Mathematics College

Simplify the following expression and explain your answer. 3x-y+2y+4xy


show your work plss

Answers

Answer 1

Answer:

Step-by-step explanation:

Here you go mate

PEMDAS: Parentheses, Exponents, Multiplication and Division, Addition and Subtraction

Step 1

3x-y+2y+4xy  equation/Question

step 2

3x-y+2y+4xy  simplify by removing brackets and combining terms

(4xy)+(3x)+(-y+2y)

4xy+3x+y

answer

4xy+3x+y

Answer 2

Answer:

(2x+2y)(2y)+3x-y

Step-by-step explanation:

. . 3x-y+2y+4xy

3x+y+4xy

x²+2xy+y²-x²+2xy-y²+3x-y

(x+y)²-(x²-2xy+y²)+3x-y

(x+y)²-(x-y)²+3x-y

=(x+y+x+y)(x+y-x+y)+3x-y

(2x+2y)(2y)+3x-y

Related Questions

Please help!!!!!!!!!!!!!! I need help please!!!!!!

Answers

Answer:

c

Step-by-step explanation:

Answer:

It would be c

Step-by-step explanation:

Have a nice day!

Is it true or false that a temperature of -3F is colder than a temperature of -9

Is it true or false that A elevation of -42ft is greater than an elevation of -54 ft

Is it true or false that a profit of 28$ is more than a profit of $18

Answers

Answer:

true

Step-by-step explanation:

udh xxx yxdydudhxhxhddhdhdhududududdu

how do you solve 9 tenths minus 13 fiftenths

Answers

Answer:

0.04

Step-by-step explanation:

1. 9/10 = 0.9 and 13/15 = 0.86

2. Subtract 0.9 and 0.86

3. You should end up with 0.04

Remember when a number goes like 0.86666666666 to use 0.86 or if it has 0.86666666667 to use 0.87 because you would be simplifying it.

The random variable X has mean 12 and standard deviation 3. The random variable W is defined as W = 7+2X. What are the mean and standard deviation of W?
A. The mean is 24, and the standard deviation is 6.
B. The mean is 24, and the standard deviation is 13.
C. The mean is 31, and the standard deviation is 3.
D. The mean is 31, and the standard deviation is 6.
E. The mean is 31, and the standard deviation is 13.

Answers

Answer: D. The mean is 31, and the standard deviation is 6.

Step-by-step explanation:

Given the data :

X = mean = 12 ; Standard deviation = 3

W = 7 + 2x

Variance of W = 2x

Variance = Standard deviation²

(2x)² = 4x²

Variance

Standard deviation of X = 3

Variance (W) = 4*3² = 4 * 9 = 36

Variance (W) = 36

Standard deviation = sqrt(variance)

Standard deviation = sqrt(36) = 6

Mean ; of x = 12

Mean(W) = 7 + 2(12)

Mean = 7 + 24

Mean = 31

Your grade before taking the final exam is 493pts out of 510 possible points. The final exam is worth 100 points. How many points do you have to get on the final exam to get 93% overall for the class

Answers

Answer:

You need 75 points.

Step-by-step explanation:

Giving the following information:

Total number of points= 510 + 100= 610 (100%)

Actual number of points= 493

First, we need to determine the number of points required to reach 93%:

Points required= 610*0.93

Points required= 567.3 = 568

Now, the points needed in the final exam:

Difference of points= 568 - 493

Difference of points= 75 points

You need 75 points.

Sophia spent 6.10 for school supplys she spent 3.0” for a notebook

Answers

Answer:

0.85

Step-by-step explanation:

3
Write the value of the 3 in each number.
a) 3.65
b) 0.093
c) 18.31
d) 72.439
e) 32.701
f) 19.03

Answers

Answer:

A. hundreds

B. ones

C.. tens

D. tens

E. 10,000

F. ones

Answer:

a. units or 3.00

b. thousandths or 0.003

c. tenths or 0.30

d. hundreths or 0.030

e. tens or 30.0

f.hundreths or 0.03

Step-by-step explanation:

30 POINTS WOWWWWWW plz answer :)

Answers

Answer:                                                                                                                                      

Step-by-step explanation:

Write an equation for line N

Answers

Answer:

y=x-1

Step-by-step explanation:

Hello? Please help me with this

Answers

Answer:

.25y + 2y

Step-by-step explanation:

Use the distributive property to distribute the y to each term in the parentheses. y times .25 is .25y and y times 2 is 2y.

For the equation, decide if it is always true or never true.

x − 3 = 2x − 3 − x

Answers

Answer:

true

Step-by-step explanation:

In basketball, Nicole makes 4 baskets for every 10 shots. If she takes 3 shots, what is the probability that exactly 2 of them will be baskets

Answers

Answer:

0.288

Step-by-step explanation:

Calculation for what is the probability that exactly 2 of them will be baskets

In order for us to find the probability that exactly 2 of them will be baskets we would have to make use of binomial distribution using Microsoft Excel

P =4 baskets/10 shots=0.4,

x = 2

n = 3 shots

P(2)=BINOMIAL DISTRIBUTION(2,3,0.4,FALSE)

P(2)=0.288

Therefore the probability that exactly 2 of them will be baskets is 0.288

Graphs can only provide a limited view of the data.

a. True
b. False

Answers

Answer:

Graphs can only provide a limited view of the data.

b. False

Step-by-step explanation:

On the contrary, graphs present better views of the presented data.  Mathematically, graphs are methods of visually illustrating data relationships.  The main purpose of using a graph is to present complicated data that show trends or relationships between variables.  It has been an important tool for presenting data in a visual and easy-to-understand format, without using too much description.

Write out the algebraic expression of the ratio 15 to 23 subtracted by d

Answers

15:23 - d

Or


Try the pic I uploaded

Please mark BRAINLEST


Find x
27 degrees and 32 degrees will give brainlist

Answers

Answer:

x = 121°

Step-by-step explanation:

If you add up all the angles of a triangle, you get 180°.

So you must add up all the angles.

[tex]27+32+x=180\\\\59+x=180[/tex]

Next you subtract 59 on both sides.

[tex]x=121[/tex]

x should be 121°.

If you would like to check your answer, you can add up 27, 32, and 121. If it all equals to 180, then your answer is correct.

In the balance scale/equation analogy, what should you write in the blank on the right side of the equation in order to balance the scale for the following equation? 2(x + 1) = 2x + ______


(x + 1)


4


x


2

Answers

Answer:

Option D: 2 is the correct answer.

Step-by-step explanation:

Given equation is:

2(x + 1) = 2x + ______

For balancing the equation, the variables and constants must be same on both sides of the equation.

Simplifying 2(x+1) gives us 2x+2

As 2x is already there, we will add 2 with it in the equation.

Hence,

Option D: 2 is the correct answer.

Heather buys 12 patio chairs for $366. Each chair costs the same amount.

Part A
Which equation represents the best estimate for the cost of each chair?
A. $350 ÷ 5 = $70
B. $360 ÷ 12 = $30
C. $400 ÷ 10 = $40
D. $400 ÷ 20 = $20

Answers

Answer:

Step-by-step explanation:

I need help asap I’m confused

Answers

what’s the question?

is the product of 18 negative numbers and 20 positive numbers a positive number or negative

Answers

Answer:

positive

Step-by-step explanation:

even negatives = positive

whatever positives = positive

positive*positive = positive

This graph and table show the total number of cars parked in a parking lot, n, after it was open for t hours.

Plot and table. Plot has horizontal axis from 0 to 3 in increments of 1, labeled t, and vertical axis from 0 to 18 in increments of 2, labeled n. Plot shows the points left parenthesis 0 comma 0 right parenthesis, left parenthesis 1 comma 6 right parenthesis, left parenthesis 2 comma 12 right parenthesis, and left parenthesis 3 comma 18 right parenthesis. Two-column table has column Time in hours left parenthesis t right parenthesis showing values 0, 1, 2, 3 and column Number of cars parked left parenthesis n right parenthesis showing values 0, 6, 12, 18.





What is an equation showing the relationship between n and t?

Enter your answer by filling in the box to complete the equation.
n =

Answers

Answer: n = 6t

Explanation: i took the test

-3-5-6--4 -3--1
What is the solution to this linear system? Enter a value in each box to create an ordered pair.

Answers

Answer:

-3, 6

Step-by-step explanation:

Where another question helpppppppp plssssss

Answers

Answer:

41.1 = dekagrams

4.14 = hectograms

0.414 = kilograms

Answer:

I agree with the other person

Step-by-step explanation:

i have another question, whats 16 divided by 6,720?

Answers

Answer: 0.00238095238

 

Step-by-step explanation:

0.00238095238 I think

2/3 minus 4/9 what is the fraction

Answers

Answer:

2/9. Decimal form is 0.222....

Step-by-step explanation:

0.2 as a repeating decimal

6051 was rounded to the nearest one. What is the lower bond ?

Answers

Answer:

6050.5

Step-by-step explanation:

The key to this is "rounded to the nearest one"

If the question was to say "round to the nearest 10" you would do 10÷2 = 5

Always divide by 2

1 ÷2 = 0.5

6051 - 0.5 = 6050.5

If it was upper bond it would be:

6051 + 0 5 = 6051.5

You are flying your dragon kite.​ It's connected to 40yd of string. The kite is directly above the edge of a pond. The edge of the pond is 36yd from where the kite is tied to the ground. How high is the kite above the edge of the​ pond?

Answers

We have a right triangle with hypotenuse 38 and leg 34.

We want to find the other leg.

We use the Pythagorean Theorem:

Can someone solve this problem?
[tex]8y - 7 + 7[/tex]
Thank you very much.
Also Hedland gets a shoutout.

Answers

8y -7 + 7

Since two opposites add up to zero , remove them from the expressions
8y

Solution = 8y


In the diagram below, the three lines intersect in the same point, forming six numbered angles.

Answers

A and D are the true statements because opposite angles are equal

For the given figure of intersecting lines the expression holds is m∠1 + m∠3 + m∠5 = 180°. Option D is correct.

Given that, A figure of the intersecting lines is given where 3 lines intersect at the same point.

What is the angle?

The angle can be defined as one line inclined over another line.

What is a Line?

A line can be defined by the shortest distance between two points is called a line.

Here,
From the figure
∠1 = ∠4
∠2 = ∠5
So,
∠6 = ∠3
Now, from the option, the property hold is m∠1 + m∠3 + m∠5 = 180°. because m∠1 + m∠6 + m∠5 = 180°, or ∠6 = ∠3.

Thus, for the given figure of intersecting lines the expression holds is m∠1 + m∠3 + m∠5 = 180°. Option D is correct.

Learn more about Angles here: https://brainly.com/question/13954458

#SPJ2

Is 6x+3y=42 an infinite solution

Answers

nope, I got

x= −1/2y+7

I hope this answers ur question!

Answer:

No it is not. A good calculator for algebra is Symbolab

Will give Brainliest! A rectangle on the coordinate plane has vertices at (0, 0), (4, 0), (4, 2) and (0, 2). A dilation of the rectangle has vertices at (0, 0), (2, 0), (2, 1) and (0, 1). Find the scale factor.

Answers

Answer:  Sample. Points. A(2, 1). B(1, 3). C(3, 2). Segments ... and angle measures of the image of △ABC after a dilation with a scale factor of k? Dilating Lines ... Graph quadrilateral KLMN with vertices K(−3, 6), L(0, 6), M(3, 3), and N(−3, −3) ... Find the perimeter and area of the rectangle. b.

Step-by-step explanation:

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Thanks if you help, It's highly appreciated. :-) The economic ideology expressed in the passage, combined with the industrialization of the early 19th century, most influenced society in which of the following ways?The working class achieved new levels of social mobility.Wealth became increasingly accumulated by a small, elite class.The middle class began to erode as more people began to work in factories.Political equality increased as members of all social classes became wealthier. People tend to evaluate the quality of their lives relative to others around them. In a demonstration of this phenomenon, Frieswijk, Buunk, Steverink, and Slaets (2004) conducted inteviews with frail elderly people. In the interview, each person was compared with fictitious others who were worse off. After the interviews, the elderly people reported more satisfaction with their own lives. Following are hypothetical data similar to those obtained in the research study. The scores are measures on a life-satisfaction scale for a sample of n = 9 elderly people who completed the interview. Assume that the population average score on this scale is = 20. Are the data sufficient to conclude that the people in this sample are significantly more satisfied than others in the general population? Use a one-tailed test with = .05. The life-satisfaction scores for the sample are 18, 23, 24, 44, 19, 27, 23, 26, 25. A 52 gram sample of an unknown metal requires 714 Joules of energy to heat it from30.5C to 82C. What is the specific heat ofthis metal?Answer in units of J/g C. I WILL GIVE BRAINLYESTRead the article "Voyages of Discovery:"Centuries ago, countries sponsored explorers to set sail for parts unknown and return with tales of new lands. These explorations led the Europeans to discover North America. The ocean journey from England, France, or Spain to North America was 3,000 miles of unknown dangers, but it led to discoveries. Explorers made these treacherous voyages for three main reasons: religion, wealth, and competition. These voyages of discovery began in the eleventh century.Historical records indicate that Leif Eriksson, a Viking explorer, was the first man to reach North America around 1000. Leif is credited with landing along the coastline of present-day Newfoundland. A Viking settlement was established and occupied for several years before Eriksson left to return to his homeland. He died around 1020.Much later, Christopher Columbus left his homeland in 1492 to seek wealth in the form of trade items. The Italian explorer was destined for China but erred in direction and arrived on Watling's Island in the Bahamas. It was a long and dangerous journey. Upon arrival, Columbus dedicated the newly discovered land to the Spanish King and Queen of Aragon. Then, Columbus made three more voyages to North America in 1493, 1498, and 1502. To the very end, Christopher Columbus was adamant that he discovered a trade route to China. He denied ever being to North America.Credited with sailing around the southern tip of Florida, Spanish explorer Juan Ponce de Leon had several adventures in the New World. His journey around Florida occurred in 1513. At the time, he thought Florida was an island. When he returned to Florida in 1521, he was wounded by a poisoned arrow, which ultimately ended his life.Afterward, Hernando De Soto, a Spanish adventurer, left to explore present-day Florida in 1538. He and his men traveled thousands of miles through the South. They were the first Europeans recorded to have crossed the Mississippi River in 1541.Sir Walter Raleigh was a soldier, a writer, and a friend of the Queen of England. Around 1587, he sent English colonists to a region later called Virginia. The colony is believed to have been located in North Carolina. 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