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
Andrei [34K]
3 years ago
10

What is a symmetric matrix?

Mathematics
1 answer:
horsena [70]3 years ago
7 0

Answer:

symmetric matrix is the square matrix and it is equal to its transpose

Step-by-step explanation:

solution

a symmetric matrix is the square matrix and it is equal to its transpose

As A is symmetric matrix  then

A = A^{T}

here only square matrices will be symmetric

and matrix A is symmetric its mean its matrices have equal dimension

and every square diagonal matrix is also symmetric when all off diagonals element is zero

symmetric matrix for all indices i and j

A = aij = aji

You might be interested in
What is the solution to the system of equations represented by the two equations?
nexus9112 [7]
Just substitute the first equation into the second and solve for x: <span><span>32</span>x=−<span>12</span>x+4⟹2x=4⟹x=2</span><span>Now, since y = 3/2 * x, we have y = 3 and we are done.</span>
8 0
2 years ago
Ashley found 78 rocks on Monday. on Tuesdays Devin found 45 rocks how many did the find both days
scoundrel [369]
Lets look at the info we have:-

Ashley found 78 rocks on Monday.
Devin found 45 rocks on Tuesday. 

Question:-

How many did they find both days?

The key word for this is "both". So we need to add here. Lets add:-

78 + 45 = 123

So, Ashley and Devin together found 123 rocks.

Hope I helped ya!! xD
3 0
3 years ago
Evaluate-2x3 - 2x2 - 4x-2 for x=-2.<br> A.-18<br> B. 16<br> C. -2<br> D. 14
dmitriy555 [2]

Answer:

14

Step-by-step explanation:

-2x^3 - 2x^2 - 4x-2

Let x = -2

-2 (-2)^3 - 2 (-2)^2 -4(-2) -2

Exponents first

-2 (-8) -2 (4) -4(-2) -2

Then multiply

16 -8 +8 -2

Then add and subtract

14

4 0
2 years ago
Graph the exponential model y=3(6)^x Which point lies on the graph? (-9 2) (-1, -18) (1, 18) (2, 9)
svetlana [45]

Answer:

(1,18)

Step-by-step explanation:

use a graphing calculator to graph the function

then, graph all the coordinates given and find on that's on the graph

7 0
3 years ago
0.016 as a fraction in simplest form
puteri [66]
0.016 as a fraction is 16/1000 and in simplest form it is 2/125.

An easy way to figure out the fraction of a decimal is by the decimal places. As we can see, there are four numbers in our decimal (0.016). 

The first decimal place = ones 
The second decimal place = tenths
The third decimal place = hundredths 
The fourth decimal place = thousandths

We stop at the thousandths place, so basically, take 16 and put it over 1000, which looks like 16/1000.

6 0
3 years ago
Read 2 more answers
Other questions:
  • Write the standard equation for the ellipse with the given conic form.
    12·1 answer
  • A sea bird is 28 meters above the surface of the ocean. What is its elevation?
    11·1 answer
  • Which equation produces a line that is perpendicular to the line represented by the function below? y=2/5x+9
    12·1 answer
  • Write a capital letter that appears to have perpendicular line segments?
    10·2 answers
  • • Close the window with the Nearpod lesson to return to the rest of the lesson and cli
    14·1 answer
  • Find the Y- intercept of the following y=7/2 x - 10/7
    10·2 answers
  • Can someone PLEASE help me?
    7·2 answers
  • Express the recuring decimal 0.004 as a fraction. (simplified fraction) (only the 4 is recurring)
    13·1 answer
  • In finding the product of (x+2) (x+3) using the FOIL METHOD, what is the LAST step? *
    12·1 answer
  • Kevin hired a moving company. The company charged $400 for its services, and Kevin gives the movers a 15% tip. How much does Kev
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!