increases, the corresponding y-value increases.

Change in x-values, ∆x = 10 - 0 = 20 - 10 = 30 - 20 = 10

Change in y-values, ∆y = 52 - 2 = 102 - 52 = 152 - 102 = 50

Therefore;

Part B:

Given that the rate of change of the x-values is constant, and the rate of change of the y-values is a constant, the function relating the x and y-values is a linear function, which can be found as follows;

Slope of the equation, m = ∆y/∆x

Which gives;

m = 50/10 = 5

y - 2 = 5•(x - 0)

The function that best fits the data is therefore;

Part C:

The slope of the function is the coefficient of the variable x in the equation, y = m•x + c

The y-intercept of the function is the value of the constant term, c, in the equation, y = m•x + c

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Answer:

60 ships.

Step-by-step explanation:

Let the total number of ships in the naval fleet be represented by x

One-third of the fleet was captured = 1/3x

One-sixth was sunk = 1/6x

Two ships were destroyed by fire = 2

Let surviving ships be represented by y

One-seventh of the surviving ships were lost in a storm after the battle = 1/7y

Finally, the twenty-four remaining ships sailed home

The 24 remaining ships that sailed home =

y - 1/7y = 6/7y of the surviving fleet sailed home.

Hence

24 = 6/7y

24 = 6y/7

24 × 7/ 6

y = 168/6

y = 28

Therefore, total number of ships that survived is 28.

Surviving ships lost in the storm = 1/7y = 1/7 × 28 = 4

Total number of ships in the fleet(x) =

x = 1/3x + 1/6x + 2 + 28

Collect like terms

x - (1/3x + 1/6x) = 30

x - (1/2x) = 30

1/2x = 30

x = 30 ÷ 1/2

x = 30 × 2

x = 60

Therefore, ships that were in the fleet before the engagement were 60 ships.

Answer:

The first and third.

Step-by-step explanation:

For the first one, you just subtract 52.37 and 46.37 and the answer is 6, so that makes the equation 6=y, which is right. The second one equals 6.75, so that's not what we need. For the third one, you divide by 8 on both sides to isolate y, and that results in y=6, which is right. For the fourth one you subtract by 3.2 on both sides to isolate y and that results in 5.8, which isn't what we need. I think for the last one you meant to type y=4+24, in which case that would be y=28, which isn't what we need.

Answer:

240cm³

Step-by-step explanation:

To find our answer we will multiply the volume, width, and height.

4 · 20 · 3 = 240.  Therefore, 240cm³ is our answer.  

Have a good day!

\(\qquad\qquad\huge\underline{{\sf Answer}}\)

Let's calculate its volume ~

Volume of a rectangular prism is :

\(\qquad \sf  \dashrightarrow \:v = l \cdot w\cdot h\)

\(\qquad \sf  \dashrightarrow \:v = 20 \cdot 4\cdot 3\)

\(\qquad \sf  \dashrightarrow \:v = 240 \: \: cm {}^{3} \)

The value of x is 6 using similarity of triangle.

If two triangles have an equal number of corresponding sides and an equal number of corresponding angles, then they are comparable.

Similar figures are described as items with the same shape but varying sizes, such as two or more figures. A hula hoop and the wheel of a bicycle are two examples of things whose forms are similar to one another.

Properties:

side AB is proportional to side XY

side AC is proportional to side XZ

Since we know side AB and side XY are proportional to each other, if we divide side AB by side XY, we can find the size difference...

12 / 4 = 3

The smaller triangle is 3 times smaller than the bigger triangle so we can find side XZ by dividing side AC by 3...

18 / 3 = 6

x = 6.

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Answer:

4！！！！！！！！！！！！！！！！！！！！！！！

0.2564 or 25.64%.

Explanation:

Out of the 117 students, 15 have already completed precalculus and 72 are currently taking it. So, the number of students who have either already completed precalculus or are currently taking it is:

15 + 72 = 87

The number of students who have not already completed precalculus and are not currently taking it is:

117 - 87 = 30

So, the probability that a randomly selected student has not completed precalculus and is not currently taking it is:

30/117 = 0.2564 (rounded to four decimal places)

So, the probability that a randomly selected student has not completed precalculus and is not currently taking it is approximately 0.2564 or 25.64%.

YES, This is an observational study.

The variables in this study are:

Media usage: categorical (explanatory variable)

Tiredness: quantitative (response variable)

This is an observational study. The researchers are observing and measuring the relationship between media usage and tiredness, but they are not manipulating or controlling any variables. They are collecting data by randomly selecting homes to visit and interviewing the adult member of the household whose birthday was nearest.

An observational study draws conclusions from a sample of a population in disciplines like epidemiology, social sciences, psychology, and statistics when the independent variable is not under the researcher's control due to ethical considerations or practical limitations. One typical observational study examines how a therapy may affect its participants, but the researcher has no control over which group the subjects are assigned to—the treated group or the control group. Unlike experiments like randomized controlled trials, when each subject is arbitrarily assigned to either a treated group or a control group, this does not happen. Observational studies naturally create challenges for inferential analysis because they lack an assignment mechanism.

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Answer:

Step-by-step explanation: is (2 b)

Answer:

4  cm

Step-by-step explanation:

The square root of 144 is 12 (12 x 12 = 144) so we know our sides of the square are 12 cm²

12 / 3 = 4

(\(\frac{12}{1} x \frac{1}{3}\))

The sides of the new square are 4 :)

Hope this helps and is correct, have a nice day! :D

Answer:

"If the shape is not a rectangle, then the shape doesn't has four sides."

Step-by-step explanation:

Given conditional statement is,

" Is a shape has four sides, then the shape is a rectangle."

Here we have two statements:

Statement p → A shape has four sides

Statement q → The shape is a rectangle.

Contrapositive of the statement will be:

If \(\sim q\) then \(\sim p\).

Therefore, contrapositive will be,

"If the shape is not a rectangle, then the shape doesn't has four sides."

Answer:

137 i am sorry if incorrect

Step-by-step explanation:

Answer:

6x

Step-by-step explanation:

\(\sqrt{4x^2}\) = \(\sqrt{4}\) × \(\sqrt{x^2}\) = 2 × x = 2x

Then

3\(\sqrt{4x^2}\)

= 3 × 2x

= 6x

No simple graph with six vertices and the above degrees exists.Graph with 6 vertices with degrees 0, 1, 2, 3, 4, 5.For a simple graph, the sum of the degrees of all vertices must be even.The resulting graph is also an Eulerian graph.

a) There exists a simple graph with 6 vertices, whose degrees are 2,2,2,3,4,4.

The given degrees 2, 2, 2, 3, 4, 4 sum up to 17, which is an odd number.

A simple graph with six vertices whose degrees are all even must have a sum of degrees of 6 × 2 = 12, which is even.

Therefore, no simple graph with six vertices and the above degrees exists.

b) There exists a simple graph with 6 vertices whose degrees are 0, 1, 2, 3, 4, 5.

The sum of degrees of vertices in a graph is twice the number of edges, so there are a total of 2 × (0 + 1 + 2 + 3 + 4 + 5) = 30 degrees in this graph.

For the graph to be simple, there can be a maximum of one vertex of degree 5 and one vertex of degree 0.

The graph may be formed by starting with a vertex of degree 5, and joining it to the vertices of degrees 4, 3, 2, 1, and 0 in turn.

The resulting graph is shown in the following figure:Graph with 6 vertices with degrees 0, 1, 2, 3, 4, 5

c) There exists a simple graph with degrees 1, 2, 2, 3.

The degree sequence has an odd sum, so no simple graph can have that degree sequence.

This is because, for a simple graph, the sum of the degrees of all vertices must be even.

d) A graph containing an Eulerian circuit is called an Eulerian graph.

If 61 and 62 Are Eulerian graph, and we add the following edges between them, then the resulting graph is Eulerian:6For 6 to be added as an edge to both 1 and 2, they must have even degree.

Since they were originally Eulerian graphs, each vertex already had even degree.

After 6 is added as an edge to both vertices, it becomes possible to start at one vertex and traverse the graph by using edges that have not been used before and eventually return to the starting vertex.

Hence, the resulting graph is also an Eulerian graph.

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Answer:

12xy+14x

Step-by-step explanation:

12xy+14x

Hope this helps :3

Answer:

12xy + 14x

Step-by-step explanation:

I believer this is correct

96 square ft

Step-by-step explanation:

Answer: The distance is 15 units.

Step-by-step explanation:

Let's define the bottom left corner of the left rectangle as the point (0, 0).

we know that the rectangles are of 10 by 14, then the point O will be exactly on the middle of these two quantities (because the long side is on the horizontal axis, the point O could be written as):

O (7, 5)

Point M is on the top of the rectangle, then we know that the y component will be equal to 14.

And the x component is on the middle of the rectangle (this side is the one that measures 10 units)

the middle is 5.

And we also need to add the 14 units of the other rectangle that is lying down, then the x-component of this rectangle is 14+ 5 = 19

The point M is (19, 14)

We want to find the distance between the points (7, 5) and (19, 14)

We know that the distance between points (a, b) and (c, d) is:

Distance = √( (a - c)^2 + (b - d)^2)

In this case, the distance between points O and M will be:

distance = √( (7 - 19)^2 + (5 - 14)^2) = 15

Distance between points O and M is 15 units.

Answer:

A solution is a the thing you get when you do a math question

Step-by-step explanation:

Answer:

In math, it is the answer to a problem or question

In chemistry, a solution is a homogeneous mixture of two or more substances.

Answer:

It would take \(2.7\) seconds, correct to 1 decimal place/nearest tenth.

Step-by-step explanation:

Step 1: Understanding the formula

The formula is given as \(h=16t^{2}\), where \(h\) represents the height, and \(t\) represents the time.

Step 2: Substituting and solving

The question asks for the time that would take when the height is \(117~\text{feet}\).

So, substitute \(117\) for \(h\) in the formula, since \(h\) denotes the height:

\(h=16t^{2}\\117=16t^{2}\)

Now, let's solve the equation to find the time, \(t\):

\(117=16t^{2}\\\\\text{Divide by 16 on both sides of the equation:}\\\frac{117}{16}=\frac{16t^{2}}{16}\\\\\text{Simplify:}\\7.3125=t^{2}\\\\\text{Square root both sides of the equation:}\\\sqrt{7.3125}=\sqrt{t^{2}}\\\\\text{Calculate:}\\2.7 \approx t\\\\\text{Rearrange the equation:}\\t\approx2.7\)

So, it takes about \(2.7\) seconds to travel \(117\) feet, according to the formula.

The standardized value of X = 16, given that X is a normal random variable with mean = 20 and standard deviation = 2, is -2.

To find the standardized value of X = 16, we need to convert it into a standard normal random variable by using the formula for standardization.

The standardization process involves subtracting the mean of the random variable and dividing by its standard deviation.

Given that X has a mean of 20 and a standard deviation of 2, the formula for standardization is:

Z = (X - μ) / σ

Where Z represents the standardized value, X is the original random variable, μ is the mean, and σ is the standard deviation.

Plugging in the values, we have:

Z = (16 - 20) / 2

Z = -4 / 2

Z = -2

Therefore, the standardized value of X = 16 is -2.

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Answer:

168 feet

Step-by-step explanation:

area of trapezoid = length (a)+ breadth(b) / 2 height

Answer:

1

Step-by-step explanation:

The leading coeffecient is the number behind the x^2 value. There is an imaginary one there.

Answer:

B

Step-by-step explanation:

Step-by-step explanation:

Let's use "x" to represent the number of chocolate cakes sold and "y" to represent the number of vanilla cakes sold.

From the problem statement, we know that the bakery sold a total of 50 cakes, so we can set up an equation:

x + y = 50

We also know that the total sales were $200. If the chocolate cakes sold for $5 each and the vanilla cakes sold for $3 each, we can set up another equation for the total sales:

5x + 3y = 200

We can use the first equation to solve for one of the variables in terms of the other. For example, we can solve for y in terms of x:

y = 50 - x

Substituting this expression for y into the second equation, we get:

5x + 3(50 - x) = 200

Simplifying this equation, we get:

2x + 150 = 200

2x = 50

x = 25

So the bakery sold 25 chocolate cakes. To find the number of vanilla cakes sold, we can substitute x = 25 into the equation y = 50 - x:

y = 50 - 25

y = 25

So the bakery also sold 25 vanilla cakes.

Therefore, the bakery sold 25 chocolate cakes and 25 vanilla cakes.

The distance in meters that was traveled is given as 300 meters

Acceleration = 60 / 40

= 3 / 2

When the velocity that we have in the graph is 30 m/s the time in seconds is twenty seconds

We have to use the formula s = 1 / 2 a t ^2

= 1 / 2 x 3 / 2 x 20^2

= 1200 / 4

= 300 meters

Hence the train traveled for a distance of 300 meters

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Answer:

Step-by-step explanation:

y=8.25x+10

20 hours

8.25*20 is 165

165+10 is 175

x = 1 + 6y

x = 9 - 2y

1 + 6y = 9 - 2y

8y = 8

y = 1

x = 8