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
Taya2010 [7]
3 years ago
5

A) Solve by determinant method: x - y = 2, 2x + 3y = 4​

Mathematics
1 answer:
grin007 [14]3 years ago
4 0

Answer:

x = 2

y = 0

Step-by-step explanation:

x - y = 2

2x + 3y = 4

Using creamers rule of determinants, we have;

D =

|1 1|

|2 3|

Thus; D = (1 × 3) - (1 × 2)

D = 1

Dx =

|2 1|

|4 3|

Dx = (2 × 3) - (1 × 4)

Dx = 2

Dy =

|1 2|

|2 4|

Dy = (1 × 4) - (2 × 2)

Dy = 0

Thus;

x = Dx/D = 2/1

x = 2

y = Dy/D = 0/1

y = 0

You might be interested in
A taxi charges a flat fee of $4.00 plus $3.25 per mile. How much will it cost to travel 7.1 miles? Round your answer to the near
Leto [7]
It will cost $23.08 (:
4 0
3 years ago
Read 2 more answers
MATH HELP PLEASE!!! USA TESTPREP!!
MaRussiya [10]

Answer:

B.) -3

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Please help me with this problem
deff fn [24]

Answer:

C.  -3(√y)(∛x²)

Step-by-step explanation:

Recall the rule for exponents with fractions.  The numerator represents the power the variable is raised by, and the denominator represents the which root will be taken.  

y^1/2 equals √y

and x^2/3  equals ∛x²

So the answer is -3(√y)(∛x²)

Look at the attached image for more clarification

7 0
3 years ago
What is the equation of the line that passes through the points given in the table
Zepler [3.9K]

Answer:

B: y = -2x + 5

Step-by-step explanation:

-2 - 1 = -3

9 - 3 = 6

\frac{6}{-3} = -2

gradient = -2

3 = 1 x -2 + c

3 = -2 + c

5 = c

y intercept = 5

equation = y = -2x + 5

so the answer is option b

7 0
3 years ago
X^2+ 6x + 8<br> Vertex:<br> Axis of symmetry:<br> Y-intercept:<br> X-intercept:
Bogdan [553]

Answer:

( + 2 ) ( + 4 )

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • URGENT!!!!!!!!!!11!! Plz HElP
    8·1 answer
  • You roll two standard number cubes. What is the probability that the sum is odd, given than one
    7·1 answer
  • Is (1,-3) a solution to y+-x-2
    13·1 answer
  • Find the x- and y- intercepts of 2x -2y = -6
    7·2 answers
  • HELP PLEASE!!! THANKS!!
    12·1 answer
  • A sphere has a volume of 850 m^3 find its surface area
    8·1 answer
  • Proportional relationship ​
    6·1 answer
  • Solve for the letter t
    6·1 answer
  • PLEASE HELP ME ON THIS QUESTION ASAP!!!!
    11·1 answer
  • Verify that each equation is an identity.<br><br><br> Show Work plzz!!
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!