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
Sergio039 [100]
3 years ago
5

I NEED HELP PLEASE, THANKS! :) Write the augmented matrix for the system of linear equations. –9w + x + 8y + 2z = –6 –5x + 9y –

7z = 6 –3w – 6x + 4y + 9z = 4 –3w – 8x + y = –2

Mathematics
1 answer:
ankoles [38]3 years ago
7 0

Answer:

3rd Matrix

Step-by-step explanation:

When you start putting the coefficients in as the matrix, you see that -9 has to be the 1st number, so that eliminates choice B and choice D as answers. You are left with choices A and C. C is the correct choice because when you plug in the second equation, your coefficient is -5, not 0.

You might be interested in
Multiply the following and provide the product in standard from thank you
LekaFEV [45]

Answer:

x^3 + 4x^2 - 7x - 10

Step-by-step explanation:

To solve this we're going to use Polynomial multiplication, starting by multiplying (x-2)(x+1) = x^2 - 2x + x - 2 = x^2 - x - 2. Next, we will multiply (x^2 - x - 2)(x+ 5) = x^3 + 5x^2 -x^2 - 5x -2x -10 = x^3 + 4x^2 - 7x - 10.

8 0
3 years ago
9. A rectangular garden has a length that is 3 feet longer than its width. Let w represent the width of the garden, in feet. The
inysia [295]

Answer:

B

Step-by-step explanation:

w=width

l=w+3

(w+4)=width+walkway(both sides)

(w+7)=length+walkway(both sides)

7 0
2 years ago
If you know a car travels 30 km in 20 minutes you can find its
Daniel [21]

Answer:

You can find its average speed.

Step-by-step explanation:

To find average speed you can divide distance by time which has been given.

8 0
3 years ago
14. Given: 5x + 4y = 24, x + 7y= 11; Prove: y= 1<br> Statements<br> reasons
Semenov [28]

Answer:

Step-by-step explanation:

We can use the process of elimination as

5x + 4y = 24

5(x + 7y = 11) —>          5x + 35y = 55

5x + 4y = 24

-(5x + 35y = 55)

—————————

-31y = -31

-31y/-31 = -31/-31

y=1

4 0
3 years ago
HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 14PTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
maksim [4K]

Answer:

a. d.

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • sam makes $400 per week plus $20 commission oh each new cell phone plan she sells. write an equation to determine how many new p
    6·1 answer
  • PLZ HURRY IT'S URGENT!!
    14·1 answer
  • If teta is an angle in right angle triangle if tan teta = 3/4 then find sin teta? ​
    14·1 answer
  • Choose the equation that could be used to find two consecutive integers whose sum is 67.
    13·1 answer
  • noah went to the grocery store and bought a package of cookies for $1.79 a loaf of bread for $1.27 and a gallon of milk for $2.4
    9·1 answer
  • Let F(x, y, z) = (5ex sin(y))i + (5ex cos(y))j + 7z2k. Evaluate the integral C F · ds, where c(t) = 8 t , t3, exp( t ) , 0 ≤ t ≤
    10·1 answer
  • Stephen buys a bag of cookies that contains 9 chocolate chip cookies, 7 peanut butter
    12·1 answer
  • Computer salespeople at a local store earn a $100 commission per computer for the first 5 computers they sell each month. For ev
    5·1 answer
  • True or false someone plzzzzz helppppp!!!!
    11·1 answer
  • (20 pts) How would I graph a slope that passes through a certain point? Is there a certain equation that could help me? Say for
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!