(4-xy)(5x-3y)-(x+y)(x-3y)

Answers

Answer 1

Answer:

20x-12y-5x²y+3xy²-x²+2xy+3y²

Step-by-step explanation:

(4-xy)(5x-3y)-(x+y)(x-3y)

20x-12y-5x²y+3xy²-(x+y)(x-3y)

20x-12y-5x²y+3xy²-x²+2xy+3y²


Related Questions

Need help ASAP pls !!!!

Answers

Relative frequency or experimental probability is calculated from the number of times an event happens, divided by the total number of trials in an actual experiment.

The theoretical probability of getting a head when you flip a fair coin is
1
2
, but if a coin was actually flipped 100 times you may not get exactly 50 heads, although it should be close to this amount.

If a coin was flipped a hundred times, the amount of times a head actually did appear would be the relative frequency, so if there were 59 heads and 41 tails the relative frequency of flipping a head would be
59
100
(or 0.59 or 59%).

Relative frequency is used when probability is being estimated using the outcomes of an experiment or trial, when theoretical probability cannot be used.

For example, when using a biased dice, the probability of getting each number is no longer
1
6
. To be able to assign a probability to each number, an experiment would need to be conducted. From the experimental results, the relative frequency could be calculated.

The more times that an experiment has been carried out, the more reliable the relative frequency is as an estimate of the probability.

Example

Ella rolls a dice and records the number of times she scores a six. Find the relative frequency that Ella rolls a six on her dice.

Point W is on line segment V X. Given VX = 18 and VW = 14 determine the length W X

Answers

Answer: WX = 4

Concept:

Here, we need to know the idea of segment addition postulate.

The Segment Addition Postulate states that given 2 points A and C, a third point B lies on the line segment AC if and only if the distances between the points satisfy the equation AB + BC = AC.

Solve:

Given information

VX = 18

VW = 14

Given expression deducted from the segment addition postulate

WX = VX - VW

Substitute values into the expression

WX = 18 - 14

Simplify by subtraction

WX = 4

Hope this helps!! :)

Please let me know if you have any questions

Explain what are all of the properties of real numbers and use an example for each.

Answers

Answer:

mark me as a brainlist answer

Step-by-step explanation:

Give examples to explain the properties of real numbers

Property (a, b and c are real numbers, variables or algebraic expressions)Examples8.Additive Inverse Property a + (-a) = 04 + (-4) = 09.Multiplicative Inverse Property10.Zero Property of Multiplication a • 0 = 04 • 0 = 011.Closure Property of Addition a + b is a real number10 + 5 = 15 (a real number)

pls answer my question ​

Answers

Answer:

hope this helps you

have a great day

What are the dimensions of this rectangle?

Answers

Answer:

F:53cm by 102cm

Step-by-step explanation:

The perimeter of a rectangle can be seen as 2l + 2w, with the length being l, and the width being d. If the ratio is 3:2, then 3+2= 5 parts would be the sum of the length and the width, This is half of the perimeter 2(l+w), so 510÷2 = 255. One part would be 255÷5=51.

If you put it into the ratio, effectively it is:

Length:Width

3×51:2×51

153  :102

Therefore the dimensions are 153cm by 102cm, which is F.

f(x) 2x+6; vertical shrink by a factor of 1/2

Answers

Plug in the vertical shrink into the original equation to make f(x) = 1/2(2x+6)

HELP ME PLEASE! IM IN SEARCH OF ANSWERS AND I DONT GET ANY UNDER MY POST SO IF YOU COULD, PLEASE ANSWER THIS QUESTION AND EXPLAIN IF YOU WANT.
FEEL FREE TO CHECK MY USER FOR QUESTIONS FOR YOU TO ANSWER!!!
THANK YOU!​

Answers

Answer:

3 a) 8x +8 in

3 b) 24 in

3 c) 4x +4 in

3 d) 16x + 16 in

Step-by-step explanation:

3 b) You have to put 2 in place of x and calculate the perimeter:

8•2 +8

16 +8

24 in

7.
Which kind of function best models the data in the table? Graph the data and write an equation to model the data.

A. exponential; y = 3x – 2
B. quadratic; y = x2 – 2
C. linear; y = –x – 2
D. linear; y = x – 2

Answers

Answer:

C. linear; y = –x – 2

Step-by-step explanation:

Answer:

Option A, linear; y = -x - 2

Step-by-step explanation:

Example-

x = 3

y = ?

? = -3 - 2 (add the negative number if in the case of subtracting a negative number)

? = -5

Find the mean of 9, 10, 3, 9, 2, 3 graphically.

Answers

Answer:

Mean=6

Sum of numbers= 30

Step-by-step explanation:

What is the distance of 1 wavelength?

Answers

Answer:

The length of a wave is one way to measure its size. It's the distance between two neighboring waves' corresponding points, commonly measured in meters. The distance between two adjacent crests is used to calculate the wavelength of a transverse wave.

Step-by-step explanation:

:)

Randy and Trey take turns cleaning offices on the weekends. It takes Randy at most 4 hours to clean the offices. It takes Trey at most 6 hours to clean the offices. What is the greatest amount of time it would take them to clean the offices together?
2.4 hours
2.5 hours
3.0 hours
4.0 hours

The answer is supposedly 2.4 hours, but how ?? Please explain. Thanks!

Answers

In one hour Randy cleans at least 1/4 of the offices and in one hour Trey cleans at least 1/6 of the offices.

Working together they would clean at least 1/4 + 1/6 = 5/12 of the offices.

Let x be the greatest amount of time it would take them to clean the offices together. Then we can write the following equation:

5x/12=1

solve for variable (image attached)

Answers

Answer:

x = 2

Step-by-step explanation:

Given

[tex]\frac{3(6x+8)}{4}[/tex] = 15 ( multiply both sides by 4 to clear the fraction )

3(6x + 8) = 60 ( divide both sides by 3 )

6x + 8 = 20 ( subtract 8 from both sides )

6x = 12 ( divide both sides by 6 )

x = 2

The value of x in the equation is 2

The equation given :

3(6x + 8) / 4 = 15

Multiply both sides by 4

3(6x + 8) = 15 × 4

3(6x + 8) = 60

Open the bracket

18x + 24 = 60

18x = 60 - 24

18x = 36

x = 36/18

x = 2

The value of x in the equation is 2

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The number of students in high school has been increasing linearly since 1990. In 1997, there were 1125 students and in 2000, there were 1200 students.
Write an equation for the number of students as a function of the number of years since 1990.

Answers

Answer:

(x-1990)×25

Step-by-step explanation:

SEE THE IMAGE FOR SOLUTION

HOPE IT HELPS

HAVE A GREAT DAY

The Equation is 25x-47500 as a function of the number of years since 1990.

To find equation for the number of students .

What is equation?

Statement that the values of two mathematical expressions are equal.

Given that:

The number of students in high school has been increasing linearly since 1990.

In 1997, 1125 students and in 2000, there were 1200 students.

Increase the number of students in 1997-2000

=1200-1125=75

In 3 years 75 student increased

In 1st years 25 student increased

number of students that will  increasing  in 1990=25

Equation=(x-1900)*25

Equation=25x-47500

where x is date/year

So, the Equation is 25x-47500 as a function of the number of years since 1990.

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Roland purchased a new pair of shoes online that normally sell for $125.00 but were marked down to $93.75. What is the discount rate Roland received? (1 point)
O 10%
O 13%
O 25%
75%

Answers

Answer:

25%

Step-by-step explanation:

125.00x = 93.75

x = 93.75 / 125 = 0.75

meaning that 93.75 is 75% of 125

and, therefore, the item was discounted 100 - 75 % = 25%

Please help simplify with work. Will give brainliest.

Answers

Answer:

[tex]162 {x}^{10} {y}^{4} {z}^{12} [/tex]

Step-by-step explanation:

[tex]2 {x}^{4} (9 {x}^{3} y^{2} {z}^{6} {)}^{2} [/tex]

➡️[tex] {9}^{2} \times ( {x}^{3} {)}^{2} \times ( {y}^{2} {)}^{2} \times ( {z}^{6} {)}^{2} [/tex]

➡️ [tex]81 \times ( {x}^{3} {)}^{2} \times ( {y}^{2} {)}^{2} \times ( {z}^{6} {)}^{2} [/tex]➡️ [tex]81 {x}^{6} \times ( {y}^{2} {)}^{2} \times ( {z}^{6} {)}^{2} [/tex]➡️ [tex]81 {x}^{6} {y}^{4} \times ( {z}^{6} {)}^{2} [/tex]➡️ [tex]81 {x}^{6} {y}^{4} {z}^{12} [/tex]➡️ [tex]2 {x}^{4} \times 81 {x}^{6} {y}^{4} {z}^{12} [/tex]

➡️[tex]162 {x}^{4} \times {x}^{6} {y}^{4} {z}^{12} [/tex]

➡️[tex]162 {x}^{4 + 6} {y}^{4} {z}^{12} [/tex]

➡️[tex]162 {x}^{10} {y}^{4} {z}^{12} [/tex] ✅

Practice questions for a textbook are marked with difficulty levels of easy, Intermediate, and difficult. 30 of the 149 practice questions are rated as intermediate, approximately what percentage of the questions are intermediate level?

The percent of questions that are intermediate is approximately %

(Round to the nearest whole percent as needed.)

X

3

VE

Answers

30/149 = 0.2013
0.2013 x 100 = 20.13%
20%

The required percentage of the 30 intermediate-level questions is 20%.

Given that,
Practice questions for a textbook are marked with difficulty levels of easy, Intermediate, and difficult. 30 of the 149 practice questions are rated as intermediate, approximately what percentage of the questions are intermediate level is to be determined.

What are percentages?

the percentage is the ratio of the composition of matter to the overall composition of matter multiplied by 100.

What is arithmetic?

In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication and division,


Here,
the required percentage of the intermediate difficult question,
= 30 / 149 * 100
≈ 0.20 * 100
≈ 20%

Thus, the required percentage of the 30 intermediate level question is 20%.

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11. The sum of three consecutive odd integers is
93. Find the integers.

Answers

Answer:

29, 31, 33

Step-by-step explanation:

Oh I think it’s 29 And 31

If 2x minus 4 equals negative 18 what is x with shown work

Answers

Answer:

-7

Step-by-step explanation:

Equation: 2x - 4 = -18

First, add 4 to both sides:

2x = -14

Finally, divide both sides by 2:

x = -7

Check (optional):

2(-7) - 4 = -18

-14 - 4 = -18

-18 = -18 so this is correct

If you're confused about any of these steps, just let me know and I'll try to clear it up for you! :)

Help Me please ,I need help ,someone help me!

Answers

Step-by-step explanation:

Since the integers are consecutive,

let the smaller one be x

then the larger will be x+1

Now their sum is -15

x+x+1=-15

2x=-15-1

2x=-16

x=-8

Therefore the smaller is -8 and the larger is -7

Now when one is added to the smaller integer it becomes -8+1=-7

If 2 is subtracted from the larger one it becomes -7-2=-9

their product therefore becomes -9×-7=63

Translate 13 more than n to an algebraic expression

Answers

Answer:

13+n

Step-by-step explanation:

Answer:

13 + n

Step-by-step explanation:

This is because the known number is 13 times more than n so if the value of n is found, _+ 13_ will give you the final answer.

by selling a cycle for rs 2250 ,the man loses rs 50 ,at what prize he sell to make a profit of rs 80?​

Answers

Answer:

SELLING PRICE OF CYCLE = 2250RS

LOSS MAN SUFFERED = 50RS

Step-by-step explanation:

COST PRICE = SP + LOSS

CP = 2250 + 50

CP = 2300 RS

FORMULA OF PROFIT = SP - CP

TO MAKE PROFIT OF 80 RS

80 = SP - 2300

 SP = 2380 RS

HE SHOULD SELL THE CYCLE AT 2380 TO MAKE PROFIT OF 80 Rs

                                          Thank you

                           PLEASE MARK AS BRAINLIEST

Answer:

rs 2380

Step-by-step explanation:

→ Add rs 50 to the selling price to not make a profit or loss

2250 + 50 = 2300

→ Add rs 80 to the answer above

80 + 2300 = 2380

Please help! Please don't answer if you don't know!​

Answers

Answer:

[-0.25 1.25]

[ ]

[-0.75 2.75]

If not satisfied than..

You can write it in other way as show in step by step

Step-by-step explanation:

Step 1:

First of all find the determinate.

Cross multiply the number 11 ✖ -1

detA = 11 × -1

= -11 ---eq1

And now cross multiply the number 3 ✖ - 5

detA = 3 × -5

= -15 ---eq2

Now we use eq 1 and 2

detA = (-11)-(-15)

Minus cancels minus

So it becomes

detA = -11 + 15

= 4

Step 2:

We find adjacent of the given.

[11 -5]

adjA= [ ]

[3 -1 ]

We change the places. The number 11 goes to in place of -1. -1 goes in place of 11.

And we change the signs of -5 and 3. -5 becomes 5 and 3 becomes -3.

We get

[-1 5]

adjA = [ ]

[-3 11]

Step 3:

Now we use the following formula

1

A^-1 = -------- adjA

detA

1 [-1 5]

A^-1 = ------- [ ]

4 [-3 11]

And now multiply

1

---- with each number of adjA.

4

And than subtract..

And you will get the inverse matrix

If the answer comes same than that's the answer for inverse matrix

Thank you.

Need help understanding! please and thank you.

Answers

Answer:

I only know 5 and 6. 7 stumped me

5) even

6) odd

Step-by-step explanation:

What's the perimeter and
Area?

Answers

gejemmsmwmwkwkwjwgvwh9292i3hbezmalwlwjwhbebsnekalLmNabsheowo

Step-by-step explanation:

maaf klo salah:v

The perimeter is 24 and I don’t know the area I’m so sorry

Andy gets 8 hours of sleep every night for two weeks. How many total hours of sleep will he get in two
weeks? How many minutes of sleep will he get in two weeks? How many seconds will he get in two
weeks? (1 week = 7 days, 1 hr = 60 min, 1 min = 60 sec)

Answers

Answer:

112 hours

Step-by-step explanation:

1 week = 7 days

2 weeks = 14 days

= 14 × 8

= 112 hours

I NEEDDD HELPPPP!! Order the numbers from least to greatest. 1=least and 4=greatest

Answers

Answer:

✓9/4,5/3,✓5,2.5

Step-by-step explanation:

✓9/4=3/2=1.5

✓5=2.2

5/3=1.6

A total of 388 tickets were sold for the school play. They were either adult tickets or student tickets. The number of student tickets sold was three times the number of adult tickets sold. How many adult tickets were sold?​

Answers

Answer:

97

Step-by-step explanation:

388 (number of tickets) / 4 (number of groups (adults, and the 3 times as many kids))

If the number of student tickets sold was three times the number of adult tickets sold, 97 adult tickets were sold.

Let's assume the number of adult tickets sold is 'x.'

According to the information given, the number of student tickets sold was three times the number of adult tickets sold. So, the number of student tickets sold is 3x.

The total number of tickets sold is the sum of the adult and student tickets, which is 388:

x + 3x = 388

Now, combine like terms:

4x = 388

To find the value of 'x,' divide both sides of the equation by 4:

x = 388 / 4

x = 97

To verify the result, let's find the number of student tickets:

Number of student tickets = 3 * 97 = 291

Now, let's add the adult and student tickets:

97 (adult) + 291 (student) = 388

The result checks out, and we have 97 adult tickets and 291 student tickets, which together sum up to the total of 388 tickets sold for the school play.

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I NEED HELP ASAP!! 45 POINTS!!

Answers

men are my favourite type of gender. They satisfy me so much, thank god.

12:
Whole numbers include all positive numbers and zero.
Integers include all positive and negative numbers, and include zero.
Rational numbers include all numbers except for:
- Non repeating decimals (or fractions)
- Imaginary numbers
- e
In this case, -34 fits into two of the categories. Because it is a negative number, it can’t be a whole number, but it can be both an internet and a rational number.

14:
a) Whenever you divide fractions, (x/y), we write the division problem as x divided by y, or y)x.
In this case, 3/11 is equal to 11)3.
b) Now, we just have to divide, so 3 divided by 11 is 0.27 repeating.

Meena's age is four times her daughter's age. Two years ago she was five times herdaughter's age. Find their present ages. pls explain step by step​

Answers

Answer:

8 and 32

Step-by-step explanation:

let daughter's age be x then Meena's age is 4x

2 years ago daughter's age was x- 2 and Meena's age was 4x - 2

Meena was 5 times her daughter's age then , so

4x - 2 = 5(x - 2)

4x - 2 = 5x - 10 ( subtract 4x from both sides )

- 2 = x - 10 ( add 10 to both sides )

8 = x

Thus

daughter is 8 years and Meena is 4 × 8 = 32 years

Darel went to the mall and spent $41. He bought several t-shirts that ach cost
$12 and he bought 1 pair of socks for $5. How many t-shirts did Darel buy?

Answers

Answer:

3

Step-by-step explanation:

12x+5(1)=41

12x=-5+41

12x=36

x=36/12

x=3

12(3)+5(1)=

36+5=41

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