Prove that ST^2=TU*TV

The sample points of events A, B, A ∩ B, A ∪ B and A' (complement of A) are given. The probability of event are 1/18, 11/36, 1/18, 7/18 and 17/18 respectively. The probability using additive rule of p(A ∩ B) is 1/36.  Events A and B are not mutually exclusive as they have a non-empty intersection.

Sample points in the events

A: {(1, 6), (2, 5), (3, 4), (4, 3), (5, 2), (6, 1)}

B: {(4, 1), (4, 2), (4, 3), (4, 4), (4, 5), (4, 6), (1, 4), (2, 4), (3, 4), (5, 4), (6, 4)}

A ∩ B: {(4, 3), (3, 4)}

A ∪ B: {(1, 4), (1, 6), (2, 4), (2, 5), (3, 4), (4, 1), (4, 2), (4, 3), (4, 4), (4, 5), (4, 6), (5, 2), (5, 4), (6, 1), (6, 4)}

A' (complement of A): {(1, 1), (1, 2), (1, 3), (2, 1), (2, 2), (2, 3), (3, 1), (3, 2), (3, 3), (5, 1), (5, 3), (5, 5), (6, 2), (6, 3), (6, 5), (1, 5), (1, 6), (2, 6), (3, 5), (3, 6), (5, 6), (6, 6)}

The probability of event A is

p(A) = 2/36 = 1/18.

The probability of event B is

p(B) = 11/36.

The probability of event

A ∩ B (i.e., A and B) is p(A ∩ B) = 2/36 = 1/18.

The probability of event

A ∪ B (i.e., A or B) is p(A ∪ B) = 14/36 = 7/18.

The probability of event A' (i.e., not A) is p(A') = 17/18.

By the additive rule, we have p(A ∪ B) = p(A) + p(B) - p(A ∩ B). Therefore, p(A ∩ B) = p(A) + p(B) - p(A ∪ B) = (1/18) + (11/36) - (7/18) = 1/36. This inconsistent with the answer we obtained in above part.

The events A and B are not mutually exclusive because it is possible to roll a 4 and a 3 at the same time, which satisfies both events.

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Answer:g maybe

Step-by-step explanation:

The compound inequality that has no solution is d) m + 9 < 8 and -2m ≥ 10.

A compound inequality combines two or more inequalities using the logical connectives "and" or "or".

Compound inequalities are used to describe a range of values that satisfy multiple conditions simultaneously.

In the given compound inequality, the first inequality states that m + 9 is less than 8, which can be rewritten as m < -1.

The second inequality states that -2m is greater than or equal to 10, which can be rewritten as -2m ≥ 10.

However, the two inequalities cannot be true at the same time because if m is less than -1, then -2m would be greater than 2, and therefore cannot be greater than or equal to 10.

So there is no value of m that satisfies both inequalities simultaneously, resulting in no solution.

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The number of tellers that should be used if the aim is to keep the mean queuing time to less than 5 minutes is 3.

To determine the number of tellers follow these steps:

1. Arrival rate (λ) = 18 customers per hour
2. Mean service time (μ) = 10 minutes per customer = 1/6 customer per minute
3. Lobby capacity = 15 customers
4. Target mean queuing time = 5 minutes

Now, calculate the service rate and find the number of tellers needed to achieve the target mean queueing time.

Step 1: Convert arrival rate to customers per minute: λ = 18/60 = 0.3 customers per minute
Step 2: Calculate the service rate per teller: 1/μ = 1/(1/6) = 6 customers per hour = 0.1 customers per minute
Step 3: Determine the number of tellers (n) needed to achieve the target queuing time:

Using the formula:
n > λ / (μ * (Wq_target + 1/μ))

Here, Wq_target is the target mean queuing time in minutes.
n > 0.3 / (0.1 * (5/60 + 1/(6/60)))

After solving the inequality, we get:
n > 2.4

Since the number of tellers must be a whole number, therefore, at least 3 tellers should be used in the queueing model of the bank to keep the mean queueing time to less than 5 minutes.

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In computer programming, variables are used to store and manipulate data. In this case, an int variable named strawsoncamel has been declared and assigned a value.

To increase the value of strawsoncamel by 1, you can use the increment operator (++). This operator adds 1 to the current value of the variable and assigns the result back to the variable.

For example, if strawsoncamel has a value of 5, the statement strawsoncamel++; would increase its value to 6. This can be useful in many scenarios, such as counting or iterating through a loop. It's important to note that the increment operator can also be used in other ways, such as ++strawsoncamel, which increments the value of the variable before it is used in an expression.

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To increase the value of the variable strawsoncamel by 1, you can use the increment operator "++". So the statement would be:
strawsoncamel++;

This will increment the value of strawsoncamel by 1. The increment operator is an example of an operator in programming, which performs a specific operation on a variable. In this case, it increases the value of the variable by 1, which is also known as an increment.
To increase the value of the integer variable `strawsoncamel` by 1 using the increment operator, follow this step:
Write the statement: `strawsoncamel++;`
This line of code will use the increment operator (`++`) to increase the value of the variable `strawsoncamel` by 1.

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The required value of probability P(B|A) is approximately 0.837.

As mentioned in the question,
P(A)=0.3, P(B)=0.57 and P(A and B)=0.251,

We can use the formula for conditional probability to find P(B|A):

P(B|A) = P(A and B) / P(A)

Substituting the given values, we get:

P(B|A) = 0.251 / 0.3 = 0.83667

Rounding to the nearest thousandth, we get:

P(B|A) ≈ 0.837

Therefore, the value of P(B|A) is approximately 0.837.

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The statement " Each neighborhood in DMR encompasses just the vertices and edges of a bad triangle" is false because a neighborhood in a Delaunay triangulation typically encompasses more than just the vertices and edges of a single bad triangle.

The statement is incorrect. A "bad triangle" refers to a specific type of triangle that can occur in a Delaunay triangulation, which is a type of triangulation used in computational geometry. A bad triangle is a triangle that violates the Delaunay condition, which requires that the circumcircle of the triangle contains no other vertices of the triangulation.

While a Delaunay triangulation can be used to partition a set of points into a set of triangles, each neighborhood in the triangulation typically encompasses more than just the vertices and edges of a single bad triangle. Instead, a neighborhood typically encompasses all of the triangles in the triangulation that share a common vertex or edge with a given triangle.

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False. Each neighborhood in DMR encompasses the vertices and edges of a Delaunay triangle, which is a good triangle.

, each neighborhood in DMR (Delaunay Mesh Refinement) does not necessarily encompass just the vertices and edges of a bad triangle. DMR is an algorithm used to refine meshes, and it can involve both bad and good triangles to ensure a high-quality mesh output. The neighborhoods can contain multiple triangles and their respective vertices and edges, depending on the refinement criteria.

False. Each neighborhood in DMR encompasses the vertices and edges of a Delaunay triangle, which is a good triangle.

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The requried length of measure of GH and CH in triangle GCH is 16 and 12 respectively.

Here,
AC is the perpendicular bisector of side GH, But this bisector also bisects the triangle in two equal halves.
So,
GH =2GB
FH = 2 * 8 = 16

CH = CG
CH = 12

Thus, the requried length of measure of GH and CH in triangle GCH is 16 and 12 respectively.

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Based on the spread of the dots in the dot-plot, the standard deviation of the data is most likely to be (c) 11.

The dot-plot displays a unimodal distribution with a moderate to large spread of the data.

The spread of the data is roughly from 0 to 40, with most of the dots being between 10 to 30.

The spread of the dots, it is unlikely that the standard deviation of the data is as small as 5 or 8.

Similarly.

It is unlikely that the standard deviation is as large as 20 or 15 as there are a significant number of data points that lie within the 20-30 range.

Based on the spread of the dots in the dot-plot, the standard deviation of the data is most likely to be around 11.

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Answer:

highest: $1,438

lowest: $1,062

Step-by-step explanation:

The highest and lowest points are adding $188 and subtracting $188 from her brother's amount.

So, to find the highest point, add $188 to $1,250, which is $1,438.

To find the lowest point, subtract $188 from $1,250, which is $1,062.

Hope this helps ;)

Answer:

We can use the following formula for the cosine of the sum of two angles:

cos(α + β) = cos(α)cos(β) - sin(α)sin(β)

To use this formula, we need to find the values of cos(α), sin(α), cos(β), and sin(β).

Since tan(α) = 4/3 and α is in the first quadrant, we can use the Pythagorean identity to find sin(α) and cos(α):

tan^2(α) + 1 = sec^2(α)

(4/3)^2 + 1 = sec^2(α)

16/9 + 1 = sec^2(α)

25/9 = sec^2(α)

sec(α) = 3/5

cos(α) = 1/sec(α) = 5/3

sin(α) = tan(α) * cos(α) = (4/3) * (5/3) = 20/9

Since cos(β) = -4/5 and β is in the third quadrant, we can use the Pythagorean identity again to find sin(β):

sin^2(β) + cos^2(β) = 1

sin^2(β) = 1 - cos^2(β)

sin(β) = -√(1 - cos^2(β)) (since sin(β) is negative in Q3)

sin(β) = -√(1 - (-4/5)^2) = -√(1 - 16/25) = -√(9/25) = -3/5

Now we can substitute these values into the formula for cos(α+β):

cos(α + β) = cos(α)cos(β) - sin(α)sin(β)

cos(α + β) = (5/3) * (-4/5) - (20/9) * (-3/5)

cos(α + β) = -4/3 + 4/3

cos(α + β) = 0

Therefore, cos(α+β) = 0.

Without knowing the specific transformation that maps J, K, I, and M to J', K', I', and M't is not possible to find the exact algebraic rule for the coordinates

Given that

J' (-2,1), K' (1,2), I' (2,-1), M' (1,-3)

Let's say we have a transformation that maps points J, K, I, and M to J', K', I', and M', respectively. Then, the algebraic rule for the coordinates of the transformed points can be found as follows:

Let T represent the transformation that maps points J, K, I, and M to J', K', I', and M', respectively.

Let (x, y) be the coordinates of a point P.

To find the coordinates of T(P), we can apply the same transformation to the coordinates of  P.

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The Euler's formula solved for the variable V gives . V = 2 + E − F. Option 2

The subject of a formula is the variable or variables that represent the quantity being calculated or solved for.

In mathematical formulas, the subject is typically denoted by a letter or symbol, and the formula shows the relationship between the subject and other variables or constants in the equation.

From the information given, we have that;

V − E + F = 2

To make the variable, V, the subject, take the steps

collect the variable E

V + F = 2 + E

Now, collect the F variable

V = 2 + E - F

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The cost to paint the room with two coats of paint is $48, using paint that costs $8 per gallon and covers 300 square feet per gallon.

To determine how much it costs to paint the room if the paint costs $8 a gallon and each gallon covers 300 square feet of wall, we first need to determine how many gallons of paint we need. From problem #18, we know that the room has a total wall area of 800 square feet, and we need to apply two coats of paint.

The total wall area that needs to be covered by paint is:

800 square feet x 2 coats = 1600 square feet

To determine how many gallons of paint we need, we divide the total square footage by the coverage of one gallon of paint:

1600 square feet ÷ 300 square feet/gallon = 5.33 gallons (rounded up to the nearest gallon)

Therefore, we need 6 gallons of paint to complete the job (since we can't purchase a fractional amount of a gallon).

The cost of the paint can now be calculated by multiplying the number of gallons of paint by the cost per gallon

6 gallons x $8/gallon = $48

So it would cost $48 to paint the room.

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Therefore, the temperature at the summit of the 3,000-foot mountain on a sunny day is estimated to be 10.8 F°.

In mathematics, an equation is a statement that indicates the equality of two expressions. An equation typically contains one or more variables, which are placeholders for unknown values or quantities. The variables can take on different values, and the goal is often to find the values that satisfy the equation.

Here,

Let's start by calculating the rate of change of temperature with respect to elevation:

=-5.4 F° / 1,000 ft

This means that for every 1,000-foot increase in elevation, the temperature will decrease by 5.4 F°.

Next, we can calculate how much the temperature will decrease from the base of the mountain to the summit:

3,000 ft / 1,000 ft = 3

This means that the elevation difference between the base of the mountain and the summit is 3,000 - 0 = 3,000 ft.

So, the temperature decrease from the base to the summit is:

-5.4 F° / 1,000 ft * 3,000 ft = -16.2 F°

This means that the temperature at the summit will be:

27 F° - 16.2 F° = 10.8 F°

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if you swim diagonally across the pool, you would be swimming for 15 meters.

A rectangle is a 2-dimensional shape with four straight sides and four right angles. It is a type of quadrilateral where opposite sides are parallel and congruent, and all angles are 90 degrees (right angles). The length of a rectangle is typically defined as the longer side, and the width is the shorter side.  

We can use the Pythagorean theorem to find the length of the diagonal:

diagonal² = width² + length²

Substituting the given values, we get:

diagonal² = 9² + 12²

diagonal² = 81 + 144

diagonal² = 225

diagonal = √(225)

diagonal = 15 meters

Therefore, if you swim diagonally across the pool, you would be swimming for 15 meters.

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The value of x is 72°

An arc is any smooth curve joining two points. The length of an arc is known as its arc length.

A sector is the area bounded by two radii and an arc.

The measure of an arc is defined to be equal to the central angle of its sector.

Since the angle of the sector formed is 72° and it has been stated that the measure of an arc is defined to be equal the central angle of its sector, then we can say that the value of arc x is 72°.

Therefore the value of x is 72°.

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Answer:

hi i can help you if you want just text

Craig should make approximately 36 shirts to maximize his earnings for the week.

The maximum value of x for a quadratic equation, ax² + bx + c is given by the formula:

x (max) = -b/2a

Since the weekly income can be modeled by the function p(x)= −2x² + 145x.

In this case a = -2 and b = 145. Thus,
x (max) = -145/2(-2)

           =  145/4

           =  36.25

Thus, Craig should make approximately 36 shirts to maximize his earnings for the week

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Answer:

f≤ 12

Step-by-step explanation:

The cat can only eat up to 12 oz, but can also eat 12 oz, so we have to use the less than or equal to symbol to represent that.

So, option D is correct.

f≤ 12

The median nerve and Klumpke's palsy are both related to nerve injuries in the arm, but they involve different nerve pathways and result in different symptoms.

The median nerve runs from the brachial plexus in the neck through the arm to the hand, and controls movement and sensation in the thumb, index, middle, and part of the ring fingers. Damage to the median nerve can result in symptoms such as weakness, numbness, and tingling in these fingers, as well as muscle wasting in the thumb.

Klumpke's palsy, on the other hand, involves damage to the lower brachial plexus nerves, specifically the C7, C8, and T1 nerve roots. This can result in weakness or paralysis in the hand and wrist, with symptoms such as a claw-like deformity, decreased grip strength, and loss of sensation in the affected areas.

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Answer:

(i) Calculation:

1 GB = 1000 MB

Number of videos that could be stored = (1 GB / 100 MB) = 10

Therefore, William can store 10 videos on his computer if each video is 100MB in size.

(ii) Algorithm using pseudocode:

Ask the user to input the file size in megabytes.

Multiply the file size by 1,000,000 to convert it to bytes.

Print the result in a user-friendly format by dividing the bytes by 1,048,576 and rounding to two decimal places, and adding "MB" and "bytes" to the output.

Pseudocode:

Input file_size_in_mb

Set bytes = file_size_in_mb * 1000000

Set result = round((bytes / 1048576), 2)

Output "There are " + result + " MB " + bytes + " bytes".

The missing angles are sides are;

We can see that we would have to first apply the cosine rule here;

[tex]a^2 = b^2 + c^2 - 2abCos A\\a^2 = (17)^2 + (19.6)^2 - 2(17 * 19.6)Cos 30\\a^2 = 673.16 - 666.4Cos 30[/tex]

a = 9.8

We can now apply the sine rule to obtain the angle B

[tex]a/Sin A = b/Sin B\\SinB = bSin A/a\\B = Sin-1 ( bSin A/a)\\B = Sin-1(17 * Sin 30/9.8)[/tex]

B = 60

Then;

C = 180 - (30 + 60)

C = 90 degrees

Thus the triangle in the problem have been solved.

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Answer: 274 degrees.

Step-by-step explanation:

If the temperature in an oven increases by 8 degrees every minute, then in 3 minutes the temperature will increase by 8 x 3 = 24 degrees.

Therefore, the temperature in the oven after 3 minutes will be:

250 + 24 = 274 degrees.

Enhance your academic performance by formulating specific, attainable objectives.

This includes identifying a mark for every course, simplifying complex projects into feasible assignments, and devising a timetable that incorporates allocated intervals for homework, test review, and preparation.

Furthermore, seeking assistance from educators or tutors, remaining organized, and practicing sound time management techniques can all augment one's grades.

It must be emphasized, however, that measurable progress is the result of patience and diligence, but with unwavering dedication, anyone can surmount their scholastic aspirations.

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Step-by-step explanation:

Radius = 70 cm    then diameter = 140 cm

Circumference = rope length = pi * diameter

                       = 140 * pi = 439.8 cm long   (round as needed)

Answer: C) 15 cm, D) 10 cm

Step-by-step explanation:

Let's use the scale to convert the measurements on the drawing to real-life measurements in feet:

3 cm on the drawing = 4 feet in real life

To determine which lines on the drawing would be greater than 12 feet in real life, we need to find the lines on the drawing that correspond to more than 12 feet in real life.

For each line on the drawing, we can convert its length to feet using the scale:

A) 12 cm = (12/3) * 4 = 16 feet

B) 6 cm = (6/3) * 4 = 8 feet

C) 15 cm = (15/3) * 4 = 20 feet

D) 10 cm = (10/3) * 4 = 13.33 feet

Therefore, the lines that are greater than 12 feet in real life are C) 15 cm and D) 10 cm.

Answer:

C + D

Step-by-step explanation:

Answer:



Step-by-step explanation: