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
Elenna [48]
4 years ago
7

Which is the solution of the following system of equations: 2x + y = 4 3x – y = - 14

Mathematics
1 answer:
murzikaleks [220]4 years ago
3 0

2x + y = 4 \\ 3x - y =  - 14

Lets add 2 equations

5x =  - 10 \\ x =  - 2

Now we need to put x into any equation

2 \times ( - 2) + y = 4 \\  - 4 + y = 4 \\ y = 8

Answer: (-2; 8)

You might be interested in
If a package of corn chips weighs 1.2 ounces what is the weight in ounces of 48 packages ?
Naya [18.7K]
I'm not usually good at these questions but you can get a calculator that does weight multiplied by units.
so with your question it would be :

1.2 ounces x (48 units)
=  57.6 ounces




57.6 ounces
5 0
4 years ago
Read 2 more answers
chegg evaluate the following integral using trigonometric substitution. dx/square root(x^2-81), x > 9
vesna_86 [32]

Integration will be ln | ( x /9 ) + ( \sqrt{(x/9)^{2} - 1 } ) | + c  .

Given  ∫ 1 dx / ( x^{2} - 81 )

Put ,

x = 9 secθ

dx = 9 secθ tanθ dθ

and

\sqrt{x^{2}  - 9^{2} } = 9 tanθ

Substituting values in  ∫ 1 dx / ( x^{2} - 81 ) ,

∫ (9 secθ tanθ ) dθ / ( 9 tanθ )

∫ secθ dθ = ln | secθ + tanθ | + c

                = ln | ( x /9 ) + ( \sqrt{x^{2}  - 9^{2} } / 9 ) | + c

              = ln | ( x /9 ) + ( \sqrt{(x/9)^{2} - 1 } ) | + c

Hence , the integration will be ln | ( x /9 ) + ( \sqrt{(x/9)^{2} - 1 } ) | + c .

To learn more on integration follow link :

brainly.com/question/20156869

#SPJ4

6 0
2 years ago
How to Answer this i dont know please like it was not in the book im so confused
Marina CMI [18]

The solution to the system of inequalities given is: \frac{4}{3} \leq y \leq 4

<h3>What is the solutions to a system of inequalities?</h3>

The solution is the set of values that respect all conditions of the system.

The first condition is:

3y - 13 \geq -9

3y \geq 4

y \geq \frac{4}{3}

The second condition is:

3y - 13 \leq -1

3y \leq 12

y \leq \frac{12}{3}

y \leq 4

The intersection of the conditions, which is the solution to the inequality, is:

\frac{4}{3} \leq y \leq 4

More can be learned about a system of inequalities at brainly.com/question/3656398

#SPJ1

5 0
2 years ago
Britton Hill, Florida is located at an elevation above sea level.
skelet666 [1.2K]

Answer:

345 feet

Step-by-step explanation:

If you don't know about Britton Hill, Florida, you're probably not a mountain climber, and you're definitely not a highpointer. At 345 feet above mean sea level, Britton Hill is Florida's highest natural point and the lowest "high point" in the United States.

6 0
3 years ago
Find the interest earned.
SCORPION-xisa [38]
June is 30 days
30-12=18 days
July is 31 days
August is 30 days
Time=18+31+30=79 days
A=2,750×(1+0.035÷365)^(79)
A=2,770.91
Interest earned
I=A-p
I=2770.91-2750
I==20.91
4 0
3 years ago
Other questions:
  • In a survey, 56 percent of people surveyed stated truthfully that they were married, while 30 percent of the people surveyed who
    11·1 answer
  • How many solutions can a consistent system of linear equations have?
    15·1 answer
  • On a coordinate grid, the coordinates of vertices P and Q for Polygon PQRS are P(1, 3) and Q(−3, 3). What is the length of Side
    6·2 answers
  • Give the convex pentagon, what are the values for x and y?
    13·1 answer
  • Carlos has a string that is 24 inches long he wants to divide it into three equal parts write an equation to find how long each
    13·1 answer
  • Simplify <br><img src="https://tex.z-dn.net/?f=3%20%5Cfrac%7B1%7D%7B4%7D%20%20-%204%20%20%5Cfrac%7B2%7D%7B5%7D%20" id="TexFormul
    11·1 answer
  • Write 25 % as a fraction
    8·2 answers
  • Which value must be added to the expression x2 + 12x to make it a perfect-square trinomial?
    6·1 answer
  • Use the method of your choice to solve the following system of equations. Write your solution as a coordinate.
    8·1 answer
  • Simplify the algebraic expression <br> 3/4(4x-8y)
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!