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
Eva8 [605]
3 years ago
14

Cramer's rule:

Mathematics
1 answer:
Irina18 [472]3 years ago
5 0

Answer:

a. \quad\dfrac{\left|\begin{array}{cc}148&14\\246&5\end{array}\right|}{\left|\begin{array}{cc}-2&14\\3&5\end{array}\right|}=52

Step-by-step explanation:

To find the value of x, Cramer's rule says you replace the x-coefficients with the equation constants to form the matrix whose determinant is the numerator of the fraction. The denominator is the determinant of the matrix of coefficients. The equation constants are 148 and 246, so you expect to find those in the first column of the numerator (answer choices A and C).

\dfrac{\left|\begin{array}{cc}148&14\\246&5\end{array}\right|}{\left|\begin{array}{cc}-2&14\\3&5\end{array}\right|}=\dfrac{-2704}{-52}=52

The calculation is carried out correctly only in answer choice A.

You might be interested in
Please help me with this please
Reika [66]

9514 1404 393

Answer:

  0

Step-by-step explanation:

The forces are equal and opposite, so the net force is zero.

  5N -5N = 0

4 0
3 years ago
What’s the answer to this question
Makovka662 [10]
25......................
5 0
3 years ago
Read 2 more answers
What is the absolute value of -200?
rodikova [14]
Answer: 200

The absolute value of any number is how many spaces away it is from 0 on the number line
5 0
3 years ago
Read 2 more answers
Is 10 gallons greater or 1280 fluid ouncez
Cerrena [4.2K]
There are 128 fluid oz in 1 gallon
10*128=1280

so they are both the same
10 gallons=1280 fluid oz
6 0
3 years ago
Read 2 more answers
Convert 5.764764764... to a rational expression in the form of a/b where b=0
Valentin [98]
Say x=5.764---
Then 1000x=5764.764---
Then 1000x-x = 5759
So 999x = 5759
So x=5759/999

I don't see how b can be 0 in this case... what does that mean? You would never divide by 0 and live to tell about it, right?
4 0
3 years ago
Other questions:
  • Nikita borrows 1 superhero book and 1 dragon book from the library. The superhero book has a mass of 200 grams. The dragon book
    14·1 answer
  • If you increase your current quality score of 85% by 7%, you will have a score of __________.
    5·1 answer
  • (50)points 5 questions
    15·2 answers
  • Help ASAP also Pls put explanation along with answer (#7)
    11·1 answer
  • Write an expression to show the perimeter of the rectangle. Then find the
    5·2 answers
  • Which is the completely factored form of 12x^3 – 60x2 + 4x – 20?
    5·1 answer
  • PLEASE HELP
    9·1 answer
  • If 1/3 of 33 bakers can make 89 pretzels in 2 1/2 hours, then how many pretzels can 5 3/4 bakers make in 1 1/2 hours? Explain yo
    12·1 answer
  • What is the result of (5/8)⁴
    10·2 answers
  • What is: <br><br><br> -24 - (-64)
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!