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
Which of the following are accepted without proof in a logical system? Check<br> all that apply.
attashe74 [19]

the answer is axioms, definitions and postulates.

8 0
3 years ago
Read 2 more answers
Solve for w. <br> 1/7 = -3/2w -4/5 Simplify your answer as much as possible.
Ann [662]
1/7 = -3/2w -4/5
add 4/5 to both sides
1/7 + 4/5= -3/2w
change to common denominator; 5 & 7 go into 35
(1*5)/35 + (4*7)/34= -3/2w
5/35 + 28/35= -3/2w
33/35= -3/2w
divide by -3/2 on both sides; multiply by the reciprocal of -3/2
33/35 * -2/3= w
-66/105= w
simplify by 3
-22/35= w

CHECK:
1/7 = -3/2w - 4/5
1/7= -3/2(-22/35) - 4/5
1/7= 66/70 - 4/5
1/7= 66/70 - 56/70
1/7= 10/70
1/7= 1/7

ANSWER: w= -22/35

Hope this helps! :)
5 0
3 years ago
How many solutions are there to the system of equations graphed below if the lines are parallel?
damaskus [11]
Zero
C is the correct option.
Step-by-step explanation:
In the given graph, the given lines are parallel to each other and hence never intersect.
Now, we know that the intersection point (s) of two curves gives us the solution.
Here the lines are parallel to each other and hence do not intersect each other.
Thus, there would not be any intersection point.
Hence, the system of equations has no solution.
C is the correct option.

Hope this helps

MARK AS BRAINLY PLSSSD
3 0
2 years ago
44. Find f(-3) when f(x) = (x + 1)² +1.<br>[A] 4<br>[B] 10<br>[C] -3<br>[D] 5​
sveticcg [70]
This mean x=-3
(-3+1)^2+1
(-2)^2+1
4+1
5
F(-3)=5
6 0
2 years ago
How to find the indicated angle of a triangle
Irina-Kira [14]
If there’s a missing side you subtract the two know angles from 180*. Plug the two angles into the formula a+b+c=180*. i hope this helps :)
8 0
3 years ago
Other questions:
  • Factor q^2−1<br> A. (q-1)(q+1)<br><br> B. q-1<br><br> C. Can't Factor<br><br> D. (q-1)(q-1)
    7·1 answer
  • Perpendicular lines aretwo distinct coplaner lines that intersect to form what type of angle?
    12·1 answer
  • Orenda bought $36 in school supplies . With a 6% sales tax , what was her total
    8·2 answers
  • Each video game at an arcade requires 55 tokens.Tom has 100 t video game okens. He said he can play 2 games. Is he correct?
    15·1 answer
  • 1) Write (5y)&lt;3 without exponents.​
    14·1 answer
  • ANSWER PLS<br>DONT SEND A LINK IF U DO I WILL REPORT U​
    5·1 answer
  • Math problem<br> No links
    5·1 answer
  • 2 ÷ 1<br> 1 ---<br> 9<br>will give brainliest answer​
    11·1 answer
  • What is the slope of a line perpendicular to the line whose equation is 4x+5y=35. Fully simplify your answer.
    15·1 answer
  • Find the exact interest for $52,600 at 8.5% for 82 days
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!