How many grapes?
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The probability that a student buys coffee OR a muffin before class is 55%

The given parameters are:

P(Coffee) = 30%

P(Muffin) = 40%

P(Tea) = 20%

P(Coffee and Muffin) = 15%

P(Tea and Muffin) = 10%

The probability that a student buys coffee OR a muffin before class is

P(Coffee or Muffin) = P(Coffee) + P(Muffin) - P(Coffee and Muffin)

This gives

P(Coffee or Muffin) = 30% + 40% - 15%

Evaluate

P(Coffee or Muffin) = 55%

Hence, the probability that a student buys coffee OR a muffin before class is 55%

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Answer:

76

Step-by-step explanation:

10 * 4 + 6 ^ 2  = 40 + 36 = 76

The selection chances and the required probability for 9 women and 6 men is given by ,

Different groups of applicants selection = 3003

Selection of trainee entirely of women = 126

Probability of selection of entirely women from 15 people = 4.19%

Total number of women = 9

Total number of men = 6

Total = 9 + 6

        = 15

The total number of groups of applicants that can be selected for the positions can be calculated using the combination formula,

nCr = n! / r!(n-r)!

where n is the total number of applicants (15),

And r is the number of positions to be filled (5).

Number of different groups of applicants that can be selected for the positions is,

15C5

= (15! )/(15-5)!5!

=(15! )/(10)!5!

= 3003

Number of different groups of trainees that consist entirely of women can be calculated by selecting 5 women from the 9 available,

9C5

= (9! )/(9-5)!5!

=(9! )/(4)!5!

= 126

Probability of selecting a group of five trainees ,

Consist entirely of women can be calculated by dividing the number of different groups of all-women trainees (126) by the total number of different groups of trainees (3003),

Required probability

= 126/3003

≈ 0.0419

Probability that the trainee class will consist entirely of women is approximately 0.0419, or 4.19% (rounded to four decimal places).

Therefore, for a group of 15 people,

Selection of different groups of people = 3003

Selection of trainee represents entirely women =126

probability of selecting entirely women = 4.19%

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When the sample size is increased, the LCL comes closer to the process mean and the UCL moves farther from the process mean.Hence, (c) When a Type I error is made, the process will be declared out of control and adjusted when the process is actually in control.

(d) When a Type II error is made, the process will be declared in control and allowed to continue when the process is actually out of control. The probability of a Type I error for a sample of size 10 is 0.0027, for a sample of size 20 is 0.0014, and for a sample of size 30 is 0.0010. Increasing the sample size provides a more accurate estimate of the process mean and reduces the probability of making a Type I error.

The advantage of increasing the sample size for control chart purposes is that the error probability is reduced as the

When the sample size is increased, the LCL comes closer to the process mean and the UCL moves farther from the process mean.The process will be declared out of control and adjusted when the process is actually in control.When a Type II error is made, the process will be declared in control and allowed to continue when the process is actually out of control.

The probability of a Type I error for a sample of size 10 is 0.0027, for a sample of size 20 is 0.0014, and for a sample of size 30 is 0.0010.The advantage of increasing the sample size for control chart purposes is that the error probability is reduced as the sample size is increased.

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The situation in which an ARIMA (Autoregressive Integrated Moving Average) model has a decided advantage over standard regression models is when we don't know the independent variables of the variable to be forecast. In this case, ARIMA models can capture the time series patterns and dynamics of the variable without relying on specific independent variables.

ARIMA models are particularly useful when dealing with time series data where the relationship between variables may not be well understood or when the data lacks a clear set of independent variables that can explain the variation in the variable to be forecasted. By incorporating lagged values and differencing to capture autocorrelation and stationarity in the data, ARIMA models can provide accurate forecasts without the need for explicit knowledge of independent variables.

In contrast, standard regression models require knowledge of the independent variables and their relationships with the dependent variable. These models assume a linear relationship and rely on the availability and quality of relevant independent variables. If the independent variables are unknown or difficult to determine, ARIMA models offer a more flexible and data-driven approach to forecasting, making them advantageous in such situations.

Overall, the advantage of ARIMA models lies in their ability to capture and forecast time series data without the need for explicit knowledge of independent variables, making them suitable for scenarios where independent variables are unknown or difficult to ascertain.

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The 98% confidence interval for the population mean (μ) is approximately (2.711, 3.009).

1: Identify the given data

Sample size (n) = 150 students

Sample mean (x) = 2.86

Population standard deviation (σ) = 0.78

Confidence level = 98%

2: Find the critical z-value (z*) for a 98% confidence level

Using a z-table or calculator, you'll find that the critical z-value for a 98% confidence level is 2.33 (approximately).

3: Calculate the standard error (SE)

SE = σ / √n

SE = 0.78 / √150 ≈ 0.064

4: Calculate the margin of error (ME)

ME = z* × SE

ME = 2.33 × 0.064 ≈ 0.149

5: Construct the confidence interval

Lower limit = x - ME = 2.86 - 0.149 ≈ 2.711

Upper limit = x + ME = 2.86 + 0.149 ≈ 3.009

The 98% confidence interval is approximately (2.711, 3.009).

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Answer:

- 14

Step-by-step explanation:

a = 3

a^2 - 6a - 5

= 3^2 - 6 ( 3 ) - 5

= 9 - 18 - 5

= 9 - 23

= - 14

Answer:

To make a table NOT a function you can make any input value lead to two or more outputs.

Step-by-step explanation:

Ex.

(2,3)

(1,4)

(6,7)

(2,8)

Answer:

Step-by-step explanation:

you know the angle of P to be 180-60 = 120  so convert 120° to radians

120 * \(\pi\)/180 = 2\(\pi\)/3  I don't see that as a choice for the answers.. maybe it's off the screen?

To calculate the Loan to Value (LTV) ratio, we divide the loan amount by the purchase price of the property and express the result as a percentage. LTV = 80%

Given: Purchase price of the building: $8,000,000 Loan amount: $6,400,000 LTV = (Loan amount / Purchase price) * 100 LTV = ($6,400,000 / $8,000,000) * 100 LTV = 0.8 * 100 LTV = 80%

Therefore, the Loan to Value (LTV) ratio in this scenario is 80%. This means that the bank has provided a loan equivalent to 80% of the purchase price of the building.

The remaining 20% of the purchase price, which is $1,600,000 in this case, would be the down payment or equity contribution made by the borrower. Correct answer is 80%

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In the case of the electronic chess game, with a useful life that follows an exponential distribution with a mean of 30 months, we need to determine the length of service time after which the percentage of failed units will approximately equal 50 percent. The options provided are 9 months, 16 months, 21 months, and 25 months.

For the major television manufacturer, the service life of its 50-inch LED televisions follows a normal distribution with a mean of six years and a standard deviation of half a year. We are asked to calculate the probability of service lives of at least five years.

1. Electronic Chess Game:

The exponential distribution is characterized by a constant hazard rate, which implies that the percentage of failed units follows an exponential decay. The mean of 30 months indicates that after 30 months, approximately 63.2% of the units will have failed. To find the length of service time when the percentage of failed units reaches 50%, we can use the formula P(X > x) = e^(-λx), where λ is the failure rate. Setting this probability to 50%, we solve for x: e^(-λx) = 0.5. Since the mean (30 months) is equal to 1/λ, we can substitute it into the equation: e^(-x/30) = 0.5. Solving for x, we find x ≈ 21 months. Therefore, the length of service time after which the percentage of failed units will approximately equal 50 percent is 21 months.

2. LED Televisions:

The service life of 50-inch LED televisions follows a normal distribution with a mean of six years and a standard deviation of half a year. To find the probability of service lives of at least five years, we need to calculate the area under the normal curve to the right of five years (60 months). We can standardize the value using the formula z = (x - μ) / σ, where x is the desired value, μ is the mean, and σ is the standard deviation. Substituting the values, we have z = (60 - 72) / 0.5 = -24. Plugging this value into a standard normal distribution table or using a calculator, we find that the probability of a service life of at least five years is approximately 1.0000 (or 100% with four digits after the decimal point).

Therefore, the probability of service lives of at least five years for 50-inch LED televisions is 1.0000 (or 100%).

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A word is put between to and the verb while splitting an  infinitive. In terms of grammar, splitting an infinitive is acceptable.

In other cases, it might even be more logical to do so. An infinitive is a verb's to form, such as "to go" or "to be."

When it is said that infinitives should never be split, it means an adverb should never come before the verb in the sentence "to confidently proceed."

As we know  split infinitive is one in which the word "to" and the verb in the base (infinitive) form of the verb are separated by one or more words.

Adverbs are the words that split infinitives the most frequently.

Example,

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Answer:

C.12

Explanation:

Let the number of fishes caught by Jack = j

Naomi caught half as many fish as Jack, therefore:

• The number of fishes caught by Naomi = j/2

Together, they caught 18 fishes:

We solve for j.

The number of fishes caught by Jack is 12.

C is the correct choice.

The first 3 terms of the sequence are 21, 24 and 29

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

n² + 20

This means that

f(n) = n² + 20

The first 3 terms of the sequence is when n = 1, 2 and 3

So, we have

f(1) = 1² + 20 = 21

f(2) = 2² + 20 = 24

f(3) = 3² + 20 = 29

Hence, the first 3 terms of the sequence are 21, 24 and 29

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Answer:

Step-by-step explanation:

Yes

Step-by-step explanation:

x =ky

x=12,y=20

12 =20k

divide both sides by 20

k=12/20

= 6/5

X=6/5y

Answer: 17

Step-by-step explanation:

Andy reads 22.5 pages per hour, so it takes her 1 hour to read 22 and a half pages. She wants to read MORE than 360 pages. So you divide 360 by 22.5 to get how many hours it takes her to read exactly 360 pages which is 16. But she wants to read more than 360 so 17 hours or anything greater than 16, maybe even 16.5.

The complement of the event is diamond, club or spade.

The complement of an event means " to not choose the mentioned one" .

That is in mathematics we define complement as 1 - E, which is also written as E with a bar, here E represents the event.

In this question we would have to pick a card which is complementary to the heart that is the card needs to be a diamond, spade or a club.

Thus the complement of the event is diamond, club or spade.

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The new vertices of the triangle after the translation are A'(-3, 7), B(-2, 0), and C(1, 7), which form the resultant matrix:

|-3 -2 1 |

| 7 0 7 |

| 1 1 1 |

In mathematics, a translation refers to a geometric transformation that moves every point in a figure or a space by the same distance in a given direction. In other words, it involves sliding a figure or a point to a new location without changing its size, shape, or orientation.

To translate the triangle by a vector (x, y), we use the following transformation matrix:

|1 0 x|

|0 1 y|

|0 0 1|

For the given triangle with vertices at A(-1, 3), B(0, -4), and C(3, 3), let's assume we want to translate it by a vector (−2, 4). Then the transformation matrix for translation is:

|1 0 -2|

|0 1 4 |

|0 0 1 |

To apply this transformation matrix to each vertex of the triangle, we represent the vertices as column vectors and multiply them by the matrix:

| -1 | | 1 0 -2 | | -3 |

| 3 | -> | 0 1 4 | = | 7 |

| 1 | | 0 0 1 | | 1 |

| 0 | | 1 0 -2 | | -2 |

| -4 | -> | 0 1 4 | = | 0 |

| 1 | | 0 0 1 | | 1 |

| 3 | | 1 0 -2 | | 1 |

| 3 | -> | 0 1 4 | = | 7 |

| 1 | | 0 0 1 | | 1 |

So, the new vertices of the triangle after the translation are A'(-3, 7), B(-2, 0), and C(1, 7), which form the resultant matrix:

|-3 -2 1 |

| 7 0 7 |

| 1 1 1 |

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The function with the greater rate of change is f(x). Its rate of change is 3. The function with the smaller y-intercept is function g(x). Its y-intercept is at y value of 1.

In Mathematics and Geometry, the slope-intercept form of the equation of a straight line is given by this mathematical equation;

y = mx + b

Where:

For the rate of change of f(x), we have:

f(x) = 3x + 2

Rate of change of f(x) = 3.

y-intercept of f(x) = 2.

For the rate of change of g(x), we have:

Rate of change of g(x) = rise/run.

Rate of change of g(x) = 4/2

Rate of change of g(x) = 2.

y-intercept of g(x) = 1.

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Missing information:

The question is incomplete and the complete question is shown in the attached picture.

The point on the curve where the tangent line is parallel to the plane is (-2sin(arccos(-a/2)), 2cos(arcsin(-b/2)), c).

To find the point on the curve r(t) = (-2sin(t),2cos(t),e^t) where the tangent line is parallel to the plane, we need to find the derivative of the curve and set it equal to the normal vector of the plane.

The derivative of the curve r(t) is:

r'(t) = (-2cos(t), -2sin(t), e^t)

The normal vector of the plane is (a,b,c).

To find the point where the tangent line is parallel to the plane, we need to set the derivative equal to the normal vector:

-2cos(t) = a

-2sin(t) = b

e^t = c

Solving for t, we get:

t = arccos(-a/2)

t = arcsin(-b/2)

t = ln(c)

Plugging these values of t back into the original equation for the curve, we can find the point on the curve where the tangent line is parallel to the plane:

x = -2sin(arccos(-a/2))

y = 2cos(arcsin(-b/2))

z = e^(ln(c))

So the point on the curve where the tangent line is parallel to the plane is (-2sin(arccos(-a/2)), 2cos(arcsin(-b/2)), c).

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Answer:

1. R= 1.25 or 5/4, 7.81, 9.76, 12.2

2. R=-1/3, -32, 10.66, -3.55

3. 12= -38.4, 10 = -60

7. at bounce 5 the height of ball is 48, the common ratio times 0.75 or 3/4.

*I don't understand the round to hundred part of question.

10. R=1/4 or 0.25, 5th term = 0.39

Step-by-step explanation:

The equation of the line for m in terms g would be 16m = 244g - 16.8.  

What is the equation of the line?

A straight line's general equation is y = mx + c, where m is the gradient and y = c is the value at which the line intersects the y-axis. This number c is known as the y-axis intercept. The most important point. A straight line with gradient m and intercept c on the y-axis has the equation y = mx + c.

Let y represent the distance driven in miles for x gallons.

The points from the table would be (21, 321.3) and (37, 566.1)

Now by using the two-point form of the line:

                           \(\frac{y-y_1}{y_1-y_2}= \frac{x-x_1}{x_1 - x_2}\\\\\frac{y-321.3}{321.3-566.1}= \frac{x-21}{21 -37}\\\\\frac{y-321.3}{-244.8}= \frac{x-21}{-16}\\\\16(y-321.3) = 244(x-21)\\\\16y - 5140.8=244x-5124\\\\16y = 244x - 16.8\)

Let's replace y = m and x = g, we get

                         16m = 244g - 16.8

Hence, the equation of the line for m in terms g would be 16m = 244g - 16.8.      

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Answer:

6(x+4)

Step-by-step explanation:

The GCF is 6 thus factor the expression

The given expression 6x + 24 can be factored using the GCF as 6(x + 4).

Factorization, also known as factoring, is the breakdown of one element into a product of other objects, or factors, which when multiplied together generate the original. For example, the number 21 factors into primes as 3 × 7, and the polynomial x² − 9 factors as (x+3)(x-3).

The expression is given in the question as:

6x + 24

The expression 6x + 24 can be factored using the greatest common factor (GCF) as follows:

⇒ 6x + 24 = (6x + 24) / 6 × 6

The GCF of 6x + 24 is 6, so we can divide both terms by 6 to get:

⇒ 6x + 24 = (x + 4) × 6

We can then factor out the common factor of 6 to get:

⇒ 6x + 24 = 6(x + 4)

Thus, the given expression 6x + 24 can be factored using the GCF as 6(x + 4).

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Answer:

The slope of the line would be 1

(4-1)/(6-3)= 1

Answer:

In the problem, the sum of the two functions is 2x + 2

Step-by-step explanation:

For this problem, we have to add together f(x) and g(x).

f(x) = 9 - 3x

g(x) = 5x - 7

(f + g)(x) = (9 - 3x) + (5x - 7)

Combine like terms.

(f + g)(x) = 2x + 2

So, when you combine the two functions together, you will get 2x + 2.

The value of f(x)+g(x) according to the question given is; 2x + 2.

To evaluate the sum of functions f(x) and g(x); we have;

Therefore;

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

In the first sequence,

let's take ratio of the next term with its preceding term, so we will get the common ratio ~

\(\qquad \sf  \dashrightarrow \: \cfrac{4}{16} = \dfrac{1}{4} \)

So, we can imply that The next term of the sequence is 1/4 times the previous term.

hence, the unknown term will be 1/4 times of previous term.

Therefore, the next term here is 1

In the second sequence,

Do the same procedure as above, we will get common ratio as :

\(\qquad \sf  \dashrightarrow \: \cfrac{18}{6} = 3\)

So, the next term is 3 times the preceding term, that is :

Therefore, the next term is 162