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
Marat540 [252]
3 years ago
13

Are the following 2x2 matrices inverses or not? 1 ㅔ 1 2 & 0 1 30 2 -1

Mathematics
1 answer:
fiasKO [112]3 years ago
5 0

Answer: A . Not all 2 × 2 matrices have an inverse matrix. If the determinant of the matrix is zero, then it will not have an inverse; the matrix is then said to be singular. Only non-singular matrices have inverses.

Step-by-step explanation:

You might be interested in
What’s the area of a circle to the nearest square foot with the radius of 7000 use 3.14 for pie
yawa3891 [41]
Pi*r^2
3.14*7000^2
153,860,000
7 0
3 years ago
Cynthia invests some money in a bank which pays 5% compound interest per year. She wants it to be worth over £8000 at the end of
Agata [3.3K]

\bf \qquad \textit{Compound Interest Earned Amount}\\\\A=P\left(1+\frac{r}{n}\right)^{nt}\quad \begin{cases}A=\textit{accumulated amount}\to &8000\\P=\textit{original amount deposited}\\r=rate\to 5\%\to \frac{5}{100}\to &0.05\\n=\begin{array}{llll}\textit{times it compounds per year}\\\textit{is only once, so}\end{array}\to &1\\t=years\to &3\end{cases}

\bf 8000=P\left(1+\frac{0.05}{1}\right)^{1\cdot 3}\implies 8000=P(1.05)^3\implies \cfrac{8000}{1.05^3}=P\\\\\\6910.70\approx P\implies  \stackrel{\textit{rounded up}}{6911 = P}\qquad  therefore\qquad 6911~~\leqslant ~~P

6 0
3 years ago
Explain how you can use the distributive property to check the binomial factors when a trinomial has been factored. Include an e
erica [24]
What you can do is split one of the binomials and then apply the distributive property if f(x) = (x + 3)(x -2) split the 1st binomial f(x) = x(x -2) + 3(x -2) now apply the distributive property to get
f(x)=x2−2x+3x−6
which simplifies to
f(x)=x2+x−6
4 0
3 years ago
Read 2 more answers
Solve the following equation algebraically:
worty [1.4K]
B because 6 times 2 is 12...
4 0
3 years ago
Read 2 more answers
Carol's monthly take home pay is $1500.she spends $250.a month on food. What the ratio of food costs to take home dollars
Basile [38]

Answer:

The answer is 6 ratio because when you divide these two number then the anwer is 6

6 0
3 years ago
Read 2 more answers
Other questions:
  • A math field day competition is held in a room with many tables, and there are 6 stools at each table. Each stool has 3 legs, an
    12·2 answers
  • What is the square root of 66
    7·2 answers
  • what is the area of the combined rectangle below? 20yd would be the base, 12yd would be the base, 5yd would be the height, 3yd w
    7·1 answer
  • Which one is bigger 5 1/4 or 5 5/6
    5·2 answers
  • What is the surface area of this triangular prism rounded to the nearest tenth?
    12·2 answers
  • What is the estimate of 206,834 and 194,268
    13·1 answer
  • John has a part-time job he is praise £6.80 per hour what is his total pay for this week
    6·1 answer
  • What are the coefficients of -4x - 7y + 21z?
    5·2 answers
  • PLEASEEEE HELP ASAPP!!!!! 15 POINTS!!!
    6·2 answers
  • Of the first 52 contestants, exactly 12 contestants win the game. How does the actual number of winners compare to the expected
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!