Can someone please help me with this math problem? Please.



Simplify the expression:(2x-3y)^2/(3y-2x)^2 Ava simplified the expression and said that the value is -1. (2x-3y)^2/(3y-2x)^2 (2x-3y)^2/-(2x-3y)^2 and then she has both of them crossed out (2x-3y)^2/-1(2x=3y)^2 =-1 Is Ava's solution correct? If not, find and explain her mistake. Give the correct solution.

Answers

Answer 1

Answer:

Ava is incorrect

Step-by-step explanation:

Given

[tex]\frac{(2x - 3y)^2}{(3y - 2x)^2}[/tex]

[tex]Ava: \frac{(2x - 3y)^2}{(3y - 2x)^2} = -1[/tex]

Required

Determine if Ava is correct or not

Ava's solution is incorrect and the proof is as follows;

[tex]\frac{(2x - 3y)^2}{(3y - 2x)^2}[/tex]

Apply the following law of indices;

[tex]\frac{a^n}{b^n} = (\frac{a}{b})^n[/tex]

[tex]\frac{(2x - 3y)^2}{(3y - 2x)^2} = [\frac{2x - 3y}{3y - 2x}]^2[/tex]

Rewrite the numerator

[tex]\frac{(2x - 3y)^2}{(3y - 2x)^2} = [\frac{-(3y - 2x)}{3y - 2x}]^2[/tex]

Cross out the common factor of the numerator and denominator

[tex]\frac{(2x - 3y)^2}{(3y - 2x)^2} = [\frac{-1}{1}]^2[/tex]

[tex]\frac{(2x - 3y)^2}{(3y - 2x)^2} = [-1]^2[/tex]

[tex]\frac{(2x - 3y)^2}{(3y - 2x)^2} = 1[/tex]

Hence, the solution is 1; not -1

Her mistake is that, she did not apply the square on -1, after she factorize the denominator

Answer 2

Answer:

incorrect

Step-by-step explanation:


Related Questions

Josh used one hundred dollars less than three-fourths of his paycheck to buy a new N. it the cost of
the new TV was $488, how much was his paycheck?

Please don’t put the answer in a link.

Answers

Answer:$175

Step-by-step explanation:

The amount of his paycheck would be $ 784.

What is the solution for an equation?

The solution of an equation refers usually to the values of the variables involved in that equation which if substituted in place of those variable would give a true mathematical statement.

WE have been given that Josh used one hundred dollars less than three-fourths of his paycheck to buy a new N the cost of the new TV was $488.

Let P = pay amount

3/4 P  -100  = 488    

Now add 100 to both sides of the equation

3/4 P  = 588            

Then multiply both sides of the equation by 4/3;

P =  $ 784

The amount of his paycheck would be $ 784.

Learn more about solving equations here:

https://brainly.com/question/13072448

#SPJ2

A group of scientists wants to investigate if they can predict the life expectancy of mammal species given
its average heart rate. The table below shows the relationship between average heart rate (in beats per
minute) and life expectancy (in years) for a sample of mammals.
Whale
Elephant
Horse
Lion
Sheep
Pig
Average heart rate (BPM)
20
30
34
50
75
95
Life expectancy (years)
70
70
40
13
15
25
All of the scatter plots below display the data correctly, but which one of them displays the data best?
By convention, a good scatter plot uses a reasonable scale on both axes and puts the explanatory variable on the
x- axis

Answers

Answer:

GRAPH B

Step-by-step explanation:

I GOT IT CORRECT ON KAHN!!!!

hi again :) it's me again

Answers

Answer:

Heyyy

Step-by-step explanation:

Hiiiiiiiiiiiiiiiiiiiiiiiiii

Find and interpret the standard deviation of the set of data. 7. {6, 8, 2, 3, 2, 9}​

Answers

Answer:

3.1

Step-by-step explanation:

What are the solutions for 4x^2+81=36x

Answers

The answer is x= 9/2

Find the value of y when x= 7.
y=-4x

Answers

Answer:

y = -28

Step-by-step explanation:

y=-4x

Let x=7

y = -4*7

y = -28

Y= -4x
First enter in the 7 as X
Y = -4 (7)
You will then multiply -4 • 7 [the “•” is another way or saying multiply just use it so you won’t get the symbol and X confused]

Once you have multiples the answer will be

Y = -28

An arc has a central angle of 2/5 pi and a length of 6 pi. What is the circumference of the circle?

Answers

Answer:

15 pi.

Step-by-step explanation:

2/5=6/x

x=15

This is how I would answer it, but there is an error with the question. The measure of the central angle of an arc is supposed to be equal to the length of the arc.      

-3×4y = (4+5y)-72 answer fast with steps plz

Answers

Answer:

-12y=5y-68     true for all X

Step-by-step explanation:

-3x4y=(4+5y)-72

simplify:

-3x4y=12y

simplify:

(4+5y)-72

remove parentheses:

4+5y-72

subtract the numbers:

4-72= -68

=5y-68

-12y=5y-68

Answer:

the answer would be 4

Step-by-step explanation:

−3(4y)=4+5y−72

−12y=4+5y+−72

−12y=(5y)+(4+−72)(Combine Like Terms)

−12y=5y+−68

−12y=5y−68

Step 2: Subtract 5y from both sides.

−12y−5y = 5y−68−5y

−17y= −68

Step 3: Divide both sides by -17.

−17y                    -68

------------       =   -----------

-17                        -17

y = 4

pls pls pls, I beg you to answer this question only if you know the correct answer please please please I beg you

Answers

Answer:

2) -47, 33, -243, 907, -88

4) C & D

5) 30, 45, 0, -10

6) B

Answer:

1.)-47

33

-243

907

-88

2.)c, d

3.)Lighthouse=45

20. A construction company is hired to resurface a straight section of road.
• The section is 100 yards long and 18 feet wide.
• The company's truck can haul 250 cubic feet of gravel per load.
What is the minimum number of truckloads required to completely cover the section of
road to a depth of 6 inches?
A 3
B. 4
C.
10
D. 11

Answers

Answer:D

Step-by-step explanation:

Convert 100 yards to feet, which becomes 300 feet.

6 inches into feet, 0.5 feet.

18 feet times 300 feet times 0.5 feet is 2700 cubic feet.

Divide 2700 by 250 and you get 10.8. Meaning, you need 11 trucks since there is a remaining 0.8.

The minimum number of truckloads required to completely cover the section of road to a depth of 6 inches should be 11.

Calculation of the minimum number:

Since

The section is 100 yards long and 18 feet wide. The company's truck can haul 250 cubic feet of gravel per load.

So here first we have to convert 100 yards to feet so it should be 300 feet.

Now 6 inches into feet should be 0.5 feet

Now the total be like

= [tex]18 \times 300 \times 0.5[/tex]

= 2700

Now the minimum number should be

= [tex]2700 / 250[/tex]

= 10.8

= 11

Learn more about number here: https://brainly.com/question/24585170

Do you see a trend on this scatter plot ?

Answers

I need to see the scatter plot to answer the question

help please i’ll really appreciate it

Answers

Answer: I believe its 64 cubic in

Step-by-step explanation:

ASAP PLEASE HELP!!!!

Answers

it’s like 20 or something

will 5 star worth 76pts

Answers

Answer:

i can't see anything

Step-by-step explanation:

Find the 15th term of the arithmetic sequence x + 3, – X – 1, -3x – 5,...

Answers

Answer:

-53-27x

Step-by-step explanation:

Answer attached...

Hope it helps :)

Hi there! please please help:)) have a good day

Answers

Answer:

b

Step-by-step explanation:

sorry if wrong dont report

Answer:

can barely read the graph luv :(

Find mMK................

Answers

Answer:

Approximately mMK is 53 degrees

Step-by-step explanation:

Here, we want to find the length of MK

As we can see, we have a right triangle at LNK

so

let us find the angle at L first

9 is adjacent to the angle at L and also, 15 is the hypotenuse of the angle at L

so the trigonometric identity that connects adjacent to the hypotenuse is the cosine

It is the ratio of the adjacent to the hypotenuse

So;

cos L = 9/15

L = arc cos (9/15)

L = 53.13 degree

Approximately, L = 53 degrees

so now, we want to get the arc length MK

We are to use the angle-arc relationship here

Using this; arc length MK is equal to the measure of L at the center which is 53 degrees

I really need help with this question

Answers

Answer:

where is it at

Step-by-step explanation:

sheeeeeeesh

Fill in the factor:
11 × ___=99

Answers

Answer:

9

Step-by-step explanation:

11 × 9 = 99

WILL GIVE BRAINLIEST PLEASE HELP
:)

You decide to take a trip to Japan to see Mt. Fuji in person. But while you are there, you can bring back some of those rectangular watermelons you’ve heard so much about. Now, you’re packing for your trip. You have two small bags. In order for you to carry a bag on the plane, it must fit inside the Carry-on Baggage Check Box. The Carry-on Baggage Check Box has dimensions of approximately 22" x 14" x 9". Your leather bag has a height of 18 inches, a depth of 12 inches, and a width of 8 inches. Your canvas bag has a height of 18 inches, a depth of 15 inches, and a width of 10 inches.

1. What is the volume of the Carry-On Baggage Check Box?
2. What is the volume of the leather bag?
3. What is the volume of the canvas bag?
4. Which bag will definitely fit into the Check Box? Explain.

Answers

Answer:

You have my profile picture

Step-by-step explanation:

Answers:

1. The volume of the carry-on baggage check box is 2772 inches³

2. The volume of the leather bag is 1728 inches³.

3. The volume of the canvas bag is 2700 inches³.

4. The leather bag will definitely fit into the check box.

Hope this helps!

When answering, make sure to put the units, which is inches cubed, which you always use for finding the volume of a figure.

Happy learning,

Applepi101

Used to coordinate gird plane to find a distance between the points round to the nearest hundred

Answers

Answer:

8.94

Step-by-step explanation:

Distance formula:

[tex]d = \sqrt{(x_2 - x_1)^2 + (y_2-y_1)^2}[/tex]

[tex]d = \sqrt{(3 - (-5))^2 + (2-6)^2}[/tex]

[tex]d = \sqrt{(64 + 16)}[/tex]

[tex]d= \sqrt{80}[/tex]

[tex]d= 8.94[/tex]

A grab-bag contains 30 packages worth $.65 each, 10 packages $.60 cents each, and 15 packages worth $.30 each. What is the expected value if you have to pay $.50 to pick one package at random?

Answers

Answer:

Expected value of package = $0.04 (Approx.)

Step-by-step explanation:

Given:

30 packages at $0.65 each

10 packages at $0.60 each

15 packages at 0.30 each

Pick up price for random one = $0.50

Find:

Expected value of package

Computation:

Total cost of 30 package = 30 x 0.65

Total cost of 30 package = $19.5

Total cost of 10 package = 10 x 0.60

Total cost of 10 package = $6

Total cost of 15 package = 15 x 0.30

Total cost of 15 package = $4.5

Total cost = 19.5 + 6 + 4.5

Total cost = $30

Cost of random package = 30 / [30+10+15]

Cost of random package = $0.54

Expected value of package = 0.54 - 0.50

Expected value of package = $0.04 (Approx.)

I NEED HELP PLEASE- ‼️‼️‼️

Answers

Answer:

18x^2 - 30x

Step-by-step explanation:

Distribution:

You just have to distribute 6x by each term in the parenthesis.

Equation: 6x(3x-5)

(You can also think of it as: 6x * 3x + 6x * -5)

18x^2 - 30x

This is as simplified as can it can be.

(You can’t add terms that have different variables, seeing as the first term has x^2 and the second one only has x).

3/4y+6=0 steps in order

Answers

Answer : y = - 8

3/4y+6=0

Step 1: Subtract 6 from both sides :

3/4y + 6 - 6 = 0 - 6

3/4y = -6

Step 2: Multiply both sides by 4/3 :

( 4/3 ) × ( 3/4y ) = ( 4/3 ) × ( -6 )

Final answer is y = - 8

Help please homework

Answers

Answer:

Y=7

Step-by-step explanation:

(X,Y) or (-2,?)

X=-2

4×(-2)-4y=20

-8-4y=20

-4y=20+8 /÷(-4)

Y=7

Can someone help me on a essay (how do you use math outside of school)?

Answers

Answer:

Step-by-step explanation:

Im not going to write the entire essay but here's some ideas for every paragraph. Like the main ideas.

(introduction explain why people should read this essay)

(paragraph 1) Explain different jobs that use math daily and why these jobs are  essential.

(paragraph 2) Math can help in social situations. For example, If someone asks you for the time and you don't know how to tell time.

(paragraph 3) Mathematics makes our life orderly and prevents chaos. Certain qualities that are nurtured by mathematics are power of reasoning, creativity, abstract or spatial thinking, critical thinking, problem-solving ability and even effective communication skills.

(conclusion) Reinstate your main idea and purpose of the essay.

Hope this helps you organize your thoughts!  

HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP

The number of sandwiches sold by four stores during one week is shown in the graphs. Which store has the MOST skewed data?

Answers

I’m pretty sure it’s c

i really need help i am really bad at math

Answers

The answer to this questions is c

Which choice is equivalent to the product below?
√2 x √8 x √4

A. 8 √2
B. 4 √2
C. 4
D. 8

Answers

I think the answer is C

Answer:

8

Step-by-step explanation:

What is
7.5% tax on
a $18
sweater?

19.35 or 1.35

Answers

Answer:

$1.35 will be your answer

Step-by-step explanation:

18 x 0.075 = 1.35

Answer:

[tex]1.35[/tex]

Step-by-step explanation:

7.5% of 18$ is 1.35.

It would make no sense if the tax cost more than the actual item.

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