Can you help me!!!!!!!!!!!!!!!!!!!!!!!!!

Answer:

B

Step-by-step explanation:

Answer:

I think its D.

Step-by-step explanation:

Im taking the quiz right now. But as far as i have seen most people are saying D too.

The trapezoid v'w'x'y' is a dilation of the trapezoid vwxy. The scale factor of the dilation is 1/4. SO the option D is correct.

In the given question, the trapezoid v'w'x'y' is a dilation of the trapezoid vwxy.

We have to find the scale factor of the dilation.

After dilation, rectangle vwxy was compressed to become rectangle v'w'x'y'.

Both rectangles are similar as a result. As a result, the figures' respective side lengths or segments would be proportional. the following would be the scale factor of the dilation:

From the given diagram;

The side of the v'w'x'y' is 5.

The side of the vwxy is 20.

Scale factor = v'w'x'y'/vwxy

Scale factor = 5/20

Scale factor = 1/4

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The right question is:

In the figure above, rectangle V'W'X'Y' is a dilation of rectangle VWXY. What is the scale factor of the dilation?

A. 0.25

B. 2

C. 3/4

D. 1/4

The distance between the two points is 5.4 meters.

What is coordinate ?

A coordinate system is a system that uses one or more numbers, or coordinates, to uniquely determine the position of the points or other geometric elements on a manifold such as Euclidean space.

The distance between two points in a rectangular coordinate system can be calculated using the Pythagorean theorem, which states that the distance between two points is the square root of the sum of the squares of the differences of the x-coordinates and the y-coordinates.

Given the two points (1.8, 3.0) and (4.5, -1.7), the distance can be calculated as follows:

d = √((4.5 - 1.8)^2 + (-1.7 - 3.0)^2) = √(2.7^2 + 4.7^2) = √(7.29 + 22.09) = √29.38 = 5.4

So, the distance between the two points is 5.4 meters.

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The distance between the two points is 5.4 meters.

A coordinate system is a system that uses one or more numbers, or coordinates, to uniquely determine the position of the points or other geometric elements on a manifold such as Euclidean space.

The distance between two points in a rectangular coordinate system can be calculated using the Pythagorean theorem, which states that the distance between two points is the square root of the sum of the squares of the differences of the x-coordinates and the y-coordinates.

Given the two points (1.8, 3.0) and (4.5, -1.7), the distance can be calculated as follows:

d = √((4.5 - 1.8)^2 + (-1.7 - 3.0)^2) = √(2.7^2 + 4.7^2) = √(7.29 + 22.09) = √29.38 = 5.4

So, the distance between the two points is 5.4 meters.

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Answer:

The cell phone charges is an illustration of a piecewise function represented as: y = 20; x <=300 and y =  0.25x- 50; x > 300

How to draw the graph?

When the number of minutes is not more  than 300 minutes, the charge is:

y = 20; x <=300

When it is above 300, the function is:

y = 20 + 5 + (x - 300) * 0.25

Open the bracket

y = 20 + 5 + 0.25x - 75

Evaluate the sum

y =  0.25x- 50

So, the piecewise function is:

y = 20; x <=300

y =  0.25x- 50; x > 300

Step-by-step explanation:

The graph that represents the monthly cost, y, in dollars for making x minutes of calls is:

In the graph,

The line starts at y = 20 for x = 0 and then becomes a straight line with a slope of 0.25 for x > 300.

It shows a relationship between two numbers or two expressions.

There are commonly used four inequalities:

Less than = <

Greater than = >

Less than and equal = ≤

Greater than and equal = ≥

We have,

To graph the monthly cost, we need to consider two cases:

Case 1: If x ≤ 300, then the monthly cost is a constant $20.

Case 2: If x > 300, then the monthly cost is a linear function of x:

Now,

y = 20 + 5 + 0.25(x - 300) = 25 + 0.25x - 75

y = 0.25x - 50

Therefore,

We can graph the monthly cost as follows:

For x ≤ 300, the graph is a horizontal line at y = 20.

For x > 300, the graph is a line with a slope of 0.25 and y-intercept -50.

Thus,

In the graph,

The line starts at y = 20 for x = 0 and then becomes a straight line with a slope of 0.25 for x > 300.

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Answer:

The numbers are 10 and 21.

Step-by-step explanation:

x + y = 31

xy = 210

x = 31 - y

(31 - y)y = 210

31y - y² = 210

y² - 31y + 210 = 0

(y - 21)(y - 10) = 0

y - 21 = 0  or  y - 10 = 0

y = 21  or  y = 10

The two real numbers are 10 and 21.

Quadratic Equations are algebraic expressions of degree 2 in one variable and are of the form ax² + bx + c = 0.

In simpler terms, a quadratic equation is be defined as a polynomial equation of degree 2.

Given that, there are two real numbers with a sum of 31 and a product of 210.

We need to find their values using the concept of quadratic equation,

So, according to the question,

x + y = 31 (eq 1)

xy = 210 (eq 2)

x = 31 - y

(31 - y) y = 210

31y - y² = 210

y² - 31y + 210 = 0

(y - 21) (y - 10) = 0

y - 21 = 0 or y - 10 = 0

y = 21 or y = 10

Hence, the two real numbers are 10 and 21.

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1. The equation represents an ellipse in standard form, centered at (-3, 4). The major axis endpoints are (-9, 4) and (3, 4), and the minor axis endpoints are (-3, -2) and (-3, 10). The foci are located at (-6, 4) and (0, 4).

2. The equation represents a hyperbola in standard form, centered at (-2, 4). The vertices are (-4, 4) and (0, 4), the foci are located at (-3, 4) and (-1, 4), and the asymptotes are given by the equations y = 4 ± (2/3)x.

3. The equation represents a parabola in standard form, centered at (6, 2). The vertex is located at (6, 2), the focus is at (6, 0), and the directrix is given by the equation y = 4.

1. The given equation is 4x² + 24x + 16y² - 128y + 228 = 0. To write it in standard form for an ellipse, we need to complete the square for both x and y. Grouping the x-terms and completing the square gives 4(x² + 6x) + 16(y² - 8y) = -228. Completing the square for x, we have 4(x² + 6x + 9) + 16(y² - 8y) = -228 + 36 + 144. Completing the square for y, we get 4(x + 3)² + 16(y - 4)² = -48. Dividing both sides by -48, we have the standard form: (x + 3)²/12 + (y - 4)²/3 = 1. The center of the ellipse is at (-3, 4). The major axis endpoints are (-9, 4) and (3, 4), and the minor axis endpoints are (-3, -2) and (-3, 10). The foci are located at (-6, 4) and (0, 4).

2. The given equation is 4x² + 8x + 9y² - 72y + 112 = 0. To write it in standard form for a hyperbola, we need to complete the square for both x and y. Grouping the x-terms and completing the square gives 4(x² + 2x) + 9(y² - 8y) = -112. Completing the square for x, we have 4(x² + 2x + 1) + 9(y² - 8y) = -112 + 4 + 72. Completing the square for y, we get 4(x + 1)² + 9(y - 4)² = -36. Dividing both sides by -36, we have the standard form: (x + 1)²/(-9) - (y - 4)²/4 = 1. The center of the hyperbola is at (-1, 4). The vertices are (-4, 4) and (0, 4), the foci are located at (-3, 4) and (-1, 4), and the asymptotes are given by the equations y = 4 ± (2/3)x.

3. The given equation is y² - 24x + 4y - 68 = 0.

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Answer:

6pi

Step-by-step explanation:

1.) Figure out the total circumference of the circle. The circumference of a circle is equal to 2*pi*r, which is equal to 8pi.

2.) Figure out the portion of the circle that the arc is by using the angle. Since the angle is 90 degrees, and the total measure in a circle is 360 degrees, that means that the cut out part is 90/360, which is 1/4 of the circle.

3.) Now, since the cut out part is 1/4, that means that the remaining part is 3/4 of the circle.
4.) Now, we multiply 8pi * 3/4, which is equal to 6pi.

The wavelength of radio wave is 0.1 m

Inverse variation is the relationships between variables that are represented in the form of y = k/x, where x and y are two variables and k is the constant value.

This means that the speed of a wave is affected by its frequency and wavelength.

Here the constant value is the speed of light which is 3 × 10⁸

When frequency is 3 × 10⁹, then the wavelength will be ;

wavelength = 3 × 10⁸/(3 × 10⁹)

= 0.1 m

Therefore the wavelength is 0.1m

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The confidence interval and critical value methods are equivalent in providing an interval estimate, the p-value method is used for hypothesis testing and evaluates the strength of evidence against the null hypothesis.

What is the confidence interval?

A confidence interval is a range of values that is likely to contain the true value of an unknown population parameter, such as the population mean or population proportion. It is based on a sample from the population and the level of confidence chosen by the researcher.

In general, when dealing with inferences for two population proportions, the confidence interval method and the critical value method are equivalent. These two methods provide a range of plausible values (confidence interval) for the difference between two population proportions and involve the calculation of critical values to determine the margin of error.

On the other hand, the p-value method is not equivalent to the confidence interval and critical value methods. The p-value method involves calculating the probability of observing a test statistic as extreme as, or more extreme than, the one obtained from the sample data, assuming the null hypothesis is true. It is used in hypothesis testing to determine the statistical significance of the difference between two population proportions.

To summarize:

- Confidence interval method: Provides a range of plausible values for the difference between two population proportions.

- Critical value method: Uses critical values to determine the margin of error in estimating the difference between two population proportions.

- P-value method: Determines the statistical significance of the observed difference between two population proportions based on the calculated p-value.

Hence, the confidence interval and critical value methods are equivalent in providing an interval estimate, the p-value method is used for hypothesis testing and evaluates the strength of evidence against the null hypothesis.

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Answer:

x=8 y=21

Step-by-step explanation:

7x+12=12x-28

x=8

plug in x

12x8-21=68

68+9y-77=180

y=21

The values of [x] and [y] will be 8 and 21 respectively.

This term indicates that the line 'l' is parallel to the line 'm'.

Given is the image and the measurement of angles.

It can be seen in the figure that, ∠(7x + 12) and ∠(12x - 28) from alternate interior angles as line 'l' and 'm' are parallel. These angles will be equal to each other. Therefore, we can write -

7x + 12 = 12x - 28

12x - 7x = 12 + 28

5x = 40

x = 8

Now, ∠(12x - 28) and ∠(9y - 77) form a straight angle. Therefore, we can write -

(12x - 28) + (9y - 77) = 180

(12 x 8 - 28) + (9y - 77) = 180

68 + 9y - 77 = 180

9y = 180 + 9

9y = 189

y = 21

Therefore, the values of [x] and [y] will be 8 and 21 respectively.

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[Image needed for complete question is attached with the answer]

Answer:

\(36.77150\), or 37 (rounded)

Step-by-step explanation:

1. \(\sqrt{97} = 9.84885\)

2. \(9.84885\) + \(8.169178744\) = \(18.01803\)

3. \(\frac{18.01803}{0.49}\)

4. = \(36.77150\)

You can simplify 36.77150 to 37

... Hope this helped! Have a wonderful New Year!

The value of the equation is A = 36.77

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is

A = ( √97 + 2.014³ ) / 0.49   be equation (1)

On simplifying the equation , we get

√97 = 9.8488578

2.014³ = 8.169178744

Substituting the values in the equation , we get

A = ( 9.8488578 + 8.169178744 ) / 0.49

A = 18.018036544 / 0.49

A = 36.77150

Therefore , the value of A is 36.77

Hence , the equation is A = 36.77

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Answer:

what is the difference between 880 and 580

Answer:

Answer A

as taught to us till now

New Zealand’s Kaikoura Peninsula, a ruggedly beautiful spit of land, bordering an undersea canyon, is home to the sperm whale and the giant squid.

A sentence that has at least two independent clauses but no dependent clauses is referred to as a compound sentence. An independent clause is what? It's a sentence-worthy phrase on its own. I slept in late is a stand-alone clause. "The sun is shining" and "Ella acquired a new dog" are both true. Each makes sense on its own and has a subject and verb. Dependent clauses are those that cannot stand alone as full sentences, such as "whenever I go to the lake," "how she got lost," and "what makes him happy." On their own, they are incomprehensible. At least two separate clauses must be present in a compound sentence.

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Answer:

1.0954.

Step-by-step explanation:

Standard error  =  std dev / √n

=  6 / √30

= 1.0954.

On solving the provided question, we can say that by using the triangle, ∠LNM=35° and ∠NML=55°

A triangle is a polygon since it has three sides and three vertices. It is one of the basic geometric shapes. The name given to a triangle containing the vertices A, B, and C is Triangle ABC. A unique plane and triangle in Euclidean geometry are discovered when the three points are not collinear. Three sides and three corners define a triangle as a polygon. The triangle's corners are defined as the locations where the three sides converge. 180 degrees is the result of multiplying three triangle angles.

∠LNM=(4x+3)°

∠NML=(5x+15)°

∠NLM=90°

Since, its right angle triangle, sum of all angle is 180°

∠LNM+∠NML+∠NLM=180°

(4x+3)+(5x+15)+90=180°

9x+18=90°

9x=72

x=8

Hence,

∠LNM=(4x+3)°=4*8+3=35°

∠NML=(5x+15)°=5*8+15=55°

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Answer:

118, 34, 28

Step-by-step explanation:

180-118-28=34

Answer:

K H J

Step-by-step explanation:

K= 118°

H= 34°

J= 28°

The equation x^2+y^2=100 is not a function

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

x^2 + y^2 = 100

The above equation is a circle equation

As a general rule, we have

Circle equations are not functions and they do not represent a function on a graph

Hence, x^2+y^2=100 is not a function

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The number line represents a discrete random variable. The reason for this is that the variable can only take on the values that are represented by the dots or points on the number line. These values cannot be broken down into smaller units or decimals.

A random variable is a variable that can take on different values, depending on the outcome of a random event.

A discrete random variable is a random variable that can only take on certain values.

A continuous random variable, on the other hand, can take on any value within a given range.

The given number line has dots or points that represent the possible values that the random variable can take on.

The dots or points on the number line suggest that the random variable is discrete.

Therefore, the number line represents a discrete random variable. The reason for this is that the variable can only take on the values that are represented by the dots or points on the number line. These values cannot be broken down into smaller units or decimals.

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Answer:

56% decrease

Step-by-step explanation:

Answer:

There was a 56% decrease

Step-by-step explanation:

The Chi-square test is a statistical test used to determine if there is a significant difference between observed and expected frequencies in categorical data. In this example, the test is used to assess whether there is a significant difference in the mean breaking strengths of two types of cables.

The Chi-square test of significance is employed when dealing with categorical or nominal data. It compares the observed frequencies with the frequencies that would be expected if the variables were independent. In this case, the breaking strengths of the two cables are the variables of interest.

To perform the test, the first step is to define the null hypothesis (H0) and the alternative hypothesis (Ha). In this example, H0 assumes that there is no difference in the mean breaking strengths of the two cables, while Ha suggests that there is a difference.

Next, the test statistic, denoted by X2 (chi-square), is calculated using the formula X2 = Σ[(O - E)²/E], where O represents the observed frequencies and E represents the expected frequencies under the assumption of independence.

To determine the expected frequencies, we need to estimate the means and variances of the breaking strengths. Here, x = 1925 and sigma = 40 for the first cable, and x = 1905 and sigma = 30 for the second cable.

Once the test statistic is calculated, it is compared to a critical value from the Chi-square distribution with degrees of freedom equal to (r - 1)(c - 1), where r is the number of rows and c is the number of columns in the contingency table. The significance level of 0.01 determines the critical value.

If the calculated X2 value is greater than the critical value, we reject the null hypothesis and conclude that there is sufficient evidence to indicate a difference in the mean breaking strengths of the two cables. Conversely, if the calculated X2 value is less than or equal to the critical value, we fail to reject the null hypothesis and conclude that there is no significant difference.

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The length of AC in triangle BAC is equal 10.7 units

In trigonometry, the cosine rule says that the square of the length of any side of a given triangle is equal to the sum of the squares of the length of the other sides minus twice the product of the other two sides multiplied by the cosine of angle included between them.

The formula is given as

AC² = AB² + BC² - 2(AB)(BC) cos AC

AC² = 6² + 7² - 2(6)(7)cos110

AC = 10.7

Using cosine rule, the length of AC is 10.7 unit.

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Answer:

The lowest elevation, in meters, in Louisiana is 20 m below sea level

Step-by-step explanation:

Below sea level means negative integer

So, Negative integer represents the lowest elevation in California

The lowest elevation in California  below sea level = -80 m

We are given that The lowest elevation in Louisiana is also below sea level and is about 1/4 the value of California's lowest elevation.

So, The lowest elevation, in meters, in Louisiana =\(\frac{1}{4} \times (-80)\)

The lowest elevation, in meters, in Louisiana = -20 m

Hence The lowest elevation, in meters, in Louisiana is 20 m below sea level

Answer:

0.004.

Step-by-step explanation:

First, I'll change \(\frac{5}{4}\) to a decimal.

\(\frac{5}{4} = 1.25.\)

Then, we divide.

\(\frac{1.25}{10} = 0.004.\)

The answer is 0.004.

Answer:

Step-by-step explanation:

I have two questions; One, are you the student? Two, is this a trick question because if it is it's freaking hilarious

Answer:

Its B

Step-by-step explanation:

The correct statement is "All real numbers that are greater than negative two".

A relationship between two expressions or values that are not equal to each other is called inequality.

Given an inequality, -5x<10

On solving, we get,

x > -2

Which is saying that, solution is all real number that is greater than -2.

Hence, All real numbers that are greater than negative two.

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