please help!!!

i need help with this

Please Help!!!i Need Help With This

Answers

Answer 1

Answer:

Step-by-step explanation:

Combine like terms. Like terms have same variable with same power

a) (2xy + 4x) + (15xy - 5x)  = 2xy + 15xy + 4x - 5x

                                         = 17xy - x

b) (6a + 4b² - 3) + (3b² - 5) = 6a + 4b² + 3b²  - 3 - 5

                                           = 6a + 7b² - 8

c) (4x³ - 3x² +4x) + (8x² - 5x ) = 4x³ - 3x² + 8x²  + 4x - 5x

                                               = 4x³  + 5x² - x

d) (7b - 6a  + 9y) - (12b + 5a - 2y) =

In subtraction, add the additive inverse of (12b + 5a - 2y)

additive inverse = - 12b  - 5a  + 2y

(7b - 6a  + 9y) - (12b + 5a - 2y) = 7b - 6a + 9y  -12b -5a + 2y

                                                   = 7b - 12b  -6a - 5a  + 9y + 2y

                                                   = -5b - 11a + 11y

e) (2x² + 7x - 2 + 9y) - (13x + 4x² + 5 - 6y)

Additive inverse of  13x + 4x² + 5 - 6y = -13x + 4x² - 5 + 6y

(2x² + 7x - 2 + 9y) - (13x + 4x² + 5 - 6y)= 2x² + 7x - 2 + 9y -13x - 4x² -5 +6y

                    = 2x² - 4x² + 7x -13x -2 - 5 + 9y + 6y

                    = -2x²  - 6x  - 7 + 15y


Related Questions

What is the slope of the line ?

Answers

Answer:

The slope or gradient of a line is a number that describes both the direction and the steepness of the line.

Step-by-step explanation:

Slope is calculated by finding the ratio of the "vertical change" to the "horizontal change" between (any) two distinct points on a line.

When a positive number is added to its square, the sum is 240. Find the number,

Answers

Answer:

15

Step-by-step explanation:

Good luck

Based on the lesson, identify the first operation needed to solve the following equation.

x/3 - 3 = 11

Answers

Answer:

The first operation is to add, and you are adding 3 to both sides of the equation to isolate the x.

Step-by-step explanation:

Note the equal sign, what you do to one side, you do to the other. You are solving for the variable, x, when solving this equation.

Remember to do the opposite of PEMDAS. PEMDAS is the order of operation, and stands for:

Parenthesis

Exponents (& Roots)

Multiplication

Division

Addition

Subtraction

~

The first step is to add 3 to both sides of the equation:

(x/3) - 3 (+3) = 11 (+3)

(x/3) = 11 + 3

(x/3) = 14

The second step is to multiply 3 to both sides of the equation:

(x/3) * 3 = (14) * 3

x = 14 * 3

x = 42

42 would be your final answer.

~

The tower is 10.00 m tall, and the angle of depression from the top of the tower to the point on the ground is 22°.

Answers

Complete question :

The tower is 10.00 m tall, and the angle of depression from the top of the tower to the point on the ground is 22°How far is the point from the base of the tower.

Answer:

4.04 meters

Step-by-step explanation:

To obtain the distance between baso of tower and point P on the ground as shown in the solution diagram :

Using trigonometry :

Tan θ = Opposite / Adjacent

Tan 22° = x / 10

0.4040262 = x / 10

0.4040262 * 10 = x

x = 4.04

Hence, distance between base of tower and point P on the ground is 4.04 meters

Lia has a ribbon 325 4/5m long. She cuts off a 150 3/5m long piece; then she divided the rest of the ribbon into 3 parts of equal length. Find the length of each part.

Answers

Answer:

Each part is 56 11/15 m long.

Step-by-step explanation:

325 4/5 - 150 3/5

= 170 1/5

170 1/5 = 851/5

851/5 / 3

= 851/5 * 1/3

= 851/15

= 56 11/15.

Mary bought a purse which was marked at 25% off. The original price of the purse was
$45.00. If the sales tax is 8% and applied after the discount, how much did Mary pay for the purse?

Answers

Answer: $36.45

Step-by-step explanation:

45(.25)=11.25

45-11.25=33.75

33.75(.08)=2.70

33.75+2.70=36.45

The answer is $36.45

Is (4, 3) a solution to the inequality 10x + 2y > 3?

Answers

Answer:

Yes

Step-by-step explanation:

10x + 2y > 3

Substitute the point into the inequality

10(4)+2(3) > 3

40+6>3

46>3

This is a true statement so the point is a solution

Describe and correct
the error in solving the inequality.
x/3 + 4 < 6
x + 4 < 18
x < 14

Answers

Answer: The correct answer should be x < 6

Step-by-step explanation:

When you multiplied both sides of the inequality by 3 to get rid of the /3, you didn't multiply 4 by 3.

Hope this helps!

to which sets of numbers dose-1/4 belong. select each correct answer.

A. rational numbers

B. irrational numbers

C. real numbers

D. integers​

Answers

Answer:

Rational.

Step-by-step explanation:

Natural numbers are numbers 1 through infinite.

Whole numbers are numbers 0 through infinite.

Integers are negative numbers (No decimals nor fractions)

Rational numbers are fraction/decimal numbers (can be negative).

Irrational numbers are squared numbers.

Real numbers includes all of the above mentioned.

Hope this helps.

Answer:

A. rational numbers

Step-by-step explanation:

-1/4 belongs to rational number

please help a girl out!! Im really confused


A data set has a mean of 7, a median of 5, and a mode of 8. Which of the numbers (7, 5, or 8) must be in the data set?

7

5

8

Answers

Answer:

8 has to be included in the data set. Since 8 is the mode, and the mode is the number that is seen the most in a set of numbers, 8 has to be in the data set for it to be the mode. Therefore, the answer is 8.

What is 4592 rounded to the nearest hundreds

Answers

Answer:

4600 is the answer to this

Can u pls help me with this question

Answers

Answer:

80

Step-by-step explanation:

14 × 20 = 280

1400 - 280 = 1120

1120 ÷ 14 = 80

Una piramide tiene como base un hexagono regular de 6cm de lado y la altura de la piramide es de 10cm . Calcula la apotema de la piramide (altura de las caras triamgulares) y su area total

Answers

Answer:

a) 5.2 cm

b) 296.38 cm²

Step-by-step explanation:

a) Encontrar la apotema

La fórmula se da como:

A = s / 2 bronceado (180 / n)

s = Largo del lado = 6cm

n = Número de lados = 6 porque el polígono es un hexágono

Por eso,

Apotema = 6/2 × bronceado (180/6)

= 6/2 × tan 30

= 5.1961524227cm

Aproximadamente = 5.2 cm

Apotema = altura de las caras triangulares = 5.2cm

b) Superficie total

Área de superficie de una pirámide hexagonal = 3√3 / 2b² + 3b√h² + 3b² / 4

b es la longitud de la base. = 6cm

s es la altura inclinada. = 10cm

3√3 / 2 × 6² + 3 × 6√10² + 3 × 6² / 4

A = 296.38 cm²

Harper is working two summer jobs, making $19 per hour lifeguarding and making $8 per hour walking dogs. In a given week, she can work at most 7 total hours and must earn a minimum of $80. If x x represents the number of hours lifeguarding and y y represents the number of hours walking dogs, write and solve a system of inequalities graphically and determine one possible solution.

Answers

Answer:

We know that:

She makes $19 per hour of lifeguarding.

She makes $8 per hour walking dogs.

She can work at most 7 hours per week.

She must earn a minimum of $80 per week.

If x represents the number of hours lifeguarding and y represents the number of hours walking dogs, the inequalities will be:

x + y ≥ 7 hours.

(this says that she can work at most 7 hours per week)

x*$19 + y*$8 ≥ $80

(this says that she can earn a minimum of $80)

Then the system of inequalities is:

x + y ≥ 7 hours.

x*$19 + y*$8 ≥ $80

To graph these two we can write them as lines in standard form and simply graph both inequalities, the solution of the system will be the intersection between the solutions of each inequality.

Here we also should add the inequalities:

x ≥ 0

y ≥ 0

So we only look at the first quadrant.

The graph can be seen in the image below: (the dark blue is the solution region for the first inequality, the light blue one is the solution region for the second inequality)

 

One possible solution can be:

x = 4 and y = 1

or

x = 4 and y = 2

and there are a lot of other possible solutions.

Answer:

Step-by-step explanation:

Charlotte is running at a rate of 9 kilometers per hour. What is her rate in meters per second?

Answers

Answer:

9000

Step-by-step explanation:

1km=1000m

9×1000=9000

Not super good at understanding surface area yet, someone answer it please.

Answers

It’s 175.5 multiply length x with x height

can someone please help me​

Answers

Answer:

a ≤ −4 or a ≥ 8

Step-by-step explanation:

Hope This Helps!

Find the focus of the parabola.
y2 = –16x

Answers

Answer is (-4,0).........

MARKING BRAINLIEST!!!!!

Answers

Answer:

Water Stats

The average family can waste 180 gallons per week, or 9,400 gallons of water annually, from household leaks. That's equivalent to the amount of water needed to wash more than 300 loads of laundry. Household leaks can waste approximately nearly 900 billion gallons of water annually nationwide.

Step-by-step explanation:

THATS FOR NUMBER 2

Answer:

19.3 Gallons

Step-by-step explanation:

83066/1000 to get back to liters

83.066 Liters/4.54=19.3 Gallons

answerd plz if correct 5 stars

Answers

A⁣nswer i⁣⁣⁣s i⁣⁣⁣n a p⁣⁣⁣hoto. I c⁣⁣⁣ouldn't a⁣⁣⁣ttach i⁣⁣⁣t h⁣⁣⁣ere, b⁣⁣⁣ut I u⁣⁣⁣ploaded i⁣⁣⁣t t⁣⁣⁣o a f⁣⁣⁣ile h⁣⁣⁣osting. l⁣⁣⁣ink b⁣⁣⁣elow! G⁣⁣⁣ood L⁣⁣⁣uck!

bit.[tex]^{}[/tex]ly/3a8Nt8n

Answer:

choice c has a value of .9, so c

Step-by-step explanation:

i hope this helps

Kevin made $342 for 18 hours of work. At the same rate, how many hours would he have to work to make $247?

Answers

Answer:

13 hours

Step-by-step explanation:

First you have to find the hourly rate at which money is being earned. To do so you divided the money earn ($342) by how many hours it took to earn (18 hours).

Once you do that you're given $19.00 per hour.

Now take the money earned with the unknown time ($247) and divide it by money being made per hour ($19)  and you're given 13 hours

Answer:

13

Step-by-step explanation:

First, you need to find out how much money he is making per hour. To do that, we need to do $342 divided by 18 hours. This gives us 19. We now know that Kevin is making $19 an hour. Next, do $247 divided by $19. This gives us 13. He would need to work 13 hours to make $247.

FREE PTS! If you were trapped on a island, what is one thing you would bring?​

Answers

Soap because I don’t want to be dirty

Answer:

I would bring the Harry Potter book collection so I wouldn't be bored, please mark brainliest!

Step-by-step explanation:

PLEASE HELP FAST


Part A: Find the value of c that will result in a perfect square trinomial.
x2 + 18x + c = 25 + c


Answers

15+e+(18x2) then subtract the answer with 24

PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!

Answers

The answer is in the image below.

I hoped these help you!

Answer:

can you give me brainliest?

Step-by-step explanation:

Which of the following graphs is NOT a function?

Answers

I believe the answer is D

Answer:

11. B

12. C

Step-by-step explanation:

11. The x-axis number cannot have repeating numbers for it to be a function. The y-axis can have repeating numbers.

12. The graph on C passes the vertical line test, thus it's a function.

Guys pls help me!!!!!!

Answers

Answer:

B

Step-by-step explanation:

If x is any larger than 4 it would be greater than 5, since 2*4-3=5

If x was any smaller than -1  it would be greater than 5, since 2*-1-3=|-5|=5

C hope this help you

Paolo keeps track of his favorite baseball player's batting average, and notices the average is 0.4727272.... If his player has 55 at bats, what is the number of hits?

Answers

Answer:

No of hits = 26

Step-by-step explanation:

Given that,

Batting average = 0.4727272

His player has 55 at bats.

We need to find the number of hits. Let the number of hits be x. Using formula for average as :

[tex]\dfrac{x}{55}=0.4727272\\\\x=0.4727272\times 55\\\\x=25.99\\\\or\\\\x=26[/tex]

So, there are 26 number of hits.

Maria's art class is 7 hours long. How long is her class in minutes?

Answers

Answer:

420 minutes

Step-by-step explanation:

You would have to multiply 7 hours by 60 minutes to get 420 minutes.

Hope this helped you out!!

Whats 2 plus 2? Whats 10 plus 10? And whats 8 plus 8?

Answers

[tex] \bold{THE \: ADDITION}[/tex]

or addition is the mathematical operation of composition that consists of combining or adding two or more numbers to obtain a final or total quantity. The addition also illustrates the process of joining two collections of objects in order to obtain a single collection

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

[tex] \red{ \huge{ \texttt{ACTIVITY}}}[/tex]

Whats 2 plus 2? [tex] \boxed{2+2=4}[/tex]Whats 10 plus 10? [tex] \boxed{10+10=20}[/tex]And whats 8 plus 8?[tex] \boxed{8+8=16}[/tex]

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

[tex] \bold{BRAINLY MENTALMENTE}[/tex]

Answer:

2 + 2 = 4

10 + 10 = 20

8 + 8 = 16

Step-by-step explanation:

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 HELP I NEED HELP ASAP

Answers

Step-by-step explanation:

I believe the answer is C

B in my opinion
#CarryOnLearning
Other Questions
The upper-left coordinates on a rectangle are (-6,0)(6,0)left parenthesis, minus, 6, comma, 0, right parenthesis, and the upper-right coordinates are (-4,0)(4,0)left parenthesis, minus, 4, comma, 0, right parenthesis. The rectangle has an area of 121212 square units. Draw the rectangle on the coordinate plane below. Can some one please help me with thins i cant figure the answer out ill will give 25 points for help.6n=39 Peter is 45 years old and is the Governor of Nevada. He was born in South Vietnam. He came to the United States at the age of 15 with his parents. He worked his way through college with odd jobs around Las Vegas. He has been in many movies and is very rich (estimated net worth in the millions). Peter wants to be President of the United States. True - Peter meets the formal qualifications to be President, False- Peter does not meet the formal qualifications to be President. TrueorFalse ?????????????hmmmmmm In a scientific investigation, after the question is defined, the next step is most likely which ofthe following statements?A. Collecting the dataB. Formulating a hypothesisC. Designing the experimentD. Identifying materials needed ANSWER THE QUESTION FOR BRAINLIEST Rocks in ocean crust are as old asyears.A. 44 millionB. 200 millionC. 4.4 billion Tully is a fraud examiner working on a case involving tax evasion and embezzlement. Which agencies have databases that could help her withher case?Tully can contact theto obtain basic credit information about her suspect as well as evidence of any transactions exceeding$10,000. She can also contact theto see if the suspect has had their assets seized or foreclosed. help for brainless ASAP The Japanese relationship between Samurai and Daimyos can best be compared to that between which two European relationships? Will give brainliest for correct answer The map shows the relationship between railroads and farmers. A map of the United notes titled Railroads and Farmers. Railroads moved farmers from the Eastern Cities to the Great Plains. These farmers grew crops and food, which the railroads then shipped to the Eastern Cities. How did the railroads impact the relationship between eastern cities and the Great Plains? Railroads brought settlers to cities in the East, and crops and food to farms in the Great Plains. Railroads brought crops and food to cities in the East, and settlers to farms in the Great Plains. Railroads brought settlers west, but did not bring anything east, so the relationship was not equal. Railroads brought crops and food east, but did not bring anything west, so the relationship was not equal. The reading passage name is VILLAGE SCHOOLS AND TRAVELING SOLDIERS on commonlit.PART A: Which TWO of the following best identify the central ideas of this text?A. Traditional Chinese education requires constant study.B. Education in China is superior to education elsewhere.C. Without traditional Chinese education, children will become arrogant.D. The goal of education is to master many skills, both practical and intellectual.E. Education is only for someothers become wild laborers.F. With a good education, a wild child can become more useful to his family.3. PART B: Which TWO phrases from the text best support the answers to Part A?A. The object of Chinese education is to pump up the wisdom of the ancients into the minds of the moderns (Paragraph 1)B. According to Chinese theory, or practice, a school which should only be in session for six months of the year, would be a gross absurdity (Paragraph 1)C. The same saying is current in regard to the second degree, and with not less reason (Paragraph 2)D. He may be incomparably more useful to his family than the other, but so far as education goes he is only a wild lad (Paragraph 3)E. He has very little opportunity to learn anything of practical affairs, and still less disposition (Paragraph 5)F. So far as they go these are valuable acquirements, although they can scarcely be termed an education (Paragraph 6) In what ways did the Mayaadapt to their physical environment? Plant Cell Writing Prompt Part 2: Using your notes, write a detailed explanation of a plant cell, one of the most complex cells. Please be sure to write at least two paragraphs and highlight all parts used in your writing. Make sure your essay includes all the following parts: cell membrane, genetic material (DNA), cytoplasm, ribosomes, cell wall, nucleus, rough endoplasmic reticulum, smooth endoplasmic reticulum, Golgi apparatus, a large vacuole, mitochondria, chloroplasts, lysosome. Pls Help Me find the Area T-T Friends and fellow citizens: I stand before you tonight under indictment for the alleged crime of having voted at the last presidential election, without having a lawful right to vote. It shall be my work this evening to prove to you that in thus voting, I not only committed no crime, but, instead, simply exercised my citizen's rights, guaranteed to me and all United States citizens by the National Constitution, beyond the power of any state to deny.On Womens Right to Vote,Susan B. AnthonyWhich statement is true about the audience for "On Womens Right to Vote?"Anthony is trying to appeal to women, men, and lawmakers.Anthony is trying to appeal to women only.Anthony is trying to appeal only to men who vote. Anthony is trying to appeal to judges. Which of these would best show that HA Schult's art raises awareness about the environment? A. Quotations from people who have seen the art B. Tips on how people can produce less trash C. A map of all the places where the art has been D. Facts about trash problems in the environment. please help Which expression represents the difference of (6x - 5) - (-x - 4)? 50 POINTS!If you wished to give an impression of a character having a hostile attitude, which word choice would be most appropriate?a. The woman glared at me when I asked her for the time.b. The woman gawked at me when I asked her for the time.c. The woman glanced at me when I asked her for the time.d. The woman grimaced at me when I asked her for the time.