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
AURORKA [14]
3 years ago
14

Dante is solving the system of equations below.

Mathematics
2 answers:
KatRina [158]3 years ago
5 0

Answer: The answer is C. -4, -9/5, 3

Step-by-step explanation:

I just took the test

max2010maxim [7]3 years ago
3 0

Answer: The answer is the first matrix. Image attached.

Step-by-step explanation: Given that Dante is solving the system of equations:

r+s-t=-4,\\2r-3s+t=1,\\3r-2s+2t=3.

In solving the above system of equations, Dante writes the row echelon form of the matrix. We are to select the correct row echelon of the matrix that he wrote.

We know that a matrix is said to be in row echelon form if the leading entry in each nonzero row is a 1 and each column containing a leading 1 has zeros everywhere else.

In the given options, these conditions are satisfied by the first option only. And also, if we write the solution from this matrix, we will have

r = -1,  s = 0  and  t = 3.

If we substitute these values in the given system, it will get satisfied.

Thus, the first matrix, attached herewith, is the correct matrix.

You might be interested in
N
sergeinik [125]

Answer: (0,4)

Step-by-step explanation:

3 0
2 years ago
Solve the following equation by using the addition principle. Check the solution.
omeli [17]

Answer:

y = 11/20

Step-by-step explanation:

-4/5 + y = -1/4

Add 4/5 to each side

-4/5  +4/5 + y = -1/4+4/5

y = -1/4 + 4/5

Get a common denominator

y = -1/4 *5/5   + 4/5 *4/4

y = -5/20 + 16/20

y = 11/20

Check

-4/5 +11/20 = -1/4

Get a common denominator

-4/5*4/4 + 11/20 = -1/4*5/5

-16/20 +11/20 = -5/20

-5/20 = - 5/20

Check

3 0
3 years ago
Read 2 more answers
Can someone please help me find the surface area of C before 8:30?!
avanturin [10]
There are some area calculators on google if you need but I will try work it out..... if I don’t know I won’t send another answer
4 0
3 years ago
Three ice cream cones cost $8.40. At this rate, how much do two ice cream cones cost?​
serg [7]

Answer:

two cost 5.6 dollars

Step-by-step explanation:

8.4 / 3=2.8$

2.8*2=5.6$

6 0
3 years ago
Read 2 more answers
4.
Ganezh [65]

Answer:

B) No, they are not congruent.

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Need help please!!!!!
    9·2 answers
  • 7x-11=5(x-2)+2x-1= ?​
    6·1 answer
  • Need help on attached problem
    6·1 answer
  • Use repeated subtraction to divide 95/10
    11·1 answer
  • Determine if the two functions f and g are inverses of each other algebraically. If not, why not?
    9·1 answer
  • I will give branliest if it let's me! Please help! I'll give 5 star rating, thanks and 40+ points!
    6·2 answers
  • What is a cube in math
    10·2 answers
  • Someone help please?
    14·1 answer
  • At CFIS Intermediate school, 40% of the 500 students ride their bikes or walk to school. How many students ride their bikes or w
    15·1 answer
  • Can someone pls help for brainlest
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!