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
Which method correctly solves the equation using the multiplication property of equality and the reciprocal of One-third? One-th
Airida [17]

Answer:

Step-by-step explanation:

Given the equation \frac{1}{3}(x+9) = -12

Step 1;

Expand the bracket at the right hand side of the equation to have:

\frac{1}{3}x +\frac{1}{3}(9) = -12\\\frac{1}{3}x+3=-12\\subtracting\ 3\ from\ both\ sides\\\frac{1}{3}x+3-3=-12-3\\\frac{1}{3}x=-15\\

Taking the reciprocal of both sides:

\frac{3}{x} = \frac{-1}{15} \\ cross\ multiplying\\-x =45\\x=-45

4 0
3 years ago
Read 2 more answers
I’m confused someone explain please
Naya [18.7K]

Answer:

3(x - 12)(x + 2)

Step-by-step explanation:

Given

3x² - 30x - 72 ← factor out 3 from each term

= 3(x² - 10x - 24) ← factor the quadratic

Consider the factors of the constant term (- 24) which sum to give the coefficient of the x- term (- 10)

The factors are - 12 and + 2 , since

- 12 × 2 = - 24 and - 12 + 2 = - 10 , thus

x² - 10x - 24 = (x - 12)(x + 2) and

3x² - 30x - 72 = 3(x - 12)(x + 2)

3 0
3 years ago
Solve pls brainliest
navik [9.2K]

Answer:

You can use the scale factor to determine if a picture is an enlargement if the scale factor is greater than 1. If it is less than 1 like 0.9 then the picture would be a reduction because you would be multiplying the number by a number smaller than 1. Now if we have a scale factor greater than 1 let's say 3. Then the picture would be an enlargement because the number is greater than 1.

Step-by-step explanation:

7 0
2 years ago
How do I solve this?
Sav [38]
Just plug in a number
8 0
3 years ago
What are the coordinates of (-3,4) when it is reflected over the y-axis.
AysviL [449]

Answer:

D. (4,3)

Step-by-step explanation:

(-3,4)

Reflection in the y-axis:

Same y, -ve x

(3,4)

Reflection in y = x

(x,y) goes to (y,x)

(3,4) goes to (4,3)

3 0
3 years ago
Other questions:
  •  Find the factors of 3x2 − 33x + 84
    12·2 answers
  • Which statement best describes the zeros of the function h(x) = (x-4)2(x - 7x + 10)?
    6·1 answer
  • 1). f(x) = 3x + 15 then what's f^-1(x)?​
    15·1 answer
  • Which construction is the Perpendicular Bisector Construction?
    8·1 answer
  • The product of 7 and a number,
    7·1 answer
  • Idk is g<br><br><br><br>reat. bsdka<br><br>tell me how to delete question blabla​
    8·2 answers
  • What is the solution to the system of equations below?
    14·2 answers
  • In a unit circle, 0 = 270º. What is the terminal point?
    15·1 answer
  • I need help with this if you know the right awnser
    11·1 answer
  • Solve the following equation for the given variable.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!