Solve the following system of equations by graphing.
y = -1/2 - 1
y = x - 4

Answers

Answer 1

Answer:

Convert Equation 1 to slope-intercept form.

y

=

x

+

4

The two equations have the same slope,  

m

=

1

, therefore they are perpendicular and there is no solution to this linear system. The two lines have no points in common.

graph{(x+y-1)(x+y-4)=0 [-10, 10, -5, 5]}

Step-by-step explanation:


Related Questions

Heres what i think of this gen z: Gay supporters girls who want boys to wear nail polish and when they say no the girls say girls will never like you and your so insecure when there just peewee 10 year olds and 16 year olds like imagine if they burned in flames forever that would be great they deserve cause people kill themsleves cause of them they are nothing but useless you think supporting something people hate is gonna change but it never will by your own desire you will see your won fate wither you want be with your family or not even if there dead and gone you may think why do people worship god but atleast there good people go do something useful in your life before its gone

Answers

Answer:

PrEaCh

Step-by-step explanation:

Answer:

so true

Step-by-step explanation:

What is the y intercept of the line 3y+8x-18=0?​

Answers

Answer: y= 8/3x + 6

Step-by-step explanation:

Find the scale factor


(-3,-12)--->(-2,-8)
(-6,-15)--->(-4,-10)
(-9,-12)--->(-6,-8)

Answers

Answer:

2/3 is the scale factor of the sequence

Which events are independent? Choose all that apply.
A. There is lightning outside. The baseball game is canceled due to lightning,
B. Ahmad flips a coin and records the result. Ahmad flips the same coin again and records the result.
O c. One name is randomly chosen from a bag. The name is not replaced and another name is randomly chosen
D. Jason votes for president of the city council in the morning. Hae Sung votes for president of the city council in the afternoon

Answers

Answer:

i'd say the answer is b. i hope this helps

Answer:

B,C,D

Step-by-step explanation:

How much is a 2/9 pound plus 1/9 pound?

Answers

Answer:

1/3 pound.

Step-by-step explanation:

2/9 pound +1/9 pound = (2+1)/9 pound.

This can be simplified to 3/9 pound, or 1/3 pound.

Let me know if this helps!

Answer:

33.333 percent

Step-by-step explanation:



A, B & C form the vertices of a triangle.

CAB = 90°, ABC = 60° and AB = 8.6.

Calculate the length of BC rounded to 3 SF.

BC =

Answers

Answer:

BC = 17.2.

Step-by-step explanation:

Since CAB = 90º, this is a right triangle.

The triangle format is given below:

C

A           B

We have that AB = 8.6, and angle B measures 60º.

Length of BC:

BC is the hypotenyse.

Side AB is adjacent to angle B = 60º.

In a right triangle, angle [tex]\alpha[/tex], it's adjacent side with length s and the hypotenuse h are related by the cosine of the angle, that is:

[tex]\cos{\alpha} = \frac{s}{h}[/tex]

In this question, we have an angle of 60º, with has cosine 0.5. We also have that side AB = s = 8.6, and the hypotenuse h is side BC. So

[tex]\cos{\alpha} = \frac{s}{h}[/tex]

[tex]0.5 = \frac{8.6}{h}[/tex]

[tex]0.5h = 8.6[/tex]

[tex]h = \frac{8.6}{0.5}[/tex]

[tex]h = 17.2[/tex]

BC = 17.2.

Plz guys help me I need help

Answers

Answer:

A. f(-1) = -3, f(7) = 13

Step-by-step explanation:

✔️When input (n) = -1:

f(n) = 2n - 1

f(-1) = 2(-1) - 1

f(-1) = -2 - 1 = -3

✔️When input (n) = 7:

f(n) = 2n - 1

f(7) = 2(7) - 1

f(-1) = 14 - 1 = 13

Pls someone help me!

Answers

Answer: Mark me brainliest..

Step-by-step explanation: and imma put the answer inside the comments if you do so. youve got nothing to lose! :D

-4x-y=24 complete the missing value in the solution to the equation

Answers

Answer:

point

Step-by-step explanation:

Determine whether the following is an example of a sampling error or a non sampling error. A psychiatrist surveyed 8000 people to see the proportion who had seen a psychiatrist at least once in their lives. Unfortunately, there was confusion amongst the respondents about the difference between a psychologist and a psychiatrist and the recorded proportion was higher than it should have been due to this confusion.

Answers

Answer:

The correct answer is - Non sampling error

Step-by-step explanation:

Sampling errors arises when a sample does not represent the whole population.

It is  difference between the real values of the population and the values derived by using samples from the population.

A non-sampling error refers to an error that occurs during data collection, causing the data to differ from the true values.

Non sampling error are of two types , response error and non response error.

In the given question , the error is a response error.

So , it is an example of Non-Sampling error.

algebra is hard

6-9y > 30-5y​

Answers

Answer:

y=6

Step-by-step explanation:

6-9y>30-5y,-9y+5y>30-6, -4y>24,-4y/-4so -will concel -and 4 will cancel 4>24/4=y=6

1.5.2. You have a six-sided die that you roll once. Let Ri denote the event that the roll is i. Let Gj denote the event that the roll is greater than j. Let E denote the event that the roll of the die is evennumbered. (a) What is PR3 jG1 , the conditional probability that 3 is rolled given that the roll is greater than 1

Answers

Answer:

What is PR3 jG1 , the conditional probability that 3 is rolled given that the roll is greater than 1

                            =0,02

Step-by-step explanation:

Sample Space for rolling a die, S(1,2,3,4,5,6]

Since all the outcomes are equally P( rolling any numebre)=1/6

G1=(2,3,4,5,6)

Hence P(G1) =P (R2)+P (R3)+P (R4)+P (R5)+P (R6)

Hence P(G1) =5/6

and R3= [3]

Hence G1  ∩ R3 =  [3]  =  R3

Hence P(G1  ∩ R3) =P( R3) =1/6

What is PR3 jG1 , the conditional probability that 3 is rolled given that the roll is greater than 1

P(G1  ∩ R3) / P(G1) = (1/6)/ (5/6=

                             =0,02

Which soap deal has the lowest price per ounce?


$5.50 for 13.0 oz

$5.75 for 14.0 oz

$3.45 for 3.5 oz

$5.25 for 12.0 oz

Answers

It’s option two

Explanation: Divide the price by the ounces and option is to w lowest answer.

Find the unit rate and determine which rate is greater: 500 miles in 10 hours or 125 miles in 2 hours.

Answers

Answer:

30 miles in 2.5 hours= 12 mph

Step-by-step explanation:

This is a fraction equal to

30 miles ÷ 2.5 hours

We want a unit rate where

1 is in the denominator,

so we divide top and bottom by 2.5

30 miles ÷ 2.5

2.5 hours ÷ 2.5

=  

12 miles

1 hour

=  

12 miles

hour

= 12 miles per hour

You owe $748.11 in taxes, and you have paid $692.40. Which statement best describes your refund/taxes due?

A): You owe an additional $55.71.
B): You will receive a refund of $55.71.
C): You owe an additional $155.71.
D): You will receive a refund of $155.71.

Answers

Answer:

A.

Step-by-step explanation:

748.11 - 692.40  = 55.71

so you will still owe 55.71

Answer:  A). You owe an additional $55.71.

Hope this helps :)

Sean wants to buy a DVD that sells for $12. An advertisement says that next week that DVD will be on sale for $9. How much money will Gavin save if he waits until next week to buy the DVD

Answers

Answer:

98

Step-by-step explanation:

Answer:

$3

Step-by-step explanation:

Pants at clothes 4 us are 20% off. with this dicount, the pants cost $25.60. what was the original price of the pants?​

Answers

Answer:

The answer is $30.72

Step-by-step explanation:

25.60 + 20% = 30.72

You have to divide 25.60 / 20% and that would be 5.12 so to the original answer 25.60 you add 5.12.

Final Answer

30.72

There are 23 animals in the barn. Some are chickens some are goats. There are 80 legs in all. How many of each animal is there?

Answers

There are 17 goats and 6 chickens

Explaining: (1)  C + G = 23

As for legs:

(2)  2C + 4G = 80 (each C has 2 legs and each G has 4 legs)

Solving equation (1):  C = 23 - G

Substituting in equation (2)

2(23 - G) + 4G = 80

2G = 34

G = 17

C = 6

There are 17 goats and 6 chickens pretty sure.

What is the radius?




Diameter =36ft




Answers

Answer:

18ft

Step-by-step explanation:

Diameter is double the radius.

36/2=18

Answer:

r = 18 ft

Step-by-step explanation:

The radius is 1/2 of the diameter

r = 1/2 d

r =1/2 ( 36 ft)

r = 18 ft

Suppose a car travels 174 miles in 3 ours. How far will it travel in 6 hours?

Answers

Answer: 348 miles

Step-by-step explanation:

The car will travel 174 miles in 3 hours, if you multiply 174 x 2, the car will travel 348 miles in 6 hours.

whats the GCF for 1248

Answers

Answer:

None or 12 depending on what the question is. See explanation below.

Step-by-step explanation:

If the number is 1248:

A single number cannot have a GCF. The GCF has be for at least two numbers.

If the numbers are 12 and 48, then the GCF can be calculated.

Since 12 is a factor of 48, then the GCF of 12 and 48 is 12.

In general, to calculate the GCF do this:

To calculate it, find the prime factors of 12 and 48.

12 = 2^2 * 3

48 = 2^4 * 3

GCF is the product of common factors with lower exponent.

GCF = 2^2 * 3 = 12

I try to find it but I could PLEASE help I’ll say the answer when I’m done

Answers

Answer: false

Step-by-step explanation:

Which numbered choice represents the solution to this system?

y=2x+4
-6x+3y=12

1) (2,8)
2) (-3,-2)
3) (0,4)
4) All are solutions.

Answers

Answer:4) All are solutions

A city’s elevation is 140.2 feet below sea level. Between which two integers does this elevation lie?

Answers

Answer:

The elevation lies between -140 and -141.

Step-by-step explanation:

The elevation lies between -140 and -141.

Quadrilateral ABCD with AB = 5.5cm, BC = 3.5cm, CD = 4cm, AD = 5cm, and <A = 45°.​

Answers

Step-by-step explanation:

hope it helps

mark me brainliest

what is the difference between 6 and 2 1/5.​

Answers

Answer:

3.8

Step-by-step explanation:

6 - 2 1/5 = 6 - 11/5

= 6-2.2

=3.8

The difference between the 6 and 2 1/5 will be 3.8

What is a fraction?

A fraction represents a part of a number or any number of equal parts. There is a fraction, containing numerator(upper value) and denominator(lower value).  When the numerator is less than the denominator, the fraction is called proper fraction, otherwise it is called improper fraction. A proper fraction is also called fraction which is less than 1. A mixed fraction contains a sum of whole number and a proper fraction.

So, WE need to find the difference between the 6 and [tex]2 \frac{1}{5}[/tex].​

First we need to convert the mixed fraction into simple fraction.

[tex]2 \frac{1}{5}[/tex] = 11/5

Therefore, the difference between them will be;

6 -  [tex]2 \frac{1}{5}[/tex]  = 6 - 11/5

= 6 - 2.2

= 3.8

Hence, the difference between the 6 and [tex]2 \frac{1}{5}[/tex] will be 3.8

Learn more about fraction;

https://brainly.com/question/729654

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To thank her five volunteers mai gave each of them the same number of stickers then she gave them each two more stickers altogether she gave them a total of 30 stickers

Answers

Answer:  4

Step-by-step explanation:

I got it right when i did my math

The equation which represents the given situation is 5(y + 2) = 30 and the value of y = 4.

What is an Equation?

An equation is the statement of two expressions located on two sides connected with an equal to sign. The two sides of an equation is usually called as left hand side and right hand side.

Given that,

Total number of volunteers = 5

Mai gave each of them the same number of stickers.

Let y be the number of stickers she gave to each of them.

Then she gave 2 more stickers to each of them.

Then number of stickers each has = y + 2

Total number of stickers = 30

5(y + 2) = 30

5y + 10 = 30

5y = 20

y = 4

Hence the number of stickers each one has is 4.

Learn more about Equations here :

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PLEASE ANSWER ASAP !!!!!!!!!!!!!!!!!!! WILL GET BRAINLEST IF CORRECT!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

both x angles are equal to 40 degrees

Answer:

x would equal 40

Step-by-step explanation:

a line is 180, the angle inside the triangle is 100 and x is on both sides that means x would equal 40 because there is 2 x's and 100 is already a number and 180 is a line.

180 = x + x + 100

x + x + 100 - 100 = 180 - 100

x + x = 80

2x = 80

2 ÷ 2x = 80 ÷ 2

x = 40

want to study procrastination and social anxiety levels in undergraduate students at your university.You send a group email to all students to sign up to be contacted about participating in research.Only 2000 students signed up to be contacted about participating in the research. You choose asample of 100 students using a simple random sample from the students who signed up. You assigna number to every student in the research participant database from 1 to 2000 and use an SRSmethod to select 100 numbers.Is this sample biased

Answers

Answer:

Yes.  There is a bias in the selected sample.

Step-by-step explanation:

Population of interest = undergraduate students at the university

Respondents to email requests = 2,000 students

Sample size = 100 students

Sample is based on the 2,000 respondents.

Therefore, sample is biased.

b) A sampling method is said to be biased if it systematically favors a group.  By making some members of the student population systematically more likely to be selected in a sample than others, there is an occurrence of sampling bias.  Usually, findings from biased samples can only be generalized to populations that share characteristics with the sample and to the entire population of interest.

Kimmie sells custom T-shirts for $12 each at the flea market every Saturday She usually sells 36 T-shirts Kimmie surveys her customers about whether they would buy her T-shirts at a different price. She determines that for every $1 increase in price she would sell two fewer T-shirts and for even $1 decrease in price, she would sell two more T-shirts, Which quadratic function can Kimmie use to model price increments vs. total income so that she can find the price at which her income is maximized?​

Answers

Answer:

y =  -2*x² + 60*x

Step-by-step explanation:

The general form of a quadratic function is:

y = a*x² + b*x + c

We need to determine a  ;  b  ;  and c. For that we have three conditions therefore

Condition 1       at  x = 12 $ each T-shirts kimmie sells 36 units, then she gets

12* 36 = 432 $    or      y  =  432   and

432 = a(12)² + 12*b + c      or   432 = 144*a + 12*b + c

Second condition   selling at 13 $ each T-shirt  she sells 34 , then

13*34 = 442

442  = a(13)²  +  13*b  + c    or   442 = 169*a + 13*b + c

And the third condition

11*38  = 418

418 = a* ( 121)  + 11*b  + c         418  =  121*a  +  11*b  + c

We have a three equation system

432 =   144*a + 12*b + c         (1)

442  =   169*a + 13*b + c       (2)

418 =    121*a  +  11*b  + c       (3)

We need to solve it for a,  b  and  c

Subtracting (2) - (1)        10 = 25*a  +  b    and subtracting (2) - (3)

24 = 48*a  + 2*b

Then       b  =  10 -  25*a         and     24  =  48*a + 2*( 10 - 25*a )

24  =  48*a +  20  - 50*a

24 -  20  =   -2*a

4  =  - 2*a    

a  = - 2      and   b =  10 - 25*( -2)     b = 60

Finally  c   is:    432 =   144*a + 12*b + c  

432  =  144* ( -2) + 12*60  + c

432  = -  288  +  720  +  c

432  = 432  + c

c =  0

The quadratic function is:

y =  -2*x² + 60*x

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