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
Fantom [35]
2 years ago
7

(1 point)

Mathematics
1 answer:
guapka [62]2 years ago
7 0

The statements A, B, D, and E are defined.

When we multiply matrices, the number of columns of the 1st matrix must equal the number of rows of the 2nd matrix.

<h3>What is the subtraction of the matrix?</h3>

When we add or subtract matrices, the number of rows and columns must be the same.

A) If C is 7x3 and A is 3x2, that means C has 3 columns and A has 3 rows. So C * A is defined.

B) When you transpose a matrix, the number of rows and columns are switched. So C^T has 3 rows and 7 columns. So C^T is defined.

C) B has 2 columns and C has 7 rows, so B * C is not defined.

D) Because A and B have the same number of rows and columns, we can add them. So A + B is defined.

E) B^T has 2 rows and 3 columns, and C^T has 3 rows and 7 columns. So B^T has the same number of columns as the number of rows as C^T. So B^T * C^T is defined.

F) C and A have different numbers of rows and columns, so C-A is not defined.

To learn more about the matrices visit:

brainly.com/question/94574

#SPJ1

You might be interested in
How do you write the vertex form equation of the parabola #y=2x^2 +11x-6#?
liubo4ka [24]
The easist way to find the vertex is to complete the square:

y=2x^2 +11x-6  =>  <span>y=2[ x^2 + (11/2)x  + (11/2)^2   - (11/2)^2 ]  - 6  

This can be rewritten as 
                                y = 2[(x+11/2)^2 ] -(121/4) - 24/4

                                y = 2 (x+11/2)^2 - 145/4

this is the equation in vertex form.  The vertex is at (-11/2, -145/4).</span>
5 0
4 years ago
M angle a=40° then m angle b=?​
grigory [225]

Answer:

not enough info

Step-by-step explanation:

5 0
3 years ago
Please answer quickly:
mina [271]

You have to move variables on one side and constants on the other   aby - b + b = c + b aby = c + b y = (c + b)/ab

3 0
3 years ago
Read 2 more answers
HELP!! Create a system of equations with the solution (-4, 1)
Delvig [45]

9514 1404 393

Answer:

  x -y = -5

  3x +y = -11

Step-by-step explanation:

We assume you want two linear equations. Since you know a point on each line, the only thing you need to choose is the slope of the two lines through that point. We can make the slopes be +1 and -3, for example. Then the point-slope equations are ...

  y -k = m(x -h) . . . . . . line with slope m through point (h, k)

 y -1 = +1(x +4)

  y -1 = -3(x +4)

We can use these equations "as is", or put them in whatever form you like. I personally prefer "standard form:" ax+by=c.

<u>First equation</u>:

  y -1 = x +4 . . . . . . eliminate parentheses

  -5 = x -y . . . . . . . keep positive x term, put x and y together, separate from the constant

  x - y = -5 . . . . . . standard form

<u>Second equation</u>:

  y -1 = -3x -12 . . . . eliminate parentheses

  3x +y = -11 . . . . . . add 3x+1 to both sides

__

A system of equations with solution (-4, 1) is ...

  • x - y = -5
  • 3x + y = -11

5 0
3 years ago
The radius of a circle is 1 kilometer. What is the circle’s circumference?
yulyashka [42]

Answer:

2\pi

Step-by-step explanation:

Formula of circumference is C = 2\pi r

r = radius

plug in the numbers into formula to get

2\pi (1) which will eqaul 2\pi

7 0
3 years ago
Other questions:
  • A person buys 28 bottles of orange juice for a party. The store clerk offers cardboard carrying cases for the bottles, each case
    8·1 answer
  • 4/6 - 3/6 = ?
    13·2 answers
  • 3. A rectangular prism has dimensions of 1 , 2, and in. (a) What is the volume of the prism? Show your work and express your ans
    7·1 answer
  • If a triangle has one angle with a measure of 50° and another angle that measures 70º, what is the measure of the third angle?
    11·1 answer
  • What is the height of our classroom door is it a statistical or non statistical question
    7·1 answer
  • Hour how much does davon charge per hour for a skateboard rental HELPP I BEG
    12·1 answer
  • Solve the system of linear equations by substitution.<br><br> 4x−2y=14<br> y=0.5x−1
    13·1 answer
  • Mrs. Wolboldt ordered her daughter a book that cost $18.00. Tax is 6%. How much tax will she have to pay????
    7·2 answers
  • I need help with fractions
    11·1 answer
  • Assume that when adults with smartphones are randomly selected , 44% use them in meetings or classes. If 8 adult smartphone user
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!