stratified random sampling involves: group of answer choices dividing the population into overlapping groups taking a random sampling of a percentage of the pre-chosen groups (usually 10% of total groups) choosing non-overlapping clusters (i.e. streets of a city) and collecting data from all members of the selected cluster none of the above

A hypothesis is an educated guess or tentative explanation for a phenomenon that can be tested through scientific investigation. It is a prediction or statement that proposes a relationship between two or more variables and can be tested through empirical evidence.

A hypothesis is an essential component of the scientific method as it provides a framework for designing experiments, collecting data, and analyzing results. The aim of testing a hypothesis is to either accept or reject it based on the available evidence. In this way, hypotheses help advance scientific knowledge and understanding.

A testable statement about the relationship between variables is called a

hypothesis .

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The rhombus-shaped cookie cutter has diagonals of 10 centimeters and 6.7 centimeters. We can use the formula for the area of a rhombus, which is A = (d1 * d2)/2, where d1 and d2 are the lengths of the diagonals.

So, the area of the cookie cutter is A = (10 * 6.7)/2 = 33.5 square centimeters.  Since Alejandro wants to ice the tops of 16 cookies, we need to find the total area of the tops of the cookies. If we assume that each cookie is a rhombus with the same shape as the cookie cutter, then each cookie has an area of (10 * 6.7)/2 = 33.5/2 = 16.75 square centimeters.  Therefore, the total area that needs to be covered in icing is 16 * 16.75 = 268 square centimeters. Rounded to the nearest square centimeter, the total area is 268 square centimeters.

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Answer: An angle that measures 180° would be a straight angle.

Step-by-step explanation:

This question is asking to identify an angle that measures 180°. To find if this angle is acute, obtuse, right, or straight is to measure them each.

Acute Angle - Acute angles are angles that measures less than 90° degrees

Obtuse Angle - Obtuse angles are any angles that greater than 90° with the exception of an 180° angle

Right Angle - Right angles are angles that are exactly equal to 90°

Straight Angle -  Straight angles are defined angles that are exactly 180 ° degrees.

Since a straight angle is 180° degrees. Therefore, this angle would be defined as a straight angle. Hope this helps!

Answer:

The period of this graph is 7.

If there had been 2 more students in the club, each would have had to contribute 50 cents less, there were 18 students in the math club.

Let's assume that initially, there were 'x' students in the math club. Each student contributed an equal amount to purchase a $72 calculator, so each student's contribution was 72/x dollars.

According to the given information, if there had been 2 more students in the club, each student would have had to contribute 50 cents less. This means that the new contribution per student would be (72/x) - 0.50 dollars.

We can set up the equation:

72/x - 0.50 = 72/(x+2)

To simplify the equation, we can multiply both sides by x(x+2) to eliminate the denominators:

72(x+2) - 0.50x(x+2) = 72x

Expanding and rearranging terms:

72x + 144 - 0.50x² - x = 72x

Rearranging again:

0.50x² - x - 144 = 0

Now we can solve this quadratic equation. By factoring or using the quadratic formula, we find that x = 18 or x = -16. However, since the number of students cannot be negative, the solution is x = 18.

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Answer. The correct option is (E). 9.5 and 14.5

Explanation for step 1This is because 95% of the mean weights from samples of size 100 cats from this population will fall between 9.5 and 14.5 pounds. The other answers are incorrect because they do not fall within the range of 95% of the mean weights from samples of size 100 cats from this population

About 95% of the mean weights from samples of size 100 cats from this population would fall between approximately 11.51 pounds and 12.49 pounds.

To determine the range within which 95% of the mean weights from samples of size 100 cats would fall, we can use the concept of the confidence interval.

Given:

Population mean weight (μ) = 12 pounds

Population standard deviation (σ) = 2.5 pounds

Sample size (n) = 100 cats

Since the population distribution is assumed to be approximately normal, the sampling distribution of sample means will also be approximately normal. To calculate the range, we can use the formula for the confidence interval:

Confidence Interval = sample mean ± (z * standard error)

The standard error can be calculated using the formula:

Standard Error = σ / √n

Using a 95% confidence level, the corresponding z-value is approximately 1.96 (obtained from standard normal distribution table).

Plugging in the values:

Standard Error = 2.5 / √100 = 0.25

Confidence Interval = 12 ± (1.96 * 0.25)

Calculating the values:

Lower limit = 12 - (1.96 * 0.25) ≈ 11.51 pounds

Upper limit = 12 + (1.96 * 0.25) ≈ 12.49 pounds

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Answer:

y = 2 sin (2x)

Step-by-step explanation:

the general form of a sine function is:

y = A sin (Bx + C) + D

where:

- A is the amplitude

- B is related to the period by the formula: period = 2pi/B

- C is the phase shift

- D is the vertical shift

Since you want an amplitude of 2, you can set A = 2. Since you want a period of pi, you can set B = 2pi/pi = 2.

y = 2 sin (2x)

Deb has 75 different combinations to choose from for her workout.

Deb has 25 different combinations to choose from. This is because she has 5 activities she can do and 5 different locations she can do them in, which gives her a total of 25 possible combinations. Once she's done with her activity, she has 3 different exercises she can do, so she has a total of 75 (25 x 3) different combinations to choose from for her workout.
The total number of combinations Deb has for her workout, we need to multiply the number of choices she has for each part of her workout.
1. Activity: Deb can choose from 5 activities (hike, walk, skate, bike, or run).
2. Location: Deb can choose from 5 locations (over the hills, around the lake, along the river, into the valley, or up the mountain).
3. Exercise: Deb can choose from 3 exercises (jumping jacks, sit-ups, or pull-ups).
Now, we'll multiply the number of choices for each part of the workout:
Total combinations = (Activities) x (Locations) x (Exercises) = (5) x (5) x (3) = 75
Deb has 75 different combinations to choose from for her workout.

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The missing values of x in the triangle are 66.8, 16.6, 10, 51.8

For A

Cos(x) = Adjacent / hypotenuse

Cos(58) = x/126

x = Cos(58) × 126

x = 66.8

For B :

Sin(x) = opposite/ hypotenuse

sin(x ) = 8/28

sin(x) = 0.2857

x = 16.6°

For C:

Tan(x) = opposite/ adjacent

Tan(x) = 6/34

Tan(x) = 0.176

x = 10°

For D:

sin(x) = opposite/ hypotenus

sin(18) = 16/x

x = 16/sin(18)

x = 51.8

Therefore, the missing values of x are 66.8, 16.6, 10, 51.8

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The probability that a student picked at random would pick a room filled with cupcakes or computers using probability concept is 0.26.

Probability is the ratio of required outcome to the total possible outcomes.

Mathematically,

Probability = Required outcome / Total possible outcomes

Room filled with computers or cupcakes = Number of rooms filled with computers + Number of rooms filled with cupcakes = 12 + 3 = 15

Total number of rooms = 12+3+12+3+29 = 59

P(computers or cupcakes) = 15/59 = 0.259

Therefore, the probability that a student picked at random would pick a room filled with cupcakes or computers is 0.26.

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Answer:

Condition:

If a series converges, then the terms of the series approach 0.

Converse:

If the terms of a series approach 0, then the series converges.

The domain of the function y = (2x - 3) / ( |x-1| + 2) is all real numbers except x = 1 and x = 3.

The expression inside the absolute value bars, |x-1|, can be either positive or negative, depending on the value of x. Thus, we have two cases to consider:

Case 1: x-1 ≥ 0, or x ≥ 1

In this case, |x-1| = x-1, and the function becomes:

y = (2x - 3) / (x-1 + 2) = (2x - 3) / (x+1)

Case 2: x-1 < 0, or x < 1

In this case, |x-1| = -(x-1) = 1-x, and the function becomes:

y = (2x - 3) / (1-x + 2) = (2x - 3) / (3-x)

Therefore, the domain of the function y = (2x - 3) / ( |x-1| + 2) is all real numbers except x = 1 and x = 3.

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Answer:

Step-by-step explanation:

11 x 56

= 5  5+6   6

         11

  =   616

The value of angle m∠FCG is 27.5.

x = 25

x = 35

We have,

1.

GCH and ECD are alternate angles.

This means,

GCH = 125 = ECD

And,

ECG and DCH are alternate angles.

This means,

ECG = DCH = x

Now,

GCH + ECD + ECG + DCH = 360

125 + 125 + x + x = 360

250 +2x = 360

2x = 360 - 250

2x = 110

x = 55

Now,

ECG = ECF + FCG

55 = ECF + FCG

ECF and FCG are equal.

So,

m∠FCG = 55/2 = 27.5

2.

The straight angles are formed by (5x + 20) and (2x - 5).

So,

5x + 10 + 2x - 5 = 180

7x + 5 = 180

7x = 180 - 5

7x = 175

x = 25

3.

2x + 43 and 2x - 3 are on the same side of the parallel lines.

So,

2x + 43 + 2x - 3 = 180

4x + 40 = 180

4x = 180 - 40

4x = 140

x = 35

Thus,

The value of angle m∠FCG is 27.5.

x = 25

x = 35

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Answer:

512.02 cm²

Step-by-step explanation:

The big rectangle in the middle from top to bottom measures

14 cm by (13 cm + 5 cm + 13.93 cm) = 31.93 cm

The two triangles on the sides add up to a rectangle measuring 13 cm by 5 cm.

surface area = 14 cm × 31.93 cm + 13 cm × 5 cm

surface area = 512.02 cm²

These transformations result in the graph of g(x), which is a horizontally reflected, horizontally compressed, horizontally shifted, and vertically shifted version of the parent function f(x) = log(x).

To achieve the graph of g(x) = log("-2x" - 4) - 1 from the parent function f(x) = log(x), several transformations are applied.

First, a horizontal reflection occurs due to the negative coefficient in front of the x term, "-2x". This reflection flips the graph of f(x) across the y-axis.

Next, a horizontal compression takes place due to the coefficient of 2 in "-2x". This compression squeezes the graph horizontally, making it narrower compared to the parent function.

Then, a horizontal shift to the right occurs by 4 units due to the constant term -4. This shift moves the graph horizontally, shifting it to the right.

Lastly, a vertical shift downward by 1 unit takes place due to the constant term -1. This shift moves the entire graph vertically, shifting it downward.

These transformations result in the graph of g(x), which is a horizontally reflected, horizontally compressed, horizontally shifted, and vertically shifted version of the parent function f(x) = log(x).

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Answer:

SA = 152 ft²

Step-by-step explanation:

First, we can solve for the area of the base (the side closest to us):

A(triangle) = (1/2) · base · height

A(base) = (1/2) · 6 · 4

A(base) = 3 · 4

A(base) = 12

Then, we can solve for the area of the left and right sides:

A(rect) = length · width

A(side) = 8 · 5

A(side) = 40

Next, we can solve for the area of the bottom side:

A(rect) = length · width

A(bottom) = 8 · 6

A(bottom) = 48

Finally, we can solve for the surface area of the tent by adding all of the sides' areas together:

SA = [ 2 · A(base) ] + [ 2 · A(side) ] + A(bottom)

SA = [2 · 12] + [2 · 40] + 48

SA = 24 + 80 + 48

SA = 152 ft²

The rule that represents the dilation of the original triangle with a scale factor of 12 centered at the origin is (x, y) → (12x, 12y).

The coordinates of the vertices of the original equilateral triangle can be found by dividing the perimeter by the length of each side, which is 4/3. Thus, each vertex is located at a distance of 4/3 units from the adjacent vertices.

Let's assume that the original triangle is centered at the origin (0,0) and its vertices are (2/3, 0), (-1/3, √3/3), and (-1/3, -√3/3).

Multiply the x and y coordinates of each vertex by the scale factor of 12.

Thus, the vertices of the dilated triangle would be:

(2/3) × 12, 0 × 12 = (8, 0)

(-1/3) × 12, √3/3 × 12 = (-4, 2√3)

(-1/3) × 12, -√3/3 × 12 = (-4, -2√3)

So, the rule that represents the dilation of the original triangle with a scale factor of 12 centered at the origin is:

(x, y) → (12x, 12y)

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Some alkenes have geometric cis-trans isomers because of the presence of a double bond between two carbon atoms. In a carbon-carbon double bond, the carbon atoms are connected to two different groups of atoms, which can be oriented differently in space. In the cis configuration, the two substituent groups on each carbon atom are on the same side of the double bond, while in the trans configuration, the two substituent groups on each carbon atom are on opposite sides of the double bond.

The cis-trans isomerism arises due to the restricted rotation around the carbon-carbon double bond. In the case of cis isomers, the substituent groups are too bulky to rotate around the double bond, and they remain on the same side of the double bond. In contrast, in the trans isomers, the substituent groups are oriented on opposite sides of the double bond, which allows them to rotate freely around the bond.

The presence of cis-trans isomers has important consequences for the physical and chemical properties of alkenes, including their reactivity, solubility, and melting points. The two isomers can have different properties and can exhibit different biological activities, making them important targets for drug design and synthesis.

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3 is the slope of the line between the pairs of points in each of the tables. Third table represents a linear function.

In mathematics, a line's slope, also known as its gradient, is a numerical representation of the line's steepness and direction. The word m is frequently used to represent slope; the reason for this is unclear, but it can be found in O'Brien's (1844)[2] and Todhunter's (1888) versions of the equation for a straight line, respectively, where it is written to be "y = mx + b" or "y = mx + c". The percentage of the "vertical difference" with the "horizontal change" among (any) two unique points on a line is used to compute slope. The ratio may occasionally be written as a quotient.

1)slope = y₂-y₁/x₂-x₁

         = -24/-8

         =3

2)slope = y₂-y₁/x₂-x₁

         = 13/3

         =3

Third table represents a linear function.

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Your question is incomplete but most probably your full question was,    

According to the information, the most suitable prism for cereals would be #1 because it has more comfortable dimensions for buyers who would need fewer materials.

To find the area of the prisms we must find the area of each of their faces as shown below:

option 1

5 * 4 = 20

20 * 2 = 40

6 * 5 = 30

30 * 2 = 60

6*4=24

24 * 2 = 48

60 + 40 + 48 = 148

option 2

option 3

On the other hand, if we want to find the volume of the boxes we must multiply all their sides as shown below:

According to the above, we can infer that the three packages have the same volume. However, the most appropriate for this product would be #1 because it has more comfortable dimensions for buyers because they need fewer materials and its value would be lower.

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The given numbers in order from least to greatest is 0.44, 0.442 and 0.445.

The given numbers are 0.442, 44.5% and 11/25.

Here, 44.5% = 44.5/100

= 0.445

11/25=0.44

Ascending order means to arrange numbers in increasing order, that is, from smallest to largest.

Now, 0.44<0.442<0.445

Therefore, the given numbers in order from least to greatest is 0.44, 0.442 and 0.445.

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The number of ways is 1 billion.

We are asked to determine the possible number of ways of the social security number that is 9 digits if the numbers can be repeated.

In this case, using fundamental counting, there are 10 possible numbers in each digit that is from zero to nine.

Thus, the number of ways is 10*10*10*10*10*10*10*10*10 equal to 1 billion ways.

Hence the number of ways is 1 billion.

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1 gram is equal to 0.001 kilogram.
To convert grams to kilograms, divide grams by 1000.

Answer:

[tex](rs)(x)=5x^{5[/tex]

[tex](r+s)(x)=x^{2} (5+x)[/tex]

[tex](r-s)(-2)=16[/tex]

Step-by-step explanation:

(rs)(x)= is going to be multiplying the two functions.

[tex](rs)(x)=(5x^{2})(x^{3})[/tex]

Add the exponents and get rid of the parentheses.

[tex](rs)(x)=5x^{5[/tex]

(r+s)(x)= is going to be adding the two functions.

[tex](r+s)(x)=5x^{2} +x^{3}[/tex]

Factor out any common factors.

[tex](r+s)(x)=x^{2} (5+x)[/tex]

(r-s)(-2)= is going to be subtracting the functions from each other while evaluating -2 into the problem.

[tex](r-s)(-2)=5(-2)^{2} -(-2)^{2}[/tex]

Solve.

[tex](r-s)(-2)=5(4) -4[/tex]

[tex](r-s)(-2)=20 -4[/tex]

[tex](r-s)(-2)=16[/tex]

If α ,β are the roots of the equation then  (1 - α)(1 - β) - 50 is equal to -26.

Given that the equation

[1 25]

[0 1 2 -1 1 2] 5 [1 -1 2 0] 10 [0 1 2 -1 1 2] 5 [x^2 - 5x + 20x + 2] = [40]

is satisfied by α and β as the roots, we can rewrite the equation as follows:

[1 25]

[0 1 2 -1 1 2] 5 [1 -1 2 0] 10 [0 1 2 -1 1 2] 5 [(x - α)(x - β)] = [40]

Expanding and simplifying the equation, we get:

(x - α)(x - β) - 26 = 0

Substituting x = 1, we have:

(1 - α)(1 - β) - 26 = (1 - α)(1 - β) - 50 + 24 = -26.

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The volume of the cylinder is given as 3053.63 cubic units

V=πr²h

Where the V = volume

r = radius

h = height

We have to apply the values to the formula

In this case, the radius (r) is 9, and the height (h) is 12.

Now, we can plug the radius and height into the volume formula:

Volume = π * (9)² * 12 ≈ 3.1416 * 81 * 12

3053.63 cubic units

The volume of the cylinder is given as 3053.63 cubic units

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The length and width of the new rectangle would be 3 inches and 4 inches, respectively.

Let's consider the original rectangle. We know that its area is 10 square inches and its perimeter is 14 inches. Let's denote the length of the original rectangle as L and the width as W.

The area of a rectangle is given by A = L * W, and the perimeter is given by P = 2 * (L + W). We have two equations based on the given information:

Equation 1: L * W = 10

Equation 2: 2 * (L + W) = 14

From Equation 2, we can simplify it to L + W = 7 and rewrite it as W = 7 - L. Substituting this value into Equation 1, we get L * (7 - L) = 10.

Expanding and rearranging the equation, we have L^2 - 7L + 10 = 0. Factoring the equation, we find (L - 5)(L - 2) = 0.

Therefore, L = 5 or L = 2. If L = 5, then W = 7 - L = 2. If L = 2, then W = 7 - L = 5.

Thus, the two possible dimensions for the new rectangle with the same perimeter are 2 inches by 5 inches or 5 inches by 2 inches.

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