The length of a rectangle 3yd is less than twice the width, and the area of the rectangle is 14yd^2. Find the dimensions of the rectangle.

Answers

Answer 1

Answer: 4 yd x 3.5 yd

Step-by-step explanation:

A = LW

L = 2x - 3

W = x

14 = (2x - 3)(x)

14 = 2x^2 - 3x

2x^2 - 3x - 14 = 0

(x + 2)(2x - 7)

x = - 2, 7/2 or 3.5 (length cannot be negative)

x = 3.5 (width)

Length

2x - 3

2(3.5) - 3

7 - 3 = 4

Mark as brainliest please TT. Thank you :D

Hope it helps!!!


Related Questions

A school hall has 15rows. There are 35 chairs on each row. How many chairs are in the hall

Answers

Answer:

There are 525 chairs in the hall.

Step-by-step explanation:

35 x 15 = 525

An example to learn this:

35 is the amount of all the chairs in ONE row, when you times 35 by 15, it is DUPLICATING those chairs by 15, equaling to an equal 35 chairs in EACH row! hope this helped.

Find the residual values, and use the graphing calculator tool to make a residual plot. A 4-column table with 5 rows. The first column is labeled x with entries 1, 2, 3, 4, 5. The second column is labeled given with entries negative 3.5, negative 2.9, negative 1.1, 2.2, 3.4. The third column is labeled predicted with entries negative 1.1, 2, 5.1, 8.2, 1.3. The fourth column is labeled residual value with all entries blank. Does the residual plot show that the line of best fit is appropriate for the data? Yes, the points have no pattern. No, the points are evenly distributed about the x-axis. No, the points are in a linear pattern. Yes, the points are in a curved pattern.

Answers

The best answer from the options that proves that the residual plot shows that the line of best fit is appropriate for the data is: ( Statement 1 ) Yes, because the points have no clear pattern

X         Given     Predicted     Residual value

1            3.5           4.06             -0.56

2           2.3           2.09             0.21

3            1.1            0.12               0.98

4           2.2           -1.85              4.05

5          -4.1            -3.82            -0.28

The residual value is calculated as follows using this formula: ( Given - predicted )

1) ( 3.5 - 4.06 ) = -0.56

2) ( 2.3 - 2.09 ) = 0.21

3) ( 1.1 - 0.12 ) = 0.98

4) (2.2 - (-1.85) = 4.05

5) ( -4.1 - (-3.82) = -0.28

Residual values are the difference between the given values and the predicted values in a given data set and the residual plot is used to represent these values .

attached below is the residual plot of the data set

hence we can conclude from the residual plot attached below that the line of best fit is appropriate for the data because the points have no clear pattern ( i.e. scattered )

learn more about residual plots : https://brainly.com/question/16821224

Answer:

A: Yes, because the points have no clear pattern.

Step-by-step explanation:

Edge quiz 100%

Please help me it would mean a lot

Answers

Answer:

44 degrees

Step-by-step explanation:

angle c = 90 degrees

angle a = 46 degrees

the measure of all sides on a triangle is 180

so to solve for the other side we can do this equation...

180 - (90 + 46) = 44

hope this helped, mark as brainliest pls

There are 90 girls and 60 boys in the 6th grade at a middle school. Of these students, 9 girls and 3 boys write left-headed. What percentage of the 6th graders at this middle school write left handed

Answers

Answer:

8%

Step-by-step explanation:

9+3=12 (total number of students that write left handed)

90+60=150 (total number of 6th graders)

12/150 x 100% = 8%

Magnetism: So I need help on this question but please explain how you got the answer so I can learn and better provide evidence :) If you are able to answer this I also am putting a few questions on here for this similar subject for my test and pls explain them all ty!

Answers

Step-by-step explanation:

A) as you can see there is no current flowing in a bar magnet so (incorrect)

B) Lines of magnetic field is going in A-->B direction so it have starting and ending points.(incorrect)

C) Yes whenever a magnetic object is placed near the another magnetic object they either attract or repell so they have a force in a form of push and pull [correct]

D)No because magnetic field lines goes from North--> South so A is the South pole [ incorrect]

E) Yes it will point always towards North pole of the magnet [correct]

F) yes it depends upon the density of field lines[correct]

G)No the near the magnet is it becomes more stronger as compared to magnet kept far.(incorrect)

So option C E F are correct

Hope this helps

Have a great day

could you help me? im confused.

Answers

Answer:

C) Yes, because 1 and 5 are congruent

Step-by-step explanation:

Same-side congruent angles prove this to be true

Answer:

The answer is C

Step-by-step explanation:

This is easy I swear but pls help

Answers

Angle one and two lie on straight line.

this means there sum is equal to 180°

Given :-

angle 1 = 7x angle 2 = x+12

so we can say :-

[tex] \angle1 + \angle2 = 180 \degree \\ 7x + x + 12 = 180 \\ 8x + 12 = 180 \\ 8x = 180 - 12 \\ 8x = 168 \\ x = \frac{ \cancel{168} {}^{ \: \: 21} }{ \cancel8} \\ x = 21 \degree[/tex]

so angle one = 7x= 7×21 = 147°

angle two = x+12 = 21+12 = 33°

distance between 2 points maze amazing mathematics answer key

Answers

I am pretty sure it is 69

Describe fully the single transformation that maps a onto triangle b

Answers

The single transformation that maps a onto triangle b is a rotation of 180 degrees across the common vertex of triangles a and b

How to determine the transformation?

From the figure, we have the following highlights

Both triangles are congruentBoth triangles have one common vertexBoth triangles meet at a right angle. this implies a 180-degree rotation

The above highlights mean that the single transformation that maps a onto triangle b is a rotation of 180 degrees across the common vertex of triangles a and b

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Choose the graph that represents the equation y=3[x+1]+1.

Answers

Answer:

Step-by-step explanation:

Discussion

You haven't given us any choices. Always do that it you have them. Look for the graph that looks like the one below. It has the following characteristics

It opens upwardIt lowest point is -1,1y never equals zeroThe y intercept is 0,4

If Willie does this (equation in image) correctly, what is the value of k?

Answers

Quadratic equation has a leading degrees of 2. The correct equation in vertex form is (x - 3)^2 + 5

Vertex form of a quadratic equation

Quadratic equation has a leading degrees of 2.

Given the quadratic function expressed as:

f(x) = x^2 - 6x + 14

Complete the square

x^2 - 6x + (-3)^2 - (-3)^2 + 14

(x- 3)^2 - 9 + 14
(x - 3)^2 + 5

Hence the correct equation in vertex form is (x - 3)^2 + 5

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3 out of 60 is what percent?

Answers

Answer:

5% is the percetange for 3 out of 60

Answer:

5%

Step-by-step explanation:

you know 10% of 60 is 6. 3 is half of 6, and 5% is half of 10

I hope this helps and have a wonderful day :)

1. Solve the following formulas
a. Solve the formula 8x + y = 15 for y.
b. Solve the formula 9x + y = 13 for y.
c. Solve the formula −4x + y = − 6 for y.
d. Solve the formula −5x + y = − 1 for y.

Answers

[tex]\textbf{a)}\\\\~~~~~~8x+y = 15\\\\\implies y = 15-8x\\\\\textbf{b)}\\\\~~~~~~9x+y = 13\\\\\implies y = 13 -9x\\\\\textbf{c)}\\\\~~~~~-4x+y = -6 \\\\\implies y = 4x -6 \\\\\textbf{d)}\\\\~~~~~-5x +y = -1\\\\\implies y = 5x -1[/tex]

Step-by-step explanation:

1. 8x+y=15

y=15-8x

2. 9x+y=13

y=13-9x

3. -4x+y=-6

y=4x-6

4. -5x+y=-1

y=5x-1

Please Help I Don't Understand!

Answers

Answer:

A. 4.

Step-by-step explanation:

The scale factor is 4.

If you multiply 8, 5, and 2 by 4, you get 32, 20, and 8.

15+6=33m-21-27m

combining like terms (show work)

Answers

Answer:

[tex]m = \boxed 7[/tex]

Combine like terms

[tex]21=33\cdot \mathrm{m}-21-27\cdot \mathrm{m}[/tex]

Group like terms

[tex]21=\left(33\cdot \mathrm{m}-27\cdot \mathrm{m}\right)-21[/tex]

Simplify the arithmetic

[tex]21=6\cdot \mathrm{m}-21[/tex]

Swap sides

[tex]6\mathrm{m}-21=21[/tex]

(Please someone help me!) (No links!)
What do I put?

Answers

<m(lkj)+<m(ghi)=180°

34°+<m(ghi)=180°

180°-34°=<m(ghi)

146°=<m(ghi)

If a fair die is rolled 6 times, what is the probability, rounded to the nearest
thousandth, of getting at least 4 twos?

Answers

The probability of rolling the die once to get a four is 1/6

So we do 1/6*1/6*1/6 which is 1/216 since it's combined probabilities

Hope this helped

best answer gets brainly ^^ !!

Answers

Answer:

(6, 0)

Step-by-step explanation:

Coordinates are written in the form (x, y), where x is the x-axis value that the point is in, in this case 6, and where y is the y-axis value, in this case 0.

Hi!

Answer:

(6, 0)

Step-by-step explanation:

Coordinate point "G" on this graph is on the very bottom. On the X axis, point G is on the 6. On the Y axis, its on the 0, so since the domain, (X) comes first before the range, (Y), you get (6, 0)

I hope this helped! Have a wonderful day! :)

A researcher is interested in whether using mental imagery can help people remember specific details when given information. To conduct the experiment, the researcher asks 100 volunteers to participate. The researcher places everyone’s name in a hat and randomly selects 50 names, making sure to sure to mix the names between each selection.

Which component is missing from the researcher’s process?

The researcher did not use enough randomization in the process.
The researcher used volunteers instead of randomly selected people from the population.
The researcher did not assign the 50 names to the treatment group or the control group.
The researcher should have used numbers instead of names for confidentiality reasons.

Answers

The researcher ought to have divided the volunteers into two groups; the treatment group and the control group at random.

What is scientific method?

The scientific method must include the tools of observation, experimentation and conclusion.

In this case, the researcher ought to have divided the volunteers into two groups; the treatment group and the control group at random.

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What is 8 3/4 as a whole number

Answers

Answer:

9

Step-by-step explanation:

8 3/4 to the nearest whole number is 9

Help can you help me with angles please >﹏<

Answers

130°

hope it helps:))
Answer:  130

===========================================================

Explanation:

There are two approaches here.

Method 1

Focus on the numbers along the top only.

The left arrow points at 50 while the arrow on the right points at 180. Subtract these numbers to get 180 - 50 = 130

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

Method 2

Focus on the numbers along the bottom row this time.

The left arrow points at 130 and the right arrow points at 0

The difference of which is 130 - 0 = 130

Because we're subtracting off 0, it means we can simply look at only one number without having to do any math. This only works if the other portion of the angle is pointing at 0 or 180.

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

Notice that 130 degrees is larger than 90, so this angle is obtuse. This means that if you aren't sure whether to go with 50 or 130, it will depend on if it's acute or obtuse.

- The spinner shown is spun 4 times. What is the probability that you will spin gray at least 2 times?​

Answers

Answer:

26.17%

Step-by-step explanation:

P(Grey) = 1/4

P(Grey at least 2 times in 4) = 1 - P(no Grey in 4) - P(1 Grey in 4)

P(no Grey in 4) = 4C0 * 3/4 * 3/4 * 3/4 * 3/4 = 81/256

P(1 Grey in 4) = 4C1 * 1/4 * 3/4 * 3/4 * 3/4 = 27/64

P(Grey at least 2 times in 4) = 1 -  81/256 -  27/64 = (256-81-108)/256=67/256=26.17%

What is the value of x when 1/4x=14 3/4 ?

Answers

x=89 wishebwwi akaia Aisha a

Answer:

x = 59

Step-by-step explanation:

[tex]\frac{1}{4}[/tex] x = 14 [tex]\frac{3}{4}[/tex] ← convert to improper fraction

[tex]\frac{1}{4}[/tex] x = [tex]\frac{59}{4}[/tex] ( multiply both sides by 4 to clear the fractions )

x = 59

Don't worry about the x and w, I just need the answer to y. Find the value of y if JKLM~PQRS

Answers

Answer:

y = 15

Step-by-step explanation:

JKLM ~ PQRS means that quadrilateral JKLM is similar to quadrilateral PQRS.

In similar shapes the corresponding sides have same ratio and the corresponding angles are congruent.

This means angle J is congruent to angle P, K is congruent to Q, L is congruent to R and M is congruent to S. Order of the vertices matters.

Solving for y.

Angle J is congruent to angle P.

5y - 4 = 71 Add 4 on both sides.

5y = 71 + 4

5y = 75  Divide both sides with 5.

y = 15

(Btw your solution for x is wrong.)

3/5 x 3/5

PLEASE SHOW YOUR WORK IT REALLY HELPS :)

Answers

Answer:

9/25

Step-by-step explanation:

3x3 is 9 and 5x5 is 25 so that would equal to 9/25

Answer:

9/25

Step-by-step explanation:

first you do 3x3=9

                   5x5

                   9

                 5x5=25

9/25 is your answer :)

the spinner below is spun three times, find all possible outcomes. the spinner has 12 numbers

Answers

For the spinner with 3 sectors, the total number of outcomes for 3 spins is 27.

What is the combination?

A combination is a mathematical technique that determines the number of possible arrangements.

Let's we have to define

A, B, and C, as the regions in the spinner.

So, we spin it 3 times, and for each of these times there are 3 outcomes, so the outcomes will be of the form:

The outcome of spin 1, the outcome of spin 2, outcome of spin 3.

The total number of  different outcomes will be:

3^3 = 27

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Find the equation of the line that
is parallel to y = -5x – 9 and
contains the point (-3, -3).
=
-
y = [? ]X + [ ]

Answers

Answer:

see photo attached for detailed information

Step-by-step explanation:

HELP ASAP PLEASEEE!!!!!!!!!

Answers

Answer:

all the answer choices are correct

Step-by-step explanation:

reflections & rotations dont change any of the angle measures

Javon is in a 30% tax bracket for his federal income tax. If the amount of money that he paid for federal income tax was $21,000, what was his taxable income?

Answers

Answer:

Step-by-step explanation:

Find the y-intercept of the line on the graph.
Enter the correct answer.

Answers

Check the picture below.

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