can anyone help with this one?! will mark brainliest!

True statement is number C.

The method of sampling where a portion of population are given priority over the rest of the population is called biased sample.

In the unbiased sampling method almost, each population is valued, and they are given chance to be selected in the data list.

flawed sampling means the method of sampling is inappropriate such as survey works that taken in non-random way. As example, researchers start to ask people walking in the street.

The survey was taken at a playground on 20 families.

the survey estimated that mean number of children per household in the community was 2.4.

The main purpose of the survey was to determine the mean number of children per household in the community.

but the survey study was held at the playground and the sample size is too small.

The above data could not give the true estimation.

So, the sampling method is flawed and may produce a biased estimate of the mean number of children per household in the community.

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Answer:

x = 46, y = 67

Step-by-step explanation:

x = ∠ AEC = 46 ( alternate angles )

Since Δ ACE is isosceles then the base angles are congruent, then

y = [tex]\frac{180-46}{2}[/tex] = [tex]\frac{134}{2}[/tex] = 67

Answer:

x=46° and y=67°

Step-by-step explanation:

triangle ACE is isosceles, meaning <A=<B=y

any triangle is add up to 180. <A+<B+<C=180

y+y+46=180

2y=180-46

2y=134

divide both sides by 2

y=134/2

y=67°

for angle x°

since AB is parallel to CD,hence

<AEC=<ECD

x=46°

Answer:

the answer would be C

Step-by-step explanation:

Answer:

Step-by-step explanation:

1). By applying cosine rule in the given triangle,

   cos(x°) = [tex]\frac{\text{Adjacent side}}{\text{Hypotenuse}}[/tex]

   cos(x°) = [tex]\frac{6}{8}[/tex]

   x = [tex]\text{cos}^{-1}(\frac{3}{4} )[/tex]

   x = 41.41°

2). By applying cosine rule in the given triangle,

   cos(x°) = [tex]\frac{\text{Adjacent side}}{\text{Hypotenuse}}[/tex]

   cos(x°) = [tex]\frac{4}{5}[/tex]

   x = [tex]\text{cos}^{-1}(0.8)[/tex]

   x = 36.87°

3). By applying cosine rule in the given triangle,

   cos(x°) = [tex]\frac{\text{Adjacent side}}{\text{Hypotenuse}}[/tex]

   cos(x°) = [tex]\frac{51}{85}[/tex]

   x = [tex]\text{cos}^{-1}(0.6)[/tex]

   x = 53.13°

Answer:

20

Step-by-step explanation:

c² = a² + b²

25² = 15² + b²

625 = 225 + b²

b² = 625 - 225

= √400

= 20

Answer:

[tex]1\ c = 8\ fl\ oz[/tex]

[tex]\frac{1}{8}\ c = 1\ fl\ oz[/tex]

[tex]\frac{1}{4}\ c = 2\ fl\ oz[/tex]

Step-by-step explanation:

The options are not properly formatted;

So, I will solve the question using general notations

Required

Conversion factors of cups and fluid ounces

Let

[tex]c = cup[/tex]

[tex]fl\ oz = fluid\ ounces[/tex]

In standard conversion

[tex]1\ c = 8\ fl\ oz[/tex]

Divide both sides by 8

[tex]\frac{1\ c}{8} = \frac{8\ fl\ oz}{8}[/tex]

[tex]\frac{1}{8}\ c = 1\ fl\ oz[/tex]

Multiply both sides by 2

[tex]2 * \frac{1}{8}\ c = 1\ fl\ oz * 2[/tex]

[tex]\frac{1}{4}\ c = 2\ fl\ oz[/tex]

The height of Dange who can jump 27.5% of her height is 10.4 inches.

A percentage is a value per hundredth. Percentages can be converted into decimals and fractions by dividing the percentage value by a hundred.

Given, Dange measures and finds that she can do a vertical jump that is 27.5 % of her height f and the distance of the jump is 13.2 inches.

Therefore. (100 + 27.5)% = 127.5% of f is 13.2 inches, This can be numerically expressed as,

(127.5/100)×f = 13.2.

1.275f = 13.2.

f = 13.2/1.27.

f = 10.4 feet.

So, The height of Dange is 10.4 inches.

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Answer:

9.2+8.4+6.2

Step-by-step explanation:

hope that helps

Answer:

f(x) , r(x), t(x)

Step-by-step explanation:

Answer:

49a + 28

Step-by-step explanation:

Answer:

49a+28

Step-by-step explanation:

49a+26+11–3–6

49a+26+11-9

49a+26+2

49a+28

Brainliest!!!

The median of the list of numbers is 4

The numbers are given as:

3, 5, 2, 10, 6, 3, 7, 3

Sort the numbers in ascending order

2, 3, 3, 3, 5, 6, 7, 10

The median is the middle number.

The middle numbers in the above data are 3 and 5

So, the median is:

Median =(3 + 5)/2

Evaluate

Median =4

Hence, the median of the list of numbers is 4

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Answer:

Area:80mi^2

Perimeter:40mi

Step-by-step explanation:

Answer:

[tex]64 m^{2}[/tex]

Step-by-step explanation:

10 x 4 = 40

8 x 3 = 24

40 + 24 = 64

Mark as brainllest

Answer:

Step-by-step explanation: a=4, b=2.

Answer:

b = 39

Step-by-step explanation:

[tex]a-6=b[/tex]

if a = 45:

[tex]45-6=b\\39=b[/tex]

Hope this helps

Answer:

yesssssss!!!!!!!!!!!

Answer: Is the question to find unit price, if it is, the answer is $16.77. Divide 200/12 to get the unit price. Hope this helps and good luck to having a bright future ☀️

Step-by-step explanation:

Answer:

$87.82

Step-by-step explanation:

You do $74 divided by .18 which gets you $13.82. Then you add $74 and $13.82 which gives you the total, $87.82

Answer:

54 apples

Step-by-step explanation:

i know that he most likely didnt eat the same amount of apples per year but, if you divide the number of apples he ate overall by his age you get 54 apples.

According to the solving the team average is g/17 and Chris sold (g/8) - 17  games.

The term "Average" refers to a value that should be used to describe the sample as a whole. The average is determined by dividing the total number of values in a set by the total number of values. also known as the arithmetic mean.

Average A collection of integers are added, their count is divided, and the sum is used to determine the arithmetic mean.

average game sold = g/8

since Chris sold 17 games less than average

hence, Chris sold   games

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By considering the reflection, the coordinates of the reflected square D'E'F'G' are:

D'(0,1) , E'(0,6), F'(5,6) and G'(5,1)

A square is a two-dimensional geometric shape that has four equal sides and four right angles. It is a type of rectangle, but with all sides equal. The opposite sides of a square are parallel and of equal length. A square can be defined by its side length or by the coordinates of its vertices.

Reflection is a type of transformation in geometry in which a shape is flipped over a given line, called the line of reflection. The image that is created is a mirror image of the original shape. The line of reflection can be a horizontal line, a vertical line, or any line that is not parallel to the axes. Reflecting a shape over a line involves taking the coordinates of each point of the shape and applying a specific rule (such as multiplying or adding a constant) to the x or y coordinate, depending on the line of reflection. This rule is often simple and easy to apply, such as reflecting over x = 1. The reflected shape will be in the same plane as the original shape but with a different orientation or position.

When a square is reflected in the line x=1, each of the points on the square will have their x-coordinate replaced by 1 subtracted from their original x-coordinate.

The coordinates of the reflected square D'E'F'G' can be found by applying this rule to the original coordinates of square DEFG:

D(1,1) => D'(1-1,1) => D'(0,1)

E(1,6) => E'(1-1,6) => E'(0,6)

F(6,6) => F'(6-1,6) => F'(5,6)

G(6,1) => G'(6-1,1) => G'(5,1)

So the coordinates of the reflected square D'E'F'G' are:

D'(0,1) , E'(0,6), F'(5,6) and G'(5,1)

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Answer:

5.(x+7)(4x2+7)

6.(b−3x)(3x2−1)

Answer:

d=90°

e=81°

f=99°

Step-by-step explanation:

To find f

180-81

=99

Answer:

d = 90°

e = 81°

f = 99°

Step-by-step explanation:

Have a nice day!

Answer:

D.27

Step-by-step explanation:

I took a picture of my work doing a explanation.

(sorry for the messy hand writing)

Answer:

[tex]y-intercept=(0,26)[/tex]

[tex]x-intercept=(-13/2,0)[/tex]

Step-by-step explanation:

Given

[tex]y-6=4(x+5)[/tex]

→ [tex]y=4(x+5)+6[/tex]

→ [tex]y=4x+20+6[/tex]

→ [tex]y=4x+26[/tex]

To find the y-intercept we will plug in x=0

Now to find the x-intercept we will plug in y=0

[tex]0=4x+26\\[/tex]

→ [tex]4x=-26[/tex]   → [tex]x=\frac{-26}{4}[/tex]

[tex]-------------[/tex]

hope it helps...

have a great day!!!

Answer:

Least to greatest.

Persian, Maine Coon, and American Shorthair

Probability that the calendar turned to month of May or June is 1/6.

Probability is simply the possibility of getting an event. Or in other words, we are predicting the chance of getting an event.

The value of probability will be always in the range from 0 to 1.

Total number of months = 12

Suppose that a calendar is turned.

Probability that the calendar turned to month of May = 1/12

Probability that the calendar turned to month of June = 1/12

Probability that the calendar turned to month of May or June = 1/12 + 1/12

                                                                                                      = 2/12

                                                                                                      = 1/6

Hence the probability that the calendar turned to month of May or June is 1/6.

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The solution to this system of linear equations is x = 3, y = 2.

2x - 3y = 3

2x = 3 + 3y

2x = 3y + 3

x = (3y + 3) / 2

x = 3/2 + 3/2y

x = 3, y = 2

This system of linear equations features two unknown variables, x and y. The equation 2x - 3y = 3 can be rearranged into 2x = 3y + 3. This equation can then be solved for x by dividing both sides by 2, resulting in x = 3y + 3/2. Since 3y + 3/2 must equal 3, this means that y must equal 2. Substituting 2 for y in the original equation yields 2x = 3 + 3(2), or 2x = 9. Dividing both sides by 2 yields x = 9/2, or x = 3. Therefore, the solution to this system of linear equations is x = 3 and y = 2.

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The solution to the system of linear equations 2x + 3y = 3 is x = 1 and y = -1/3.

1. Rewrite the equation in standard form is

2x + 3y = 3

2. Subtract 2x from both sides of the equation:

3y = 3 - 2x

3. Divide both sides by 3:

y = (3 - 2x)/3

4. Solve for x by substituting y in the original equation:

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

5. Simplify and solve for x:

2x + 3 - 2x = 3

x = 1

6. Substitute x into the equation y = (3 - 2x)/3

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

y = -1/3

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Logarithms are used for a variety of purposes in mathematics, science, engineering, and other fields. Some common uses of logarithms are mentioned below:

A function in mathematics from a set X to a set Y allocates precisely one element of Y to each element of X. The sets X and Y are collectively referred to as the function's domain and codomain, respectively.

The mathematical expression f(x)=exp or ex denotes the exponential function. The word, unless specifically stated differently, normally refers to the positive-valued function of a real variable, however it can be extended to the complex numbers or adapted to other mathematical objects like matrices or Lie algebras.

They are used for:

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