Which of the following equations have exactly one solution?
Choose all answers that apply:
Choose all answers that apply:

(Choice A)
A
-19x-18=-19x+18−19x−18=−19x+18minus, 19, x, minus, 18, equals, minus, 19, x, plus, 18

(Choice B)
B
-19x+18=-19x+18−19x+18=−19x+18minus, 19, x, plus, 18, equals, minus, 19, x, plus, 18

(Choice C)
C
19x-18=-19x+1819x−18=−19x+1819, x, minus, 18, equals, minus, 19, x, plus, 18

(Choice D)
D
19x+18=-19x+1819x+18=−19x+18

Answers

Answer 1

Answer:

Options C and D.

Step-by-step explanation:

Choice (A).

-19x - 18 = -19x + 18

Here we are equating two equations,

y = -19x - 18

y = -19x + 18

Since slopes of these equations are same as (-19), both are parallel.

Therefore, there is no solution for the given system of equations.

Choice (B)

-19x + 18 = -19x + 18

Equations are,

y = -19x + 18

y = -19x + 18

Since both the equations represent the same line, so the system of equations will have infinite solutions.

Choice (C)

19x - 18 = -19x + 18

System of equations is,

y = 19x - 18

y = -19x + 18

Slopes of both the lines are different (19 and -19)

Therefore, the system of equations will have exactly one solution.

Choice (D)

19x + 18 = -19x + 18

System of equations is,

y = 19x + 18

y = -19x + 18

This system of equations have the different slopes.

Therefore, the system of equations will have exactly one solution.

Answer 2

Answer:

It got B and D

Step-by-step explanation:

....

......

sorry if it’s wrong

actauloy edit there is two of them and one of them is this answer and one of them is another one so take your luck and make sure to match up the numbers


Related Questions

what is 2x+3=x+15 100 points i don't want points

Answers

anewr

you could caluta

Step-by-step explanation:

Answer:

X = 12

Step-by-step explanation:

2x + 3 = x + 15

2x + 3 = x = -3

-3 + 15 = 12

So X = 12

Hope I helped!

Have a good day. =)

Need help ASAP. WILL MARK BRAINLIEST.

Answers

Answer:

2, 18, 56.52, It will double as well.

Step-by-step explanation:

First, multiply the radius by 9 to get the diameter, 18 inches. Then, multiply the diameter by 3.14(an approximation for pi) to get a circumference of about 56.52 inches.

If the diameter is doubled what happens to the circumference? Explain.

It will double because its like a second layer is added on,  and 56.52 x 2 = 113.04, which would be the doubled circumference.

Hope this helps! :)

Can anybody find the measure of angle LMP as well as the measure of arc MN? Im lost...


click on image for full picture

Answers

Answer:

96 degrees

Step-by-step explanation:

When finding the arc from a non central angle, multiply it by 2

Han is hiring laborers to cut down and remove 8 large trees from his
lot. Company A charges a flat rate of $1,000 for one full day of work
with 4 laborers. They guarantee the work will be done in 1 day or
additional days will be free. Company B charges a flat equipment fee
per day of $200. plus $90 per tree. They do not guarantee the work will
be done in 1 day. Which company should Han choose? Why?​


please help me

Answers

company a

Step-by-step explanation:

if the work for company b takes more than two days is gonna be more than 1,000 dollars and if he pick company a he would owe 1,000 no matter how many days it takes

Subtract 6
24
18
12
?
DONE

Answers

Answer

6

we keep subtracting by 6

12-6 = 6

A = 6

What are the three cues to remember for dribbling with mature form in basketball?

Answers

Answer:

Thee three cues are

1. Control the ball with he finger-pads

2. Always dribble at waist level

3. One's eyes should be up to see the team members and defenders while dribbling

Step-by-step explanation:

To dribble a basketball requires, keeping one's head up to see the on going game around. Endeavor to shield defenders from the ball with the aid of the non dribbling arm and body

When bouncing the ball, keep it low, and extend the arms and snap the wrists, while controlling the ball with your fingers rather than the palm

The three cues are

1. Handle the ball with the finger pads, not with the  palm of the hands nor with the fingertips

2. Dribbling should be done only at the waist level  

3. When dribbling a ball, one should keep his eyes up to see the game ongoing.

Hi there! I need some help with this question, thx!


In the table, Pattern A uses the rule "add 5" and Pattern B uses the rule "add 15."

Pattern A is 0, 5, 10, 15, 20
Pattern B is 0, 15, 30, 45, 60

Which statement is true?


A. Every term in Pattern B is 3 times the corresponding term in Pattern A.

B. Every term in Pattern B is 10 more than the corresponding term in Pattern A.

C. Every term in Pattern B is 5 times the corresponding term in Pattern A.

D. Every term in Pattern B is 13 the corresponding term in Pattern A.

Answers

Answer:

sky im going with A

Step-by-step explanation:

A I took the test it is correct

The two-way table of column relative frequencies below shows data on whether or not a person has internet access and their preferred method to communicate with friends.

Based on the data, which of the following statements must be true?

(Choice A)
A person who prefers to communicate with friends in person is more likely to have no internet access than to have internet access.

(Choice B)
A person with internet access is more likely than a person without internet access to prefer the wired telephone to communicate with their friends.

(Choice C)
A person with internet access is more likely than a person without internet access to prefer text messaging to communicate with their friends.

(Choice D)
More people without internet access prefer using social networking than people with internet access.

Answers

Answer: c

Step-by-step explanation: 54% of people with internet access prefer text messaging, while only 31% of people without internet access prefer text messaging.

Based on the data, Option (c) statements must be true. "A person with internet access is more likely than a person without internet access to prefer text messaging to communicate with their friends."

What is internet speed?

It is Mbps or kbps of data packets that can be transferred within a specified time.

Because 54% of the people who have internet access uses the text messaging method While 31 % people with no internet access uses the text messaging method.Thus A person with internet access is more likely than a person without internet access to prefer text messaging to communicate with their friends.

Learn more about internet speed,

https://brainly.com/question/13308791

#SPJ2

how many grams each of a 10% salt solution and a 5% salt solution must be mixed in order to obtain 400g of an 8% solution?

Answers

I dont want to give you the exact equation so u wont be copying- here is an example.

let x=grams of salt that you already have

let y=grams of salt that need to be added

let z=total amount of salt in the solution after adding salt

We know that salt makes up 25% of the 400g solution, and that 25% can also be written as .25. Thus, we can write an equation to determine x's value:

x=.25*400g

x=100g

Therefore, there are 100 grams of salt already in the solution.

Now that we've determined x's value, we'll bring z into the equation. There are two ways to calculate z. z is equivalent to the sum of x and y. Remember, x is equal to 100 grams. So, z's equation is as follows:

z=100g+y

The other way to calculate z is as a percentage of the final solution. As the question states, we want the final solution to have a salt content of 40% (which we can write as .40). The final amount of solution can be written as below:

400g+y=total amount of solution after adding salt.

This is because we are adding y (the amount of salt needed to bring the salt content to 40 percent)to the amount of solution which we already have.

Therefore, the second way to express z is below:

z=.40*(400g+y)

After we have two equations for z, we can set them equal to each other as follows:

100g+y=.40*(400g+y)

We then can distribute the .40 over the parenthesis.

100g+y=160g+.40y

And then we can subtract 100 grams from both sides of the equation.

y=60g+.40y

Next, we subtract .40 y from both sides of the equation to get y on one side.

.6y=60g

Finally, we can divide both sides by .6 to isolate y.

y=100g

Therefore, you must add 100g of salt to the solution to make it 40 percent salt.

DID I DO IT RIGHTT?? pls tell me

Maria lines up fabric squares in rows to make a quilt. She uses the same repeating pattern for all the rows. The rule is "Red, White, Blue, White, Floral." If there are 125 quilt squares in the quilt, how many floral quilt squares will Maria need? Enter your answer in the box.

Answers

Answer: 15

Step-by-step explanation:

the patern is

red

white

blue

white

floral.

So in each group of 5, we have one floral quilt square.

now, in 125 quilt squares, we want to find the number of groups of 5 that we can make with thos 125 quilt squares.

This is 125/5 = 15

So we have 15 groups of 5 quilt square.

And we know that in each of those groups, we have one floral quilt square.

So we have a total of 15*1 = 15 floral quilt squars.

Answer: 25

Step-by-step explanation: 125 quilt square in group of 5

125/5 = 25

Each group of 5 os 1 floral quilt so there are 25 floral quilts in total

A bicycle shop is selling $500.00 bikes. If the sales tax is 7%, what will the final cost of the bike be?

Answers

Answer:

The final cost of bike = $535.00

Step-by-step explanation:

Cost of bikes =  $500.00

If the sales tax is 7%, the amount paid as tax will be 7% of the total selling price of bike;

7% of $500.00

= [tex]\frac{7}{100} * 500\\[/tex]

= $35

The final cost of bike = initial selling price + amount paid as tax

The final cost of bike  = $500.00 + $35.00

The final cost of bike = $535.00

Need question help here!

Answers

Answer:

C

Step-by-step explanation:

I need help plz help me

Answers

Answer: 2538

Step-by-step explanation:

12*21/2

126

126/1*41/2

2538

Answer:

l*b*h=2583m²

Step-by-step explanation:

note no need units, so no need metre square or m²

At the end of a snow storm, Caroline saw there was a lot of snow on her front lawn. The temperature increased and the snow began to melt at a steady rate. The depth of snow on Caroline's lawn, in inches, can be modeled by the function S(t)=-0.75t+15,S(t)=−0.75t+15, where tt is the time, in hours, after the snow stopped falling. What is the slope of the function and what is its interpretation in the context of the problem?

Answers

Answer:

-15

Step-by-step explanation:

Eduardo is filling containers with water to make lemonade. He filled 4 containers in 29 minutes, and each container holds 8.7 gallons. At what rate did Eduardo fill the containers?

Answers

Answer: 7.25 minutes per container.

Step-by-step explanation:

Your looking for a ratio of time per container. 29/4 is the given ratio it was simplified to 7.25/1. Or simply 29 divided my 4.

PLEASE HELP!!! 50 POINTS ILL GIVE BRAINLIEST TO FIRST CORRECT ANSWER!!

Answers

Answer:

[tex] \red{\bold {7x - 9y - 39 = 0}} [/tex]

Step-by-step explanation:

Line passes through the points

[tex] (3, \: - 2) =(x_1, \: y_1) \:\&\: (-6,\: - 9)= (x_2, \: y_2)[/tex]

Equation of line in two point form is given as:

[tex] \frac{y-y_1}{y_1-y_2} = \frac{x-x_1}{x_1-x_2} \\\\

\frac{y-(-2)}{-2-(-9)} = \frac{x-3}{3-(-6)} \\\\

\frac{y+2}{-2+9} = \frac{x-3}{3+6} \\\\

\frac{y+2}{7} = \frac{x-3}{9} \\\\

9(y+2) = 7 (x - 3)\\\\

9y + 18 = 7x - 21\\\\

7x - 9y - 21 - 18 = 0\\\\

\huge \purple {\boxed {7x - 9y - 39 = 0}} [/tex]

2x-y<5
[tex]2x - y \leqslant 5[/tex]

Answers

Answer:

Step-by-step explanation:

Please be sure to include the directions when you post a question.  I will assume you want to graph this inequality 2x - y ≤ 5.  

2x - y = 5 is a linear function whose graph is that of a straight line.  Because of the ≤ sign, the solution set includes all points on this straight line PLUS all  points below it.

x - intercept:  Set y = 0 in 2x - y = 5 and solve the resulting equation for x:

2x - 0 = 5.  Then x = 5/2, and the x-intercept is (5/2, 0).

y-intercept:  Set x = 0 and solve for y:  2(0) - y = 5:  y = -5.  Then the y-intercept is (0, -5).  

Plot both points (5/2, 0) and (0, -5).  Draw a solid line through them.  Shade the area BELOW this line.

Mario está aprendiendo a manejar un auto. El lunes 6 de abril ,el práctico 2 horas y cada día siguiente práctico 30 minutos más que el día anterior. ¿Cual fue la fecha del día que práctico 5 horas?

Answers

Answer:

Domingo 12 de abril

Step-by-step explanatio

El primer dia Lunes fueron 2 horas Martes fueron 30 munitos mas, ya son 2:30  Miercoles fueron otros 30 minutos mas, son 3 horas. Jueves y Vierns es una hora mas, porque cada dia es 30 minutos. que ya son 4 horas. y el sabado son 30 mas, y el domingo el practica 5 horas

Which are ways to decompose the composite figure into simpler shapes that you have area formulas for? Check all that apply.

Answers

Answer:

1st  and second, unless you have already learned area of trapezoids. If you have, add third

Step-by-step explanation:

Answer: this is ez its

first

second

third

Step-by-step explanation:

Please help!!!!!!!
Anyone help!

Answers

x=7

Step-by-step explanation:

median is the middle no.=6 and x

it will be 6+x=13

take 6 to the other side=7, hence x=7

Which expression is equivalent to 2(5 − 3x)?

Answers

Answer:

10-6x

Step-by-step explanation:

Hope this helped, have a great day! (mark brainliest if you want to help XD)

Answer:

10 - 6x

as 2 x 5= 10

and 2 x 3 = 6

10 - 6x

Step-by-step explanation:

16x^4y^2(9x^3y^4) fully simply

Answers

Answer:

[tex]=144x^7y^6[/tex]

Step-by-step explanation:

[tex]16x^4y^2\left(9x^3y^4\right)\\\mathrm{Apply\:exponent\:rule}:\quad \:a^b\cdot \:a^c=a^{b+c}\\x^4x^3=\:x^{4+3}\\=16y^2\cdot \:9x^{4+3}y^4\\\mathrm{Add\:the\:numbers:}\:4+3=7\\=16y^2\cdot \:9x^7y^4\\\mathrm{Apply\:exponent\:rule}:\quad \:a^b\cdot \:a^c=a^{b+c}\\y^2y^4=\:y^{2+4}\\=16\cdot \:9x^7y^{2+4}\\\mathrm{Add\:the\:numbers:}\:2+4=6\\=16\cdot \:9x^7y^6\\\mathrm{Multiply\:the\:numbers:}\:16\cdot \:9=144\\=144x^7y^6[/tex]

Answer:

Step-by-step explanation:

2 x(4−3xy^2)/y

Question 3- Please help. Find the area of the sector for the image below:

Answers

Answer:

The answer is 16.8 cm^ 2.

A dvd movie originally cost $24.99. It’s current price is $19.99. What is the percent of change rounded to the nearest percent?

Answers

Answer:

I think it would be 20%.

Step-by-step explanation:

$5 was taken off the original price, which is about 1/5 of $24.99. So, since 1/5 as a percent is 20%, I think the answer would be 20%.

I agree it would be 20%

Which is the solution to
2x − y = 1
4x + y = 11 ?
A) (−2, 3)
B) (2, 3)
C) (3, 2)
D) (3, −2)

Answers

Answer:

B

Step-by-step explanation:

2 x 2 = 4 - 3 = 1

4 x 2 = 8 + 3 = 11

I am not sure if this is right can someone check it ASAP please

Answers

Answer:

x=10

Step-by-step explanation:

3(4x-12) = 84

Divide each side by 3

3/3(4x-12) = 84/3

4x-12 =28

Add 12 to each side

4x-12+12 = 28+12

4x= 40

Divide each side by 4

4x/4 = 40/4

x = 10

what’s the answer for this question

Answers

Answer:

What is the perimeter? 89 cm

Step-by-step explanation:

(35.2 + 11.9) + (35.2 + 12.7)

= 47.1 + 47.9

= 89 cm

A cylinder has a base diameter of 14m and a height of 10m. What is its volume in cubic m, to the nearest tenths place?

Answers

Answer:

  1539.4 m³

Step-by-step explanation:

The volume of a cylinder is given by the formula ...

  V = πr²h . . . . . where r is half the diameter and h is the height

__

Filling in the given values, we find the volume to be ...

  V = π(7 m)²(10 m) = 490π m² ≈ 1539.4 m³

The volume is about 1539.4 m³.

Jason runs 440 yards in 75 seconds.at this rate,how many minutes does it take him to run a mile​

Answers

Answer:

5 minutes

Step-by-step explanation:

Do a proportion

440/75= 1760/x

cross multiply

440x=1760(75)

simplify

132000/440

6) Troy has a garden that is 17 feet by 14 feet. He is planning on planting some
bulbs in the garden. Each bulb requires 2 square feet of space. How many bulbs
can Troy plant in the garden? *
119

Answers

Answer:

140

Step-by-step explanation:

first multiply 17 by 14 to get 238 then dived 238 by 2 to get 140

Other Questions
What might be collected to monitor the amount of excess nitrogen in the local water system Why would the author include this event in the biography?It describes Frida Kahlo's first experiences with painting.It describes Frida's family and friends.It describes Frida's feelings about her illness.It describes Frida's personality and appearance. concrete is poured to create a slab in the shape of a rectangular prisim the slab is 50 yards long 1.5 yards wide and 0.25 yard stick how many cubic squares of concrete are needed to create slab The relationship between how food is produced and the costs to the environment is that if the food produce organic and have more green environment, it'll not be bad for the environment because it will not cause the green house gas to increase and if the food produce in factory it will have toxin, fuels and other gases Definition of symbol What were the consequences of the Treaty of Versailles?- Think about your answer - what cause/s do you want to address? what consequences? - Identify what EVIDENCE you have to support your points. Make sure you have LOTS of specific examples. please help easy biology ANSWER FOR 5 PLEASE :)) How do I find the area ? Fultz Company has accumulated the following budget data for the year 2020. 1. Sales: 31,410 units, unit selling price $85. 2. Cost of one unit of finished goods: direct materials 1 pound at $6 per pound, direct labor 3 hours at $12 per hour, and manufacturing overhead $7 per direct labor hour. 3. Inventories (raw materials only): beginning, 10,120 pounds; ending, 15,480 pounds. 4. Selling and administrative expenses: $170,000; interest expense: $30,000. 5. Income taxes: 30% of income before income taxes.Prepare a schedule showing the computation of cost of goods sold for 2020. Do you believe that the law is totally fair and justified for everyone? Explain. Which characteristics can be used to classify the tree as a gymnosperm rather than any other type of seed plant?1. Naked seeds2.green leaves3. Thick bark4.tall height Can someone help me !plzz PLEASE HELP!! WILL GIVE BRAINLIEST IF RIGHTAn account earns annual simple interest, Find the interest earned, principal, interest rate, or time.Interest earned: ?Principal: $1250Interest rate: 3%Time: 4 years Which is a characteristic of diatoms?A)whip-like tailB)heterotrophicC)multicellularD)glass-ive cell wall Jeremy decides to make a model of the Earth. He makes his model by drawing the Earth on a sheet of paper. When he finishes his model, Jeremy notices that the shapes and sizes of the continents are not correct. He also notices that the Earth's surface is cut off at the edges of the drawing. Jeremy decides that he wants his model to be more accurate. How can Jeremy improve his model so that it is more accurate? A. Use a ruler to draw the continents with straight lines. B. Use a thicker piece of paper. C. Draw the Earth on a sphere. D. Draw the Earth smaller on the paper. Please tell me the answer quick. Thank you in advance. The space probe Deep Space 1 was launched on October 24th, 1998 and it used a type of engine called an ion propulsion drive. An ion propulsion drive generates only a weak force (or thrust), but can do so for long periods of time using only a small amount of fuel. Suppose the probe, which has a mass of 474 kg is travelling at an initial speed of 275 m/s. No forces act on it except the 5.60 x 10 N thrust from the engine. This external force is directed PARALLEL to the displacement. The displacement has a magnitude of 2.42 x 10 m. {PART A} Calculate the INITIAL kinetic energy of the probe [2 marks] {PART B} Find the work done BY THE ENGINE on the space probe [2 marks] {PART C} Calculate the FINAL KINETIC ENERGY of the probe (Hint W=E) [2 marks] {PART D} Determine the final speed of the probe, assuming that its mass remains constant [3 marks] Solve the system of equations using the elimination method 4x+5y=40 6x+3y=42 Solve the inequality Math question Base your answer to this question on the quote below. "In my turn, I stepped back. But in making the action, I detected in his eyes some latent fear of me. This put the monstrous thought to flight." This quote BEST serves to A.contribute to the rising action of the plot. B.foreshadow the death of the signalman at the hands of the narrator. C.add a dimension of uncertainty to the setting. D.add to the characterization of the ghost as the antagonist.