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
uranmaximum [27]
3 years ago
11

The augmented matrix of a consistent system of five equa- tions in seven unknowns has rank equal to three. How many parameters a

re needed to specify all solutions?
Mathematics
1 answer:
dangina [55]3 years ago
5 0

Answer:

It is necessary four parameters.

Step-by-step explanation:

Since the augmented matrix of the consistent system has rank equal to three then the number of free variables is (number of unknows)-rank then there are 7-3=4 free variables. This means that are necessary four parameter to specify all solutions.

You might be interested in
Value of the expression 6x-2y 5y when x=10 and y=3.
vfiekz [6]

Answer:

-150

Step-by-step explanation:

Multiply & Divide left to right

60-2*35*3

Once again Multiply & Divide

60-210

Add & Subtract

Final Answer: -150

6 0
2 years ago
2x+3-5x+7<br> Find the Term for this question please?
zvonat [6]

Answer:

The correct answer for this question is −3x+10 and the term is 5x

7 0
3 years ago
Select all of the following that are quadratic equations.
goldenfox [79]

Answer:

1. x² + 3x - 5 = 0

2. x² - x = 3 x + 7

4. 7x² + 14x = 0

Step-by-step explanation:

A Quadratic equation takes the form;

ax² + bx + c = 0

a, b, c are constants and a cannot be 0.

Options 1 fits this;

x² + 3x - 5 = 0

Option 2 fits this as well;

x² - x = 3 x + 7  

x² -x - 3x - 7 = 0

x² - 4x - 7 = 0

Option 4 fits this as well if c = 0.

7x² + 14x + 0 = 0

8 0
2 years ago
Write an equation in slope-intercept form for the line that passes through (2,-2) and is perpendicular to x + 5y =6
Oksana_A [137]
X + 5y = 6
5y = -x + 6
y = -1/5x + 6/5....the slope here is -1/5. A perpendicular line will have a negative reciprocal slope. All that means is flip the original slope and change the sign. So we flip -1/5 and make is -5/1....and we change the sign...making it 5/1 or just 5. So our perpendicular line will have a slope of 5.

y = mx + b
slope(m) = 5
(2,-2)...x = 2 and y = -2
sub and find b, the y int
-2 = 5(2) + b
-2 = 10 + b
-2 - 10 = b
-12 = b

so ur perpendicular equation is : y = 5x - 12 <=
3 0
3 years ago
PLS HELP ME I NEED ANSWER FAST
vaieri [72.5K]

Answer:

it is a.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • Round 630 to the nearest hundred
    12·1 answer
  • What is the coefficient in the algebraic expression 7XY squared ?
    13·1 answer
  • Help me plz <br> Find the area of the circle use 3.14 for pi
    14·2 answers
  • Of the 50 students in the cafeteria, 7 have red hair. Suppose there are 750 students in the school. Write a proportion that coul
    8·1 answer
  • If asked to solve an oblique triangle and you are given only the three angles, it would be best to use the Law of Cosines.
    6·1 answer
  • Im 10 years old and my sister is 4 years younger than me. 60 years later how old is my sister?
    9·1 answer
  • How do I find the area of an octagon which has 7m on each side and the height is 8.8m
    15·1 answer
  • If each triangle is the right Triangle yes or no?
    8·1 answer
  • There are 8 cups of pasta in 22 servings. Write a proportion that gives the number x of cups of pasta in 3 servings.
    13·1 answer
  • The domain of u(x) is the set of all real values except 0 and the domain of v(x) is the set of all real values except 2. What
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!