HELP!!!! how many solutions does this linear system have?

HELP!!!! How Many Solutions Does This Linear System Have?

Answers

Answer 1

Answer:

Yes. Your answer is correct. There is only one solution:. (1, -4).

Step-by-step explanation:

If you plug in 1 for x and -4 for y both sides of the equation are equal to each other. (Because the points are (x, y))

But any other answer is not right because when you plug in the answer the sides don't equal each other.


Related Questions


[tex](2x { - }^{1} ) { - }^{2} [/tex]

Answers

(2x^-1)^-2
= 1/(2x^-1)2
1/(4 x^-2)
X^2/4

(03.02 MC)The number of pages that Ana, Hillary, Roger, and Juan can read in a day is shown below:

Ana read 15% of her 46-page book.
Hillary read 11% of her 72-page book.
Roger read 12% of his 68-page book.
Juan read 14% of his 69-page book.

Who can read the greatest number of pages in a day?

plz explain your answer

Answers

Answer:

Juan

Step-by-step explanation:

The number of pages that Ana, Hillary, Roger, and Juan can read in a day is shown below:

For Ana

Ana read 15% of her 46-page book.

= 15% × 46 pages

= 6.9 pages

For Hillary

Hillary read 11% of her 72-page book.

= 11% × 72 pages

= 7.92 pages

For Roger

Roger read 12% of his 68-page book.

= 12% × 68 pages

= 8.16 pages

For Juan

Juan read 14% of his 69-page book.

= 14% × 69 pages

= 9.66 pages

The person who can read greatest number of pages in a day also means the person who read the highest number of pages in a day.

From the calculation above, that person in JUAN because she can read 9.66 pages of her book in one day.

Answer:

juan or D

Step-by-step explanation:

took the test

How to know when a parallelogram is a rectangle

Answers

Answer:

Please check explanations for answer

Step-by-step explanation:

Here, we want to know when a parallelogram is a rectangle

There are some properties to be satisfied by the parallelogram to know it is a rectangle

If the parallelogram in question has diagonals that are equal in length, meaning that the by are congruent, then we can say is it a rectangle

Also, the parallelogram must contain four right angles for use to say it is a rectangle

What is the number of cycles of y=1/8cos(5θ+π/6)+3 between 0 and 2π?

Answers

You are correct. The answer is B) 5.

This is because the period here is T = 2pi/5

Multiplying 5 with this period leads to 5*(2pi/5) = 2pi; showing that 5 full cycles occupy a total horizontal width of 2pi units (more specifically stretching from 0 to 2pi).

Please help look at the picture attached

Answers

Answer:

17

Step-by-step explanation:

Graph the line y= -3/2x + 1

Answers

Answer:

Step-by-step explanation:

The graph of y= -3/2x + 1 is given in attachment with slope -3/2.

What is Slope of Line?

The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.

The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.

The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is

m=y₂-y₁/x₂-x₁

The given line is  y= -3/2x + 1

slope is -3/2

We have to find few values of x and y.

When x=0

y=1

When x=1

y=-1/2

When x=2

y=-2

Hence, the graph of y= -3/2x + 1 is given in attachment with slope -3/2.

To learn more on slope of line click:

https://brainly.com/question/14511992

#SPJ5

y is inversely proportional to the square of x.

A table of values for x and y is shown.

Х| 1 2 3 4
Y| 4 1 4/9 1/4

a) Express y in terms of x.
b) Work out the positive value of x when y = 25

Answers

Answer:

[tex]a) \: y = \frac{4}{ {x}^{2} }[/tex]

[tex]b) \: x = \frac{2}{5} [/tex]

Step-by-step explanation:

Please see the attached pictures for the full solution.

s = -t³ + 2t² - 2t, 0 ≤ t ≤ 2 Find the body's speed and acceleration at the end of the time interval. *

A) -6 m/sec, -8 m/sec²
B) 6 m/sec, -8 m/sec²
C) 6 m/sec, -2 m/sec²
D) 2 m/sec, 0 m/sec²

Answers

Answer:

A

Step-by-step explanation:

the end of interval is t=2

v=s'= -3t^2+4t-2

v(2)= -3(2^2)+4(2) -2

v(2)=-12+8-2

v(2)= -6m/s

so tje ans is A

Write the expression as a single natural logarithm.
3lnm+4lnn

Answers

Answer:

We conclude that:

[tex]3\ln \left(m\right)+4\ln \left(n\right)=\ln \left(m^3n^4\right)[/tex]

Step-by-step explanation:

Given the expression

[tex]3\ln \left(m\right)+4\ln \left(n\right)[/tex]

Apply log rule:  

 [tex]a\log _c\left(b\right)=\log _c\left(b^a\right)[/tex]

So the expression becomes

[tex]3ln\:m\:+\:4ln\:n=\ln \:\left(m^3\right)+\ln \:\left(n^4\right)[/tex]

Apply log rule:

[tex]\log _c\left(a\right)+\log _c\left(b\right)=\log _c\left(ab\right)[/tex]

so the expression becomes

                           [tex]=\ln \left(m^3n^4\right)[/tex]

Therefore, we conclude that:

[tex]3\ln \left(m\right)+4\ln \left(n\right)=\ln \left(m^3n^4\right)[/tex]

Find the value of x in each case. Give reasons to justify your solutions! XW ∥ YZ

Answers

Answer:

The answer is "19".

Step-by-step explanation:

In this question, the graph file is missing which is defined in the attached file please find it.

When YZ and XW were identical,  

[tex]\angle XWY =\angle WYZ \ \ \text{(Alternate Angles)}[/tex]

[tex]\angle XWY = 2x[/tex]

Because the angles are all 180 degrees in either a triangle:

[tex]\to (3x - 5) + 90 + 2x = 180\\\\\to 3x - 5 + 90 + 2x = 180\\\\ \to 5 x + 85= 180 \\\\ \to 5 x = 180-85 \\\\ \to 5x = 95 \\\\ \to x= \frac{95}{5} \\\\ \to x = 19[/tex]

The answer above is accually correct, but always remember when submitting your answer to always put the degrees sign.

4. Find the value of a, for which point p (a/3,2) is the midpoint of the line segment
joining the points Q (-5, 4) and R(-1,0).​

Answers

Answer:

a = -9

Step-by-step explanation:

P(a/3 , 2) is mid-point of Q (-5 , 4) and R (-1 , 0)

a/3 = (-5 + (-1))/2 = -6/2 = -3

a = -9

Select the correct answer.
What are the values of x and y if this equation is true?
22(X+yi)+(28+4i)=72-62i)

Answers

Answer:

[tex]\huge\boxed{x=2\ and\ y=-3}[/tex]

Step-by-step explanation:

[tex]22(x+yi)+(28+4i)=72-62i\\\\22x+22yi+28+4i=72-62i\\\\(22x+28)+(22y+4)i=72-62i\Rightarrow22x+28=72\ \wedge\ 22y+4=-62\\\\22x+28=72\qquad|\text{subtract 28 from both sides}\\22x=44\qquad|\text{divide both sides by 22}\\\boxed{x=2}\\\\22y+4=-62\qquad|\text{subtract 4 from both sides}\\22y=-66\qquad|\text{divide both sides by 22}\\\boxed{y=-3}[/tex]

what is the lcm of 28xy2 and 42x²y​

Answers

hey the answer is
84x2y2
hope this helps !

Pleaseeeee helpppp

What is the slope-intercept form of the function graphed below?

Answers

Answer:

f(x)=-1/2x+1

i would explain but i cant right now. Try Kahn academy as he explains very well

Step-by-step explanation:

which one is greater 0.503 or 0.53

Answers

Answer:

0.53

Step-by-step explanation:

Hope this helps.

Can someone help me on this I’m stuck I’ll give brainliest

Answers

Answer:

1: The car is moving at a constant speed

2: The car is stopped

3: The car is decreasing in speed

Step-by-step explanation:

1. It's moving at a constant speed as it's moving up in a straight line

2. It's stopped because the line is flat

3. It's slowing down as the slope is getting smaller

What are the coordinates of the point on the directed line segment from (3, -3) to
(7,5) that partitions the segment into a ratio of 5 to 3?

Answers

Answer:

(5.5, 2)

Step-by-step explanation:

Points given:

(3, -3) and  (7,5)

Partition ratio:

5 to 3

Formula for the point:

x = x1 + a/(a+b)×(x2 - x1) y = y1 + a/(a +b)×(y2 - y1)

So the points are:

x = 3 + 5/(5+3)×(7-3) = 3 + 5/8×4 = 5.5y = -3 + 5/8×(5 - (-3)) = -3 + 5/8×8= 2

Answer:

(5.5,2)

Step-by-step explanation:

I will mark brainlist for this science question please. I need to figure out where to put where. And what percentages. Your choices of percentages is 0, 25, 50, 75, and 100.

Answers

Answer:

Long wings: 0

Short wings: 100

Step-by-step explanation:

Genotype of the flies: ww

The cross will yield the genotype ww and the flies will express the recessive phenotype which is short wings.

The probability for long wings will be 0 as there is no dominant allele present. The probability for short wings will be 100 as all the flies will have short wings.

Hope that helps.

Find the value of x. Diagram is not to scale

Answers

Answer:

b: 70

Step-by-step explanation:

45+45=90

24+24=48

The scale of the triangle is 2

35*2=70

Which equation is equivalent to 3 + 5(x + 2) = 12? A 8x + 16 = 12 B 8x + 2 = 12 C 5x + 5 = 12 D 5x + 13 = 12​

Answers

Answer:

D 5x + 13 = 12

Step-by-step explanation:

3 + 5(x + 2) = 12

3 + 5x + 10 = 12

5x = -1

x = -1/5

D) 5x + 13 = 12

5x = 12 - 13 = -1

x = -1/5

Linear equation of 5x-2y=40 and 2y+10x-6=0

Answers

Answer:

linear equation for 2y+10x=60 is y=-5x+30 .. the other one is invalid

Step-by-step explanation:

If
f(x) = x?+ 2x- 4
and
g(x) - 3x+ 1
Find
g(f(3) = [? }+x +

Answers

Step-by-step explanation:

(g o f)(x)

= g(x² + 2x - 4)

= 3(x² + 2x - 4) + 1

= 3x² + 6x - 11.

F(x) = x^2 + 2x - 4

G(x) = 3x + 1

Find g(f(x))

- when it says g(f(x)), this means that you plug in the equation or value you were given for f(x) into EVERY x-value seen in the g(x) equation.

-in the g(x) equation (3x + 1) you were given ONE x-value.

So...

-you replace the x with the f(x) equation which is, x^2 + 2x - 4 (as shown below)

g(f(x)) = 3(x^2 + 2x - 4) + 1

• then distribute the 3 on the outside of the brackets with each number inside the bracket

= 3x^2 + 6x - 12 + 1

• add all the like terms up and you should get your final equation

= 3x^2 + 6x - 11 OR 3x^2 + 6x + (-11)

*Remember to always follow the BEDMAS or PEDMAS rule

I hope this helps. If you have any questions please let me know in the comment section.

plss help I don’t understand it it’s for homework

Answers

Answer: r= -3

Next 3 terms following 54 are -162, 486, -1458

Step-by-step explanation:

Does 2x-x equal to 2x or x? I thought it would be x, but in a video I'm watching for school, it says 2x.

Answers

Answer:

i also would say x maybe school did a mistake

The soccer coach wants to take the team out for pizza after the game. He wishes to spend no more than $60. Large pizzas, p, cost $12 each and sodas, s, cost $1.25 each.

Answers

Answer:

i will solve it below

Step-by-step explanation:

12.00 + 1.25

13.00

60.00 - 13.00 = 47.00

your welcome

Answer:

$12p plus $1.25s≤60

Step-by-step explanation:

Because we are multiplying to see how many pizzas and sodas he will get for under 60 dollars or equal to $60

use the graph below to find the x and y incerpts

(the second picture has the options)

Answers

Step-by-step explanation:

answer 2. should be right

2. Is the point (-3,-4) the solution to the system of
equations: SHOW ALL YOUR WORK.

Answers

Answer:

y = 2x + 2

-4 = 2(-3) + 2

-4 = -6 + 2

-4 = -4

y = x - 1

-4 = -3 - 1

-4 = -4

It is the solution

Step-by-step explanation:

Answer: Yes, it is the solution to the system.

=========================================================

Explanation:

The point (-3,-4) means that x = -3 and y = -4 pair up together.

Let's plug those values into the first equation and simplify

y = 2x+2

-4 = 2(-3)+2 .... replace x with -3; replace y with -4

-4 = -6+2

-4 = -4 ... we get a true equation

Let's repeat for the other equation as well

y = x-1

-4 = -3-1

-4 = -4 .... this is also true

Since both equations are true, this means (-3,-4) is the solution to the system. The two lines intersect at (-3,-4).

all of them as single rational number​

Answers

Answer: 2 is -1.25

Step-by-step explanation:

A player hits a baseball with an initial velocity of 117 ft/sec at an elevation angle of 50°. When struck, the baseball is 2 feet above the ground. What is the maximum height the baseball reaches?

Answers

Answer:

126

Step-by-step explanation:

uhhhhh straight up guessed, but yeah heres the answer

Answer:

is is 126 got it right on edge

Step-by-step explanation:

SOS! PLEASE HELP ME!!
The graph shows the cost of buying tickets to a concert.
a. What does the point (4,122) represent?
b.What is the unit rate?
c.What is the cost of buying 10 tickets?

Answers

Answer:

a) The point (4, 122) represents that the cost of 4 tickets is $122

b) The unit rate is 30.5 dollars per ticket

c) The cost of buying 10 tickets is $305

Step-by-step explanation:

Let us solve the question

From the given graph

∵ The x-axis represents the number of tickets

∵ The y-axis represents the cost of tickets in dollars

∴ The line represents the relationship between the number of tickets

   and their cost

a)

∵ The point (4, 122) lies on the line

∴ x = the number of tickets

∴ y = their cost

x = 4 and y = 122

∴ The cost of the 4 tickets is 122 dollars

The point (4, 122) represents that the cost of 4 tickets is $122

b)

∵ The unit rate is the slope of the line

The slope of the line = Δy/Δx, where

Δy = y2 - y1 Δx = x2 - x1

∵ The line passes through points (0, 0) and (2, 61)

x1 = 0 and x2 = 2

y1 = 0 and y2 = 61

→ Substitute them in the rule of the slope above

The slope of the line = [tex]\frac{61-0}{2-0}[/tex] = [tex]\frac{61}{2}[/tex] = 30.5

The unit rate is 30.5 dollars per ticket

c)

∵ The linear equation is y = m x + b, where

m is the slope of the line b is the y-intercept (value y at x = 0)

m = 30.5 ⇒ the slope of the lone

b = 0 ⇒ The line passes through the origin point (0, 0)

∴ The equation of the line is y = 30.5x

x = 10 ⇒ number of tickets

→ Substitute x by 10 in the equation to find the cost of 10 tickets

∴ y = 30.5(10)

y = 305

The cost of buying 10 tickets is $305

Other Questions
The results of nineteenth century urban reforms enumerate the the risk in the preparation and cooking in starch and cereal dishes and other food During the Gilded Age, factories hired unskilled workers to operate machines. help skilled workers. manage the business. use special tools. What happened between 1820 and 1914? What was this called? What were the Cherokee people best known for? 1:30 o clock in words The reaction 2KBr(s) + Br2(l) + 2K(s) is a Decomposition reaction Create a series of yes/no questions that will help someone looking only at the DNA to determine if a cell is eukaryotic or prokaryotic. Your key must have three questions and must come to a definite conclusion (specifically, "the cell is eukaryotic" and "the cell is prokaryotic"). Drag each question to its correct location. A bag of letter tiles includes 15 vowels and 25 consonant. What is the probability of selecting two vowels one after another?ANSWER ASAP FOR 40 POINTS!!!!! hello so I'm writing for a discussion but I'm having brain drain, so would anyone be willing to give something to write? here is the discussion topic or whateverDiscussion TopicMany different traits make up a culture. During an exchange known as cultural diffusion, some of those traits are spread from one culture to another. How do you think cultural diffusion works? How might a trait travel over great distances? What cultural traits do you think are the most likely to be passed from culture to culture?and my pea brain cannot answer this, as i said earlier, I'm going through brain drain. Thank you help please and thank youuu Mr. T's Tea store has two kinds of tea. Tea A costs $9 per pound and Tea B cost $6 per pound. How many pounds of each should be combined to obtain 150 pounds of tea worth $8 per pound? Mrs. Calabash is completing a unit on ecology with her second grade class. She asks them to illustrate the vocabulary terms which have been used in the unit. Barry draws a herd of zebras. Which term is Barry most likely illustrating Select the correct answer.How did the Battle of Tippecanoe affect the War of 1812?.It led Tecumseh to give up his support for the British against the Americans.OB.It led Tecumseh to fight against the United States as an ally of the British.OC.It led the United States to sign a peace treaty with the American Indians.D.It led the Americans to sign the Treaty of Ghent to make peace with the British. PLZ HELP THIS ENDS TODAYDuring slide show mode, hitting the B key will do which of these?End your presentationBlank the screen with black screenMove back one pageMove to the first page of your presentation x = 1x = 2x = 3x = 4 Hello please help me Savannah wants to buy a new tablet that costs $140. She has a coupon expiring this week that is for 15% off any item. Next week, the tablet will be on sale for $125. When is it a better deal for Savannah to purchase the tablet, and why? Please help!!! ASAP! just want a ride with Steam Workshop Downloader