1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kupik [55]
3 years ago
5

90 POINTS IF ANSWER IS RIGHT!!!!!!!!!! PLEASE I NEED HELP!!!!

Mathematics
2 answers:
olganol [36]3 years ago
8 0

Answer:

no solution

Step-by-step explanation:

–5x – 12y – 43z = –136

–4x – 14y – 52z = –146

21x + 72y + 267z = 756

Every coefficient of the second equation is a multiple of 2, so divide both sides by 2.

Every coefficient of the third equation is a multiple of 3, so divide both sides by 3.

–5x – 12y – 43z = –136

–2x – 7y – 26z = –73

 7x + 24y + 89z = 252

Let's call the above system the "simplified original system."

Using the simplified original system, multiply the first equation by -2 and the second equation by 5. Then add them.

          10x + 24y + 86z = 272

(+)      -10x - 35x - 130z = 365

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

                   -11y - 44z = 637

Now we have an equation with only y and z.

Now, using the simplified original system, multiply the second equation by 7 and the third equation by 2. Then add them.

        –14x – 49y – 182z = –511

(+)       14x + 48y + 178z = 504

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

                     -y - 4z = -7

Now we have a system in 2 unknowns, y and z.

-11y - 44z = 637

-y - 4z = -7

Multiply the second equation by -11 and add to the first equation.

      -11y - 44z = 637

(+)     11y + 44z = 77

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

                 0 = 714

Since 0 = 714 is false, this system has no solution.

Shalnov [3]3 years ago
7 0

Answer:

No solution

Step-by-step explanation:

You might be interested in
If a rectangle measures 21 centimeters by 28 centimeters what is the length in centimeters of the diagonal of the rectangle
SOVA2 [1]

Answer:

35cm

Step-by-step explanation:

Given data

Length= 21cm

Width= 28cm

Diagonal= ???

Applying Pythagoras theorem

D^2= L^2+W^2

D^2= 21^2+28^2

D^2= 441+784

D^2= 1225

D= √1225

D= 35cm

Hence the diagonal is 35cm

4 0
3 years ago
PLZ HELP!!!! WILL GIVE BRAINLIEST + WORTH 10 POINTS!!! THX!!!!
mafiozo [28]

Answer:

I got this answer hope works...

5 0
3 years ago
Read 2 more answers
What is the vertex of the parabola?<br><br>A. (-1,0)<br>B. (0,-3)<br>C. (1,-4)<br>D. (3,0)​
katovenus [111]

d. (1,-4) is the answer

7 0
3 years ago
Read 2 more answers
Solve for w. -22w-5)+5w-5(w+4) Simplify your answer as much as possible.​
Anna [14]

Answer: −22w−25

Step-by-step explanation: Distribute:

=−22w+−5+5w+(−5)(w)+(−5)(4)

=−22w+−5+5w+−5w+−20

Combine Like Terms:

=−22w+−5+5w+−5w+−20

=(−22w+5w+−5w)+(−5+−20)

=−22w+−25

8 0
3 years ago
Which function is being graphed below?
Keith_Richards [23]

The absolute function will be f(x) = | x - 5 | - 4.

<h3 /><h3>What is an absolute function?</h3>

The absolute function is also known as the mode function. The value of the absolute function is always positive.

The absolute function is given as

f(x) = | x - h | + k

Where h,k is the vertex of the absolute function.

f(x) = | x - 5 | - 4

Therefore the absolute function will be f(x) = | x - 5 | - 4.

More about the absolute function link is given below.

brainly.com/question/10664936

#SPJ1

4 0
2 years ago
Other questions:
  • 31.
    15·1 answer
  • 6(x+5) please solve it using at least two methods
    13·1 answer
  • Is ‘t is greater than or equal to 14’ correct?
    5·2 answers
  • someone earns a commission she makes 4.5% of the amount she sells she sold 800$ worth of cloths how much was her commission​
    12·1 answer
  • which expression is equivalent to the given expression? 3 (2a+5)....a) 11a. b)6a+15. c) 6a+5. or d) 21a
    5·2 answers
  • 0.05 si 1/10 the valué of
    15·1 answer
  • Factor 18bc + 9ab + 3cb completely.
    9·1 answer
  • Josiah was testing to see the distance his remote would work with his drone. He was
    10·1 answer
  • The radius of a circle is 2 inches. What is the circle's arrea?​
    12·1 answer
  • ABCD is a rectangle. Find the length of segment AC
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!