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
RSB [31]
3 years ago
10

Is the equation -x=1-y and 2+y=x+1 coincident, intersecting, or parallel

Mathematics
1 answer:
yarga [219]3 years ago
4 0
\bf x=1-y\implies x+y=1\implies y=-x+1\\\\
-------------------------------\\\\
2+y=x+1\implies y=x+1-2\implies y=x-1

notice the equations in slope-intercept form, the first one has a slope of -1, the second one has a slope of 1.

if the slopes are equal, and the constant is different, they lines are parallel.

if the slopes are equal, and the constant is the same the equations are exactly the same thing, and the lines are coincident, on slapped on top of the other.

if the slopes differ, like here, then they have a solution, where they intersect.
You might be interested in
Ms. Taylor's students give cards to each of
WITCHER [35]
I think it’s 8 if I’m not mistaken
7 0
3 years ago
The sum of two numbers is 179.<br> Their difference is 133. Find both numbers.
Marianna [84]

Answer:

156,23

Step-by-step explanation:

let the numbers be x and y and x>y

x+y=179

x-y=133

add

2x=312

x=156

156+y=179

y=179-156=23

8 0
3 years ago
Read 2 more answers
Josh practices gymnastics each day
Brums [2.3K]
What is the question?
4 0
3 years ago
The manager of a computer retails store is concerned that his suppliers have been giving him laptop computers with lower than av
yanalaym [24]

Answer: 0.0010

Step-by-step explanation:

Given the following :

Population Mean(m) = 4.2 years

Sample mean (s) = 3.9

Standard deviation (sd) = 0.6

Number of samples (n) = 38

Calculate the test statistic (z) :

(sample mean - population mean) / (sd / √n)

Z = (3.9 - 4.2) / (0.6 / √38)

Z = (- 0.3) / (0.6 / 6.1644140)

Z = -0.3 / 0.0973328

Z = - 3.0822086

Z = - 3.08

From the z table :

P(Z ≤ - 3.08) = 0.0010

5 0
3 years ago
A rectangle has a perimeter of 66 inches. The length is 5 inches longer than the width. What is the length of the rectangle?
torisob [31]

Answer:

I think that it is A. 19

Step-by-step explanation:

I think it is A. because 19x2=38. 19-5=14, 14x2=28. 28+38=66.

P=66

L=19

W=14

Sorry if I'm wrong.

8 0
2 years ago
Other questions:
  • At lunch time Benjamin often borrows money from his friends to buy snacks in the school cafeteria. Benjamin borrowed $0.75 from
    14·1 answer
  • I need you to answer this question really fast and be 100% accurate!!!
    10·2 answers
  • Why will the value of y for the function y equals 5x + 1 always be greater than that of y equals 4x + 1 with X greater than 1?
    9·2 answers
  • Can someone please help me in this math sheet
    11·2 answers
  • Christina is making a salad for a dinner party with 1.78 pounds of lettuce and 4.36 pounds of tomatoes.
    11·1 answer
  • The ratio of the lengths of the sides of △ABC is 3:4:6. The perimeter of the triangle whose vertices are the midpoints of the si
    11·1 answer
  • Ma Brainly trippin I don’t know what to do it keeps on saying "oops.... something went wrong please try again."
    6·2 answers
  • Would anyone help me with this,please ?
    10·1 answer
  • 6/9 = ayuden porfa se los agradeceria​
    11·1 answer
  • 17 x-1=2<br> Work out the value of 2x2
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!