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
FrozenT [24]
3 years ago
15

What are the solution of the following system X-y=-4 / 4x-4y=-16

Mathematics
1 answer:
Ugo [173]3 years ago
4 0

Solve equation [1] for the variable  y  

 [1]    y = -x - 4

Plug this in for variable  y  in equation [2]

  [2]    4x - 4•(-x -4) = 16

  [2]    8x = 0

Solve equation [2] for the variable  x  

   [2]    8x = 0  

  [2]    x = 0  

By now we know this much :  

   x = 0

   y = -x-4

Use the  x  value to solve for  y  

   y = -(-0/32766)-4 = -4  

Solution :

{x,y} = {0/32766,-4}

{x,y} = {0,-4}

You might be interested in
Hey Guys!
zaharov [31]
<h3>Answer: D)  -3</h3>

Explanation:

Recall that y = f(x) since both are outputs of a function.

If k = 2, then f(x) = 2 leads to y = 2 being a horizontal line drawn through 2 on the y axis. This horizontal line only crosses the cubic curve at one spot. The same can be said if k = 0 and k = -2. So we can rule out choices A,B,C.

On the other hand, if k = -3, then f(x) = -3 has three different solutions. This is because the horizontal line through -3 on the y axis crosses the cubic at 3 different intersection points.

7 0
2 years ago
Read 2 more answers
HELP ASAP I’ll reward most brainlyestttttt
PolarNik [594]

Answer:

y = 2/3 x + 2

Slope intercept form is the form of y=mx + b.

The slope is 2/3, so that is m, and from looking at the graph, we know that the y intercept is (0,2), so b has the value of 2.

I hope this helps! Please let me know if you have any more questions!

4 0
3 years ago
PLEASE HELP IM DESPERATE WILL GIVE BRAINLIEST ONLY ANSWER IF YOU ARE HELPING
VARVARA [1.3K]

Answer:

48

Step-by-step explanation:

u • w

= (i + 6j ) • (9i - 2j )

= (1 × 9 ) + (6 × - 2 )

= 9 + (- 12)

= 9 - 12

= - 3

v • w

= (5i - 3j ) • (9i - 2j )

= (5 × 9) + (- 3 × - 2)

= 45 + 6

= 51

Then

u • w + v • w

= - 3 + 51

= 48

7 0
3 years ago
If your good at maths help me
ahrayia [7]

Answer:

6n+1

Step-by-step explanation:

first term=13-6=7

nth term=7+(n-1)6=7+6n-6=6n+1

3 0
3 years ago
Read 2 more answers
What’s the unit rate for 400 in 8 hours? Please help.
laila [671]
I think the answer is: 1/50
7 0
3 years ago
Other questions:
  • The coordinates of the vertices of quadrilateral ABCD are A(-1, -1), B(-3, 3), C(1, 5), and D(5, 2).
    11·1 answer
  • Two angles are complementary. If the measure of angle 1 is 24.2○,what is the measure of angle 2?
    11·1 answer
  • when Sally picks any number between 1 and 20, doubles it, adds 6, divides by 2 and subtracts 3, she always gets the number she s
    12·2 answers
  • Middle School Math
    13·1 answer
  • Becky graphs a system of two linear equations and determines that (1,5) and (3,7) are solutions.
    7·1 answer
  • The question is in the image.
    11·1 answer
  • In a cookie mix, we find cinnamon cookies, raisin cookies, and pinwheel cookies in a ratio of 3 : 1 : 2. If a bag of the mix con
    9·1 answer
  • A painter used 2 1/2 gallons of paint to paint 1/3 of a room. At this same rate, how many gallons will it take to paint the whol
    10·2 answers
  • A rectangle has an area of 18 cm², with a perimeter of 18 cm. Find the length and breadth
    5·1 answer
  • A bakery gave a doughnut to every fifth customer and a cupcake to every twelfth customer. In one day, 8 doughnuts and 3 cupcakes
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!