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]
4 years ago
10

Determine if the solution set for the system of equations shown is the empty set, contains one point or is infinite.

Mathematics
2 answers:
ankoles [38]4 years ago
4 0
I hope this helps you



1)



x= -2y


2. (-2y)+4y=0


0=0


2)


x+2x= -3


x=-1


y= -2


3)


7x+2x+2=4



9x=2


x=2/9


y=2/9+1


y=11/9
Alinara [238K]4 years ago
4 0
<span>1.
x + 2y = 0
2x + 4y = 0

Coincident

------------------------------
2.
</span>y = 2x
<span>x + y = -3
⇒ x + 2x = -3
⇒ x = -1
⇒ y = -2
Solution is (</span><span><span>-1, -2)
------------------------------------
</span>
3.</span><span>
y = x + 1
</span>
<span>7x + 2y = 4
⇒ 7x + 2x +2 = 4
⇒ 9x = 2
⇒ x = 2/9
y = 1+ x = 11/9

Solution is </span><span>(2/9, 11/9)

-------------------------------------------

Hope it helps!
</span>
You might be interested in
What is a supplementary angle
VMariaS [17]

Answer:

either of two angles whose sum is 180°.

Step-by-step explanation:

Two Angles are Supplementary when they add up to 180 degrees. They don't have to be next to each other, just so long as the total is 180 degrees

4 0
3 years ago
Read 2 more answers
This is a proportion. What is the value of X?
Verizon [17]

Answer:

x = 15 or x = - \frac{2}{5}

Step-by-step explanation:

Cross- multiplying gives

(14x + 6)(17x + 5) = 9x(27x + 11) ( expanding factors )

238x² + 172x + 30 = 243x² + 99x

rearrange into standard form : ax² + bx + c = 0

5x² - 73x - 30 = 0 ← in standard form

consider the factors of the product 5 × - 30 = - 150 which sum to the coefficient of the x-term (- 73 )

the factors are - 75 and + 2

Use these factors to split the middle term

5x² - 75x + 2x - 30 = 0 ( factor by grouping )

5x(x - 15) + 2(x - 15) = 0 ← take out the factor (x - 15)

(x - 15)(5x + 2) = 0

equate each factor to zero and solve for x

x - 15 = 0 ⇒ x = 15

5x + 2 = 0 ⇒ x = - \frac{2}{5}


7 0
3 years ago
Identify the value of y<br><br><br> (3y+5)=-4-8y+9+77
noname [10]

Answer:

Y=7

Step-by-step explanation:

(3y+5)= -4 -8y +9 + 77

     -5    -5            

    3y= -9 - 8y + 9 + 77

           +9          -9

    3y=  -8y + 77

    +8y    +8y

      11y = 77

      11y/11    77/11

        y = 7

1. subtract 5 from both sides

2. add -9 and +9 and you get 0

3. add 8y to both sides

4. divide both sides by 11

5. you get y=7

3 0
3 years ago
Look at the pic and help if you can thxxxx
givi [52]

Answer:

The 1,3,and 4.

Step-by-step explanation:

6 0
3 years ago
What is 7 divided by 2/3
soldier1979 [14.2K]

Answer:

10.5

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • You are carpeting a rectangular room that is 3.5 yards by 4.5 yards. The carpet costs $15 per square yard. How much will it cost
    6·1 answer
  • If the diameter of a regulation size basketball is 9.4 inches, what is the surface area? Round to the nearest tenth.
    7·2 answers
  • Please give me an answer
    13·2 answers
  • Write the ratio as a fraction in lowest terms.
    6·1 answer
  • HELPPP WIL MARK BRANLIEST IF RIGHTTT
    9·2 answers
  • IF 2^x=10 AND 10^y =128 ,find xy
    6·1 answer
  • Find the definition for Rectangle
    15·1 answer
  • Is 9r+16=5 a literal equation? Explain.
    14·1 answer
  • Two groups of tourist fly to Japan. It takes the first group 4 hours less than the second to fly
    10·1 answer
  • Find the rule and solve for n<br> Please help me I need this now.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!