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
erma4kov [3.2K]
3 years ago
8

Perform the indicated matrix row operation and write the new matrix

Mathematics
1 answer:
Ne4ueva [31]3 years ago
5 0
The given operation involves just swapping the two rows, so carrying out R_1\leftrightarrow R_2 on the matrix gives

\left[\begin{array}{cc|c}5&5&5\\1&-\dfrac23&5\end{array}\right]\to\left[\begin{array}{cc|c}1&-\dfrac23&5\\5&5&5\end{array}\right]
You might be interested in
I’m a right triangle the length of the hypotenuse is 12and the length of one leg is 8 . What is the length of the other leg?
denis23 [38]

Answer:

other leg is 8.94

Step-by-step explanation:

Pythagorean Theorem  is a² + b² = c²

a and b are legs

c is the hypotenuse

8² + b² = 12²

64 + b² = 144

-64          -64

        b² = 80

        √b² = √80

         b ≈ 8.94

3 0
3 years ago
7x 1 1/5 enter answer as a mixed number
Leno4ka [110]

The answer is

8 \frac{2}{5}

6 0
2 years ago
Brandon sights a helicopter above a building that is 200 feet away at an angle of elevation of 30 degrees. To the nearest foot,
Firlakuza [10]
The problem says that <span>Brandon sights a helicopter above a building that is 200 feet away at an angle of elevation of 30 degrees. So, you can calculate the height asked, by following this procedure:
</span>
 Tan(α)=Opposite leg/Adjacent leg

 α=30°
 Opposite leg=x
 Adjacent leg=200 feet

 When you substitute these values into the formula above (Tan(α)=Opposite leg/Adjacent leg), you have:

 Tan(α)=Opposite leg/Adjacent leg
 Tan(30°)=x/200
 
 You must clear "x":

 x=200xTan(30°)

 Therefore, the value of "x" is:

 x=115 feet
<span>
 How high above the ground the is the helicopter?

 The answer is: 115 feet</span>
4 0
3 years ago
What is the word form of the number 602,107?
Nadusha1986 [10]
<span><u>Answer</u>
Six hundred and two thousand, one hundred and seven.

<u>Explanation </u>
When writing numbers in words you consider the place value of the digits forming that number. A digit is defined by its place value.
In the questions above, 6 is in hundred thousands place, 0 in ten thousands place, 2 in thousands place, 1 in hundreds place, 0 in tens place and 7 in ones place.
So, the 602, 107 in words is Six hundred and two thousand, one hundred and seven. 
</span>
3 0
3 years ago
I JUST NEED 4 PLS!!!!!!
Alchen [17]

Answer:

C

Step-by-step explanation:

When doing 4 divided by 2 you get 2. Looking at the sign it is saying 3 is greater than the number we solve for. Since we solved and got 2 we can double check and ask is 3 greater than 2? Yes it is so that would make the statement correct.

Hope this Helps :)

6 0
3 years ago
Other questions:
  • Fraction in simplest form
    13·2 answers
  • Name both pairs of alternate exterior angles
    8·2 answers
  • Solve for x, check the image below
    13·2 answers
  • + COLORE
    6·1 answer
  • Which number line shows Point A at −2, Point B at 3.5, Point C at −3 and 1 over 2, and point D, which is the opposite of point A
    14·2 answers
  • What common base can be used to rewrite each side of the equation<br> 2<br> 3<br> 5<br> 8
    5·2 answers
  • What is 10and 1 half divided by 7 eights​
    11·2 answers
  • Alexander and his children went into a grocery store and he bought $6 worth of
    7·1 answer
  • At a carnival, food tickets cost $2 each and ride tickets cost $3 each. A total of $1,240 was collected at the carnival. The num
    12·1 answer
  • How to find area of a triangle.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!