NEED HELP WILL GIVE BRAINLY
What is the best description of the relationship in the
scatterplot below?

C nonlinear association
D no association

the area of trapezoid efgh is given by the expression 3 * 12^2 / (x + 12) cm^2.

Let's denote the length of ab as x. Since line dc is twice the height of trapezoid abcd and four times the length of ab, its length is 2 * 6 = 12 cm. Additionally, line dc is also the sum of the lengths of ef and gh. Thus, we have ef + gh = 12 cm.

Since trapezoid abcd is proportional to trapezoid efgh, the ratio of their areas is equal to the square of the ratio of their corresponding side lengths. Therefore, (Area of efgh) / (Area of abcd) = (ef + gh)^2 / (ab + cd)^2.

Plugging in the values, we have (Area of efgh) / (Area of abcd) = (12)^2 / (x + 12)^2.

Given that the height of abcd is 6 cm, its area is (1/2) * (ab + cd) * 6 = (1/2) * (x + 12) * 6 = 3(x + 12) cm^2.

Multiplying both sides of the proportionality equation by the area of abcd, we get (Area of efgh) = (Area of abcd) * [(ef + gh)^2 / (ab + cd)^2].

Substituting the values, we find (Area of efgh) = 3(x + 12) * [(12)^2 / (x + 12)^2].

Simplifying further, we get (Area of efgh) = 3 * 12^2 / (x + 12).

Therefore, the area of trapezoid efgh is given by the expression 3 * 12^2 / (x + 12) cm^2.

Learn more about trapezoid here:

https://brainly.com/question/29193735

#SPJ11

It takes approximately 26.56 seconds for the ferris wheel to make one revolution.

The ferris wheel makes one complete revolution when the distance of the person above the ground returns to the original value after completing a full circle.

This occurs when the sine function returns to its maximum value, which is 1.

Thus, we have the following equation:

20 * sin(π/30 * t) + 10 = 20

Solving for t,

we will get:

sin(π/30 * t) = 0.5

Taking the inverse sine of both sides:

(π/30 * t) = sin^-1(0.5)

Multiplying both sides by 30/π,

we will get the following:

t = (30/π) * sin^-1(0.5)

Now solving the value of t

We will get it as: t ≈ 26.56 seconds.

For more questions on Sine and Inverse Sine function

https://brainly.com/question/23902719

#SPJ4

Answer:

  30 minutes

Step-by-step explanation:

You want to know how long it takes for Betty and Bullwinkle to mow the lawn working together, if it takes them 120 minutes and 40 minutes, respectively, when they work separately.

Each minute, Betty mows 1/120 of the lawn, and Bullwinkle mows 1/40 of the lawn, for a total of ...

  1/120 +1/40 = 1/120 +3/120 = 4/120 = 1/30 . . . . of the lawn

The entire lawn is 30/30 of the lawn, so will take 30×(1 minute) = 30 minutes to mow.

Working together, the mowing takes 30 minutes.

Answer:

This is my answer, Credit to the person on top

Answer: its a

Step-by-step explanation:

We can use the fact that the sum of all angles in a triangle is 180° to find the missing angles in both triangles.Therefore, the missing angles in ΔABC are ∠E = 47° and ∠F = 76°, and in ΔDEF is ∠D = 93°.

A geometric figure formed by two rays that share a common endpoint is termed as an angle. It is measured in degrees or radians and has different types based on its measure.

In ΔABC, we know that ∠A = 57° and that the other two angles are ∠E and ∠F. Therefore, we have:

∠A + ∠E + ∠F = 180°

57° + ∠E + ∠F = 180°

∠E + ∠F = 180° - 57°

∠E + ∠F = 123°

In triangle ΔDEF, we know that one angle is 40° and the other angle is ∠D. Therefore, we have:

∠D + 40° + ∠E = 180°

∠D + ∠E = 180° - 40°

∠D + ∠E = 140°

We now have two equations with two unknowns (∠E + ∠F = 123° and ∠D + ∠E = 140°). Solving the system of equations simultaneously gives us:

∠E = 47°

∠F = 76°

∠D = 93°

To know more about triangle visit:

https://brainly.com/question/2773823

#SPJ1

Required value of m∠F is 32°.

What is angles of triangle?

In geometry, a triangle is a polygon with three sides and three angles. The angles of a triangle are important characteristics that help define the shape and size of the triangle. The sum of the angles of a triangle is always 180 degrees, which is known as the angle sum property of triangles.

There are different types of triangles based on the angles they contain. An acute triangle has three acute angles, which means all angles are less than 90 degrees. A right triangle has one right angle, which is exactly 90 degrees. A obtuse triangle has one obtuse angle, which means one angle is greater than 90 degrees. A scalene triangle has three unequal angles, while an isosceles triangle has two equal angles and two equal sides, and an equilateral triangle has three equal angles and three equal sides.

Here given, m∠J is 116° and m∠E is 32°

The sum of the angles in a triangle is always 180 degrees. Therefore, we can use this fact to find the missing angle:

m∠E + m∠F + m∠J = 180°

Substituting the given values, we get:

32 + m∠F + 116 = 180°

Simplifying the equation, we get:

m∠F + 148 = 180°

Subtracting 148 from both sides, we get:

m∠F = 32°

Therefore, the answer is (B) 32°.

Learn more about triangle here,

https://brainly.com/question/17335144

#SPJ1

Correct question is "There is a triangle EFJ and If m∠J is 116° and m∠E is 32°, what is m∠F?

A.

116°

B.

32°

C.

58°

D.

64°"

Number of ways to roll 5 distinct dice and get 3 of a kind is 7200

To find the number of ways to roll 5 distinct dice and get 3 of a kind:

Choose which number appears three times. There are 6 possible choices.

Choose which three dice will show the chosen number. There are 5 ways to choose the first die, 4 ways to choose the second die, and 3 ways to choose the third die, for a total combinations 5 x 4 x 3 = 60 ways.

Choose the numbers that the remaining two dice will show. There are 5 choices for the first die and 4 choices for the second die, but the order in which we choose them doesn't matter, so we need to divide by 2 to correct for overcounting. This gives us (5 x 4) / 2 = 10 ways.

Choose which of the two remaining dice will show the first chosen number. There are 2 choices.

Multiply all of the choices together: 6 x 60 x 10 x 2 = 7,200.

Therefore,  there are 7,200 ways to roll 5 distinct dice and get 3 of a kind.

Learn more about combinations here

brainly.com/question/2295036

#SPJ4

The norm of vector u, ||u||, is 108.23.

To find the norm of vector u, denoted as ||u||, we use the formula:

||u|| = √(|a₁|² + |a₂|² + |a₃|²)

Where a₁, a₂, and a₃ are the components of vector u.

Substituting the values of vector u = (2 + 88i, 1 + 63i, 0) into the formula, we have:

||u|| = √(|2 + 88i|² + |1 + 63i|² + |0|²)

= √((2 + 88i)(2 - 88i) + (1 + 63i)(1 - 63i) + 0)

= √(4 + 176i - 176i - 7744i² + 1 + 63i - 63i - 3969i²)

= √(4 + 1 - 7744i² - 3969i²)

= √(5 - 7744(-1) - 3969(-1))

= √(5 + 7744 + 3969)

= √(11718)

Rounding off the answer to 2 decimal places, we have:

||u|| ≈ √11718 ≈ 108.23

Therefore, the norm of vector u, ||u||, is approximately 108.23 (rounded off to 2 decimal places).

To learn more about norm here:

https://brainly.com/question/28384760

#SPJ4

Answer:

D

Step-by-step explanation:

Because negative is smaller than fractions. and ABC, is all off.

Answer: I think the answer is D/ the last answer

Step-by-step explanation:

The following statements are true:

1. During the first 10 days the professor's standard deviation was more than 0.

4. It is impossible to tell anything about the professor's standard deviation for the first 10 days.

6. Considering all 11 days, the professor's standard deviation was higher than the standard deviation of the first 10 days.

The standard deviation is a measure of how spread out a set of data is. In this case, the data is the prices of the value meals that the professor orders. If all 10 of the first meals cost $5.39, then the standard deviation would be 0.

This is because there is no variation in the data. However, on the 11th day, the professor orders a meal that costs $4.38. This adds variation to the data, which means that the standard deviation will be greater than 0.

Learn more about standard deviation

https://brainly.com/question/475676

#SPJ4

the answer is 12 hope this helps!!

Completing the table to expressed a portion spent on each cost as a percent fraction and decimal will be:

FOOD:

Fraction = 1/4

Decimal = 0.25

Percent = 25%

RENT:

Fraction = 6/10

Decimal = 0.60

Percent = 60%

TRANSPORT:

Fraction = 3/20

Decimal = 0.15

Percent = 15%

A fraction simply means a piece of a whole. In this situation, the number is represented as a quotient such that the numerator and denominator are split. In this situation, in a simple fraction, the numerator as well as the denominator are both integers.

It should be noted that 1/4 as a percentage will be:

= 1/4 × 100

= 25%

Learn more about fractions on:

https://brainly.com/question/78672

#SPJ1

The number of combinations of 6 boys and 20 girls that can exist among 26 children born in a hospital on a given day is 230,230.

]To calculate the number of combinations, we can use the concept of binomial coefficients. The formula for calculating the number of combinations is C(n, k) = n! / (k!(n-k)!), where n is the total number of objects and k is the number of objects we want to select.

In this case, we have 26 children in total, and we want to select 6 boys and 20 girls. Plugging these values into the formula, we get C(26, 6) = 26! / (6!(26-6)!) = 230,230. Therefore, there are 230,230 different combinations of 6 boys and 20 girls that can exist among the 26 children born in the hospital on that given day.

Learn more about combinations here : brainly.com/question/28065038

#SPJ11

Answer: 105

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

the sum of all angles in a triangle is always 180°.

the combination of an inner and an outer angle towards a flat line is always 180°. simply because that line simulates a diameter of a circle with the vertex being the center. and half a circle has 180°.

so,

180 = angle 3 + angle 4 = angle 3 + 120°

angle 3 = 60°

180 = angle 1 + angle 2 + angle 3 = angle 1 + 35 + 60

angle 1 = 180 - 35 - 60 = 85°

180 = angle 1 + angle 5 = 85 + angle 5

angle 5 = 95°

Answer:

-46

Step-by-step explanation:

jsjsjdbsunejrhduhe8ehs8je8ejdunduebd

Answer:

0.16666666666667.

Step-by-step explanation:

The table has a greater rate of change.

The rates of change are equal.

In the given problem, we have a table showing the relationship between x and y values. By comparing the change in y with the change in x, we can determine the rate of change. Looking at the table, we observe that for every increase of 1 in x, there is a corresponding increase of 1 in y. Therefore, the rate of change for this table is 1.

The slopes are equal.

The equation has a greater slope.

In problem 2, we are given a linear equation in the form y = mx + b, where m represents the slope. The given equation is y = 2x + 7, which means the slope is 2. To compare the rates of change, we compare the slopes. If the slopes are equal, the rates of change are equal. In this case, the slopes are equal to 2, so the rates of change are the same.

The function rule has a greater slope.

The slopes are equal.

In problem 3, we are told that as x increases by 1, y increases by 3. This information gives us the rate of change between x and y. The slope of a function represents the rate of change, and in this case, the slope is 3. Comparing the slopes, we find that they are equal, as both have a value of 3. Therefore, the rates of change are the same.

Similar question here:

https://brainly.com/question/29181688?referrer=searchResults

#SPJ11

Answer:

the first option

Step-by-step explanation:

hope this help have a great rest of your night :)❤

Answer:

7 hours

Step-by-step explanation:

715 / 13 = 55 miles per hour

385 / 55 = 7 hours

Best of Luck!

Answer:

7 hours

Step-by-step explanation:

Therefore, the maximum blood pressure of 200 mmHg occurs at approximately 0.524 seconds, and the minimum blood pressure of 120 mmHg occurs at approximately 1.571 seconds within the time interval 0 ≤ t ≤ 0.75.

To find the maximum and minimum values of the blood pressure function p(t), we need to examine the behavior of the sinusoidal term, -40sin(3t), within the given time interval. The function is a sine wave with an amplitude of 40 and a period of 2π/3. This means that the maximum value occurs at the peak of the sine wave (amplitude + offset), and the minimum value occurs at the trough (amplitude - offset).

The maximum blood pressure corresponds to the peak of the sine wave, which is 40 + 160 = 200 mmHg. To find the time at which this occurs, we set the argument of the sine function, 3t, equal to π/2 (since the peak of the sine wave is π/2 radians). Solving for t gives t = (π/2) / 3 = π/6 ≈ 0.524 seconds.

Similarly, the minimum blood pressure corresponds to the trough of the sine wave, which is -40 + 160 = 120 mmHg. Setting the argument of the sine function equal to 3π/2 (the trough of the sine wave), we find t = (3π/2) / 3 = π/2 ≈ 1.571 seconds.

Therefore, the maximum blood pressure of 200 mmHg occurs at approximately 0.524 seconds, and the minimum blood pressure of 120 mmHg occurs at approximately 1.571 seconds within the time interval 0 ≤ t ≤ 0.75.

Learn more about sine function here:

https://brainly.com/question/32247762

#SPJ11

Answer:

Step-by-step explanation:

-2x+8

The true statement is: "Octave is the name of a particular interval size."

In music theory, an octave refers to the interval between two pitches where the higher pitch has a frequency that is exactly twice that of the lower pitch. It represents a doubling or halving of the frequency. For example, if we start on the note A and move up to the next A, we have traversed an octave.

An interval, on the other hand, refers to the distance between two pitches. It is the numerical representation of the difference in pitch between two notes.

The statement mentioning "interval as the name of a particular octave size" is incorrect because the octave is a specific interval size, not the other way around.

The statement suggesting that "the fifth is a kind of octave" is also incorrect. The fifth is a specific interval that represents the distance of five diatonic scale steps between two pitches.

Lastly, the statement that "a synonym for distance is octave" is not true. While an octave represents a specific interval size, the term "distance" is a more general term that can refer to the measurement between any two pitches, regardless of the specific interval size.

for such more question on interval

https://brainly.com/question/23558817

#SPJ8

The distance rides by Nicole in 6 hours with a speed of 9.6 km/hr in her bicycle is 57.6 km.

Given,

The speed of the bicycle ride by Nicole = 9.6 kilometers per hour

The time taken by Nicole to ride = 6 hours

We have to find the distance rides by Nicole in 6 hours with e speed of 9.6 km/hr her bicycle.

Formula for calculating speed;

Speed = distance / time

Here,

Speed = 9.6 km/hr

Time = 6 hours

Then,

Distance = Speed x Time

Distance = 9.6 x 6

Distance = 57.6 km

That is,

The distance rides by Nicole in 6 hours with a speed of 9.6 km/hr in her bicycle is 57.6 km.

Learn more about speed here;

https://brainly.com/question/18912602

#SPJ4

Answer:

No-load fund
.......................

The long polynomial division of the given equation is \(\ 2x^2-5x+4-\frac{6}{5x+1}\).

What is long polynomial division?

Polynomial long division is a generalized variant of the well-known arithmetic operation known as long division. It is an algorithm for dividing a polynomial by another polynomial of the same or lower degree.

We have,

            \(10x^{3} -23\pi x^{2} +15x - 2\)   £ \(5x+1\)

By taking long division

                        \(= \:\frac{10x^3-23x^2+15x-2}{5x+1} \\)

                        \(= \quad 2x^2-5x+4-\frac{6}{5x+1}\)

                        \(= \ 2x^2-5x+\frac{20x-2}{5x+1}\)

                        \(= \ 2x^2-5x+4+\frac{-6}{5x+1}\)

By simplifying we get,

                        \(= \ 2x^2-5x+4-\frac{6}{5x+1}\)

To learn more about long polynomial division visit,

https://brainly.com/question/24662212

#SPJ13

Step-by-step explanation:

plz refer the attachment

The correct option is option (b). The percent overall error rate for the given confusion matrix is approximately 37.5%.

In the confusion matrix, the diagonal elements represent the correct predictions, while the off-diagonal elements represent the incorrect predictions. The overall error rate is calculated by summing up the incorrect predictions and dividing it by the total number of predictions.

In this case, the total number of predictions is the sum of all the elements in the confusion matrix, which is 80 + 100 + 20 + 120 = 320.

The total number of incorrect predictions is the sum of the off-diagonal elements, which is 100 + 20 = 120.

The percent overall error rate is then calculated by dividing the total number of incorrect predictions by the total number of predictions and multiplying by 100:

(120 / 320) * 100 = 37.5%.

Therefore, the percent overall error rate is approximately 37.5%, which corresponds to option b.

To learn more about confusion matrix visit:

brainly.com/question/30764998

#SPJ11

The range of computer-generated random numbers is

[0, 1)

[–8, 8]

[–8, 0)

[1, 8]

The confusion matrix for a classification method with Class 0 and Class 1 is given below. What is the percent overall error rate?

confusion matrix

actual/predicted            0                1

          0                          80            100

           1                          20            120

\(a. \( 45.67 \% \)\\b. \( 37.50 \% \)\\ c. \( 55.82 \% \)\\ d. \( 38.70 \% \\)

Answer:

y = -2x - 4

Step-by-step explanation:

We transform the line equation of L:

2x + y = 3 --(-2x)--> f(x) = y = -2x + 3

We now know that L intersects the y-axis at 3 and it has a slope of -2.

In order to construct a parallel line M, it needs to have an identical slope to L.

All we need to do now is to move one step from the given point (1,-6) towards 0 with the predetermined slope of -2, resulting in the point (0,-4).

Since we know slope and intersection with the y-axis (0,-4), we can construct the line equation:

f(x) = y = -2x - 4 for line M.

The solution to the inequality is g > 33

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

g−4>29

Collect the like terms

So, we have the following representation

g > 4 + 29

Evaluate the like terms

This gives

g > 33

Divide both sides by 1

g > 33

Hence, the solution is g > 33

Read more about inequality at

brainly.com/question/25275758

#SPJ1

1) Because \(\angle AOC\) is a central angle, the answer is 50 degrees.

2) By the inscribed angle theorem, the answer is 25 degrees.