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
masya89 [10]
3 years ago
5

Which of these systems of linear equations has no solution? A. 2 x + 8 y = 15. 4 x + 16 y = 30. 2 x minus B. y = 18. 4 x + 2 y =

38. C. 4 x + 7 y = 17. 8 x minus 14 y = 36. D. 4 x minus 3 y = 16. 8 x minus 6 y = 34.
Mathematics
1 answer:
Ilya [14]3 years ago
7 0

Answer:

D. 4 x minus 3 y = 16. 8 x minus 6 y = 34

Step-by-step explanation:

A. 2 x + 8 y = 15. 4 x + 16 y = 30.

Multiply the first equation by 2

4x+16y = 30  This is identical to the second equation so there are infinite solutions

B. 2 x - y = 18. 4 x + 2 y = 38.

Multiply the first equation by 2

4x -2y = 36.  Add to the second equation  8x = 74  so there is one solution

C. 4 x + 7 y = 17. 8 x minus 14 y = 36.

Multiply the first equation by 2

8x +14y = 34  Add this to the second equation  16x = 70   There is one solution

D. 4 x minus 3 y = 16. 8 x minus 6 y = 34.

Multiply the first equation by 2

8x - 6y = 32  Subtract this from the second equation 8x - 6y = 34

0 = 2

This is never true so there is no solution

You might be interested in
What is (1, -2) and (2, 2) as a linear equation
frutty [35]

Answer:

y=4

Step-by-step explanation:

y=2+2/2-1

y=4

8 0
3 years ago
The princess examines one plant and can’t seem to locate its roots. The plant is labeled as p(x)=x^2+x+3 Which values should the
AleksAgata [21]
Let's actually find the roots, using the quadratic formula:

<span>p(x)=x^2+x+3 gives us a=1, b=1 and c=3.

                 -1 plus or minus sqrt(1^2-4(1)(3))
Then x = -----------------------------------------------          
                                           2

The discriminant here is negative, so the roots x will be complex:

              -1 plus or minus sqrt(-11)      -1 plus or minus i*sqrt(11)
       x = ---------------------------------- = -------------------------------------
                          2                                                 2

These are irrational roots; they cannot be expressed as the ratios of integers.</span>
8 0
4 years ago
Organize the following polynomial expressions from least to greatest based on their degree: x 2xyz 9x3y2 18x2 5ab − 6y 4x4 3x2 −
Advocard [28]

The order will be IV, III, I, and II.

<h2>Polynomial</h2>

Polynomial is an algebraic expression that consists of variables and coefficients. Variable are called unknown. We can apply arithmetic operations such as addition, subtraction, etc. But not divisible by variable.

Given

 I.  x + 2xyz

II.  9x³y²

III.  18x² + 5ab - 6y

IV. 4\rm x^{4} + 3x² - x - 4

<h3>To find </h3>

The polynomial expressions from least to greatest are based on their degree.

<h3>How to organize?</h3>

4\rm x^{4} + 3x² - x - 4 is a biquadratic ploynolmial.

18x² + 5ab - 6y is a cubic polynomial.

x + 2xyz is a quadratic polynomial.

9x³y² is a monomial polynomial.

So the order will be IV, III, I, and II.

More about the polynomial link is given below.

brainly.com/question/17822016

8 0
2 years ago
X/3+5=10 solve for x only type the numerical answer below
Artist 52 [7]

Answer:

x=15

Step-by-step explanation:

x/3=10-5

x/3=5

x=5*3

x=15

8 0
3 years ago
Read 2 more answers
write the condition to be satisfied by q so that a rational number p/q has a terminating decimal expansion​
hjlf
For a rational number to have a terminating decimal expansion
q should be in the form 5^m and 2^n or both. If q is not in the form of either then it is a non terminating recurring decimal expansion
6 0
3 years ago
Other questions:
  • Find the sum of first seventeen numbers of an ap whose 4th and 9th tearm are -15 and -30
    5·1 answer
  • Which describes a statistic of a sample?
    10·2 answers
  • The most important math skill for making change is
    13·1 answer
  • Translating a sentence into a multi step equations; Two less than the product of five and a number is seven
    13·1 answer
  • A canoe shop owner wants to order more life jackets, He records what size life jackets he sells on one particular day to determi
    14·1 answer
  • two pathways meet at 30 degrees to eachother. one pathway has lighting and the other does not. the distance between successive l
    14·1 answer
  • What is the solution to the equation1 over the square root of 8 = 4(m − 2)? (1 point)
    7·2 answers
  • I have 12 coins x of them are R5 coins and the rest are R1 coins. An expression in the in terms of x for the number of R1 coins
    6·1 answer
  • Can anyone help me please:)
    10·2 answers
  • This is my last question i swear pls help
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!