Which of the following characteristics would best describe a sample that enables you to draw accurate inferences from the sample? A. The sample is biased, but not random or representative. B. The sample is random, but not biased or representative. C. The sample is random and representative, but not biased. D. The sample is random, representative, and biased.​

Answer: 86.5

Step-by-step explanation:  

(83.5 + x )/2= 85

2(85)= 83.5 + x

170-83.5 =x

x= 86.5

The radian measure of an angle is directly proportional to the length of the arc intercepted by that angle on the unit circle.

Proportional is a mathematical concept that describes the relationship between two or more values that have a constant ratio. It is commonly used to describe the relationship between two or more variables, such as the size of an object in relation to another or the amount of a certain item in relation to the total amount. In proportionality, the ratio of the amounts remains consistent, no matter what the size of the values.

This means that as the angle increases, so does the length of the arc. This is because the length of an arc is determined by the angle measure of the central angle created by the arc, and the radian measure of an angle is the ratio of the arc length to the radius of the circle. Therefore, if the angle measure increases, so does the arc length.

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Answer:

53.06 ft^2

Step-by-step explanation:

Calculate semi perimeter and use Scalence triangle area formula

Semi perimeter: a+b+c/2

Area of Scalence triangle: √s(s-a)(s-b)(s-c). {where s=semi perimeter}

Answer: I don't know

Answer: The theoretical probability of selecting a meat option is 7/9.

Step-by-step explanation:

5 beef + 3 pork + 6 chicken + 4 veggie = 18 options total

meat options = 18 (total) - 4 veggie = 14 meat options

14/18 = 7/9

Answer:

the dimensions of the corral that minimize the cost of the fencing are approximately 17.91 meters by 6.54 meters.

Step-by-step explanation:

Let the length of the corral be x, and the width be y. We know that the area of the corral is 117, so:

xy = 117

We also know that the corral is divided by a fence into two sections. Let the length of one section be L, and the width be y. Then, the length of the other section will be x - L, and the width will still be y. The total fencing cost will be:

10(2x + 2y) + 6(L + 2y)

Simplifying this expression, we get:

20x + 32y + 6L

Using the area equation, we can rewrite this as:

20x + 32(117/x) + 6L

To minimize the cost, we need to take the derivative of this expression with respect to L, and set it equal to zero:

d/dL [20x + 32(117/x) + 6L] = 6 = 0

Solving for L, we get:

L = x/2

Therefore, the two sections of the corral will have equal length. Substituting this value of L into the expression for total fencing cost, we get:

20x + 32y + 3x

Simplifying this, we get:

23x + 32y

Using the area equation to substitute for y, we get:

23x + 32(117/x)

Taking the derivative of this expression with respect to x, and setting it equal to zero, we get:

23 - 3744/x^2 = 0

Solving for x, we get:

x = sqrt(3744/23) ≈ 17.91

Substituting this value of x into the area equation, we get:

y = 117/x ≈ 6.54

Therefore, the dimensions of the corral that minimize the cost of the fencing are approximately 17.91 meters by 6.54 meters.

The sοlutiοn οf the given prοblem οf rectangle cοmes οut tο be E is the answer.

In the Euclidean plane, a rectangle is a square with fοur perpendicular edges. It is alsο referred tο as an equiangular parallelοgram οr a seemingly equal-sided rectangle. The trapezοid can alsο have a straight edge. Fοur οf the sides οf a square are equal in length. Rectangular quadrilaterals have fοur equal sides and fοur 90° edges. Its name is sοmetimes "rectangular trapezοid" as a cοnsequence.

Here,

Due tο the shared suits οf the adjacent sectiοns.

Therefοre,

Case 1: Triangles and circles must be arranged in a series fοr hοrizοntal fitting.

Therefοre,

A, C, and D are excellent οptiοns. Sο they can't be the sοlutiοns.

Again,

Case 2.

Tο accοmmοdate vertically,

Rectangle and Triangle need tο be in the same cοlumn. And B is where that is happening.

sο that,

The οnly exceptiοn is:

"E" is the answer.

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Complete question:

1. The equilibrium quantity = 60, the equilibrium price = 300

2. If the government imposes the tax of 24, the quantity supplies would fall to 56, and the price would rise to 308

At equilibrium we have P = Q

that is price is equal to quantity. Such that we would have:

420-2q = 60+ 4q

take the like terms

420 - 60 = 4q + 2q

360 = 6q

q = 360 / 6

q = 60

The equilibrium quantity = 60 then equilibrium price =

420-2q

420 - 2 * 60

300

The equilibrium price is 300

2. If the government imposes 24 dollar per unit

420-2q = 60+ 4q + 24

420 - 2q = 84 + 4q

420 - 84 = 4q + 2q

336 = 6q

56 = q

420-2 * 56

p = 308

If the government imposes the tax of 24, the quantity supplies would fall to 56, and the price would rise to 308

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Answer:

Luke has saved $21

Step-by-step explanation:

Answer:

According to the problem, Ramona has saved 3 times as much money as Luke, so:

Ramona's savings = 3x

Luke's savings = x

The problem tells us that Ramona has saved $63, so we can write an equation:

3x = 63

To solve for x, we can divide both sides by 3:

x = 21

Therefore, Luke has saved $21.

Yes, both triangles are similar.

Similar triangles are two triangles that have the same shape, but may differ in size. In other words, their corresponding angles are congruent and their corresponding sides are proportional. This means that if you were to scale one triangle up or down, it would still maintain the same shape as the other triangle.

In ΔABC,

AC² = 36² +15²

AC² = 1521 = 39²

AC = 39

In ΔXYZ,

XY² = 24² +10²

XY² = 676 = 26²

XY = 26

If the ratio of the sides of both triangles are similar So we can say that the both triangles are similar.

AB/XZ = BC/YZ = AC/XY

15/10 = 36/24 = 39/26

3/2 = 3/2 = 3/2

Here we can see that the ratio of the sides of both triangles are similar So we can say that the both triangles are similar.

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The solution to the system of equations on the graph is (0, 0)

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

y = -2x and y = 4/3x represented on a graph

On the graph, we have two lines that intersect at a point

Using the above as a guide, we have the following:

The point of intersection of lines in a graph is the solution to the graph

In this case, they intersect at (0, 0)

So, the solution is (0. 0)

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3.1 best represents the ratio of the length of segment A to segment B.

What is ratio?

By comparing two amounts of the same unit and finding the ratio, one can determine how much of one quantity is included in the other.

We are given that Jillian measures two line segments.

The length of Segment A is measured as 12.4 centimeters and the length of Segment B is measured as 4 centimeters.

So, on comparing both the lengths, we get

⇒12.4 : 4

⇒124 : 40

⇒3.1

Hence, 3.1 best represents the ratio of the length of segment A to segment B.

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The vertex form is:y(x-3)2-4

:) Good luck

Use the method of completing the square to express in vertex form.

Given

[tex]y = x^2 - 6x + 11[/tex]

To complete the square

add/subtract ( half the coefficient of the x- term )² to x² - 6x

[tex]y = x^2 + 2(- 3)x + 9 - 9 + 11[/tex], then

[tex]y = (x - 3)^2 + 2[/tex]

The inverse of the function is y = (-3x + 50)/4.

The domain of the inverse function are {4, 5, 6, 10}.

The range of the inverse function are {5, 8, 9, 13}.

Mathematically, the point-slope form of a straight line can be calculated by using this mathematical expression:

y - y₁ = m(x - x₁) or y - y₁ = (y₂ - y₁)/(x₂ - x₁)(x - x₁)

Where:

At point (5, 10), an equation of the line f(x) can be calculated by using the point-slope form:

y - 10 = (6 - 10)/(8 - 5)(x - 5)

y - 10 = -4/3(x - 5)

y = -4x/3 + 20/3 + 10

y = -4x/3 + 50/3

y = (-4x + 50)/3

In order to determine the inverse of any function, you should swap both the input value (x-value) and output value (y-value) as follows;

x = (-4y + 50)/3

3x = -4y + 50

4y = -3x + 50

y = (-3x + 50)/4

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The longest flagopole that could fit in the box is 15.26 feet

The longest flagopole would have a length equal to the diagonal of the box.

It goes, lengthwise, from one vertex to the opposite vertex, and if the dimensions of the box are x, y, z, then the diagonal is:

d = √(x² + y² + z²)

In this case the box is 2ft by 2 ft by 15ft, then the diagonal is:

d = √(2² + 2² + 15²) = 15.26

That is the maximum length that can fit in the box, 15.26ft

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The area of the flower bed is 67.5 square feet.

The area of an object is the space that is enclosed by its boundaries. The number of unit squares on the surface of a closed figure determines its area.

The following formula provides the area of a triangle:

(1/2) * Base * Height = Area

Inputting the values provided yields:

Area equals (1/2) * 15 * 9

Dimensions: 67.5 square feet

The flower bed therefore has a 67.5 square foot space.

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The total resistance of three resistors in parallel s 2 Ohms. Option A

Resistance can be defined as the measure of the opposition to current flow in an electrical circuit.

Resistance is measured in Ohms, using the Greek symbol for omega (Ω).

It is also described as the hindrance to the flow of electrons in material.

It is important to note that for resistors in parallel, the total resistance is the reciprocal of the sum of reciprocals of the individual resistors.

This is represented as;

1/Rt = 1/R₁ + 1/R₂ + 1/R₃ ...

Where the variables , 'R' represented the resistors

Now, substitute the values, we have;

1/Rt = 1/4 + 1/8 + 1/8

Find the lowest common multiple

1/Rt = 2 + 1 + 1/8

1/Rt = 4/8

Take the reciprocal of the values

Rt = 8/4 = 2 Ohms

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Answer:6

Step-by-step explanation:

24------100%

x--------25%

100x=25*24

x=25*24/100=24/4=6

According to the question the option C is the correct answer that is 8 6/8 or 8 ¾ calculated by simplifying the fraction.

To represent a whole, every number of equal parts or fractions can be utilised. In standard English, fractions show how many units there are of a particular size. 8, 3/4. Fractions are part of a whole. In mathematics, numbers are stated as a ratio of a numerator to the denominator. They can all be expressed as simple fractions as integers. A fraction appears in a complex fraction's numerator or denominator. The numerators of true fractions are smaller than the denominators. A sum that is a fraction of a total is called a fraction. You can analyse something by dissecting it into smaller pieces. For instance, the number 12 is used to symbolise half of a whole number or object.

To add mixed numbers, we need to first convert any fractions to a common denominator. In this case, we can use 10 as the common denominator.

12 1/2 = 12 + 1/2 = 12 + 5/10 = 12 5/10

4 7/10 = 4 + 7/10

Now we can add the two mixed numbers:

12 5/10 + 4 7/10 = 16 12/10

Simplifying the fraction by dividing the numerator and denominator by their greatest common factor of 2, we get:

16 12/10 = 16 6/5

Therefore, the answer is C) 8 6/8 or 8 3/4.

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Let's use algebra to solve this problem.

Let x be one of the integers, and y be the other integer.

From the problem, we know that:

x = 4y + 17 (one integer is 17 more than 4 times the other)

xy = -15 (the product of the two integers is -15)

We can use substitution to solve for one of the variables. From the first equation, we can write:

y = (x - 17)/4

Substituting this expression for y into the second equation gives:

x(x - 17)/4 = -15

Multiplying both sides by 4 and expanding gives:

x^2 - 17x = -60

Rearranging gives:

x^2 - 17x + 60 = 0

This is a quadratic equation that can be factored as:

(x - 5)(x - 12) = 0

So the solutions are:

x = 5, y = (-12/4) = -3

x = 12, y = (-5/4) = -1.25

Since the problem states that the integers are both integers, the only valid solution is:

x = 5, y = -3

Therefore, the two integers are 5 and -3.

The functions are equal in option A, and aren't equal in B (try input x =1 and y = -1) and in C (try input x = 0 and y = 0).

The first one is:

(a). f: Z → Z, where f(x) = x^2.

g: Z → Z, where g(x) = |x|^2.

Yes, these functions are equal, this happens because both outcomes will always be positive, indifeterent of the absolute value part.

b)   f: Z × Z → Z, where f(x,y) = |x + y|.

g: Z × Z → Z, where g(x,y) = |x| +| y|.

These are different, if x = 1 and y = -1

f(1, - 1) = |1 - 1| = 0

g(1, -1) = |1| + |-1| = 2

c) B = {0, 1}

f: B × B → B × B, where f(x,y) = (1-y, 1-x)

g: B × B → B × B, where g(x,y) = (x,y)

This is clearly false, when x and y are 0 and 0 we have:

f(0, 0) = (1 - 0, 1 - 0) = (1, 1)

While g gives:

g(0, 0) = (0, 0)

These functions are different.

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Answer:

a)g(x) = 2f(x+1)

B) the point (-1, 3) would end up at (-4, 1) on the new graph.

Step-by-step explanation:

Answer:

The common difference in an arithmetic sequence is the constant difference between any two consecutive terms. In this sequence, the difference between each pair of consecutive terms is -2, so the common difference is -2.

Therefore, the answer is -2.

Therefore , the solution of the given problem of  unitary method comes out to be  x = (ab)c = a(bc) .

The job can be finished by multiplying the variable information obtained using this kind of nanosection alongside the results of the two people who used the unilateral approach. In essence, this mean that whenever a desired item happens, either the chosen entity is described or the tone of both commercial manufacturing is skipped. A varying fee of Inr ($1.01) might have been necessary for forty pens.

Here,

We must demonstrate that the following formula holds for any subsets A, B, and C of S in order to demonstrate that multiplication of subsets is associative:

=> (AB)C = A(BC)

where AB and BC stand for the sets created by increasing all of the elements in A by all of the elements in B, and vice versa.

We must demonstrate that every element on the left-hand side is also an element on the right-hand side and vice versa in order to demonstrate that (AB)C = A(BC).

Let x represent any one of the (A*B)C elements. If a, b, and c are all in A, then x can be expressed as

=> x = (ab)*c by definition. * being associated with S gives us:

=> x = (ab)c = a(bc)

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Answer: Second answer, (5,2)

Step-by-step explanation:

To reflect across the y axis, it would be: (x,y) -> (-x,y)

So, (-5,2) reflected across the y axis would be (5,2)

Hence, in answering the stated question, we may say that C: the two graphs triangles' slopes are the same.

Mathematicians use graphs to visually explain or chart events or variables. A graph point often indicates a connection between one thing and another. A graph, a non-linear data structure, is constituted of nodes (vertices) and edges. Glue the nodes, which are also called as vertices. This graph has E=1, 2, 1, 3, 2, 4, and (2.5) edges and V=1, 2, 3, 5. (3.5). (4.5). Graphical representations of exponential growth in analytical charts (bar charts, pie charts, line charts, and so on). a graph of a logarithmic triangle.

According to the image you gave, both the red and blue triangles have the same slope. As a result, the solution is:

C: the two triangles' slopes are the same.

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Answer:

B. (-3, 4)

Step-by-step explanation:

x=0-3=-3

y=0+4=4

(-3, 4)

Answer:

(-3, 4)

Second answer choice

Step-by-step explanation:

The coordinates of A(0, 0) are shifted to the left by 3 units. A shift to the left means the new x- coordinate = old x-coordinate -3 = 0 -3

A shift up means the new y-coordinate = old y-coordinate + 4 + 0 + 4 = 4

Therefore the new coordinates of A are (-3, 4)

Therefore, the unit price of the potatoes per ounce is $0.036875.

The unitary method is a mathematical technique that involves finding a single unit value in order to solve a problem involving multiple units. In other words, the unitary method involves finding the value of one unit of a given quantity, and then using that value to calculate the value of another quantity that is related to it.

Here,

First, we need to convert pounds to ounces since the unit price is usually measured in terms of ounces. There are 16 ounces in one pound, so:

5 pounds = 5 x 16

= 80 ounces

The bag of potatoes costs $2.95 for 80 ounces, so the unit price per ounce can be found by dividing the total cost by the number of ounces:

Unit price per ounce = Total cost / Number of ounces

Unit price per ounce = $2.95 / 80

= $0.036875

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Answer:

the probability that a randomly chosen refill will fit correctly is 0.9780 (rounded to three decimal places).

Step-by-step explanation:

We can use the standard normal distribution to solve this problem. We first need to calculate the z-scores for the given diameters.

a) To find the probability that a randomly chosen refill will be too large, we need to find the probability of getting a diameter greater than 0.520 mm.

z-score = (0.520 - 0.5) / 0.007 = 2.857

Using a standard normal table or calculator, we find that the probability of getting a z-score of 2.857 or greater is 0.0021.

Therefore, the probability that a randomly chosen refill will be too large is 0.0021 (rounded to three decimal places).

b) To find the probability that a randomly chosen refill will be too small, we need to find the probability of getting a diameter less than 0.485 mm.

z-score = (0.485 - 0.5) / 0.007 = -2.143

Using a standard normal table or calculator, we find that the probability of getting a z-score of -2.143 or less is 0.0164.

Therefore, the probability that a randomly chosen refill will be too small is 0.0164 (rounded to three decimal places).

c) To find the probability that a randomly chosen refill will fit correctly, we need to find the probability of getting a diameter between 0.485 mm and 0.520 mm.

First, we find the z-scores for each diameter:

z-score for 0.485 mm = (0.485 - 0.5) / 0.007 = -2.143

z-score for 0.520 mm = (0.520 - 0.5) / 0.007 = 2.857

Using a standard normal table or calculator, we find that the probability of getting a z-score between -2.143 and 2.857 is 0.9780.

Therefore, the probability that a randomly chosen refill will fit correctly is 0.9780 (rounded to three decimal places).

Answer:

36∘

Step-by-step explanation:

Decagon has ten sides and ten angles. All these sides and angles are equal to each other. Therefore, the measure of each exterior angle of a regular decagon is 36∘