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
snow_lady [41]
3 years ago
8

Solve by using elimination 2x-6y=18 -2x + 4y = -6 ( , )

Mathematics
1 answer:
Anna11 [10]3 years ago
3 0

Answer:

x = -9,

y = -6

Step-by-step explanation:

2x - 6y =18

-2x + 4y = -6

you can add the equations together as is and eliminate x

-2y = 12

y = -6

then plug back in,

2x - 6(-6) = 18

2x + 36 = 18

2x = -18

x= -9

You might be interested in
Determinants and matrix <br><img src="https://tex.z-dn.net/?f=%20%7C%20%5Cfrac%7B7%7D%7B4%7D%20%5C%20%5Cfrac%7B9%7D%7B3%7D%20%20
zavuch27 [327]
<h2>>> Answer </h2>

_________

\ \:

  • \sf{| \frac{7}{4} \frac{9}{3}  |  = a}

\sf \:  |a|  = ad - bc

\sf\:  |a|   = (7 \times 3) - (9 \times 4)

\sf \:  |a|  = 21 - 36

\sf \:  |a|  =  \bold{ \blue{ - 15}}

3 0
3 years ago
Read 2 more answers
Plz help MATH HW<br>explain/answer
Misha Larkins [42]

No because the sum could also be irrational number which for example it could be square root of 9 or 49

       Hope this helps answer your question

6 0
3 years ago
Write an equation of a parabola with a vertex at the origin and the given focus 10. Focus at (-1,0)
Nostrana [21]

Step-by-step explanation:

focus(p) is on the x axis= -1

vertex=(0,0)

parabola equation----- (y-h)^2 =4p(x-k)

(h, k)=(0,0)

(y-0)^2 =4(-1)(x-0)

|

|

|

y^2 = -4x

that is the answer

3 0
2 years ago
Write an exponential function in the form y = ab that goes through points (0,19)<br>and (5,4617).​
gtnhenbr [62]

Answer:

y = 1/2 (2)x

     Step-by-step explanation:

Using the equation y = abx , substitute both of your given points into that equation.

2 = ab2 and 4 = ab3   Solve each equation for a.

2⁄b2    and 4⁄b3 = a     Therefore, 2⁄b2 = 4⁄b3

                             

Cross multiply: 2b3 = 4b2     Divide both sides by b2

2b = 4      a = 2/4 = 1/2

b = 2

3 0
3 years ago
If two angles are complementary, which is the sum of their measurements?
Anna [14]

Answer: a complimentary angle measures 90 degrees. The measure of 2 complimentary angles would be 2x90=180


Step-by-step explanation:


5 0
3 years ago
Read 2 more answers
Other questions:
  • I need help fast if you can PLEASE HELP
    14·1 answer
  • A piece of duct measures 48 inches. When pieces are fitted together, 1 12
    10·1 answer
  • Number 8 fill in the blanks
    7·2 answers
  • how to discriminant of each quadratic equation then state the number and type of solutions. yall fr help me
    9·1 answer
  • Keith will run at most 39 miles this week. So far, he has run 21 miles. What are the possible numbers of additional miles he wil
    12·1 answer
  • Which describes where living and nonliving parts of an environment interact with and rely on each other?
    14·1 answer
  • Two minor league baseball players got a total of 220 hits. Washington had 10 more hits than Sanchez. Find the number of hits for
    10·1 answer
  • I NEED SOMEONE WHO IS GOOD AT MATH AND WHO CAN GIVE ME THE RIGHT ANSWERS FOR THESE ASAP NO LINKS !!!
    12·2 answers
  • PLEASE HELP!! 20 POINTS!!
    9·1 answer
  • For A-C, select True or False for each statement about the sequences of transformations that can verify that triangle ABC is con
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!