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
bagirrra123 [75]
2 years ago
8

How do I do this, I really need some help

Mathematics
1 answer:
meriva2 years ago
4 0
You solve for x and get x<-2 or x>= -1/2 and then graph

You might be interested in
Find the inverse of this matrix.<br> 1 -1 -1<br> -1 2 3 <br> 1 1 4
zheka24 [161]

Let's use Gaussian elimination. Consider the augmented matrix,

\left[\begin{array}{ccc|ccc}1 & -1 & -1 & 1 & 0 & 0\\-1 & 2 & 3 & 0 & 1 & 0\\1 & 1 & 4 & 0 & 0 & 1\end{array}\right]

• Add row 1 to row 2, and add -1 (row 1) to row 3:

\left[\begin{array}{ccc|ccc}1 & -1 & -1 & 1 & 0 & 0\\0 & 1 & 2 & 1 & 1 & 0\\0 & 2 & 5 & -1 & 0 & 1\end{array}\right]

• Add -2 (row 2) to row 3:

\left[\begin{array}{ccc|ccc}1 & -1 & -1 & 1 & 0 & 0\\0 & 1 & 2 & 1 & 1 & 0\\0 & 0 & 1 & -3 & -2 & 1\end{array}\right]

• Add -2 (row 3) to row 2:

\left[\begin{array}{ccc|ccc}1 & -1 & -1 & 1 & 0 & 0\\0 & 1 & 0 & 7 & 5 & -2\\0 & 0 & 1 & -3 & -2 & 1\end{array}\right]

• Add row 2 and row 3 to row 1:

\left[\begin{array}{ccc|ccc}1 & 0 & 0 & 5 & 3 & -1\\0 & 1 & 0 & 7 & 5 & -2\\0 & 0 & 1 & -3 & -2 & 1\end{array}\right]

So the inverse is

\begin{bmatrix}1&-1&-1\\-1&2&3\\1&1&4\end{bmatrix}^{-1} = \boxed{\begin{bmatrix}5&3&-1\\7&5&-2\\-3&-2&1\end{bmatrix}}

3 0
3 years ago
From a standard deck of 52 cards, what is the probability of picking a 5 of diamonds at random from the deck?
julia-pushkina [17]

Answer:

Im pretty sure that it would be a 1 out of 52, so go with D.

3 0
3 years ago
Wacky water park<br> Worksheet
timurjin [86]
Please provide context so that we may help with your question
8 0
3 years ago
Read 2 more answers
Devon has $45 in his savings account. which equation can be used to determine how much devon needs to save in order to have $315
Georgia [21]
<span>He has 45 dollars. He needs 315 dollars in order for him to have 315 dollars he would to need to save what? Then take 315-45= 270 dollars. Therefore he would need to save 270 dollars.

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
</span>
6 0
3 years ago
Read 2 more answers
A shipping box is shown below how many cubic feet will the shipping box hold
Feliz [49]

Answer

42

Step-by-step

3 0
2 years ago
Read 2 more answers
Other questions:
  • What is an algebraic expression?
    13·2 answers
  • What is 45 ones times 10? <br><br> Choices are:<br> 45 hundreds<br> 45 tenths <br> or 45 tens.
    10·2 answers
  • An f-statistic is used to select one:
    8·1 answer
  • What two numbers multiply to get -60 and add to get 7?
    8·2 answers
  • Margo is picking up 600 -ohm resistors for a physics project . (Ohms are the units used to measure circuit resistance.) The pack
    10·1 answer
  • Multiply: (2x+5)(3−4x)
    11·1 answer
  • Ed works a normal 38 hour week. He then worked 22 hours of
    10·1 answer
  • Point M lies between points L and N on line LN. If LN = 12x +16, what is the length of line LN in units?
    7·1 answer
  • Answer for brainliest asap
    14·1 answer
  • Work out the area of this triangle.<br> 6 cm<br> 11 cm<br> 12 cm
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!