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
Anton [14]
2 years ago
7

Help I will give brainiest​

Mathematics
2 answers:
spin [16.1K]2 years ago
8 0

Answer:

B (4, 9)

Step-by-step explanation:

Isolate one of the variable on the first equation

5 = -x + y

turn to

x = y - 5

Then insert this into the second equation

3 = 3(y - 5) - y

Simplify-

3 = 3y - 15 - y

3 = 2y - 15

Add 15 to both sides

18 = 2y

Divide by 2

9 = y

knowing y = 9 you can assume that -

(x, 9)

This means the only possible answer is B

Vika [28.1K]2 years ago
6 0

Answer:

c and b

Step-by-step explanation:

You might be interested in
Find the polynomial function
laiz [17]

Answer:

y = 2x³ +x² -3x +6

Step-by-step explanation:

The polynomial correlation function of a graphing calculator can work with the table of function values to give you the equation. (See attached)

_____

If you want to solve this by hand, you can write the equations for the unknown coefficients in the polynomial function, then solve those. First of all, notice that you are given the y-intercept, (0, 6), so you know one of the coefficients already. That leaves a system of 3 equations in 3 unknowns that need to be solved.

___

<em>Writing the equations</em>

... ax³ +bx² +cx +6 = y . . . . the generic linear equation in a, b, c that you're writing

For x = -1:

... -a +b -c +6 = 8

For x = 1

... a + b + c + 6 = 6

For x = 2

... 8a +4b +2c +6 = 20

In augmented matrix terms, this set of linear equations looks like ...

\left[\begin{array}{ccc|c}-1&1&-1&2\\1&1&1&0\\8&4&2&14\end{array}\right]

___

<em>Solving the equations</em>

There are a number of ways to solve these. Again, a graphing calculator often has solution functions, such as reducing a matrix to row-echelon form, that will solve this in a keystroke or two.

If you add the first two equations, you get ...

... 2b = 2 ⇒ b = 1

Substituting that into the first equation allows you to simplify it to ...

... -a -c = 1

Dividing the third equation by 2 (and substituting for b) makes it ...

... 4a +c = 5

Adding these equations gives ...

... 3a = 6 ⇒ a = 2

Then ...

... c = -a -1 = -2 -1 = -3

And our polynomial function is ...

... y = 2x³ +x² -3x +6

7 0
3 years ago
Help with this .........
Umnica [9.8K]

9514 1404 393

Answer:

  x = 30

Step-by-step explanation:

Supplementary angles total 180°.

  5x° +x° = 180°

  6x = 180

  x = 180/6 = 30

The value of x is 30.

6 0
3 years ago
Anyone please answer !!!!! Happy holidays!
ValentinkaMS [17]

Answer:

(4, 0)

Step-by-step explanation:

6x-3y=24\\-3y=24-6x\\y=-8+2x\\0=-8+2x\\8=2x\\

x=4 when y=0, and in x-intercepts, we are trying to find the value of x when y=0, which is why (4, 0) is the point of interception.

5 0
2 years ago
Read 2 more answers
What is the answer to 5+5=
HACTEHA [7]
The answer to 5+5 is 10
3 0
3 years ago
Read 2 more answers
Let $G$ denote the centroid of triangle $ABC$. If triangle $ABG$ is equilateral with side length 2, then determine the perimeter
belka [17]
Hey there!

You are trying to find the perimeter of triangle ABC. Each side is 2. Since there are 3 sides on a triangle, multiply 2 by 3 to get 6. You do not need the centroid for this problem.

I hope this helps!
5 0
3 years ago
Other questions:
  • A jet boat is used to take canoers 200 miles upriver to their starting point. As the driver of the jet boat, Jeremy knows that i
    6·2 answers
  • yoko has 40 holiday stamps and 25 president stamps in her stamp collection. what is the ratio of the number of holiday stamps to
    5·1 answer
  • The graphs below have the same shape. What is the equation of the blue graph?
    12·1 answer
  • Who ever gets this wright first gets a thanks :D
    8·1 answer
  • QUESTION 2 of 10: The average adult working male spends approximately $60 per week on a moderate cost healthy diet plan. The ave
    13·1 answer
  • Will mark brainliest if correct
    11·1 answer
  • A person who is 2 m tall casts a shadow that is 5 m long. At the same time, a building casts a shadow that is
    14·1 answer
  • Compare the functions shown below:<br><br> Which function has the greatest maximum y-value?
    15·1 answer
  • Find the value of the power.
    7·2 answers
  • Need helping asap thx
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!