HELP ASAP!!!
REASONS ONLY

Given: ABCD is a parallelogram, FC is congruent to EC, DE bisects BC and BF bisects DC Prove: ABCD is a rhombus

(i put random reasons just to show all of them)

Answer:

you dont need to round

Step-by-step explanation:

multiply v and U and then add the other numbers and that should work

Answer:

\(\huge\boxed{\sf r = 37\ mm}\)

Step-by-step explanation:

Let the radius be r

UV is tangent to the circle T which means UV is perpendicular to UT, that makes ΔUVT a right-angled triangle.

Which means:

∠TUV = 90°

So, We can use pythagoras theorem to find the radius of the circle.

In the Δ:

Hypotenuse = r + 9

Base = r

Perpendicular = 12

Pythagoras Theorem:

(Hypotenuse)² = (Base)² + (Perpendicular)²

(6 + r)² = (r)² + (22)²

(6)² + 2(6)(r) + (r)² = r² + 484

36 + 12r + r² = r² + 484

Subtract r² to both sides

36 + 12r = 484

Subtract 36 to both sides

12r = 484 - 36

12r = 448

Divide both sides by 12

r = 448/12

r = 37 mm

\(\rule[225]{225}{2}\)

To investigate whether there is convincing evidence, at a 5 percent level of significance,

that a longer hand length is associated with a decrease in the time to complete the 100-meter freestyle, the researcher should use a two-sample t-test.

The independent variable is hand length, and the dependent variable is time to complete the 100-meter freestyle.

The t-test compares the mean time to complete the 100-meter freestyle for swimmers with longer hand lengths to the mean time for swimmers with shorter hand lengths.

The t-test is appropriate because the sample size is small, and the researcher is comparing two groups.

By conducting a two-sample t-test, the researcher can determine whether the observed difference in mean times is statistically significant or due to chance.

learn more about researcher here:brainly.com/question/18723483

#SPJ11

Answer:

\(x=\frac{1}{7}y+\frac{3}{7}\)

Step-by-step explanation:

\(y=7x-3\)

\(7x-3=y\)

\(7x-3+3=y+3\)

\(\frac{7x}{7}= \frac{y+3}{7}\)

\(x=\frac{1}{4}y+\frac{3}{7}\)

The z-scores will remain the same regardless of whether you use inches or centimetres for the height measurements.

The z-scores will not change if you convert the height measurements from inches to centimetres or vice versa. The z-score is a standard score representing the number of standard deviations, a value above or below the mean of a normal distribution.

The z-score is calculated using the formula z = (x - mean)/standard deviation, where x is the value being compared to the mean and standard deviation of the distribution.

Converting the height from inches to centimetres or vice versa will only change the units of measurement, but the relative position of a value within the distribution will remain unchanged.

Therefore, the z-scores will remain the same regardless of whether you use inches or centimetres for the height measurements.

To know more about z-scores, here

https://brainly.com/question/15016913

#SPJ4

Slope intercept form for he given equation is \(y=3x+17\).

The line with m as the slope, m and c as the y-intercept is the graph of the linear equation \(y = mx + c\). The values of m and c are real in the slope-intercept form of the linear equation.

The slope, m, is a measure of how steep a line is. Sometimes, the gradient of a line is referred to as its slope. A line's y-intercept, c, denotes the y-coordinate of the location where the line's graph crosses the y-axis.

Slope intercept form:\(y = mx + c\)

Point slope form: \(y-y1=m(x-x1)\)

Given point(-3,8) and slope of 3;

⇒\(y-8=3(x+3);\\y=3x+9+8;\\y=3x+17\)

Slope intercept form for he given equation is \(y=3x+17\).

To refer more about Slope intercept form, visit:

https://brainly.com/question/1884491

#SPJ1

Answer:

Reindeer runs in 3 hrs = 20×1/4 miles

Reindeer runs in 1 hr = 81/4 × 1/3 = 6 × 3/4 miles (option 2)

The ticket price that maximizes revenue is $6.7

We have the information from the question:

A baseball team plays in a stadium that holds 40200 spectators.

The ticket price at $16

The average attendance is 10400.

The price dropped to $13, the average attendance rose to 22400.

We have to find the :

What ticket price would maximize revenue?

Now, According to the question:

Let x be the ticket price in dollars

Let y be the attendance.

The two points are given :

(16, 10400) and (13, 22400)

Using the point-slope formula, we can find the equation of the line:

y - 10400 = (22400 - 10400)/(13 - 16) × (x - 16)

y - 10400 = 12000/-3 × (x - 16)

y - 10400 = -4000x - 64000

y = -4000x - 64000 + 10400

y = - 4000x - 53,600

Revenue R is equal to the product of price and attendance: R = xy.

Substituting y = -4000x - 53,600 , we get:

R = x(-4000x - 53,600)

\(R = -4000x^2 - 53,600x.\)

We will use x = -b/2a

where a and b are the coefficients from the form \(ax^2 + bx + c\)

x = 53,600/ (-8000)

x = 6.7    

Learn more about Linear at:

https://brainly.com/question/31510530

#SPJ4

Step-by-step explanation:

Probably a cylinder would work best

volume of a cylinder = pi r^2 h

Answer:

5x=45

Step-by-step explanation:

Solve: 4+x=12

~ Subtract 4

~ x = 8

~ (not nine)

-----

Solve: 2x=20

- Divide by 2 (isolate x)

- x = 10

- (not nine)

-----

Solve: x+7=26

~ Subtract 7

~ x = 19

~ (not nine)

-----

Solve: 5x=45

- Divide by 5 (isolate x)

- x = 9

- (Nine! Our answer)

Answer:

Horizontal

Step-by-step explanation:

Answer:

y = 9 is a horizontal line :)

Step-by-step explanation:

y=9 is the equation of a horizontal line. The slope is 0. This means that for any value of x that is chosen, the y-value is always 9 Hence y=9 .

Answer:

-6y+27

Step-by-step explanation:

-3*2y=-6y

-3*-9=27

because multiplying 2 negatives make a positive.

so,

-3(2y-9) = -6y+27

The value of x in the given triangle is 1.82 cm using the angle bisector theorem.

A triangle is a polygon with three edges and three vertices. It belongs to the basic geometric shapes. A triangle with the parts A, B, and C is referred to as triangle ABC. Any three points that are not collinear in Euclidean geometry result in a separate triangle and a distinct plane. A triangle is a type of polygon with three sides; the triangle's apex is the point where the two longest sides meet. Two sides are brought together at an angle.

What is angle bisector theorem?

The ratios of the two segments that a line that bisects the opposing angle splits a triangle's side into are the subject of the angle bisector theorem in mathematics. It contrasts their proportionate lengths with the other two triangle sides' proportional lengths.

In the given triangle,

5/6=x/4-x

20-5x=6x

20=11x

x=20/11= 1.82 cm

To know more about angle bisectors, visit

https://brainly.com/question/30234493

#SPJ1

Answer:

288

Step-by-step explanation:

To simplify use the mnemonic device PEMDAS (parenthesis, exponent, multiplication, division, addition, subtraction)

First simply -6 and 13 (since they are in the parenthesis)

-11+5+6(7)^2

Now find out what 7^2 is

-11 + 5 + 6(49)

Next multiply 6 and 49 (294)

Lastly add 5 then subtract 11 from it

299-11

288

Answer:

Hello! :) I hope I am correct!

Step-by-step explanation:

(The answer should be 288)

Below is the steps!!

Steps:

⇒-6+6(-6+13)^2

⇒-6+6(7^2)

⇒-6+(6)(49)

The answer would be 288 if you solve this equation.

The last step:

⇒-6+294

Which equals 288

Therefore your answer would be 288.

Hope this helps!

By:BrainlyAnime! ^-^

(Just in case you didn’t understand, I attached a picture!)

The standard form definition of the linear function y = 1/3x -  5 is given as follows:

x - 3y = 15.

The linear function for this problem is defined as follows:

y = 1/3x -  5

It is given in slope-intercept form, but to write in standard form, we must have the terms with x and y on the same side of the equality, as follows:

x/3 - y = 5.

For standard form, the coefficients must also be integers, hence the entire expression is multiplied by 3, as follows:

x - 3y = 15.

More can be learned about linear functions at https://brainly.com/question/24808124

#SPJ1

Simplified form of fourth root of 2401x¹²y¹⁶  is  7x³y⁴

Equation is the defined as mathematical statements that have a minimum of two terms containing variables or numbers is equal.

Given,

⁴√2401 x¹² y¹⁶=⁴√7*7*7*7 (x³)⁴(y⁴)⁴

                       =⁴√(7)⁴ (x³)⁴(y⁴)⁴

                       =⁴√(7 x³y⁴)⁴

                       =  7 x³y⁴

Therefore, Simplified form  fourth root of 2401x¹²y¹⁶  is  7x³y⁴.

To learn more question related equation  click on the link below:

brainly.com/question/10413253

#SPJ1

Answer:

Statistical inference

Step-by-step explanation:

Answer:

136

Step-by-step explanation:

2(6)^2-(-4)^3

2(36)+64

72+64

-Hope it helps :)

The expression 83−7.5t represent C. the volume of water left after t hours.

From the information, each hour, 7.5 liters drain from a large water tank and thee tank initially held 83 liters of water.

Therefore, the expression 83−7.5t represent the volume of water left after t hours.

In conclusion, the correct option is C.

Learn more about expressions on

brainly.com/question/22048677

#SPJ1

Answer:

4 remainder of 3

Step-by-step explanation:

19 / 4 = 4 r 3

Answer:

There are 29 quarters and 1 nickel. (The upcoming and this sentence is pre-written and copy and pasted in every brainly question or comment I write or answer.) If this answer helped you please consider giving it brainliest. If my answer was wrong and you got marked wrong for it, I deeply apologize and hope you will forgive me, since everyone makes mistakes sometimes. If you need me to elaborate on my answer or give further explanation on it, please ask and I will do so. If you need to explain your reasoning on your work feel free to use my words- word for word- without crediting me, the answer was made for you anyways! Hope yall learn from my answer and it helps you in the future with assignments, quizzes, test’s, and more!  

- •Trix•

( Yes I know my - •Trix• thingy is not my user but it’s what I would change it to if I could but I can't, please address me as Trix while commenting or talking to me here.)

Answer: 29 Quarters, 1 Nickel.

Step-by-step explanation:

29 Quarters is $7.25 and the nickel added makes its $7.30 (since a nickel is $.05)

When faced with ethical conflicts as an engineer, reflect on the situation, consult guidelines, seek advice, consider legal obligations, explore alternatives, engage in dialogue, document decisions, and seek professional support if needed.

Take the time to fully understand the ethical conflict at hand and consider its implications on various stakeholders, including public safety, the environment, and professional integrity.

Refer to professional codes of ethics and guidelines established by engineering organizations. These documents often provide principles and standards to help engineers navigate ethical dilemmas.

Discuss the situation with trusted colleagues, mentors, or supervisors who can provide insight and advice based on their experience and knowledge. This external perspective can help you evaluate different options.

Understand the legal framework relevant to your profession and ensure compliance with applicable laws and regulations. This may influence the available choices and potential consequences.

Look for creative solutions that uphold ethical values and address the conflict. Consider the potential impact of each option on different stakeholders and evaluate the feasibility and consequences of each approach.

Communicate openly and honestly with all parties involved in the conflict. Engaging in constructive discussions can help find common ground and identify potential compromises.

Maintain a record of the steps you took to address the ethical conflict, including the considerations, discussions, and decisions made. This documentation can be valuable if questions arise later.

If the conflict seems complex or significant, consider consulting with ethics committees, legal advisors, or other relevant professionals who can provide specialized guidance.

Remember, ethical conflicts can be challenging, and there may not always be a straightforward solution. It's essential to approach such situations with integrity, careful consideration, and a commitment to upholding the highest ethical standards of the engineering profession.

To learn more about ethical conflicts visit:

https://brainly.com/question/28138937

#SPJ11

Answer:So the radius of the cylinder is 2.65 cm.

A cylinder can be defined as a solid figure that is bound by a curved surface and two flat surfaces. The surface area of a cylinder can be found by breaking it down into 2 parts:

1.  The two circles that make up the caps of the cylinder.

2.  The side of the cylinder, which when "unrolled" is a rectangle.

The area of each end cap can be found from the radius r of the circle, which is given by:

A = πr2

Thus the total area of the caps is 2πr2.

The area of a rectangle is given by:

A = height × width

The width is the height h of the cylinder, and the length is the distance around the end circles, or in other words the perimeter/circumference of the base/top circle and is given by:

P = 2πr

Thus the rectangle's area is rewritten as:

A = 2πr × h

Combining these parts together we will have the total surface area of a cylinder, and the final formula is given by:

A = 2πr2 + 2πrh

where:

π  is Pi, approximately 3.142

r  is the radius of the cylinder

h  height of the cylinder

By factoring 2πr from each term we can simplify the formula to:

A = 2πr(r + h)

The lateral surface area of a cylinder is simply given by: LSA = 2πr × h.

Example 1: Find the surface area of a cylinder with a radius of 4 cm, and a height of 3 cm.

Solution:

SA = 2 × π × r2 + 2 × π × r × h

SA = 2 × 3.14 × 42 +  2 × 3.14 × 4 × 3

SA = 6.28 × 16 + 6.28 × 12

SA = 100.48 + 75.36

SA = 175.84

Surface area = 175.84 cm2

Example 2: Find the surface area of the cylinder with a radius of 5.5cm and height of 10cm.

Solution:

The radius of cylinder = 5.5 cm.

The height of cylinder = 10 cm.

The total surface area of the cylinder is therefore:

TSA = 2πr(r+h)

TSA = 11π (5.5+10)

TSA = 170.5 π

TSA = 535.6 cm2

Example 3: Find the total surface area of a cylindrical tin of radius 17 cm and height 3 cm.

Solution:

Again as in the previous example:

TSA = 2πr(r+h)

TSA = 2π× 17(17+3)

TSA = 2π×17×20

TSA = 2136.56 cm2

Example 4: Find the surface area of the cylinder with radius of 6 cm and height of 9 cm.

Solution:

The radius of cylinder: r = 6 cm

The height of cylinder: h = 9 cm

Total surface area of cylinder is therefore:

TSA = 2πr(r + h)

TSA = 12π (6+9)

TSA = 180 π

TSA = 565.56 cm2

Example 5: Find the radius of cylinder whose lateral surface area is 150 cm2 and its height is 9 cm.

Solution:

Lateral surface area of cylinder is given by:

LSA = 2πrh

Given that:

LSA = 150cm2

h = 9cm

π is the constant and its value = 3.14

Substitute the values in the formula and find the value of r by isolating it from the equation:

LSA = 2πrh

150 = 2× π × r × 9

r = 150 / (2×9× π)

r = 2.65cm

So the radius of the cylinder is 2.65 cm.

The lateral surface area of cylinder is 62.8 square units, total surface area is 87.92 square units and 62.8 cubic units is the volume.

a three dimensional shape can be defined as a solid figure or an object or shape that has three dimensions—length, width, and height.

Let us consider the radius of the cylinder is 2 and height of cylinder is 5.

Lateral surface area = 2πrh

Plug in the values of radius and height

=2×3.14×2×5

=62.8 square units.

Total surface area TSA= 2πr(h+r)

=2×3.14×2(5+2)

=2×3.14×2×7

=87.92 square units

Volume of cylinder= πr²h

=3.14×4×5

=62.8 cubic units

Hence, the lateral surface area of cylinder is 62.8 square units, total surface area is 87.92 square units and 62.8 cubic units is the volume.

To learn more on Three dimensional figure click:

https://brainly.com/question/2400003

#SPJ7

The position function s(t) for a particle with acceleration a(t) = 4t - 1, initial velocity v(0) = -3 cm/s, and initial displacement s(0) = 4 cm is s(t) = t^2 - t + 4t + 4 cm.

To find the position function s(t), we need to integrate the acceleration function a(t) with respect to time twice. Given that a(t) = 4t - 1, we first integrate it once to obtain the velocity function v(t). The integral of 4t - 1 with respect to t is 2t^2 - t + C1, where C1 is a constant of integration. Since the initial velocity is v(0) = -3 cm/s, we can substitute t = 0 and v(0) = -3 into the velocity function to find C1. Solving for C1, we get C1 = -3.

Next, we integrate the velocity function v(t) = 2t^2 - t - 3 with respect to t to find the position function s(t). The integral of 2t^2 - t - 3 with respect to t is (2/3)t^3 - (1/2)t^2 - 3t + C2, where C2 is another constant of integration. Using the initial displacement s(0) = 4 cm, we substitute t = 0 and s(0) = 4 into the position function to find C2. Solving for C2, we get C2 = 4.

Therefore, the position function s(t) for the particle is given by s(t) = (2/3)t^3 - (1/2)t^2 - 3t + 4 cm. This function represents the particle's position at any given time t based on its initial velocity, acceleration, and displacement.

Learn more about displacement here:

https://brainly.com/question/11934397

#SPJ11

Answer:

54 cents

Step-by-step explanation:

The cost of bookmarks relating to the number of bookmarks is given by the graph shown. Therefore:

From the graph, we can determine the relationship between the cost of bookmarks and the number of bookmarks by using two points. The equation of a line passing through points \((x_1,y_1)\ and\ (x_2,y_2)\) is:

\(y-y_1=\frac{y_2-y_1}{x_2-x_1} (x-x_1)\\\)

From the graph, y represents the cost of bookmarks in cents and x represent the number of bookmarks. we can see that it passes through the point (2, 30) and (7, 90). Hence:

\(y-30=\frac{90-30}{7-2}(x-2)\\\\y-30=12(x-2) \\\\y-30=12x-24\\\\y=12x+6\)

The cost of 4 bookmarks (x = 4):

y = 12(4) + 6

y = 54 cents

Answer: 30

Step-by-step explanation:

Devon drove 30 miles in 1 hour because 120/4 is 30

Answer:

graph 5 = 3/5x             graph 7 = 3x

Step-by-step explanation: