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
Savatey [412]
3 years ago
10

URGENTE, POR FAVOR

Mathematics
1 answer:
Firlakuza [10]3 years ago
6 0
\mathbf A=\begin{bmatrix}a_{1,1}&a_{1,2}\\a_{2,1}&a_{2,2}\end{bmatrix}

a_{i,j}=2i-j\implies\mathbf A=\begin{bmatrix}2\cdot1-1&2\cdot1-2\\2\cdot2-1&2\cdot2-2\end{bmatrix}=\begin{bmatrix}1&0\\3&2\end{bmatrix}

Por la misma razón,

\mathbf B=\begin{bmatrix}1-1&2-1\\1-2&2-2\end{bmatrix}=\begin{bmatrix}0&1\\-1&0\end{bmatrix}

Entonces,

4\mathbf A=\begin{bmatrix}4\cdot1&4\cdot0\\4\cdot3&4\cdot2\end{bmatrix}=\begin{bmatrix}4&0\\12&8\end{bmatrix}

\mathbf A-\mathbf B=\begin{bmatrix}1&0\\3&2\end{bmatrix}-\begin{bmatrix}0&1\\-1&0\end{bmatrix}=\begin{bmatrix}1-0&0-1\\3-(-1)&2-0\end{bmatrix}=\begin{bmatrix}1&-1\\4&2\end{bmatrix}

\mathbf B^\top=(b_{j,i})_{2\times2}=\begin{bmatrix}b_{1,1}&b_{2,1}\\b_{1,2}&b_{2,2}\end{bmatrix}=\begin{bmatrix}0&-1\\1&0\end{bmatrix}

Yo no reconozco la notación "Ae"... Puedes explicarla?

a_{1,1}\cdot b_{1,1}=1\cdot0=0

a_{2,2}\cdot b_{1,2}=2\cdot1=2
You might be interested in
Which statement is true about an angle?
Sveta_85 [38]
Where are the statements please?
4 0
3 years ago
Read 2 more answers
Figure a is a scale image of figure b. what is the value of x? please answer asap!
emmainna [20.7K]

<em>Greetings from Brasil...</em>

According to the statement, one figure is scaled in relation to another, so we can apply similarity to polygons.....

So

BIG/small = BIG/small

or

small/BIG = small/BIG

12.5/10 = X/16

OR

10/12.5 = 16/X

12.5/10 = X/16

10X = 12.5 · 16

X = 200/10

<h3>X = 20</h3>
8 0
4 years ago
PLEEAASEE HELP!!! Suppose Q and R are independent events. Find P(Q and R) if P(Q) = 4/5 and P(R) = 4/11.
kari74 [83]
The answer is C. 16/55 because P(Q and R) = P (Q) . P (R) (for independent events Q and R) 

So, the prob. is 4/5 * 4/11 = 16/55 = D. 
5 0
3 years ago
Read 2 more answers
Please help 15 points dont answer if u dont know
Anuta_ua [19.1K]

Answer:

answer is 1000 9000 and 1!

Step-by-step explanation:

how it helped

7 0
3 years ago
1/2 of the base times the height is the area of a *?
Juli2301 [7.4K]

Answer:

Triangle

Step-by-step explanation:

The triangle has the formula that have b*h/1/2.

5 0
3 years ago
Read 2 more answers
Other questions:
  • |-4a+10|=2 solve this eqation asasp 50 pts!
    11·2 answers
  • Suppose Jose buys 4 pounds of sausage that cost $8.79 per pound, a bottle of mustard that costs $1.38, and two loaves of Cuban b
    6·2 answers
  • In the coordinate plane, choose the graph with the conditions given. x + y &gt; 10​
    12·1 answer
  • Negative 4 is greater than or less than negative 1
    9·2 answers
  • Which expression is equivelent to 2(4x - 3) + 3x -1
    8·2 answers
  • A cone is sliced exactly in half from the vertex to a diameter of the base. What shape is formed?
    14·1 answer
  • Larry bought 12 containers of pasta salad for a school picnic. Each container held the same number of ounces of salad. Students
    11·1 answer
  • This is amazing and whare did you get this information from
    12·2 answers
  • What the answer to this
    13·1 answer
  • What is the equation of the line that passes through the point (−1,1) and has a slope of 5?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!