Find the length of segment CD.

Therefore, the correct answer is that these two events are dependent.

The given events are dependent events. To check whether the two events are dependent or independent, check the following case.

If A and B are independent events, then the conditional probability of A given B is:

P(A|B) = P(A)If A and B are dependent events, then the conditional probability of A given B is:

P(A|B) = P(A and B) / P(B)Now let's solve the problem stated in the question:

A card is drawn off a 52-card deck. Let A be the event "The card is a heart" and let B be the event "The card is a queen".

Now, let us calculate the P(A and B):

We know that,

P(B) = 4/52 = 1/13. (because there are 4 queens in a deck of cards)

For P(A and B), we need to find the probability of drawing a Queen of Hearts. That is,

P(A and B) = 1/52. (Because there is only one queen of hearts in the deck)

Now let us calculate the P(A|B):P(A|B) = P(A and B) / P(B) = (1/52) / (1/13) = 1/4 ≠ P(A)Therefore, P(A|B) ≠ P(A).

This means that events A and B are dependent events.

Therefore, the correct answer is that these two events are dependent.

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Answer:

8n+7

Step-by-step explanation:

The correct option is d. Neither Type I nor Type II error.  The concepts of Type I and Type II errors, and to use appropriate methods and sample sizes to minimize the risk of making such errors.

To understand why, let's first define Type I and Type II errors. Type I error is rejecting a true null hypothesis, while Type II error is failing to reject a false null hypothesis.

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Hints:

Step 1: Use Sine law the the angle B.

a/Sin A=b/SinB=c/SinC

24/Sin61^=12/SinB (accross multiply)

SinB=12Sin61^/24

SinB=0.437309853 then convert to degree =25.9 degree( depends on question rounded how many decimal) Read the question it must notes there.

--> Angle C=180-61-25.9=93.1 degree.

Step 2: Use Cosine law to calculate.

c^2=a^2+b^2−2ab⋅cosC

c^2=24^2+12^2-2(24)(12)cos93.1

c^2=720-576(-0.054078812)

c^2=720+31.11494

c^2=751.1494

c=27.4

(Square root take exponent off)

Step-by-step explanation:

Answer:

is 16.5 an answer

Step-by-step explanation:

You would do 1.10 x 15 or just add 1.10 15 times

Answer:

\(F=\frac{K Q1Q2}{d^2} \\\)

Step-by-step explanation:

According to coulombs law "the force of attraction or repulsion between two charges Q1 and Q2 in a given medium is directly proportional to the product of their charges and inversely proportional to the square of the distance separating them"

\(F=\frac{K Q1Q2}{d^2} \\\)

where

k = constant of proportionality (\(9.05*10^9\))

Answer:

it is c

Step-by-step explanation:

Answer:

About 71.77 degrees

Step-by-step explanation:

The starting leg is 2.3 km and the finishing leg is 6.2 km.

Using the law of cosines C^2 = A^2 + B^2 -2AB*cos(c) where A = 2.3 km, B = 6.2 km, C = 5.9 km, and angle c is the opposite angle to side C, we get:

5.9^2 = 2.3^2 + 6.2^2 -2(2.3)(6.2)*cos(c)

cos(c) = -(5.9^2 - 2.3^2 - 6.2^2)/(2*2.3*6.2)

c = 71.77 degrees

Answer:

72°

Step-by-step explanation:

when we have all the sides and need an angle, we use the law of cosine (the extended Pythagoras) :

c² = a² + b² - 2ab×cos(C)

where c is the side opposite of the angle C.

so, since the starting leg is 2.3 km, and the finishing leg is 6.2 km, we know that 5.9 km is the side opposite of the angle between the starting and finishing legs.

so, we have

5.9² = 2.3² + 6.2² - 2×2.3×6.2×cos(C)

34.81 = 5.29 + 38.44 - 28.52×cos(C)

-8.92 = -28.52×cos(C)

cos(C) = -8.92/-28.52 = 0.312762973...

C = 71.77418076...° ≈ 72°

Answer:

x = 11

Step-by-step explanation:

1) A line is equal to 180°. Subtract 70° from the 180°:

180 - 70 =

110

2) To find x set 7x +33 equal to 110:

110 = 7x +33

3) Subtract 33 from both sides:

77 = 7x

4) Divide both sides by 7

x = 11

Answer:

the answer is 3,9

Step-by-step explanation:

-3x+2y=9

3(x+y=12)

-3x+2y=9

3x+3y=36

5y=45

_ __

5 5

y=9

x+y=12

x+9=12

-9 -9

_______

x=3

Answer:

He only added Sundays run

Step-by-step explanation:

The area of the largest equilateral triangle that can be inscribed in a square of side length 1 unit is (1/4) * √3 square units.

To find the area of the largest equilateral triangle that can be inscribed in a square of side length 1 unit, follow these steps:

1. Draw an equilateral triangle inside the square with one of its vertices touching the midpoint of the bottom side of the square, and the other two vertices touching the midpoints of the other two sides.

2. The height (h) of the equilateral triangle can be found using Pythagorean theorem. Since the triangle is equilateral, it can be split into two 30-60-90 right triangles. In this case, the shorter leg (a) is half the side length of the square (1/2), and the longer leg (b) is the height of the equilateral triangle (h).

3. In a 30-60-90 triangle, the ratio of the sides is a:b:h = 1:√3:2. Therefore, we can write the equation:

1/2 : h : 1

4. To find the value of h, we can set up the proportion:

(1/2) / h = 1 / √3

5. Cross-multiply to solve for h:

h = (1/2) * √3

6. Now we can find the area (A) of the equilateral triangle using the formula:

A = (1/2) * base * height

In this case, the base is the side length of the square (1 unit) and the height is h:

A = (1/2) * 1 * ((1/2) * √3)

7. Simplify the expression:

A = (1/4) * √3 square units

So, the area of the largest equilateral triangle that can be inscribed in a square of side length 1 unit is (1/4) * √3 square units.

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Answer:

The exact value of

sin

(

30

)

sin(30) is

1

2

12.

15

⋅

1

2

15⋅12

Combine

15

15 and

1

2

12.

15

2

152

The result can be shown in multiple forms.

Exact Form:

15

2

152

Decimal Form:

7.5

7.5

Mixed Number Form:

7

1

2

712

Step-by-step explanation:

The total cost  of he meat with tax and tip is $ 22.42

To calculate the total cost with tax and tip, we need to follow these steps:

multiply the meal cost by the tip rate. when  the tip rate is 18%, we have:

Tip amount = $19.00 * 0.18 = $3.42

Add the meal cost, sales tax, and tip amount to get the total cost:

Total cost = Meal cost + Sales tax + Tip amount

= $19.00 + $3.42

= $ 22.42

Therefore, the total cost with tax and tip is $22.42

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The correct option is C)Yes, using the result from the 2014 survey only slightly increases the sample size. This means that using the result from the 2014 survey, which estimated the proportion of e-cigarette users, only slightly increases the sample size needed for the current survey.

Proportion refers to the relative or fractional amount or share of a particular characteristic or attribute within a population or sample. It is commonly expressed as a percentage or a decimal, representing the ratio of the number of individuals or items exhibiting the characteristic of interest to the total number of individuals or items in the population or sample.

According to the given information:

C. Yes, using the result from the 2014 survey only slightly increases the sample size.

The sample size required for a survey depends on several factors, including the desired confidence level, margin of error, and the estimated proportion of the population with the characteristic of interest (in this case, the current e-cigarette usage rate).

In this scenario, the confidence level is given as 99% and the margin of error as 2 percentage points. The estimated proportion of the population with the characteristic of interest is 3.74% based on the 2014 survey. Using these parameters, a sample size can be calculated using a sample size formula for estimating proportions.

The formula for calculating the sample size for estimating proportions is:

n = (Z^2 * p * (1-p)) / (E^2)

Where:

n = sample size

Z = z-score corresponding to the desired confidence level

p = estimated proportion of the population with the characteristic of interest

E = margin of error

Plugging in the given values:

Confidence level = 99% => Z = 2.62 (corresponding z-score for a 99% confidence level)

Margin of error = 2 percentage points => E = 0.02

Estimated proportion of e-cigarette users from the 2014 survey = 3.74% => p = 0.0374

Using these values in the sample size formula, we get:

n = (2.62^2 * 0.0374 * (1-0.0374)) / (0.02^2)

n ≈ 1022.8

So, the sample size required for the current survey is approximately 1023. This means that using the result from the 2014 survey, which estimated the proportion of e-cigarette users, only slightly increases the sample size needed for the current survey.

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There are 15 different books and 3 each can be arranged on a shelf i.e., there are 15/3 i.e., 5 shelves to arrange the book in the the display case.

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Answer:

Hypotenuse would be 14

Step-by-step explanation:

By forming and solving the equation according to the given situation, we know that 120 workers is needed to clear 50 acres in 5 days.

A mathematical equation is a formula that uses the equals sign to represent the equality of two expressions.

Ax+By=C is the usual form for two-variable linear equations.

A standard form linear equation is, for instance, 2x+3y=5. When an equation is given in this format, finding both intercepts is rather simple (x and y).

When attempting to solve systems involving two linear equations, this form is also quite helpful.

So, to find the number of workers needed, form the equation:

8/20 - 3 = x/50 - 5

Now, solve the above equation as follows:

8/20 - 3 = x/50 - 5

8 - 3*20/20 = x - 5*50/20

8 - 60/20 = x - 250/50

(8 - 60)50 = (x - 250)20

400 - 3000 = 20x - 5000

20x = 400 - 3000 + 5000

20x = 400 + 2000

20x = 2400

x = 2400/20

x = 120

Therefore, by forming and solving the equation according to the given situation, we know that 120 workers is needed to clear 50 acres in 5 days.

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a) The probability of randomly selecting 4 males out of 7 spectators, given that 70% of the spectators are males, can be calculated using the binomial probability formula.

b) To find the probability that at most 5 of the randomly selected spectators are females, we need to calculate the cumulative probability of selecting 0, 1, 2, 3, 4, and 5 females from the total number of selected spectators.

a) To calculate the probability of selecting 4 males out of 7 spectators, we can use the binomial probability formula:

P(X = k) = C(n, k) * p^k * (1 - p)^(n - k)

Where:

- n is the total number of trials (number of people selected)

- k is the number of successful trials (number of males selected)

- p is the probability of success in a single trial (probability of selecting a male)

- C(n, k) is the binomial coefficient, calculated as C(n, k) = n! / (k! * (n - k)!)

In this case, n = 7, k = 4, and p = 0.70 (probability of selecting a male). Therefore, the probability of selecting 4 males out of 7 spectators is:

P(X = 4) = C(7, 4) * (0.70)^4 * (1 - 0.70)^(7 - 4)

b) To find the probability that at most 5 of the selected spectators are females, we need to calculate the cumulative probability of selecting 0, 1, 2, 3, 4, and 5 females. This can be done by summing the individual probabilities for each case.

P(X ≤ 5 females) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4) + P(X = 5)

To calculate each individual probability, we use the same binomial probability formula as in part a), with p = 0.30 (probability of selecting a female).

Finally, we sum up the probabilities for each case to find the probability that at most 5 of the selected spectators are females.

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P(B) such that a and b are mutually exclusive is 0.23

A group of potential results from a specific experiment is an event. Events that do not take place at the same time are said to be mutually exclusive. For instance, if a coin is tossed, the outcome will either be head or tail; we cannot obtain both outcomes. Since they do not occur at the same time, such occurrences are also known as disjunct events.

Given: P(A) =0.28

P(AUB) = 0.51

We know,

P(AUB) = P(A) + P(B) - P(A∩B)

Since A and B are mutually exclusive events, they cannot happen together.

So, P(A∩B) = 0

Then,

P(AUB) = P(A) + P(B)

0.51 = 0.28+ P(B)

P(B) = 0.51 - 0.28 = 0.23.

Hence, P(B) = 0.23

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False. When comparing means of two groups with equal sample sizes, we can use either a paired test or an independent samples test.

The choice between the two depends on the design of the study and the nature of the data.

A paired test is used when the data are paired or matched in some way. For example, in a pre- and post-test design, the same group of individuals is measured before and after an intervention, and the difference between the two measurements is analyzed. In this case, a paired t-test would be appropriate.

On the other hand, an independent samples test is used when the data are not paired or matched. For example, in a randomized controlled trial, individuals are randomized to receive either an intervention or a control, and the means of the two groups are compared. In this case, an independent samples t-test would be appropriate.

Therefore, the decision to use a paired test or an independent samples test depends on the research question, the design of the study, and the nature of the data.

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The expanded form of 500,000 is (5*100,000) + (0*10,000) + (0*1,000) + (0*100) + (0*10) + (0*1), which on simplifying can be written as (5*100,000).

In math, the expanded form enables us to comprehend a number more clearly. Take the number 875294831 as an example. This amount is impossible to comprehend. Here, an expanded form enables us to comprehend each numeral according to its place value. Let's try to determine the extended form of the straightforward number 423. The expanded form of 423 is (4*100) + (2*10) + (3*1). It denotes that there are 4 hundred, 2 tens, and 3 ones in this number. Through its expanded form, a number's meaning for each digit is clearly understood.

In the question, we are asked to write the expanded form of 500,000.

Similar to our example, we can write the expanded form of 500,000 as

(5*100,000) + (0*10,000) + (0*1,000) + (0*100) + (0*10) + (0*1),

which when simplified can be shown as (5*100,000).

Thus, the expanded form of 500,000 is (5*100,000) + (0*10,000) + (0*1,000) + (0*100) + (0*10) + (0*1), which on simplifying can be written as (5*100,000).

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Answer:

(0,-1) I could be wrong

Step-by-step explanation:

Answer:

Step-by-step explanation:

-2x+9y=-9 (solve for x)

-2x= -9y-9

X = - 9y/-2 - - 9/2. X = 9y/2 + 9/2

9(9/2y+9/2)-2y=2

81y/2 + 81/2 - 2y = 2

81y/2 - 2y = 2 - 81/2. 81/2 - 2 = 77/2 and -81/2 +2 = -77/2

77/2 y = - 77/2

y = (-77/2)/(77/2)

y = - 1

Answer:

2 + 2 ㏑2

Step-by-step explanation:

y = x (e^x)

to dy/dx (slope), we need to perform the product rule:

if y = f(x) g(x), where both f(x) and g(x) are functions in x, then dy/dx = f(x) g'(x) + f'(x) g(x).

let u = x (dy/dx = 1) and v = e^x ( dv/dx = e^x).

then dy/dx = u (dv/dx) + v (du/dx)

= x (e^x) + e^x. this is the slope.

at x = ㏑2:

dy/dx = ㏑2 (e^㏑2) + e^㏑2

= ㏑2 (2) + 2

= 2 + 2 ㏑2

The values of p for which the integral converges is 40.

It should be noted that an integral is the continuous analog of a sum, which is used to calculate areas, volumes, and their generalizations. In this case, integration, is the process of computing an integral, is one of the two fundamental operation of calculus, the other being differentiation.

The value will be calculated thus:

Let p = 0

I = ∫(1, 0) 40dx

= 40

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Answer:

14/3(I believe you mean improper fraction)

Step-by-step explanation:

4 mutiply 3 plus 2

Using the formula for complementary and supplementary angles, the value for measure of ∠3 is obtained as 33°.

What is a supplementary angle?

The definition of "supplementary" in mathematics relates to angles that combine to form a straight angle. It indicates that when two angles sum up to 180 degrees, they are said to be supplementary angles.

Since ∠1 and ∠2 are supplementary angles, their measures add up to 180 degrees -

m∠1 + m∠2 = 180°

We know that m∠1 = 123°, so we can substitute that in -

123° + m∠2 = 180°

Subtracting 123° from both sides gives -

m∠2 = 57°

Since ∠2 is a complement of ∠3, their measures add up to 90 degrees -

m∠2 + m∠3 = 90°

We know that m∠2 = 57°, so we can substitute that in -

57° + m∠3 = 90°

Subtracting 57° from both sides gives -

m∠3 = 33°

Therefore, the measure of ∠3 is 33 degrees.

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Answer:

200

Step-by-step explanation:

Answer:

B. Inches

Step-by-step explanation:

Because it measures the length of something, Not the weight.

Answer:

C

Step-by-step explanation:

weight in the USA is usually measured in LBS (pounds)