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
kodGreya [7K]
3 years ago
11

What is 2x+y=0 5x+3y=-11

Mathematics
1 answer:
miv72 [106K]3 years ago
4 0

2x+y=0\qquad\text{subtract 2x from both sides}\\\\y=-2x\\\\\text{Put it to the second equation}\ 5x+3y=-11:\\\\5x+3(-2x)=-11\\\\5x-6x=-11\\\\-x=-11\qquad\text{change the signs}\\\\\boxed{x=11}\\\\\text{Put the value of x to the first equation:}\\\\y=-2(11)\\\\\boxed{y=-22}\\\\Answer:\ \boxed{x=11\ and\ y=-22}

You might be interested in
Determine the slope of the line that passes through each pair of points. <br>A (0,1) ,B (2,7)
valkas [14]
Your answer should be 3

Use this formula to solve slopes:

m = (y2<span> – y</span>1) / (x2<span> – x</span>1<span>) </span>
8 0
3 years ago
Please help with this question, thank you
Semmy [17]
Remark
The key step is just to subtract 5 from both sides. The pointed of the inequality still points away from the variable and towards the number. As long as that remains true, the correct answer can be found.

Solution
2.7 ≤ b + 5  Subtract 5 from both sides.
2.7 - 5 ≤ b
- 2.3 ≤ b      Write with the variable on the left.
b ≥ - 2.3  <<<< answer  
6 0
3 years ago
Read 2 more answers
Now, suppose one of the roots of the polynomial function is irrational. The roots of the function are 2, <img src="https://tex.z
nikklg [1K]

Irrational roots occurs with its conjugate.

Therefore, -√3 is also root of the function.

The answer is -√3.


6 0
3 years ago
Read 2 more answers
In need help with the answer
gayaneshka [121]

Answer:

2

Step-by-step explanation:

there is 2:   3<u>  1  </u>

                      4

3 0
3 years ago
In the function y = a(x – h)2 + k
coldgirl [10]

Answer:

h is the horizontal shift

Step-by-step explanation:

y = a(x – h)^2 + k

This is the equation for a parabola in vertex form

The vertex is ( h,k) and it is shifted from (0,0)

h is the horizontal shift and k is the vertical shift

8 0
3 years ago
Read 2 more answers
Other questions:
  • Bella grew 3/4 of an inch last year. Ben grew 7/10 of an inch. Who grew more?
    8·2 answers
  • A school has 500 students and 30 English teachers and 20 math teachers. The ratio between the number of math teachers and the nu
    5·2 answers
  • A. crystal lund has been your trusted employee for 25 years. she performs all​ cash-handling and accounting duties. crystal just
    12·1 answer
  • If DM 5 37, find the value of r.<br>A) 7<br>B) 15<br>C) 17<br>D) 18​
    7·1 answer
  • Evaluate the Following
    13·1 answer
  • Plis help I need help
    9·2 answers
  • 5x = –25 + 5y <br><br> 10y = 42 + 2x
    8·1 answer
  • 5h/4 , for h = -8 i need in a sentence
    13·1 answer
  • If Cam gets 1000$ dollars every 2 weeks how much money will he make in a year?
    12·2 answers
  • Find the 82nd term of the following sequence.<br><br> -32, -27, -22, ....
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!