Dora says that of all the possible rectangles with the same area, the rectangle with the largest perimeter will have two side lengths that are 1 unit does her sentment make sense?

Answers

Answer 1

Answer:

  maybe

Step-by-step explanation:

Dora is apparently assuming the dimensions are integers. In that case she is correct.

If the dimensions are unconstrained, the perimeter will be largest when a pair of opposite sides will be the smallest measure allowed.

For some perimeter P and side length x, the area is ...

  A = x(P/2 -x)

Conversely, the perimeter for a given area is ...

  P = 2(A/x +x)

This gets very large when x gets very small, so Dora is correct in saying that the side lengths that are as small as they can be will result in the largest perimeter. We have no way of telling if her assumption of integer side lengths is appropriate. If it is not, her statement makes no sense.


Related Questions

plz solve ziz m−4+m−5

Answers

Answer:

m - 4 + m - 5

= m + m - 4 - 5

= 2m - 9

The answer is 2m - 9

3x^2-6×=0 solve for x factor if necessary

Answers

Answer:

x =0    x=2

Step-by-step explanation:

3x^2 -6x = 0

Factor out a 3x

3x(x -2)=0

Using the zero product property

3x = 0  x-2 =0

x =0    x=2

What is the slope of the line that passes through the points (-2,-5) and
(-3, -6)? Write your answer in simplest form.​

Answers

Answer:

slope = 1

Step-by-step explanation:

Calculate the slope m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (- 2, - 5) and (x₂, y₂ ) = (- 3, - 6)

m = [tex]\frac{-6-(-5)}{-3-(-2)}[/tex] = [tex]\frac{-6+5}{-3+2}[/tex] = [tex]\frac{-1}{-1}[/tex] = 1

Find the range of p in equation p(x+1) (x-3)=x-4p-2 has no real roots. ​

Answers

Answer:

[tex]\displaystyle p > \frac{1}{4}[/tex].

Step-by-step explanation:

Expand the left-hand side of this equation:

[tex]p\, (x + 1)\, (x - 3) = p\, \left(x^2 - 2\, x - 3\right) = p\, x^2 - 2\, p\, x - 3\, p[/tex].

Collect the terms, so that this quadratic equation is in the form [tex]a\, x^2 + b\, x+ c = 0[/tex]:

[tex]p\, x^2 - 2\, p\, x - 3\, p = x - 4\, p - 2[/tex].

[tex]p\, x^2 - (2\, p + 1)\, x + (p + 2) = 0[/tex].

In this equation:

[tex]a = p[/tex].[tex]b = -(2\, p + 1)[/tex].[tex]c = p + 2[/tex].

Calculate the quadratic discriminant of this quadratic equation:

[tex]\begin{aligned}b^2 - 4\, a\, c &= (-(2\, p + 1))^2 - 4\, p\, (p + 2) \\ &= 4\, p^2 + 4\, p + 1 - 4\, p^2- 8\, p = -4\, p + 1\end{aligned}[/tex].

A quadratic equation has no real root if its quadratic discriminant is less then zero. As a result, this quadratic equation will have no real root when [tex]-4\, p + 1 < 0[/tex]. Solve for the range of [tex]p[/tex]:

[tex]\displaystyle p > \frac{1}{4}[/tex].

can someone please help a guy out? and ASAP. i'm really tired and i've been trying to get this done for months but i cannot understand it in the slightest. whoever can help out will get marked as brainliest ♥


[any other info will be linked as images]


-----------------------------------------------------------------------------


1.) Which variable did you plot on the x-axis, and which variable did you plot on the y-axis? Explain why you assigned the variables in that way.

2.) Write the equation of the line of best fit using the slope-intercept formula y = mx + b. Show all your work, including the points used to determine the slope and how the equation was determined.

3.) What does the slope of the line represent within the context of your graph? What does the y-intercept represent?

4.) Test the residuals of two other points to determine how well the line of best fit models the data.

5.) Use the line of best fit to help you to describe the data correlation.

6.) Using the line of best fit that you found in Part Three, Question 2, approximate how tall is a person whose arm span is 66 inches?

7.) According to your line of best fit, what is the arm span of a 74-inch-tall person?

Answers

Answer:

1) On the x-axis, the arm span is plotted. On the y-axis, the height is plotted. It is chosen to be that way because the numbers on that have been assigned on the x-axis increase and decrease in a small amount, while the numbers on the y-axis increase and decrease in a huge amount.

2) (lolz i cant show u my work but i will try my best with explanations even tho ian allat.) So, Using the slope formula, I got a the equation y=x+15. The equation was determined with the formula m=y2-y1/x2-x1. The points that were used included (37,40) and (47,50). After finding the slope, I did the best guess for the y-intercept, which is known as b in y=mx+b.

3) The slope of the line represents the time it takes for the arm span and the height. The y-intercept represents the height that the arm span starts developing or gets bigger.

4) It fits perfectly

5) The data is pretty inconsistent.

6)  About 68-69 inches tall

7)About 71-72 inches wide

yeo u had my brain work after this

Step-by-step explanation:

Answer:

other person is correct

Step-by-step explanation:

Please answer correctly !!!! Will mark brainliest !!!!!!!!!!!!!!

Answers

Step-by-step explanation:

Adding 10 to both sides of the original equation gets us q = 6(r + 1) + 10. Since q is equal to h(r), we get h(r) = 6(r + 1) + 10 = 6r + 16.

Find the selling price of an $70 item after a 30% markup.

Answers

Answer:

70/100*130= $91

Step-by-step explanation:

Answer:

$91

Step-by-step explanation:

CP= $70

Markup= 30%

SP= $70 +30%= $70*1.3= $91

what is the value of n in the equation 4n + 5 = 17​

Answers

Answer:

n=2

Step-by-step explanation:

4 times 2 equals 12. And 12 plus 5 equals 17.

Answer: n=3

Step-by-step explanation: 4n+5=17

17-5

4n=12/4

N=3

Hannah is putting border on the
walls of her bedroom. Her room
is 14 feet long and 10 feet wide.
She bought 50 feet of border.
Will she have enough for
each wall?
How do you know?

Answers

Answer:

yes she will

Step-by-step explanation:

just find the perimeter

14+14+10+10 or (14*2)+(10*2)

the add and you get 48 feet

48<50

Hope this helps

Which are vertical angles? Check all that apply. ∠EAB and ∠BAC ∠EAB and ∠CAD ∠CAD and ∠FAE ∠CAB and ∠DAE ∠DAC and ∠DAE

Answers

Answer:

<CAB and <DAE are vertical angles

<EAB and <CAD are vertical angles

Step-by-step explanation:

this is because they are formed by the prolongation of the sides of the other angles and are opposite to them on the other side of the vertex.

Options B and D are correct. The vertical angles are ∠CAD and ∠BAE AND ∠EAB and ∠CAD.

Vertical angles are angles that are opposite to each other in line geometry. The size of the angles must be the same.

According to the diagram shown, we can see that ∠CAD and ∠BAE are opposite to each other with similar measures.

This means that both angles are vertically opposite. he same is applicable to ∠EAB and ∠CAD.

Hence the vertical angles are ∠CAD and ∠BAE AND ∠EAB and ∠CAD.

Learn more here: https://brainly.com/question/13458452

Match the vocabulary word to its correct definition. 1. abscissa the variable representing the first elements of the ordered pairs in a function; the inputs 2. dependent variable the second number (or y value) of an ordered pair 3. independent variable the variable representing the second elements of the ordered pairs in a function; the outputs 4. ordinate the first number (or x value) of an ordered pair

Answers

Answer:

1. Independent variable

2. Ordinate

3. Dependent variable

4. Abscissa

Step-by-step explanation:

1. The variable representing the first elements of the ordered pairs in a function; the inputs: this is the independent variable or the predictor variables.

2. The second number (or y value) of an ordered pair: Ordinate, also known as the y coordinate

3. the variable representing the second elements of the ordered pairs in a function; the outputs: the dependent variable also known as the response variables or the outcome variables.

4. The first number (or x value) of an ordered pair: abscissa, also called the x coordinate

Answer:

1. the first number (or x-value) of an ordered pair

4

ordinate

2. the variable representing the second elements of the ordered pairs in a function; the outputs

3

independent variable

3. the variable representing the first elements of the ordered pairs in a function; the inputs

2

dependent variable

4. the second number (or y-value) of an ordered pair

1

abscissa

Step-by-step explanation:

I need help What is 3x - 4 = 13

Answers

Answer:

5 2/3

Step-by-step explanation:

3x-4=13

    +4  +4

Add 4 to -4 and 13.

If you add a positive # to a negative one you get a positive number so -4+4 is 0

3x=17

divide 3 and 17

you get 5 2/3

If f(x)=2x^2+5 √(x-2)
What does f(3)=?

Answers

f(3) = 2*3^2 + 5 √(3-2)
f(3) = 2*9 + 5 √1
f(3) = 18 + 5
f(3) = 23

Please answer as soon as possible, whoever is first gets the brainliest

Answers

Answer:

I'm not sure what to do here

Step-by-step explanation:

find K if the sum of the zeros of the polynomial x square - (K + 6 ) x + 2( 2 k - 1) is half the product​

Answers

k=7

given a quadratic polynomial

ax^2+bx+c

the sum of the roots is given by -(b/a)

and the product of the roots as (c/a)

hence we get sum of roots as -(-(k+6)/1) and product of roots as (2(2k-1))/1

since the sum is equal to half the Product then we get

k+6=2k-1 and solving for k we get 7

4sqrt2(sqrt6-3sqrt24)

Answers

Answer:

-40\sqrt{3}

-.69.282

Step-by-step explanation:

Someone answer the whole thing fast plz

Answers

Answer:

y = 2x + 54

Step-by-step explanation:

slope of equation:

(y2-y1)/(x2-x1)

= (72-58)/(9-2)

= 14/7

= 2

y = 2x + b

58 = 2(2) + b

58 = 4 + b

b = 54

The last 2 questions please help me help me please I need help

Answers

Answer:

3. 12.5π + 100

6. 25π + 250

Step-by-step explanation:

3. So you can first calculate the area of the square, which is 100.

Then you have to calculate the semicircle.

You can see that the diameter is 10.

The radius is 5.

The area of the semicircle is 12.5π

Total area is 12.5π + 100

6. You have a one rectangle and two semicircles.

You can calculate the area of the semicircles first.

25π

Then, you have to see how much the width of the rectangle is.

You can see that the total width is 35, and the radius of each semicircle is 5.

35 - 5 - 5 = 25

The width is 25 so the area of the rectangle is 250.

The total is 25π + 250.

Combine like terms to create an equivalent expression.

-2/3a+5/6a-1/6

Answers

Answer:

The answer is [tex]\frac{1}{6}a - \frac{1}{6}[/tex] .

Step-by-step explanation:

Solve the following equation:

[tex]-\frac{2}{3}a + \frac{5}{6}a - \frac{1}{6}[/tex]

Combine [tex]-\frac{2}{3} a[/tex] and [tex]\frac{5}{6} a[/tex] :

[tex]-\frac{2}{3}a + \frac{5}{6}a - \frac{1}{6}[/tex]

[tex]\frac{1}{6}a - \frac{1}{6}[/tex]

So, the answer is [tex]\frac{1}{6}a - \frac{1}{6}[/tex] .

Answer:

1/6a-1/6

Step-by-step explanation:

Which equation matches the graph?

A. y - 2= 3(× -2)
B. y - 2= 3(×+2)
C. y + 2= -3(×+2)
D. y - 2= -3(x-2)

Answers

Cnsndjdjdkdkkdkdododododooopaospdppf
My guess would probably be A !

szdfxgthyjunmklhjuxcgtfrhyuji

Answers

Hi!

The negative signs cancel out iin the equation to make a positive 7.

The 4 is already positive.

So that makes it 4 + 7!

Or 7 +4!

Answer choice A.

Hope this helps!

simplify sqrt of -100

Answers

Answer:

There is no answer to any square root to a negative number

Step-by-step explanation:

pls help ASAP for brainliest answer

Answers

Answer:

396cm^3

Step-by-step explanation:

The formula for calculating volume of triangular prism is 1/2×bhl (b: base, h : height, l : length)

1/2 × 9 × 11 × 8 = 396cm^3

-4.5(r-2)+3.3 please help

Answers

Answer:

-4.5r + 12.3

Step-by-step explanation:

Multiply -4.5(r-2)

-4.5r + 9 + 3.3

Add 9+3.3=12.3

-4.5r + 12.3

Hope this helps plz mark brainliest

which table represents a linear function

Answers

Answer:

the forth one is linear

Step-by-step explanation:

I think it’s a or b?

what is 20 plus 20.

Answers

Answer:

Step-by-step explanation:

40

Answer:

40

Step-by-step explanation:

 20              

20

+-----

zero plus zero is zero

two plus two is four

40

0.441 to its standard form

Answers

Answer:

erm

Step-by-step explanation:

4.41 times 10^-1

4(-8x + 5) -(-33x -26)

Answers

Simplifying
4(-8x + 5) = -32x + -26

Reorder the terms:
4(5 + -8x) = -32x + -26
(5 * 4 + -8x * 4) = -32x + -26
(20 + -32x) = -32x + -26

Reorder the terms:
20 + -32x = -26 + -32x

Add '32x' to each side of the equation.
20 + -32x + 32x = -26 + -32x + 32x

Combine like terms: -32x + 32x = 0
20 + 0 = -26 + -32x + 32x
20 = -26 + -32x + 32x

Combine like terms: -32x + 32x = 0
20 = -26 + 0
20 = -26

Solving
20 = -26

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

Kamal has big feet. Kamal's mom says she wouldn't be surprised if he grew to be 7 feet tall! Kamal's new shoes came in a box that measures 16 inches by 9 inches by 6 inches. What is the volume of the shoebox?

Answers

Answer:

864

Step-by-step explanation:

V=lwh

=16×9×6

=864 inches

Answer:

864 is the volume

Step-by-step explanation:

You can find the answer by applying the volume formula Length x Width x Height.

16x9x6=  864

It does not matter in which way you put the order of length, width and height.

What is the inverse of the function f(x) = 2x + 1?
CO
1
h(x) =
Ex-
1
h(x) =
Y+
h(x) =
h(x) =
3x + 2
Save and Exit

Answers

Answer:

I am hoping for this to be correct

Other Questions
Find the volume of a cylinder 10mi and 22mi Whoever has read chapter 27 of "to kill a mockingbird" please tell me how that chapter made you feel after you read it and what part of the chapter was interesting to you? please answer this, I REALLY need this and i'm on a time limit please help me out here! I NEED HELP ITS ON FUNCTIONS! HELPPPPPPPPPPPExplanation needed Mindy used 160 beads to make 25% of the bracelets needed for her friends. How many bracelets does she need to make all her friends bracelets? PLZ HELP ME I CAN'T FAIL!!!Social Media for Studentsby K. Fletcher Today, social media has become an essential part of an individual's life. From reading about current events to discussing a TV show's latest episode with friends, everything is now done on social media. A few years ago, only a handful of social media sites existed, which people hardly used. Now, the Internet is cluttered with social media sites ranging from those that let people share photos and videos to those that allow people to broadcast their thoughts and experiences live. Today, social networking sites are very popular. This is because a large number of people have accounts on all social media sites, and they are usually online throughout the day. According to a survey conducted by a research center, 94% of teens use cellphones to go online at least once daily in America. Further, this research center concludes that around 56% of these teens go online several times a day. Most teens spend time online browsing through social media sites, reading people's posts or looking at pictures and watching videos. One of the positive aspects of teens spending more time on social media is that they can be contacted at any time of the day. Modern educators are interested in integrating social media in classroom learning. Students can get in touch with teachers anytime if they are inquisitive about a certain topic or have questions about what they recently learned in the classroom. This also helps teachers know that students are interested and have been paying attention in the classroom. Teachers can create a group on social media and add their students to the group. They can post links and videos for their students and encourage them to share their observations with others. In this way, the entire class can view information with a single click. This can ensure that students are prepared for a class beforehand and that teachers do not have to restate the same information. Social media can help students contact each other when they need help. Class projects, group assignments, or homework-related inquiries can be easily resolved on social media groups. Social media can also help parents keep track of their child's progress at school. Since classrooms are being modernized by combining technology with traditional resources, social media should be considered as a practical tool to educate students and spread knowledge.How does the author develop the central idea that social media can benefit both students and teachers? A. by emphasizing how students and teachers make use of social media to understand certain topics better B. by describing in detail how teachers and students can use social media sites to share ideas and information C. by describing in detail the current trend of teachers creating online classrooms on social media D. by emphasizing the fact that social media sites will be more popular with students over the years "the sight of the food maddened him". what does this suggest? what compelled the young seagull to finally fly.In a lesson tiger in the zoo. In the United States what fraction of people die from cancer ? Which two factions disagreed on the revolutions path?. Please I need help ASAP Re-Tire produces bagged mulch made from recycled tires. Production involves shredding tires and packaging the pieces for sale in the bagging department. All direct materials enter in the first process. The following describes production operations for October Direct materials used Direct labor used 30% in Shredding; 70% in Bagging. Predetermined overhead rate (based on direct labor) Transferred to Bagging Transferred to finished goods $234,000 $121,000 165% S205,500 $590,000 The company's revenue for the month totaled $470,000 from credit sales, and its cost of goods sold for the month is $254,000. Prepare summary journal entries dated October 31 to record its October production activities for (1) direct materials usage, (2) direct labor incurred (3) overhead applied, (4) goods transfer from Shredding to Bagging, (5) goods transfer from Bagging to finished goods, (6) credit sales, and (7) cost of goods what conditions allow fascists to gain power more easily given:F(x)=2x and G(x) =X^2+2 find F/G(-1) A)-2/3 B)-2C)2/3 240 people are going to a charity event 3/5 of the guests have ordered chicken for their meals of the remaining guests 12.5% have ordered gluten free meals how many people haven't ordered their meals yet? Which of the following is a source of visible light?A) a catB) a sofaC) a lampD) a plant What is your interpretation of Dr. Kenny? A. Dr. Kenny helps Rukmani and her daughter have children, but he cannot understand the poor conditions in which the villagers live. B. Dr. Kenny helps Rukmani and her daughter have children, but he cannot understand the rich conditions in which the villagers live. C. Dr. Kenny does not help Rukmani and her daughter have children, but he cannot understand the poor conditions in which the villagers live. D. Dr. Kenny does not help Rukmani and her daughter have children because he cannot understand the rich conditions in which the villagers live. True or Falseattention span.A Gallup Poll is a survey done to measure people's attention span simplify (3x^2)^6 PLZ I NEED IT FAST! I WILL GIVE BRAINLIEST! Explain how you can solve the following scenario in two different ways. I owe my friend $16 and my mom owes me $25. how much money will I have after all is settled? All of the following are equivalent to 3:8 = x : 32 except8 : 3 = 32 : x3 : x = 8 : 32x : 8 = 3 : 328 : 32 = 3 : x Q-) Walk slowly .................. you should fall.A-) Lest B-) Otherwise.C-) If D-) Or Which one is true?