9) There are six girls and 12 boys in Ms. Jeffry's environmental club. She wants to divide the students into groupS with the same number of boys and the same number of girls in each group. What is the maximum number of groups she can make? *​

The model y = b0 + b1x1 + b2x2 + e is a second-order regression model that is False and the model y = b0 + b1x1 + b2x2 + b3x3 + e, e is a constant is False.

The given model is not a second-order regression model, rather it is a multiple linear regression model because the dependent variable is associated with multiple independent variables.

If the model was quadratic, cubic, etc, then it would be a second-order regression model or higher-order regression model respectively.

A regression model is used to predict the value of the dependent variable based on the independent variable(s). The multiple linear regression model represents the relationship between the dependent variable and two or more independent variables.

It can be represented as y = b0 + b1x1 + b2x2 + ... + bnxn + e.

Here, b0 represents the intercept or the value of the dependent variable when all independent variables are equal to zero, b1, b2, ... bn represent the slope of the regression line and x1, x2, ... xn represent the values of the independent variables.

The error term (e) represents the random error present in the data.2.

In the model y = b0 + b1x1 + b2x2 + b3x3 + e, e is a constant.
False
The error term e in the given model y = b0 + b1x1 + b2x2 + b3x3 + e is not a constant. Instead, it represents the random error present in the data. A constant is a fixed value that does not change throughout the regression model.

The model y = b0 + b1x1 + b2x2 + b3x3 + e is a multiple linear regression model that represents the relationship between the dependent variable y and three independent variables x1, x2, and x3.

The intercept or the value of the dependent variable when all the independent variables are equal to zero is represented by b0. The slopes of the regression line for x1, x2, and x3 are represented by b1, b2, and b3 respectively.

The error term e represents the random error present in the data that cannot be explained by the independent variables. It is not a constant because it varies from one observation to another. A constant is a fixed value that does not change throughout the regression model.

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The required value of the 30th percentile of the given data set 7 12 3 14 17 20 5 3 17 4 13 2 15 9 15 18 16 9 1 6 is equal to 5.

To find the value of the 30th percentile,

We need to sort the data set in ascending order first,

1, 2, 3, 3, 4, 5, 6, 7, 9, 9, 12, 13, 14, 15, 15, 16, 17, 17, 18, 20

The 30th percentile is the value below which 30% of the data falls.

To find this value, we can use the formula,

P = (n / 100) × x

where P is the desired percentile (30th percentile in this case),

n is the total number of data points,

And x is the rank of the value corresponding to the desired percentile.

Here,

The total number of data points n = 20

x = (30 / 100) × 20

  = 6.

This means that the value corresponding to the 30th percentile is the 6th value in the sorted data set, which is 5.

Therefore, the value of the 30th percentile for the given data set is 5.

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The middle 80% of sample mean weights of 50 footballs lies between 0.89 and 1.07

A confidence interval is a range of values that is likely to contain the true value of a population parameter with a certain level of confidence.

Assuming that the population of football weights follows a normal distribution, we can use the standard normal distribution to construct the confidence interval. We know that 80% of the area under the normal distribution curve lies within 1.28 standard deviations from the mean. Therefore, we need to find the standard deviation of the sample mean weights to calculate the confidence interval.

Using these values, we can calculate the standard error of the mean as follows:

Standard error of the mean = 0.5 / sqrt(50) = 0.07

Now we can construct the confidence interval for the sample mean weights. The interval is given by:

Sample mean weight +/- z*standard error of the mean

where z is the standard normal distribution value that corresponds to the desired level of confidence. For an 80% confidence interval, z is equal to 1.28.

Plugging in the values, we get:

Sample mean weight +/- 1.28*0.07

Simplifying, we get:

Sample mean weight +/- 0.09

Therefore, the middle 80% of sample mean weights of 50 footballs lie between:

Sample mean weight - 0.09 and Sample mean weight + 0.09

Here let us apply the value of sample mean as 0.98, then we get the sample mean weight as.

=> 0.98 - 0.09 and 0.98 + 0.09

=> 0.89 and 1.07

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The slope is -4/3

This is because from the first dot to the second it is going down (negative) four the to the right (positive) three.

Answer:

Step-by-step explanation:

f(-5)= 4(-5) - 3 = -20-3 = -23

Answer:

5/9.

Step-by-step explanation:

Theoretical probability = number of outcomes with1 or 2 blues

                                         -------------------------------------------------------

                                             number of all possible outcomes

= 5/9

\(\large\underline{\bf\red{Solution:-}}\)

Given that : h(x) = - x - 1 .

And we are required to find the value of h(-2) .

For this just in place of x replace it by -2 .

So ,

=> h(x) = - x - 1.

=> h(x) = - ( x + 1 ) .

=> h(-2) = - ( -2 + 1 )

=> h(-2) = - 1 × -1 .

=> h(-2) = 1

Hence the required answer is 1

Plot the vertex at (0,-3), then go down 2 units and right units to plot a point at (5,-5). Then you can draw your line through the 2 points.

Answer:

hope this will help you more

Answer:

what do you mean by working on Thai forever?

Step-by-step explanation:

Answer:

8x- 160=8x+ 180 answerrrrrrrrrrrrrrrrrr

Answer:

105 teachers

Step-by-step explanation:

15:1  --> 1575:105

1575/15=105

Hope this helps :)

Answer:

T'(-1, -3)

U'(-8, -3)

V'(-9, -10)

W(1, -10)

Step-by-step explanation:

For each point, draw a segment from it to the line y = -x and perpendicular to the line, and extend it the same distance to the other side of the line.

T'(-1, -3)

U'(-8, -3)

V'(-9, -10)

W(1, -10)

Answer:

Multiply 800 by 1.022^7 because 1.022^(n-1)

Step-by-step explanation:

Series and sequences.

The number of waffles can be made from 15 eggs are, 20 waffles.

the waffles can be calculates as follows

4 cups of fluor + 6 eggs +2 tbsp oil = 8 waffles

we need 6 eggs to make 8 waffles

So, the waffles can we make from 15 eggs = \(\frac{8}{6} X 15 = 20\) waffles

Hence, the number of waffles can be made from 15 eggs are 20 waffles.

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Answer:

4

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

The trend line passes through (10, 9) and (35, 0) will be 9x + 25y = 315.

Suppose the given points are (x₁, y₁) and (x₂, y₂), then the equation of the straight line joining both two points is given by

\(\rm (y - y_1) = \dfrac{y_2 - y_1}{x_2 - x_1} (x -x_1)\)

The scatter plot with the trend line below shows the data comparing wind speed and wind chill. Wind Chill (˚F) Wind Speed (mph). The trend line passes through (10, 9) and (35, 0).

Write an equation for the trend line.

(x₁, y₁) → (10, 9)

(x₂, y₂) → (35, 0)

Then we have

        y - 9 = -9/25(x - 10)

25y - 225 = -9x + 90

 9x + 25y = 315

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Note that the proof that ΔABC ≅ ΔEDC is given as follows:

According to the ASA rule, if any two angles and sides included between the angles of one triangle are comparable to the corresponding two angles and sides included between the angles of the second triangle, the two triangles are said to be congruent.

Thus, given the above statements, it is clear that ΔABC ≅ ΔEDC

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Full Question:

Angle BAC is congruent to Angle DEC: Given

C is the midpoint of AE: Given

Prove triangle ABC is congruent to triangle EDC

What are the statements and reasons for this proof?

Answer:

true

Step-by-step explanation:

Let's consider an example with hypothetical data for two crops, Wheat and Rice, obtained from five farmers:

| Farmer | Rabi Crop (tons/ha) | Kharif Crop (tons/ha) |

|--------|--------------------|----------------------|

|   F1   |        4.5         |         6.2          |

|   F2   |        3.8         |         5.5          |

|   F3   |        4.2         |         6.0          |

|   F4   |        5.1         |         7.3          |

|   F5   |        4.9         |         6.5          |

```

To calculate the selling price and profit, you would need additional information such as the selling price per ton for each crop and the cost of production. Let's assume the selling price for Wheat is $200 per ton and for Rice is $250 per ton. We will also assume a production cost of $150 per ton for both crops.

To calculate the profit for each farmer, you can use the following formula:

Profit = (Selling Price - Production Cost) * Production

For example, let's calculate the profit for Farmer F1 with the given data:

Profit for Wheat = (200 - 150) * 4.5 = $225

Profit for Rice = (250 - 150) * 6.2 = $620

Repeat this calculation for each farmer and crop combination to obtain the profits for all.

Once you have the data for production, selling price, and profit, you can create a double bar graph to compare the production of Wheat and Rice in the farmers' fields. The x-axis will represent the farmers, and the y-axis will represent the production (tons/ha). Each farmer will have two bars, one for Wheat and one for Rice, showing the respective production amounts.

Please note that the actual selling price, production costs, and profits may vary based on various factors, and you would need specific data and current market information to calculate accurate values.

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Answer:

5

Step-by-step explanation:

25% of 20 is 5

Answer:

-4 + 2b

Step-by-step explanation:

Simplify the expression.

−4  +  2b

I hope this helped you!

Explanation:

The tickmarks indicate which segments are the same length. On the left side, the single tickmark segments are the same length, and the same can be said about the double tickmarks segments as well. Because of this, the segment x cuts the diagonal sides in half.

The segment x is known as a midsegment of the triangle. It is half as long as the parallel side of 24 units. So x = (1/2)*24 = 12.

Answer:

13.) 237 millimeters

14.) 87.5 feet (87 feet 6 inches)

15.) 28

16.) 121 degrees

Step-by-step explanation:

16.) The "arc length" formula is s = rФ, where Ф represents the central angle in radians (not degrees).

Here r = 18 ft and s = 38 ft, and so:

                                     38 ft

s = rФ becomes Ф = ------------ = 2.111 radians

                                     18 ft

which, in degrees, is:

2.111 rad      180 deg

------------- * --------------- = 121 degrees, to the nearest degree

  1            3.142

Answer:

ahhhhhhhhhhhh

Step-by-step explanation:

hgyftdrseaSADFERTYUFDRES

The probability that a randomly selected home in Queens has 4 or more computers is 0.1 or 10%. The correct answer is (b) 0.10.

The given probability distribution table shows the probabilities of having 1, 2, or 3 computers in a randomly selected home in Queens. However, the probability of having 4 or more computers is not given in the table.

To find the probability of having 4 or more computers in a randomly selected home, we can use the complement rule. The complement rule states that the probability of an event happening is equal to 1 minus the probability of the event not happening. In this case, the event we are interested in is having 4 or more computers in a home, and the complement of this event is having 1, 2, or 3 computers in a home.

So, the probability of having 4 or more computers in a randomly selected home in Queens can be calculated as:

P(4 or more) = 1 - P(1 or 2 or 3)

P(1 or 2 or 3) = P(1) + P(2) + P(3) = 0.4 + 0.3 + 0.2 = 0.9

P(4 or more) = 1 - 0.9 = 0.1

Therefore, the probability that a randomly selected home in Queens has 4 or more computers is 0.1 or 10%. The correct answer is (b) 0.10.

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Answer:

Acute

Step-by-step explanation:

Anything bellow 90 degree is acute

Anything above 90 degree is obtuse (except 180)

A right is just 90 degrees

and straight is just 180 degrees

Answer:

Let ac=ab=5

With this, bc= 5√2

Step-by-step explanation:

So to find ad, Let ad be x

5√2=(2)(x)

(5√2/2)= x

This proves that bc=2ad

Answer:

x = 0, y = 0

or

(0, 0)

Step-by-step explanation:

-24x - 36y = 0

divide the equation by 4

-8x - 9y = 0

-6x - 9y = 0

multiply the second equation by -1

6x + 9y = 0

add them together

-8x - 9y = 0

6x + 9y = 0

-2x = 0

x = 0

substitute into the second equation

-8 * 0 - 9y = 0

-9y = 0

y = 0

Answer:

D. 13.79

Step-by-step explanation:

74.6-50.25-10.56=13.79

13.79 seconds Jodie left to match the record.

Jodie wanted to match Mandy's obstacle course record of 74.6 seconds. She had already spent fifty and one fourth seconds on wall climbing and 10.56 seconds on the ropes. We have to find the time she left to match the record

Two expressions with equal sign is called as equation.

The time for climbing wall is fifty and one fourth seconds=50.25 seconds

The time on ropes is 10.56 seconds

The total time she spent is 50.25+10.56=60.81

Left time = Record Time-Spent time

=74.6-60.81=13.79

Therefore 13.79 seconds she have left to match the record

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