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
kozerog [31]
3 years ago
14

Which matrix equation represents this linear system?

ormula1" title="2x-7y=-1\\x+3y=-5" alt="2x-7y=-1\\x+3y=-5" align="absmiddle" class="latex-formula">

Mathematics
2 answers:
Vedmedyk [2.9K]3 years ago
4 0

B

2x - 7y =  - 1 \\  \\  \\ 1. \: 2x =  - 1 + 7y \\ 2. \: 2x = 7y - 1 \\ 3. \: x =  \frac{7y - 1}{2}

Nikolay [14]3 years ago
3 0

Answer:

The answer is the letter B.

The first column represents the x-values, and the second row represents the y-values.

For that reason, if we have:

2x - 7y = -1

x + 3y = -5

Then, the matrix will be given by:

[ 2      -7

 1        3]

Then, the third colum will be the equality:

[ -1

 -5]

So the correct option is the letter B.

You might be interested in
A dozen muffins costs $5. Large bottles
notka56 [123]

Answer: Option D) 3 x 5 + 4 x 2

Step-by-step explanation:

- Since a dozen muffins costs $5.

Buying 3 dozen muffins means (3 x $5)

- Since Large bottles of juice cost $2.

The cost of 4 large bottles of juice is (4 x $2)

Hence, the total cost is (3 x $5) + (4 x $2)

= $15 + $8

= $23

Now, you'll notice that "3 x 5 + 4 x 2" gives 23.

Thus, it is the only expression that could be used to find the total cost.

5 0
3 years ago
4. Between which two whole<br> numbers does V150 lie?
KonstantinChe [14]

Answer:

12 & 13

Step-by-step explanation:

trust me

3 0
3 years ago
Need help please !!!
ehidna [41]

Using SOH CAH TOA

Sin =opposite/hypotenuse

that means opposite=2

Hypotenuse=3

Cos=Adjacent/Hypotenuse

Using Pythagorean theorem

Hyp^2=Opp^2 +Adj^2

3^2 =2^2+adj^2

9=4+adj^2

9-4=adj^2

5=adj^2

Taking the square root of both sides

√5=adj

:: cos=√5/3

5 0
3 years ago
Lim x -4 sqrt x+20 - sqrt 12-x x^ 2 +3x-4 =
belka [17]
hey jay sorry for the phone number but i did not respond yet but i will text you back when you leave the office
8 0
3 years ago
Read 2 more answers
OMG PLEASE DO WHAT THE INSTRUCTIONS SAY I NEED THIS RN AND IF I DONT I’LL FAIL THE CLASS ILL GIVE BRAINLIEST PLEASE ANSWER CORRE
dsp73

Answer:

01 V READING / VOCABULARY The Prophecy of the Frogs: Write a paragraph (3-4 sentences) in your notebook to explain why this animated film is a tragicomic social fable.  (Why is it a fable, why is it a social fable, why is it tragicomic).  Submit a photo of your work in TEAMS.  

6 0
3 years ago
Other questions:
  • Chris read 20 pages of a novel each day for 9 days during summer break. How many total pages did Chris read during summer break?
    12·1 answer
  • In 8+4=12, the 8 and 4 are
    8·2 answers
  • Will give brainliest answer
    11·1 answer
  • 1. Tristan Sandino is selling his motorcycle. His friend, Rudy, is offering to pay cash in the amount of $8,800. Another friend,
    8·1 answer
  • Find the area of the triangle SHOW WORK
    12·1 answer
  • PLEASE help find measure of angle - TEst review today
    9·1 answer
  • A pair of dice is rolled. What is the probability of getting a sum of 2?
    10·2 answers
  • 7+8/5-2 work it out in BIDMAS
    7·1 answer
  • Someone help and please make sure it’s right :)
    8·1 answer
  • a school counts the number of students taking AMDM and find 221 students taking AMDM. they also count the number of students tak
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!