what is the solution 2x-y=-2 2x+4y=8

Answers

Answer 1

Answer:

The answer is

x is 0

y is 2

Step-by-step explanation:

2x-y=-2

-2x-4y=-8

 -5y=-10

y=2

2x-2=-2

2x=0

x=0


Related Questions

How do you multiply monomials with the same base?​

Answers

9514 1404 393

Answer:

  multiply their coefficients, use the base with the sum of exponents

Step-by-step explanation:

The coefficients multiply. The base gets an exponent that is the sum of the exponents of the factors.

  (a·x^b)(c·x^d) = ac·x^(b+d)

_____

If you remember that an exponent is simply an indicator of the number of times the base is a factor, this should be fairly clear. The usual associative and commutative properties of multiplication apply.

Example

  5x^2 · 7x^3= 5·x·x·7·x·x·x

  = 5·7·x·x·x·x·x

  = (5·7)(x^(2+3))

  = 35x^5

find the measure of m

Answers

Answer:

m=42

Step-by-step explanation:

because all straight line equal 180, we can find angle C

180-98=82

now, all triangles add up to 180. If we add up all the values we can find x

82+6x+8+5x+2=180

92+11x=180

11x=88

x=8

Now, just plug the variable into the angle measure

5(8)+2

40+2

42

What will 3/4 divided by 5 be

Answers

Answer:

3/20= .15

Step-by-step explanation:

;)

it’s 0.15 don’t forget the 0 and the decimal they are needed for the answer and if you don’t put it you’ll be marked as wrong !

14,219.92 The 9 in the ones place is _______ the value of the 9 in the tenths place.

Answers

Answer:

less

Step-by-step explanation:

Answer: 14,219.92 The 9 in the ones place is 10 times the value of the 9 in the tenths place.

Please MY LAST 15 POINTS! What is the x-coordinate of point B? Write a decimal coordinate.




On a coordinate plane, point B is 1.5 units to the left and 3.5 units up.

Answers

Answer:

-1.5

Step-by-step explanation:

i hope this helps

Help please with this

Answers

Negative reciprocals of each other

!Please help!

Antoine is drawing a scale map of the park he uses a scale of 1cm : 15 paces. A pond is 75 paces from the front gate of the park how far is the pond from the gate on the map

Answers

Answer:

5

Step-by-step explanation:

i just did it

<1 and <2 are complementary angles. the measure of <1 is 42°. The measure of <2 is 3x°. find the value of x.​

Answers

90-42=48

48=3x
48/3=16

x=17

12. If f"(x) = x(x + 1)(x - 2)2, then the graph of f has inflection points when x =
A.-1only
B. 2only
C.-1 and 0only
D.-1 and 2 only
E. -1,0 and 2 only

Answers

Answer:

C. - 1 and 0 only

Step-by-step explanation:

(x + 1) / x = 0, - 1, 2

inflection points / when sign Changes

+  /   -   /  +       /  +

"- 1 "   "0"      2

  ^      ^

"Hope this helps"

The graph of f has inflection points when x = 0 and -1.

Given that,

If graph =  f"(x) = x(x + 1)(x - 2)^2

We have to determine,

The graph of f has inflection point when x is.

According to the question,

Inflection point is the point in which the rate of slope changes in increasing to decreasing order or vice versa.

These points are generally not local maxima or minima but stationary points.

[tex]f''(x) = 0[/tex]

Therefore,

The graph of f has inflection point at,

[tex]f''(x) = x (x+1) (x-2)^{2} = 0\\\\x = 0 \ and \ x+1 = 0 \ \ = x = -1\\\\ or \ x-2 = 0 , \\\ \ \ = x =2[/tex]

On taking intersection of these points,

The graph has inflection points at x = 0 and -1.

Hence, The graph of f has inflection points when x = 0 and -1.

To know more about Inflection points click the link given below.

https://brainly.com/question/2289668

5.5.19
Factor out the greatest common factor from the following polynomial.
6x(z + 14)+(z + 14)
Select the correct choice below and, if necessary, fill in the answer box to complete your cho
6x(z + 14)+(z+14) = _______ Type your answer in factored form.)
The polynomial has no common factor other than 1.

Answers

Answer:

The greatest common factor of 6x(z + 14)+(z + 14) is 1

and if you want it in factored form it is (z + 14)(6x + 1)

Add parentheses to the expression so that its value is 45:

5 × 4 + 8 - 3

no parentheses are needed
5 × (4 + 8 - 3)
5 × (4 + 8) - 3
5 × 4 + (8 - 3)

Answers

iiiitttt’s the first one

Answer:

first one

Step-by-step explanation:

A recipe asks for 2 1/3 cups cup of flour.
How many cups of flour are needed for 3 1/2 recipes​

Answers

Answer:

8.17  sorry if its wrong

Step-by-step explanation:

2. Riverside Elementary School is holding a school-wide election to choose a school color. Five-eighths of the votes were for blue, 5/9 of the remaining votes were for green, and the remaining 48 votes were for red.


a. How many votes were for blue?



b. How many votes were for green?

Answers

Answer:

a. 180 votes were for blue

b. 60 votes were for green

Step-by-step explanation:

Fractions

It's known 5/8 of the votes of a school-wide election were for painting the school blue. Suppose there were x voters in school.

Since 5/8 were for blue, then

[tex]1-\frac{5}{8}=\frac{3}{8}[/tex]

Were for the rest of the colors. It's also known 5/9 of the remaining votes were for green, thus

[tex]1-\frac{5}{9}=\frac{4}{9}[/tex]

of the remaining votes were for red.

The votes for red are:

[tex]\frac{3}{8}\cdot\frac{4}{9}=\frac{1}{6}[/tex]

of the total voters.

We know these were 48 votes, thus

[tex]\displaystyle x=\frac{48}{\frac{1}{6}}[/tex]

[tex]x = 288[/tex]

There were 288 voters in school.

a. 5/8 were for blue, that is:

[tex]\frac{5}{8}*288=180[/tex]

180 votes were for blue

b. 288-180 = 108 votes were for others than blue, and 5/9 of them were for green:

[tex]\frac{5}{9}*108=60[/tex]

60 votes were for green and 108-60=48 votes were for red (as expected)

The slope of the line below is -1/7. Write a point-slope equation of the line
using the coordinates of the labeled point.

Answers

Answer:

D

Step-by-step explanation:

It’s d

Can Someone help with this​

Answers

Answer:

x        y

-2      5

-1 .      1

3 .       1

-1        -2

Step-by-step explanation:

in 1 just put in

x        y

-2      5

-1 .      1

3 .       1

-1        -2

What’s is 9 divided by 3/10

Answers

Answer:

30

Step-by-step explanation:

9/(3/10)=9*(10/3)=30

This should be the format of your answer:
Ex. Given: distance = 500 m/s
time = 10 s
Asked: speed
Formula: d/t
Solution: 500 m/10 s
Answer: 50 m/s

2. The new Ferrari can accelerate from rest to 100 km/hr in 5 seconds. What is the average acceleration of the car in m/s2?
3. A car starts from a stoplight and is traveling with a velocity of 10 m/sec east in 20 seconds. What is the acceleration of the car?
4. A ball is rolled at a velocity of 12 m/s. After 36 seconds, it comes to a stop. What is the acceleration of the ball?

Answers

Answer:

The answer is below

Step-by-step explanation:

Acceleration is the time rate of change in velocity. Acceleration is given by:

Acceleration = change in velocity / time taken

Acceleration = (final velocity - initial velocity) / time

1) The Ferrari is from rest, hence initial velocity = 0. The final velocity = 100 km/h = [tex]\frac{100\ km*1000\ \frac{m}{km} }{1\ hr*\frac{3600\ s}{1\ hr} } =27.78\ m/s[/tex], time = 5 s

Acceleration = (0 - 27.78) / 5 = 5.56 m/s²

2) The car has initial velocity = 10 m/s. The final velocity = 10 m/s since velocity is constant. time = 20 s

Acceleration = (10 - 10) / 20 = 0 m/s²

3) The ball has initial velocity = 12 m/s. The final velocity = 0 m/s since it stops. time = 36 s

Acceleration = (0 - 12) / 36 = -0.33 m/s²

There are 99 females and 121 males participating in a marathon. What percent of the participants are male

Answers

Answer:

0.55 = 55%

Step-by-step explanation:

total people:  220

121/220 = 11/20 = 55%

brainileist pweeeeeez

Answer:

55%

Step-by-step explanation:

121/99+121

0.55

55%

simplify 3 to the 3rd power plus 2 to the 2nd power

Answers

Answer:

31

Step-by-step explanation:

Write it out: [tex]3^{3} + 2^{2}[/tex]  Simplify: 27 + 427 + 4 = 31

I hope this helps!

Answer:

31

Step-by-step explanation:

3³+2²  

27 + 4 = 31

I hope this helps!

3n + 7 - 11n - 31 = 160

Answers

Answer:

n = -23

Step-by-step explanation:

3n + 7 - 11n - 31 = 160

Step 1: Combine like terms

-8n - 24 = 160

Step 2: Simplify

-8n = 184

n = -23

Answer:

= −23

Step-by-step explanation:

Subtract the numbers

3 + 7 - 11-31 = 160

3-24 - 11 = 160

Combine like terms

3 - 24-11 = 160

-8 - 24 = 160

Add 24 to both sides of the equation

-8 - 24 = 160

-8 - 24 + 24 = 160 + 24

Simplify

Add the numbers

Add the numbers

--> -8 = 184

Divide both sides of the equation by the same term

-8 = 184

-8/-8 = 184/-8

Simplify

Cancel terms that are in both the numerator and denominator

Divide the numbers

--> = -23

PLZZZZZ HELPpppppppp

Answers

Answer:

I will help if u come here

Answer:

the table does not match jada problem because for. each sparkling water and Apple juice she should have gotten 2x the amount

667676767667676767676766676767676766767676766776767676767676767676767676767676767676 x 6676767676766767676767676767676767676767676767676767676767676767676676767676767676767

Answers

Answer:

y^6

hope it helps you

Step-by-step explanation:

brainliest plus

For a science experiment, students need to find 25% of 60 grams. How many grams is that?

Answers

Answer:
15 grams.

Explanation:
25% of 60 = 15

Solve the inequality -2/9b>-12

Answers

Answer:

1/2

Step-by-step explanation:

LOOK BELOW PLEASE AM MARKING BAINLIST PLEASE GUYS

Answers

Answer:

C) 10

Step-by-step explanation:

hope it helps youuuuuu

Answer:

i got c) 10

Step-by-step explanation:

(11^2-9^2)*(1/2)^2

(121-81)

40*(1/2)^2

40*0.25

10

vwala can i have brainliest?

Need help on 5, 7 and 8 very urgent plz help will give brainlist if you actually help this is 20% of my grade!!!!

Answers

Answer:

5.)26v+5

7.)32b x 7

8.)a

Step-by-step explanation:

i think these are all right but that's how you do it in algebra so if you aren't in algebra i'm sorry I tried.

John has $40. He will use some of the money to buy books, and he wants to have at least $10 left to put in his savings account. Each book costs $6. a. Write an inequality to represent this story, using b to represent the number of books John buys. b. Solve the inequality, showing each step of your work. c. In complete sentences, explain what the solution means in the context of the story.

Answers

Answer:

3231

Step-by-step explanation:

The answer is in the 3,000 area i messed up to get the exact amount


AABC has been translated right to create triangle AXYZ. Based on this information,
which of the following is a true statement?
OA) BEX
B) LAC
C)
Z = AC
D
0 % ZY

Answers

Answer:

C.) XZ ~= AC

Step-by-step explanation:

That is your answer. Hope this helps

Which of these expressions is equivalent to z + z+z + z?

A.4z
B.4+z4
C.4+z
D.4z4

Answers

Answer:

A. 4z

Step-by-step explanation:

The expressions is equivalent to z + z+z + z would be 4z. so option A is correct.

What are equivalent expressions?

Those expressions who might look different but their simplified forms are same expressions are called equivalent expressions.

Given expression

z + z+z + z

All the terms are like terms, by adding all of them

z + z+z + z

= 4z

Thus, The expressions is equivalent to z + z+z + z would be 4z. so option A is correct.

Learn more about factorization of quadratic expression here:

https://brainly.com/question/26675692

#SPJ2

Which number comes next in the pattern? 89, 77, 65, 53,
CLEAR
SUBMIT
SUBMIT
12
41
42
52
O

Answers

Answer:

41 comes next then 29 then 17


89-12 = 77
77-12= 65
65-12= 53
53-12= 41

it’s a pattern just by subtracting 12

ANSWER: 41
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Totally blanking on how medians work Find the slope and the y-intercept of the graph of y - 2= 3/4 x Do you think people need the product that these businesses offer? Why? What is 2/5 divided 1/3 The Beatles When people hear the name "The Beatles" most people think of co-lead singer, John Lennon. However, the role of Paul McCartney is often overlooked. John Lennon and Paul McCartney were in other bands together before the forming of the Beatles. In 1962, along with Ringo Starr and George Harrison, they formed the rock group known as "The Beatles." The group featured a modern rock that was new and popular during the period with John and Paul composing and doing the leads on most of the songs. They were backed by George on lead guitar and Ringo on drums. George and Ringo also assisted on backing vocals. When they first began playing, the main influence inside the band was John Lennon, who had an ability to compose songs at a moment's notice with an inspiration that others missed. He pushed the members of the band during their touring years and was able to achieve the best possible results from the group. However, McCartney was also a strong force in the group since Lennon many times asked for McCartney's advice about ideas for songs. McCartney wrote many of the group's biggest hit songs, and often, he didn't even ask for song writing credit. After the breakup, McCartney launched a successful solo career. He has released many recordings both in the United States and abroad. One accomplishment was his first classical piece, Liverpool Oratorio, which is no small feat considering that McCartney never learned to read music.Which text would most likely follow the same text structure as the passage? A. a report listing the best instruments for new musicians B. an article explaining the effects of music on babies C. an encyclopedia entry detailing the history of music D. a piece explaining how pianos and harpsichords are alike Find the slope of the line If 2x +9= 23, then 3x = NEED HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Harold opened a credit card at a department store with an APR of 14.55% compounded monthly. What is the APY on this credit card? View the short documentary film titled That Sugar Film. Discuss how production and consumption of sugar affect your journey towards the good life. Prepare a presentation to this. How unreflective consumption of goods- in the case, sugar-affect human life? The area of a square field is 4,900 square meters. How long is one sideof the field?O 70 metersO 140 metersO 560 metersO 1225 meters A SWOT analysis provides organizational strategists with key information and a realistic assessment and understanding of both the internal and external environments. This activity is important because a SWOT analysis is a useful tool in gathering information about the competitive environment to establish a grand strategy.The goal of this exercise is to challenge your knowledge of SWOT analysis. Wrtie down the most appropriate area of the SWOT analysis for each item.1. The R&D program at the company produces world-class products 2. Our product is targeted to young professionals under 35 years of age. That group is growing. 3. The equipment the company owns is last generation and does not have the latest technology, 4- There have been several up and coming companies that are beginning to enter our market space, 5. Word is that a new highway is being built in the next couple of years. making it easier to transport our products from the factory. 6. The employees who work for us are highly skilled and leaders in their field. 7. Management does not provide a big budget to support the world-class staff that work for the company. g. The company uses a fair amount of short-term debt financed through the bank. Economic projections indicate that interest rates may rise in the future and credit will be more difficult to obtain Describe five ways that you can stay safe when you photograph Please help me. 30 points. Shelly has a bag containing three balls : one red, one yellow, and one green. All balls are likely to be chosen. Shelly will choose one ball without looking in the bag. What is the probability that Shelly will choose the yellow ball out of the bag?A. 3/3B. 3/1C. 1/3D. 2/3 Question 18 (1 point)The payments for land, labor, capital, and entrepreneurial ability respectively areabRent, profit, wages, interestRent, interest, profit, wagesProfit, wages, rent, interestRent, wages, interest, profitNone of thesed Find X. Math its.com OK!!! I NEED HELP AGAIN AND ITS HONESTLY SUPER EASY :/ I DONT KNOW WHY IM NOT doing it BY MYSELF BUTTTTT---- GIVING BRAINLIEST, FIVE STARS AND THANKSSS!Which measurement is most accurate to describe the amount of water a bucket could hold?3 gallons5 pints30 fl. oz.10 cups hey um i need help with this project its about the 3 kingdoms of egypt I need help with learning systems of equations