Put the following activities into order from CERTAIN at the top to IMPOSSIBLE at the bottom

CERTAIN

chose the order in which you placed

Explain how you

the activities.

=

A pig will fly past the window

Which ones are you

confident are in the correct place

=


The sun will set tonight

and why?

Which of the activities was it most difficult to place?

and it will land on tails

= A fair coin is flipped S

=

A fair six sided dice is rolled and lands on a number

less than 6

=

Someone you know will win the National Lottery

Submit

=

Someone in this class has the same birthday as

you

IMPOSSIBLE

Given parameters:

Distance in a year = 18000miles

Car mileage = 24miles/gallon

Average cost per gallon = $2.72 per gallon

Problem;

Find the error in her calculation;

Step 1

18,000 miles/year    

18, 000 miles = 1,500 miles/month     -- Since there are 12months in a year

12 months

Step 2

1500 miles/month

      Car mileage  = 24miles/gallon

Gallons per month; \(\frac{1500}{24}\)   = 62.5gallons/month

125 gallons/month   this is an error and should be 62.5gallons/month

12 miles/gallon  should be 24miles per gallon

Step 3

(125 gallons/month) x ($2.72/gallons) = $340 cost/month

Correct

Step 2 is wrong because it uses wrong values.

Answer:

Option 1

Step-by-step explanation:

Wilma made a mistake is step 2. Instead of dividing by 12, she should have divided by 24. She should budget $170 per month for fuel expenses.

Step-by-step explanation:

9x² + 6 = 12x

3x² + 2 = 4x

3x² − 4x + 2 = 0

Use quadratic formula.

x = [ -b ± √(b² − 4ac) ] / 2a

x = [ -(-4) ± √((-4)² − 4(3)(2)) ] / 2(3)

x = [ 4 ± √(16 − 24) ] / 6

x = [ 4 ± √(-8) ] / 6

x = (4 ± 2i√2) / 6

x = (2 ± i√2) / 3

Step-by-step explanation:

m = y2-y1/x2-x1

m = 16 - 2/ 14 - 11

m = 14/3

m = 14 / 3

Hope it helps.

Answer:

Step-by-step explanation:

when the perimeter of a regular polygon is divided by 5 the lenght of a side is 25 cm what is the perimeter​?

A Regular polygon is a polygon with all sides of equal length

so

25 * 5 = 125 cm

The graph of the equation x^2/49 + (y + 1)^2/4 = 1 is added as an attachment

The expression that represents the function in words is given as

StartFraction x squared Over 49 EndFraction + StartFraction (y + 1) squared Over 4 EndFraction = 1

Express the equation properly

So, we have

x^2/49 + (y + 1)^2/4 = 1

The above equation is an ellipse

Next, we plot the graph on a coordinate plane using a graphing tool

See attachment for the graph of the equation

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Answer:

$10.90

Step-by-step explanation:

2.5 * 4.36

Answer:

0.4 ; 0.8

Step-by-step explanation:

Given that :

y varies jointly as x and z and inversely as the square of w

y ∝ xz ∝ 1/w^2

y = kxz/w^2 - - - - (1)

Given that y =3 when x=3, z=10, w=2

Inputting the values into (1)

3 = (k*3*10) / 2^2

3 = 30 × k / 4

k × 30 = 3 × 4

k × 30 = 12

k = 12/30

k = 0.4

B.) Given that ;

y=4 when x=4 z=20 w=4

Input values into (1)

y = kxz/w^2

4 = ( k * 4 * 20) / 4^2

4 = (k * 80) / 16

k * 80 = 16 * 4

k * 80 = 64

k = 64 / 80

k = 0.8

Answer:

False

Step-by-step explanation:

Took the test and got it wrong

Eliminating design confounds from a study can make it easier to determine if the iv influences the dv

Option (c) is correct answer.

Confounding variables are a type of irrelevant variable that are related to a study’s independent and dependent variables. Thus failing to account for confounding variables can cause wrong estimation of the relationship between independent and dependent variables.

Random assignment of study subjects to exposure of any links between exposure and confounders which reduces potential for confounding by generating groups that are fairly comparable with respect to known and unknown confounding variables.

Eliminating designs confounds from a study facilitates estimating the relationship between independent variables and dependent variables and also randomly assigning subjects helps to eliminate confounding variables.

Hence the correct options is (c).

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Answer:

9 1/2

Step-by-step explanation:

Add 2 1/2 plus 3 1/2 plus 3 1/2 to get 9 1/2.

Answer:

simple. y=x+2

Step-by-step explanation:

:) ======

The presence of dappled brown patches on a patient's cheek may indicate a condition called melasma. Melasma is a common skin condition that typically affects women and is associated with hormonal changes, sun exposure, and genetic factors.

Dappled brown patches on the cheek often suggest a condition called melasma. Melasma is a common skin disorder characterized by the development of dark, irregularly shaped patches on the skin. It typically affects women, especially those with darker skin tones, and is often associated with hormonal changes, such as during pregnancy or with the use of birth control pills. Sun exposure is another contributing factor to the development of melasma. Genetic factors also play a role, as it tends to run in families. Melasma is not a harmful or dangerous condition but can cause cosmetic concerns and affect a person's self-esteem.

To manage melasma, various treatment options are available. These include topical creams containing ingredients such as hydroquinone, tretinoin, or corticosteroids, which can help lighten the patches over time.

Chemical peels that involve the application of a chemical solution to exfoliate the skin and reduce hyperpigmentation may also be used. In some cases, laser therapy can be beneficial to target and break up the excess pigment in the affected areas.

It's important to note that melasma may recur, especially with sun exposure, so it's essential to protect the skin from the sun by wearing sunscreen and using protective clothing. Consulting a dermatologist is recommended to determine the most appropriate treatment approach for an individual case of melasma.

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Answer:

-5x - 8

Step-by-step explanation:

3x + 7 - 8x - 15​

Combine like terms.

3x and -8x are like terms.

7 and -15 are like terms.

3x + 7 - 8x - 15​ =

= -5x - 8

Answer:

It will be over at 5:17 pm

Step-by-step explanation:

2:45 +32 would be 3:17, we add 2 hours it would be 5:17

Answer:

5:17 pm

Step-by-step explanation:

Since Brianna started watching a movie at 2:45 p.m and the movie is 2 hours and 32 minutes long

Thus,

2:45 + 2 and 32 Minutes

2 + 2 = 4

45 + 32 = 77 minutes

1 Hour = 60 Minutes

Thus, 77 - 60 =17

Hence, 4 + 1 = 5

Thus, the movie will be over at 5:17 Pm

~Lenvy~

The formula for the volume of a cone is:

V = (1/3)πr²h

where r is the radius of the base, h is the height of the cone, and π is pi.

In this case, the slant height is given as 17 cm, which we can use with the radius to find the height of the cone using the Pythagorean theorem:

h² = s² - r²

h² = 17² - 8²

h² = 225

h = 15

Now that we have the height, we can plug in the values for r and h into the formula for the volume:

V = (1/3)π(8²)(15)

V = (1/3)π(64)(15)

V = (1/3)(960π)

V = 320π

Therefore, the volume of the cone is 320π cubic cm. Answer: 320π.

There are 3 nonisomorphic rooted trees with three vertices using isomorphism for directed graphs.

To determine the number of nonisomorphic rooted trees with three vertices, we need to consider all possible arrangements of the vertices and their connections.

A rooted tree is a directed graph where one vertex is designated as the root, and all other vertices are connected to it.

Let's denote the vertices as A, B, and C.

We can arrange the three vertices in three different ways: ABC, ACB, and BAC.

For each arrangement, we need to consider the possible connections between the vertices.

In a rooted tree, there are two types of connections: outgoing edges from the root and incoming edges to the root. Since we have three vertices, we can have one outgoing edge and two incoming edges, or two outgoing edges and one incoming edge.

For the arrangement ABC, we can have either A as the root with one outgoing edge and two incoming edges, or B as the root with two outgoing edges and one incoming edge.

This gives us two possible rooted trees.

For the arrangement ACB, we can have either A as the root or C as the root. Both cases will result in the same rooted tree, as the connections between the vertices remain unchanged.

Therefore, we have one more possible rooted tree.

For the arrangement BAC, we can have either B as the root or C as the root. Again, both cases will result in the same rooted tree.

Thus, we have one additional possible rooted tree.

In total, we have 2 + 1 + 1 = 4 possible rooted trees. However, we need to account for isomorphism.

Since we are using isomorphism for directed graphs, we need to consider the direction of the connections.

This means that for each rooted tree, we can have either the outgoing edge from the root pointing to the left or to the right.

Thus, we divide the total number of possibilities by 2, resulting in 4 / 2 = 2 nonisomorphic rooted trees.

Therefore, there are 2 nonisomorphic rooted trees with three vertices using isomorphism for directed graphs.

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A system of inequalities that represents the situation is x + y ≥ 13 and x + 2.50y ≤ 20.

One possible solution is 14 cookies and 2 brownies.

In order to write a system of linear inequalities to describe this situation and graphically and determine one possible solution, we would assign variables to the number of cookies purchased and the number of brownies purchased, and then translate the word problem into an algebraic equation (linear inequalities) as follows:

Since Montraie has only $20 to spend and must buy no less than 13 cookies and brownies altogether, with cookies at $1 each and brownies for $2.50 each, a system of linear inequalities that models the situation and constraints is given by;

x + y ≥ 13

x + 2.50y ≤ 20

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The number of sides of a regular polygon with an interior angle that measures 150° is equal to 12 sides.

In Euclidean geometry, a regular polygon simply refers to a form of polygon which has all of its sides and interior angles being equal.

In Geometry, the sum of the interior angles of both a regular and irregular polygon is given by this formula:

Sum of interior angles = 180 × (n - 2)

Where:

n represents the number of sides of a regular polygon.

Similarly, the number of sides of a regular polygon with a given interior angle can be calculated by using this mathematical expression:

Interior angles = 180 × (n - 2)/n

150° = 180(n - 2)/n

150n = 180n - 360

180n - 150n = 360

30n = 360

n = 360/30

n = 12 sides.

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Answer:

10.8 meters

Step-by-step explanation:

This situation forms a right triangle, where the length of the kite string is the hypotenuse, the distance from where it is held is the long leg, and the height is the short leg.

Use the pythagorean theorem to solve for c, the length of the kite string.

a² + b² = c²

6² + 9² = c²

36 + 81 = c²

117 = c²

10.8 = c

So, the length of the kite string is 10.8 meters

Answer:

P = 24

Step-by-step explanation:

Substitute the variable L with 9 for the length and the variable W with 3 for the width.

You get 2(9) + 2(3)

Multiply and add > 18 + 6 = 24

Answer: Make purchases or get cash now, and pay back the bank in monthly payments

This sounds like it's describing what a credit card would do. A credit card is basically a piece of plastic you use to get microloans that you pay back, and there's a revolving line of credit. You can overdraw your checking account (assuming you have overdraft protection) but it's not the same as a credit card and the product/service you are trying to buy likely won't work.

Answer:

Step-by-step explanation:

it’s D.

Answer:

x = \(\frac{111}{7}\)

Step-by-step explanation:

Given g(x) = 7x - 11 and g(x) = 100 then equate right sides

7x - 11 = 100 ( add 11 to both sides )

7x = 111 ( divide both sides by 7 )

x = \(\frac{111}{7}\)

Answer:

AD=16

AB=20

Step-by-step explanation:

BD=12

9/DB=DB/AD=9/12=12/AD

9AD=144

AD=16

AB^2=25^2-15^2

AB^2=400

AB=20

The width of the rectangle from the length is 90 inches

From the question, we have the following parameters that can be used in our computation:

Length (in inches) 8 12 24 32

Width (in inches) 10 15 30 40

Also, we have

Width = 72

Since the table is a proportional table, we have the following ratio

Ratio = Length : Width

This gives

Length : Width = 8 : 10

So, we have

72 : Width = 8 : 10

Multiply by 9

72 : Width = 72 : 90

By comparison, we have

Width = 90

Hence, the width is 90

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The expected value of the number of games the two equally strong tennis players will play until one wins three games in a row is 14.

Let's consider the possible sequences of games that can occur until one player wins three games in a row. We will denote the winning player as W and the losing player as L. The sequences can be represented as a combination of W's and L's, such as WWL, WLW, LWW, etc.

The key insight is that for each sequence, the last game played must be won by the player who wins three games in a row. This means that the number of games played until the streak ends is fixed at three. However, the preceding games can have various combinations of wins and losses.

To calculate the expected value, we need to consider all possible sequences and their probabilities. Since each player has a 50% chance of winning each game, the probability of any specific sequence occurring is (1/2)^n, where n is the length of the sequence.

We can calculate the expected value by summing the product of the number of games played in each sequence and its corresponding probability.

Considering all possible sequences and their probabilities, the expected value of the number of games played until one player wins three games in a row is found to be 14.

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The prediction equation is  determined as y = -3.9x  + 100.

The prediction equation is calculated as follows;

The formula for the general equation of a linear graph is given as;

y = mx + c

where;

From the line of the best fit drawn in the graph, the slope of the line is calculated as follows;

m = Δy / Δx

let's choose the following points;

(x₁, y₁) = (4, 84)

(x₂, y₂) = (14, 45)

m = (45 - 84) / (14 - 4)

m = -39/10

m = -3.9

From the graph, the y - intercept = 100

The prediction equation is determined as;

y = -3.9x  + 100

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Answer:

1answer hai vro

The bootstrap method of constructing confidence intervals can be used to estimate any parameter of interest, including a population mean, median, or standard deviation.

The basic idea behind the bootstrap method is to repeatedly resample the available data to create a large number of simulated datasets. From these simulated datasets, one can compute the statistic of interest (e.g., mean, median, standard deviation) and construct a confidence interval by determining the range of values that includes a specified percentage of the simulated statistics. This approach is particularly useful when the population distribution is unknown or when the sample size is small, as it allows one to obtain more accurate estimates of population parameters and to assess the variability of these estimates.
Hi! The bootstrap method of constructing confidence intervals can be used to estimate any parameter, including a population mean, a population median, and a population standard deviation. This technique allows for the estimation of various population parameters by resampling and simulating from the original sample data.

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Hello !

\(2n + 8 = 3n +( -30)\\\\2n + 8 - 8 = 3n + (-30) -8\\\\2n = 3n - 38\\\\2n - 3n = 3n-38-3n\\\\-n=-38\\\\\boxed{n =38}\)

Answer:

y = x + 1

Step-by-step explanation:

I HOPE IM NOT TOO LATE BUT basically first u use the points to find the slope:

\(\frac{3+1}{2+2} = \frac{4}{4} = 1\)

so far then, u have y = x + b  (there's an invisible 1 in front of the x)

next, substitute in the values from one set of coordinates to solve for b. I picked the second one bc positive numbers are easier:

y = x + b

3 = 2 + b

3 - 2 = b

1 = b

put this into your equation, and u get y = x + 1

hope this helps!