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
puteri [66]
3 years ago
12

Part A: Create a system of linear equations with no solution. In two or more complete sentences, explain the specific characteri

stics that you included in each equation to ensure that the system would not have a solution.
Part B: Using one of the equations that you created in Part A, create a system of linear equations that has one solution (x, y). Use substitution to solve the system.
Mathematics
1 answer:
Dmitrij [34]3 years ago
6 0
Part A.
You need two equations with the same slope and different y-intercepts.
Their graph is parallel lines. Since the lines do not intersect, there is no solution.

y = 2x + 2
y = 2x - 2

Part B.
We use the first equation as above. For the second equation, we use an equation with different slope. Two lines with different slopes always intersect.

y = 2x + 2
y = -2x - 2

In the second equation, y = -2x - 2. We now substitute -2x - 2 for y in the first equation.

-2x - 2 = 2x + 2

-4x = 4

x = -1

Now substitute -1 for x in the first equation to find y.

y = 2x + 2

y = 2(-1) + 2

y = -2 + 2

y = 0

Solution: x = -1 and y = 0
You might be interested in
Five whole numbers are written in order
xenn [34]

Answer:

The values of x and y is given by the equation 4x-y=20+y.

Step-by-step explanation:

Given : Five whole numbers are written in order  4 6 x y 10 , the mean and median of the five numbers are the same.

To find : The values of x and y ?

Solution :

Observations 4, 6, x, y, 10.

Mean is summation of observation divided by number of observation.

i.e. m=\frac{\sum x_n}{n}

m=\frac{4+6+x+y+10}{5}

m=\frac{20+x+y}{5}

Median is middle term of observations.

Median of odd terms M=\frac{n+1}{2}^{th} term

M=\frac{5+1}{2}^{th}

M=3^{rd} term

M=x

The mean and median of the five numbers are the same.

i.e. \frac{20+x+y}{5}=x

20+x+y=5x

4x-y=20+y

The values of x and y is given by the equation 4x-y=20+y.

5 0
3 years ago
Read 2 more answers
Suppose the base of the prism was a rectangle of sides I and w. Type a formula for the volume of the prism using i, w and h
tester [92]

Answer: V = l  w  h

Step-by-step explanation:

Hi, to answer this question we have to apply the formula for the volume of a rectangular prism.

Volume of a rectangular prism (V) = Length x Width x Height

Replacing with the values given:

V = l w h

All values are multiplied (didn’t use x as a multiplication symbol to avoid confusion)  

Feel free to ask for more if needed or if you did not understand something.

7 0
3 years ago
Find the sum of -3a and 5a -3
zepelin [54]

Find the sum of -3a and 5a -3

-3a + (5a-3)

2a-3

4 0
3 years ago
What is the answer to this question <br> 2x - 6x
Angelina_Jolie [31]

Answer:

-4x

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Does 10cm, 30cm, and 15cm form a triangle????
Helen [10]

Answer:

No, because the 3 angles of a triangle must add up to 180 degrees and yours only add up to 55

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • An artist wants to frame a square with an area of 400 square inches. She wants to know the length of the wood trim that is neede
    15·1 answer
  • What is the radian of a 260 degree angle.
    9·1 answer
  • (m-5)(m-2) simplified
    5·1 answer
  • Which way does the Nile River run?
    11·1 answer
  • I dunno- I tried to delete a question and now it's just this
    8·2 answers
  • What is 3333 ×679 ÷5559​
    7·2 answers
  • Kayla works as a hairdresser. She earned $228.50 in tips in five days. If she earned the same amount each day, about how much di
    8·1 answer
  • What is 1/4(8+x+4) simplified using the distributive property
    6·2 answers
  • (50 points + brainliest if found useful.)
    6·2 answers
  • Gary and Jessica exercise for a total of 18 hours per week. Jessica exercises 2 less than 3 times the hours that Gary exercises.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!