Select the correct answer from the drop-down menu. Consider this system of linear equations: y − x = -13 -4x + 3y = -51 The solution of the system of equations is .

Answers

Answer 1

Answer:

b

Step-by-step explanation:

Answer 2

Answer:

its b

Step-by-step explanation:


Related Questions

The circumference of the base of the cone is 8.5 inches. What is the volume of the cone in term of pi? Round to the nearest hundredth

Answers

Answer:  V = 270.94/pi

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

Work Shown:

C = 2*pi*r  ......... circumference of the circular base

r = C/(2pi)

r = (8.5)/(2pi)

r = 4.25/pi

-------------

V = pi*r^2*h ...... volume of the cone

V = pi*(4.25/pi)^2*15

V = pi*(18.0625/pi^2)*15

V = (18.0625*15)/pi

V = 270.9375/pi ..... exact volume in terms of pi

If we round that decimal number up top to the nearest hundredth, then we end up with V = 270.94/pi

find the equation of common tangent of x²+y²=4ax and y²=4ax.​

Answers

Step-by-step explanation:

x² +4ax+y² =0

x² +4ax+4a² +y² =4a²

(x+2a) ² +y² =4a² ......(i)

y² =4ax.........(ii)

By tracing the circle and the parabola we can clearly see that they touch each other along the y axis

So the equation of common tangent is x=0.

Un ganadero está reparando una mezcla de avena y harina de maíz para ganado. Cada onza de avena proporciona 4 gramos de proteína y 18 gramos de carbohidrato; una onza de harina de maíz proporciona 3 gramos de proteína y 24 gramos de carbohidratos.
¿Cuántas onzas de cada uno se pueden usar para satisfacer las metas nutricionales de 200 gramos de proteína y 1320 gramos de carbohidrato por ración?​

Answers

Answer:i love you

Step-by-step explanation:

Andy's average driving speed for a 4 hour trip was 48 miles per hour. During the first 3 hours he drove 50 miles per hour. What was his average speed for the last hour on his trip.

PLEASE HELP AND SHOW WORK YOU WILL GET BRAINLEST MARK

Answers

Answer:

Step-by-step explanation:

Distance = 48 * 4

Distance = 192

~~~~~~~~~~~~~~~

3*50 = 150

192 - 150 = 42

42 MPH for the last hour

(») Evaluate the expression.
* * (4 + 8)

Answers

Answer:

6

Step-by-step explanation:

work out the brackets first....4+8=12

the multiply 1/2 by 12

1/2 x 12 = 6

2x-4=20
Please fast with steps !

Answers

Answer:

x=12

hope it will helpful to you

Select the correct answer.
Given: ABC with DE||AC
Prove: AD/DB = CE/EB​

Answers

Answer:

AB/DB = CB/EB

Step-by-step explanation:

This is the answer on Pluto. I got lucky when I guessed

The solution is given below.

What is alternate angles?

The alternate exterior angle theorem states that if two lines are parallel and are intersected by a transversal, then the alternate exterior angles are considered as congruent angles or angles of equal measure.

Here  given:  

AB II DE, AC = CE

Now, in ΔABC and ΔEDC

As,  AB II DE (given)

⇒∠BAC = ∠CED   (Alternative pairs of angles)

and  ∠ABC = ∠CDE  (Alternative pairs of angles)

and AC = CE (given)

So, by the congruent  property of AAS

(ANGLE ANGLE SIDE) which states that two triangle are congruent if two angles and one side of one triangle is equal to the two angles and one side of the other triangle.

                               ΔABC ≅  ΔEDC

to learn more on alternate angle click:

brainly.com/question/7197938

#SPJ7

complete question:

Given: AB II DE, AC = CE

Prove: A ABC = A EDC

What is the volume of the cone? Use 3.14 for π

Answers

Answer:

What is the height, radius or diameter of the cone?????

Selena Gomez is running the Gary Mintz Marathon. After 6 miles, Selena Gomez's clock reads 48 minutes. If Selena Gomez maintains her current pace, what will her clock read at 20 miles? You can use the table below to calculate her times.
A : 56
B: 160
C: 140
D: 96

Answers

Answer:

The answer would be C: 140.

7) -4 = 2(b + 5)
please help!

Answers

Answer:

b = -7

Step-by-step explanation:

Let's solve your equation step-by-step.

−4 = 2(b + 5)

Step 1: Simplify both sides of the equation.

−4 = 2(b + 5)

−4 = (2)(b) + (2)(5)(Distribute)

−4 = 2b + 10

Step 2: Flip the equation.

2b + 10 = −4

Step 3: Subtract 10 from both sides.

2b + 10 − 10 = −4 − 10

2b = −14

Step 4: Divide both sides by 2.

[tex]\frac{2b}{2} = \frac{-14}{2}[/tex]

b = -7

Hope this helps, please mark brainliest if possible. Have a great day! :)

PLS HELP I WILL GIVE BRAINLIEST

Answers

Answer:

80°

Step-by-step explanation:

So as you can see, the givin angle is 100°. So that must mean that angle DBF is 80° because they are supplementary angles. (Together they equal 180°) And sense the pair of lines are parallel, and x is the smaller angle so it is 80°.

Hãy giải giúp tôi câu tính giới hạn này

Answers

Answer:

Step-by-step explanation:

If a total of 360 students were involved in the evening's activities, how many students attend the school?

Answers

390

360 = 12x/13
30 = x/13
390 = x

The population of a rabbit colony triples each month.

The population started with 5 rabbits. How many

rabbits are there after 6 months?

Answers

Answer:

3645 rabbits after 6 months.

Step-by-step explanation:

The population of a rabbit colony triples each month.

This means that the population of the colony after t months is given by:

[tex]P(t) = P(0)(3)^t[/tex]

In which P(0) is the initial population.

The population started with 5 rabbits.

This means that [tex]P(0) = 5[/tex]

So

[tex]P(t) = 5(3)^t[/tex]

How many rabbits are there after 6 months?

This is P(6). So

[tex]P(6) = 5(3)^6 = 3645[/tex]

3645 rabbits after 6 months.

don’t understand this help please

Answers

Step-by-step explanation:

Since he sold $70,834 worth of cars, he earned an extra 5% commission on the sale. That means he got

0.05×($70,834) = $3,541.70

Therefore, his salary for the month m is

m = $2250 + 0.05s = $2,250 + $3,541.70 = $5,791.70

What is the solution of the equation x2 + 4x + 10 = 0?

Answers

Answer:

The answer for thid equation is x = -5/3

Yes i give brainliest​

Answers

D

It can give some balls more chance to be picked, making it unfair

ASSESSMENT:
Act as the person in the problem Do the activity. Record your
findings then answer

1. A farmer placed 250 mangoes in a crate, these are 150 ripe and 100 unripe
mangoes, his wife randomly selected 80 mangoes, she got 50 ripe mangoes
and 20 unripe mangoes, find the experimental probability of the mangoes she
selected.

2. A table tennis player has 40 orange table tennis balls, 30 white and 20 yellow
table tennis balls. After selecting 18 balls, he found out that he got 6 white
table tennis balls. Find out the experimental probability of getting white table
tennis table tennis balls.

please answer this ​

Answers

Answer:

in 1st his wife selected 80 mangoes 50 ripe and 20 unripe how it can be

Step-by-step explanation:

50+20=70 not 80

please share the correct question than I may help you

How much will you have if : S900 invested at 6% compounded semiannually
for 5 years.

Answers

Answer:

Step-by-step explanation:

A = P(1+r/n)^nt

A = 900(1 + .06/2)^(5*2)

A = 900(1.03)^10

A=1209.52

có bao nhiêu hình tứ giác

Answers

Answer:

si si amigo adila

Step-by-step explanation:

(x-7)(x^2+3x-3) multiply the polynomials

Answers

Step-by-step explanation:

= (x - 7)(x² + 3x - 3)

= x³ - 7x² + 3x² - 21x - 3x + 21

= x³ - 4x² - 24x + 21

What are the center and radius of the circle defined by the equation x^2 + y^2 -6x + 8y + 21=0

Answers

Answer:

Step-by-step explanation:

(x²-6x)+(y²+8y)=-21

(x²-6x+9)+(y²+8y+16)=-21+9+16

(x-3)²+(y+4)²=4

center=(3,-4),radius=√4=2

Intersection and conditional probability problem. Can anyone help solve this problem?

Answers

Part (a)

Refer to figure 1 in the attached image below. The a,b,c,d,e are placeholders for numbers we'll fill in later (that turns into the table for figure 2). Hopefully you agree about the placement of the numbers. If there's any confusion, then please let me know.

Along the bottom row, we can see that 39+e = 65 which solves to e = 26 after you subtract 39 from both sides. This tells us that there are 26 non-physics majors (ie their major is anything but physics).

Then along the "non-physics" column, notice how b+6 = e, which is the same as b+6 = 26 after replacing 'e' with 26. Solving that equation leads to b = 20. So we have 20 people who are seniors and non-physics majors.

Now move to the top row. We can see that a+b = 30, which is the same as a+20 = 30 because we plug in b = 20. That solves to a = 10. So we have 10 seniors who are physics majors.

----------------

Now along the first column, we have a+c = 39, aka 10+c = 39, which solves to c = 29. There are 29 non-seniors who are physics majors.

The last variable to find is variable d.

Along the second row, we can say,

c+6 = d

29+6 = d

d = 35

Or we could say that 30+d = 65 along the last column which also solves to d = 35. This tells us we have 35 non-seniors in the class.

----------------

To summarize so far, we have

a = 10, b = 20, c = 29, d = 35, e = 26

These values will replace the letters as shown in figure 2.

Figure 2 will be used to answer both parts (a) and (b).

----------------

After that (more than) slight detour of filling in the table, we can finally tackle the question at hand. We're asked to find the probability of selecting someone who is a senior and a physics major. We have a = 10 people who fit the description out of 65 total

Divide the two values and reduce the fraction as much as possible

10/65 = (2*5)/(13*5) = 2/13

Answer:   2/13

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

Part (b)

There's a lot going on with part (a). Luckily there aren't many steps here because pretty much all the work has been done already. We'll refer to figure 2 below.

We're told "given the student is a physics major", which means we focus solely on the "physics major" column only. We ignore everyone else because we know 100% that whoever we selected majored in physics.

We have a = 10 seniors who are also physics majors out of 39 physics majors total.

That constructs the fraction 10/39

Answer: 10/39

Divide the following two complex numbers.
3+2i
5-3i

Answers

Step-by-step explanation & answer:

Conjugate = 5+3i

Multiply fraction by conjugate:

(15+9i+10i+6i^2) / (25-9i^2)

Simplify:

(15+19i+6i^2) / (25-9i^2)

i^2 is -1:

(15+19i-6) / (25+9)

So:

9+19i / 34

Into a +bi form:

9/34 + 19i/34

What is the greatest solution of x in the equation x2 + 8x - 30 = 18?
Enter your answer in the box.

Answers

9514 1404 393

Answer:

  x = 4

Step-by-step explanation:

Subtracting 18,  we have the equation ...

  x^2 +8x -48 = 0

  (x +12)(x -4) = 0 . . . . . factored form

The values of x that make these factors zero are the solutions:

  x = -12, x = 4

The greatest solution is x=4.

Answer:

Greatest solution of x = 4

Step-by-step explanation:

x² + 8x - 30 = 18

subtract 18 from both sides

x² + 8 x - 30 - 18 = 18 - 18

x ² + 8 x - 48 = 0

split 8x in middle form

x² + ( 12 x - 4 x ) - 48 = 0

factor out x from the first pair

x ( x + 12 ) - ( 4 x- 48 ) = 0

factor out 4 from the second pair

x ( x + 12) - 4 ( x + 12 ) = 0

x + 12 is common factor

x ( x + 12) - 4 ( x + 12 ) = 0

Group common factor

(x - 4) ( x + 12 ) = 0

When the product of factors equal 0, at least one factor is 0.

x - 4 = 0

x = 4

similarly,

x + 12 = 0

x = - 12

Greatest solution of x = 4

Choose the equation of the line that is parallel to the y-axis.
x = -2
x + y = 0
x = y
y = 2

Answers

Answer:

x=-2

Step-by-step explanation:

If x always = -2, it is a straight vertical line which means it is parallel to the y axis

it's x=-2 because anything just on the x axis without a y is vertical which is parallel to the y axis

Seema is travelling to Guernsey. She travels a distance of 3,800 km by plane to London and then another 400 km to Guernsey. Both planes fly at an average speed of 900 kmh-1.
What is her total flight time in hours and minutes, to the nearest minute?

Answers

9514 1404 393

Answer:

  4 hours 40 minutes

Step-by-step explanation:

The appropriate relation is ...

  time = distance/speed

  time = (3800 km)/(900 km/h) +(400 km)/(900 km/h) = (38+4)/9 h

  = 14/3 h = 4 2/3 h

Seema's flight time is 4 hours 40 minutes.

__

2/3 of 60 minutes is 40 minutes

Use substitution to solve the system of equations and choose the solution from the list below.
Look at the image

Answers

Answer:

Option : ( 2 , 6 )

x = 2, y = 6

Step-by-step explanation:

[tex]y = 4x - 2[/tex]      ---------------- ( 1 )

[tex]y = -2x + 10[/tex]   -------------- ( 2 )

Substitution Method

Substitute ( 1 ) in ( 2 ) :

                           [tex]4x - 2 = -2x + 10\\\\4x + 2x = 10 + 2\\\\6x = 12\\\\x = 2[/tex]

Now substitute x in ( 2 ):

                           [tex]y = -2x + 10\\\\y = -2 ( 2 ) + 10\\\\y = - 4 + 10 \\\\y = 6[/tex]

The perimeter of a rectangle is 12cm the area is 5cm square what is the length of the sides

Answers

Answer:

???

Step-by-step explanation:

L=5 and w=1
Hope this helps

Point B has coordinates (4,2). The x-coordinate of point A is - 1. The distance between point A and
point B is 13 units. What are the possible coordinates of point A?

Answers

Answer:

A (-1,-10) ; A (-1,14)

Step-by-step explanation:

[tex]\sqrt{(-1-4)^2 + (y-2)^2} = 13 \\ 25 + y^2 + 4 -4y = 169[/tex]

y^2 -4y - 140 = 0

Δ/4 = 4 + 140 = 144

y1 = 2 + 12 = 14

y2 = 2 -12= -10

Other Questions
A blue light flashes every 8 seconds.A red light flashes every 12 seconds. Both lights have just flashed together. After how many seconds will both lights flash together ? what is 7 divide 550 A.) Read the beginning of Jason's argumentative speech on the use of Internet slang and answer the question.The use of acronyms, or abbreviations, is not new. In fact, there are examples of the use of acronyms that date back to antiquity. Ancient scribes had a daunting enough task without having to write out every word. The Christian Church has inscribed the acronym INRI, which stands for the Latin Iesus Nazarenus Rex Iudaeorum ("Jesus the Nazarene, King of the Jews") over the crucifix for centuries. American and European corporations discovered long ago that it is easier to remember three letters than it is to remember three names. During the twentieth century, there was an upsurge in the use of acronyms that corresponded with the introduction of highly technical vocabulary. The tendency to shorten has an established history and many of these abbreviations have even found their way into the dictionary. Today, the use of time-saving abbreviations provides the language of internet and other wireless communication. But should it? Unlike in the past, this shortening does not represent a natural and necessary progression of language change. Internet slang is a manifestation of two much more serious problems with modern society intellectual laziness and too little time.Which sentence would provide the best transition into the counterargument paragraph of this essay?1- OMG! don't we have bigger problems as a society than taking a few short-cuts when it comes to communication?2- Until recently, the use of acronyms could be justified in most contexts.3- Many would argue that there is no harm in populating our communication with OMGs and LOLs given their widespread use.4- Intellectual laziness is a treatable disease, while finding more time is much more challenging.__________________________________________________________________B.) Read this excerpt from Jason's persuasive speech and answer the question.The main reason for using a slang unique to the Internet is to make communication easier.Which revision would add supporting evidence to best strengthen Jason's claim?1.) Add this sentence to the above excerpt: However, there is some debate about how internet slang influences everyday language.2.) Add this sentnece to the above excerpt: Studies suggest that saving a few keystrokes can both reduce stress and lead to more productivity.3.) Add this sentence to the above excerpt: However, while Internet slang shortcuts save time for the writer, according to at least one study they take two times as long for the reader to understand.4.) Add this sentence to the above excerpt: Only strict grammarians object, arguing that Internet slang is a degradation of standard usage. Ce sont les filles ______ le pre est acteur. please answer Stationary points. Help ASAP please. Thanks Ive been stuck on these for a while, can someone help? Thank you :) !! Socrates states: consider that each shares in clarity to the degree that the subsection it deals with shares in truth. What does he mean? 4.Please refer to Story A1 and answer the following question. Based on the description of the settling of the novel Sulam which of the following adjectives would most likely describe the behavior of many of its residents? a. Furtive b. Suspicious c. Eccentric d. UnkemptStory A1: The fictional world of Nobel Prize winner Toni Morrison's novel Sulathe African-American section of Medallion, Ohio, a community called the Bottomis a place where people and natural things are apt to go awry, to break from their prescribed boundaries, a place where bizarre and unnatural happenings and strange reversals of the ordinary are commonplace. The very naming of the setting of Sula is a turning upside-down of the expected; the Bottom is located high in the hills. The novel is filled with images of mutilation, both psychological and physical. A great part of the lives of the characters, therefore, is taken up with making sense of the world, setting boundaries, and devising methods to control what is essentially uncontrollable. One of the major devices used by the people of the Bottom is the seemingly universal one of creating a Scapegoat ; in this case, the title character Sulaupon which to project both the evil they perceive outside themselves and the evil in their own hearts. Which recursive sequence would produce the sequence 6, 20, 62, let's tick to the well defined collection How does Shakespeare present the character of Macbeth in Act 2 Scene 1?Please help me with this The median of the data set is? -5+(-4)Adding and subtracting intergers John ........TV every night. ( watch ) Find the sum of the given arithmetic series.24 + 17 + 10 + 3 + ... + (-39) What the midpoint ? Determine the value of x for which r is parallel to s if m angle 1 = 60-2x and m angle 2=70-4x WillGive BrainlistWrite the sentence as an equation The quotient of -112 and 8 amounts to -14 how corruption manifest itself in the private sector When one engages in that person acknowledges viewpoints that may run counter to his/her own?